[go: up one dir, main page]

EP4276378B1 - Air outlet - Google Patents

Air outlet Download PDF

Info

Publication number
EP4276378B1
EP4276378B1 EP23172255.4A EP23172255A EP4276378B1 EP 4276378 B1 EP4276378 B1 EP 4276378B1 EP 23172255 A EP23172255 A EP 23172255A EP 4276378 B1 EP4276378 B1 EP 4276378B1
Authority
EP
European Patent Office
Prior art keywords
air
air outlet
section
cross
air passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP23172255.4A
Other languages
German (de)
French (fr)
Other versions
EP4276378A1 (en
Inventor
Dietmar Rossbruch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krantz GmbH
Original Assignee
Krantz GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krantz GmbH filed Critical Krantz GmbH
Publication of EP4276378A1 publication Critical patent/EP4276378A1/en
Application granted granted Critical
Publication of EP4276378B1 publication Critical patent/EP4276378B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/068—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/072—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser of elongated shape, e.g. between ceiling panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082—Grilles, registers or guards

Definitions

  • the present application relates to an air passage according to the preamble of claim 1.
  • the air outlet comprises a housing, a connection piece for connection to an air distribution system, an interior space delimited by the housing and an air outlet cross-section.
  • the air outlet can be used in particular for installation in a ceiling space between a suspended ceiling and a structural ceiling, wherein the air outlet is preferably positioned on a ceiling panel of the suspended ceiling in such a way that the air outlet cross-section of the air outlet is arranged directly on an upper side of the ceiling panel.
  • a ceiling panel can in particular be a perforated ceiling panel, which is accordingly suitable for replacing an element that spatially delimits the air outlet in the region of the air outlet cross-section.
  • the air outlet can therefore preferably be designed free of built-in components, in particular perforated sheet metal or the like, in the region of its air outlet cross-section.
  • the connection piece is used to connect the air outlet to an air duct, by means of which supply air can be supplied to the air outlet.
  • the housing of the air outlet comprises an air outlet area, the end of which, viewed in the flow direction of the supply air, is formed by the air outlet cross-section.
  • the air outlet area has the shape of a truncated pyramid, which widens when viewed in the flow direction of the supply air.
  • the air outlet area is therefore designed in such a way that walls of the housing in the air outlet area enclose an angle in the range between 5° and 20°, preferably between 7° and 15°, more preferably between 9° and 12.5°, with a plane formed by the air outlet cross-section.
  • the air outlet area is logically separated from the rest of the interior by a first air passage cross-section formed by a cover surface of the truncated pyramid-shaped air outlet area.
  • the supply air which is fed to the air outlet through the connection piece, flows into the interior of the housing and leaves the interior through the air outlet cross-section, whereby the supply air within the interior, starting from an air inlet area into which the supply air enters directly from the connection piece, passes indirectly or directly through the first air passage cross-section into the air outlet area in the form of the truncated pyramid. From the air outlet area, the supply air finally exits the air outlet through the air outlet cross-section.
  • a base area of the The first air outlet area and the first air passage cross-section of the air outlet area are each rectangular, wherein a rectangular air guide element is arranged in the air outlet area, i.e. spatially between the first air passage cross-section and the air outlet cross-section.
  • EP 2 860 467 A1 This describes an air passage comprising a nozzle for connection to an air supply system and a housing which delimits an air distribution space.
  • the housing has an air inlet surface through which air can be introduced into the air distribution space and which can be connected to the nozzle, wherein the housing further has an air outlet surface arranged parallel to the air inlet surface through which the air leaves the air distribution space.
  • the housing is provided with walls which are arranged at an acute angle to the air outlet surface, wherein the air passage has adjustment means for changing a flow direction of the air exiting from the air outlet surface, which can be transferred from a first position to a second position or in the opposite direction.
  • the EP 2 860 467 A1 an air passage according to the preamble of claim 1.
  • the known air outlet is particularly well suited to supplying fresh air to a room in a manner parallel to the ceiling.
  • the fresh air within the air outlet is applied to the walls in the air outlet area, whereby the fresh air is deflected at an acute angle in relation to the air outlet cross-section.
  • the fresh air is therefore not discharged perpendicular to the respective ceiling panel, but at least essentially parallel to the ceiling panel, which avoids drafts for people in the respective room, particularly when supplying cooling air.
  • This type of supplying a room with fresh air has proven to be particularly advantageous for constructions in which the air outlet and therefore the air outlet cross-section have at least essentially a square cross-section.
  • the design of such an air outlet with a rectangular cross-section, the length of which significantly exceeds its width is problematic, since the deflection of the fresh air in a direction parallel to the ceiling cannot be reliably achieved.
  • the present application is therefore based on the object of producing an air outlet by means of which a ceiling-parallel outflow of the supply air is achieved with a rectangular shape of the air outlet cross-section.
  • the air outlet is characterized, among other things, in that the air guide element is plate-shaped and is oriented parallel to the plane defined by the air outlet cross-section.
  • the air guide element has a plurality of perforations through which the supply air can flow.
  • the perforations together form a second air passage cross-section.
  • the air guide element is arranged within the air outlet area in such a way that there is a free space extending all around the air guide element between an outer edge of the air guide element and the walls of the housing. This free space forms a third air passage cross-section through which the supply air can flow as it flows through the air outlet area.
  • the air guide element therefore logically divides the air outlet area into an initial section, into which the supply air passes directly from the air inlet area through the first air passage cross-section, and an end section, from which the supply air flows directly out of the air outlet through the air outlet cross-section.
  • the supply air can flow from the initial section through the air guide element as well as through the free space into the end section.
  • the air guide element is plate-shaped, which according to the present application is to be regarded as a two-dimensional component whose length and width each exceed the thickness of the plate by a multiple.
  • the length and width of the plate exceed the thickness of the plate by more than 100 times.
  • the length of the plate can exceed its thickness by more than 200 times or more than 400 times.
  • the air guide element is a thin, flat component, with the supply air hitting the air guide element.
  • the air guide element can consist of or have a perforated sheet, a screen-printed fabric, a fabric or the like, for example. Combinations are also conceivable.
  • the advantage of arranging a fabric is the reduction of flow noise.
  • the supply air When the air outlet is in operation, the supply air initially enters an air inlet area of the interior of the housing through the connection piece. Inside the housing, the supply air then flows through the first air passage cross-section into the initial section of the air outlet area. Inside the air outlet area, namely between the first air passage cross-section and the air outlet cross-section, the air guide element is arranged, which logically divides the air outlet area into the initial section and the final section. The air guide element forms the second air passage cross-section with its perforations. The supply air can therefore flow in parts through the perforations or through the second air passage cross-section from the initial section into the final section of the air outlet area and in other parts - bypassing the air guide element - through the third air passage cross-section formed by the free space.
  • the third air passage cross-section is not a small, structurally determined free space, but a deliberately provided free space with appropriately selected dimensions.
  • the free space can have a width all around that is between 1 cm and 4 cm.
  • the air outlet according to the invention has many advantages.
  • the air outlet has a rectangular basic shape, which makes it particularly suitable for use on or in narrow ceilings.
  • the even distribution of the supply air both to the narrow sides of the air outlet cross-section and to the long sides of the air outlet cross-section is achieved by means of the air guide element, which has a throttling effect in a central area of the air outlet area, since a flow resistance that opposes the supply air due to the air guide element is greater than in the free space around the edge, which extends between the edge of the air guide element and the wall of the housing.
  • the air guide element therefore causes a large part of a supply air volume flow to pass from the initial section to the end section of the air outlet area as it flows through the free space or the third air passage cross-section, and only a smaller part of the flow passes through the perforations or the second air passage cross-section to the end section.
  • the free space is assigned to the pointed walls of the housing, which make up the truncated pyramid shape of the air outlet area, it is achieved that the supply air is directed to the walls within the air outlet area and then clings to the walls. This in turn leads to a particularly good "snuggling" of the supply air to the respective ceiling panel on which the air outlet is placed.
  • the desired flow of supply air parallel to the ceiling is achieved, which is desirable in order to avoid draughts, especially with cooled supply air.
  • the second air passage cross-section which is formed by the sum of all perforations of the air guide element, has the effect that the supply air - although it is primarily intended to pass through the third air passage cross-section from the initial section to the final section of the air outlet area - does not accumulate on the air guide element and must be completely diverted laterally to the free space. It has been shown that a flow characteristic with such a design is disadvantageous, so the perforations of the air guide element are important for the targeted outflow of the supply air in a direction parallel to the ceiling in relation to the respective ceiling panel.
  • the air guide element of the air passage is formed by a plate, preferably made of metal or plastic, in particular by a perforated sheet.
  • a proportion of a free area defining the second air passage cross-section i.e. the sum of all areas of the perforations, based on a total area of the air guide element, is between 5% and 20%, preferably between 7% and 15%.
  • a large part of a supply air flow can be guided through the third air passage cross-section as it flows through the air outlet area.
  • the thickness of the air guide element is between 0.25 mm and 2.0 mm, preferably between 0.5 mm and 1.5 mm.
  • This embodiment has proven to be particularly advantageous because the air guide element takes on the desired local throttling function, which leads to a significant portion of the supply air being diverted to the third air passage cross-section.
  • the perforations have little influence on the flow direction of the portion of the supply air that passes through the second air passage cross-section into the end section of the air outlet area.
  • the air guide element is attached to the housing. This can be done in particular by means of individual tabs that are connected, for example, to corners of the air guide element.
  • the air guide element can be attached to the housing in such a way that - with the exception of the respective fastening elements - it hangs freely within the air outlet area, so that the free space surrounding the edge is at least essentially freely available as an air passage cross-section for the supply air.
  • the supply air is therefore not faced with any obstacle in the area of the free space or the third air passage cross-section that would impede the flow of the supply air.
  • a narrow side of the free space which describes a minimum distance from a respective point on the edge of the air guide element to the wall of the housing, has a length that corresponds to between 3% and 8%, preferably between 4% and 7% of a width of the base area of the air outlet area.
  • the narrow side is defined as the narrowest point of the cross section of the free space, which defines the third air passage cross section.
  • such a design of the air outlet can be advantageous in which a ratio of a length of the air outlet area to a width of the air outlet area is between 1.5:1 and 5:1, preferably between 2:1 and 4:1.
  • such a design of the air outlet according to the invention can be particularly advantageous in which the air guide element is arranged in a lower half, preferably in a second quarter (viewed from the base area of the air outlet area) of the air outlet area in relation to a vertical axis of the air outlet area. Tests have shown that this arrangement is particularly advantageous for the outflow of the supply air into the respective room through a respective ceiling panel.
  • the air passage between the air inlet area and the air outlet area has a transition area, which is preferably at least essentially cuboid-shaped.
  • the first air passage cross-section which is formed by the cover surface of the truncated pyramid-shaped air outlet area, forms the boundary cross-section between the transition area and the air outlet area in this embodiment.
  • Walls of the housing of the air passage which laterally delimit the transition area, are preferably slightly inclined relative to a vertical, preferably in a range between 1° and 8°, more preferably between 2° and 6°.
  • designs of the transition area in which the walls are inclined in the manner described are also to be understood as "essentially cuboid-shaped" in the sense of the present application.
  • the provision of a transition area has proven to be advantageous for equalizing the flow of the supply air before entering the air outlet area.
  • an advantageous embodiment of the invention provides that the air guide element is arranged within the air outlet area and the air outlet area is therefore logically divided by means of the air guide element into an initial section located above the air guide element and an end section located below the air guide element. Accordingly, as soon as the supply air has passed through the first air passage cross section into the air outlet area, it is initially in the initial section of the air outlet area, from which the supply air can pass through both the second air passage cross section and the third air passage cross section into the end section of the air outlet area. Due to this arrangement of the air guide element, the air exits laterally horizontally and divided under the air guide element. Due to the fact that the air guide element is permeable to air or "porous", the underside of a perforated ceiling panel on which the air outlet is arranged remains free of airborne dust and dirt particles.
  • a ratio of the cross-sectional area of the air outlet cross-section in relation to the cross-sectional area of the connection piece is in a range of 2 to 7, preferably in a range of 3 to 6.
  • a particularly good flow through the air outlet is provided, whereby on the one hand sufficient supply air is provided and on the other hand an optimal flow speed and outflow direction are achieved.
  • a central axis of the connection piece runs orthogonal to a vertical axis of the air outlet. This is particularly advantageous with regard to the reduced space requirement when installing in a ceiling system.
  • the air passage 1 has a basically rectangular shape, as shown below.
  • the air passage 1 comprises a connection piece 3 which opens into a connection box 24. This is particularly clear from the Figures 1 and 2 recognizable.
  • Supply air supplied to the air outlet 1 by means of the air distribution system can thus enter an air inlet area 26 of the interior 4 through the connection piece 3.
  • the air inlet area 26 is formed in the example shown by an interior of the connection box 24 .
  • the supply air flows into a transition area 25 and finally into an air outlet area 6 , which is shaped like a truncated pyramid. This is expressed by the fact that walls 7 of the housing 2 in the air outlet area 6 are inclined at an acute angle 21, which is approximately 10° here, relative to a plane 8, which is formed by a base area 10 of the air outlet area 6.
  • the supply air exits the air passage 1 through an air outlet cross-section 5.
  • the air outlet cross-section 5 is defined by the base area 10 of the air outlet area 6 , as can be seen particularly well from the Figures 4 and 6 results.
  • the base area 10 is rectangular and has a length 17 of approximately 60 cm and a width 18 of approximately 30 cm.
  • the ratio of the length 17 to the width 18 is therefore 2:1. This is particularly evident from Figure 3 .
  • the present air passage 1 comprises a transition area 25 which is essentially cuboid-shaped.
  • the transition area 25 has a wider cross-section than the connection box 24 , with the walls 7 of the housing 2 in the transition area 25 being oriented almost vertically.
  • the walls 7 in the transition area 25 form an angle of approximately 3° with the vertical. This is particularly evident from the Figures 5 and 7 .
  • the supply air flows from the air distribution system (not shown) through the connection piece 3 into the air inlet area 26 and exits from there into the transition area 25.
  • the supply air then passes through a first air passage cross-section 9 into the air outlet area 6.
  • the first air passage cross-section 9 is accordingly formed by a cover surface of the truncated pyramid-shaped air outlet area 6. This is particularly clear from the sectional views according to the Figures 5 and 7 .
  • an air guide element 11 is arranged within the air outlet area 6, i.e. between the first air passage cross-section 9 and the air outlet cross-section 5 , which is here attached to the housing 2 by means of tabs 22.
  • the air guide element 11 is plate-shaped and is formed here by a perforated sheet that is oriented parallel to the base area 10 or the air outlet cross-section 5. As such, it has a plurality of perforations 12 that together define a second air passage cross-section 13.
  • the air guide element 11, which here has a thickness of approximately 1.0 mm, is arranged within the air outlet area 6 in such a way that it does not adjoin the walls 7 of the housing 2 at the edge.
  • a free space 14 extends all the way around the edge between an edge 20 of the air guide element 11 and the walls 7 , through which supply air can also flow.
  • the free space 14 therefore defines a third air passage cross-section 15.
  • the air outlet area 6 is therefore logically divided by means of the air guide element 11 into an initial section 27 located above the air guide element 11 and an end section 28 located below the air guide element 11. Accordingly, as soon as the supply air has passed through the first air passage cross-section 9 into the air outlet area 6 , it is initially in the initial section 27 of the air outlet area 6, from which the supply air can pass through both the second air passage cross-section 13 and the third air passage cross-section 15 into the end section 28 of the air outlet area 6. Starting from the end section 28 , the supply air exits through the air outlet cross-section 5 from the air outlet area 6 and thus from the air passage 1.
  • the air guide element 11, which is arranged here in a lower half of the air outlet area 6 relative to a vertical axis 19 of the air outlet area 6, namely at approximately 40% relative to a height of the air outlet area 6, has the effect of opposing the supply air as a flow resistance, whereby the supply air is diverted proportionately to the edges 20 of the air guide element 11 and thus to the free space 14 or the third air passage cross section 15. Consequently, a large part of the supply air passes from the initial section 27 into the end section 28 through the third air passage cross section 15 , while only a smaller part of the supply air flows through the second air passage cross section 13.
  • the supply air is deliberately directed towards the pointed tapered walls 7 of the air outlet area 6 , whereby the supply air is given a flow direction that is oriented almost parallel to the air outlet cross-section 5. Accordingly, this ensures that the supply air flows at least essentially in a direction parallel to the ceiling when it exits the air outlet 1.
  • the perforations 12 of the air guide element 11 are each circular, with the proportion of the second air passage cross-section 13 formed by the perforations 12 in the total area of the air guide element being approximately 10%. Furthermore, the air guide element 11 is adapted to the housing 2 in such a way that a narrow side 16 of the free space 14 has a length 23 of approximately 15 mm. The narrow side 16 extends by definition between a respective point on the edge 20 of the air guide element 11 and a nearest point on a respective wall 7 of the housing 2. This is particularly clear from Figure 5 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)

Description

Die vorliegende Anmeldung betrifft einen Luftdurchlass gemäß dem Oberbegriff von Anspruch 1.The present application relates to an air passage according to the preamble of claim 1.

Der Luftdurchlass umfasst ein Gehäuse, einen Anschlussstutzen zum Anschluss an ein Luftverteilsystem, einen von dem Gehäuse begrenzten Innenraum und einen Luftaustrittsquerschnitt. Der Luftdurchlass kann insbesondere zur Montage in einem Deckenraum zwischen einer abgehängten Decke und einer Rohbaudecke verwendet werden, wobei der Luftdurchlass vorzugsweise derart auf einer Deckenplatte der abgehängten Decke positioniert ist, dass der Luftaustrittsquerschnitt des Luftdurchlasses unmittelbar an einer Oberseite der Deckenplatte angeordnet ist. Bei einer solchen Deckenplatte kann es sich insbesondere um eine perforierte Deckenplatte handeln, die entsprechend dazu geeignet ist, ein Element, das den Luftdurchlass im Bereich des Luftaustrittsquerschnitt räumlich begrenzt, zu ersetzen. Mithin kann der Luftdurchlass bevorzugt im Bereich seines Luftaustrittsquerschnitt frei von Einbauten, insbesondere von einem Lochblech oder dergleichen, ausgebildet sein.The air outlet comprises a housing, a connection piece for connection to an air distribution system, an interior space delimited by the housing and an air outlet cross-section. The air outlet can be used in particular for installation in a ceiling space between a suspended ceiling and a structural ceiling, wherein the air outlet is preferably positioned on a ceiling panel of the suspended ceiling in such a way that the air outlet cross-section of the air outlet is arranged directly on an upper side of the ceiling panel. Such a ceiling panel can in particular be a perforated ceiling panel, which is accordingly suitable for replacing an element that spatially delimits the air outlet in the region of the air outlet cross-section. The air outlet can therefore preferably be designed free of built-in components, in particular perforated sheet metal or the like, in the region of its air outlet cross-section.

Der Anschlussstutzen dient dazu, den Luftdurchlass mit einem Luftkanal zu verbinden, mittels dessen dem Luftdurchlass Zuluft zuführbar ist. Das Gehäuse des Luftdurchlasses umfasst einen Luftaustrittsbereich, dessen in Strömungsrichtung der Zuluft betrachtetes Ende von dem Luftaustrittsquerschnitt gebildet ist. Der Luftaustrittsbereich weist die Form eines Pyramidenstumpfs auf, der sich in Strömungsrichtung der Zuluft betrachtet erweitert. Der Luftaustrittsbereich ist mithin derart ausgebildet, dass Wandungen des Gehäuses in dem Luftaustrittsbereich mit einer von dem Luftaustrittsquerschnitt gebildeten Ebene einen Winkel im Bereich zwischen 5° und 20°, vorzugsweise zwischen 7° und 15°, weiter vorzugsweise zwischen 9° und 12,5°, einschließen. Der Luftaustrittsbereich ist von dem übrigen Innenraum durch einen von einer Deckfläche des pyramidenstumpfförmigen Luftaustrittsbereichs gebildeten ersten Luftdurchtrittsquerschnitt logisch getrennt. Mithin strömt die Zuluft, die dem Luftdurchlass durch den Anschlussstutzen zugeleitet wird, in den Innenraum des Gehäuses ein und verlässt den Innenraum durch den Luftaustrittsquerschnitt, wobei die Zuluft innerhalb des Innenraums ausgehend von einem Lufteintrittsbereich, in den die Zuluft unmittelbar von dem Anschlussstutzen eintritt, mittelbar oder unmittelbar durch den ersten Luftdurchtrittsquerschnitt in den Luftaustrittsbereich in Form des Pyramidenstumpfs übertritt. Von dem Luftaustrittsbereich tritt die Zuluft schließlich durch den Luftaustrittsquerschnitt aus dem Luftdurchlass aus. Eine Grundfläche des Luftaustrittsbereichs und der erste Luftdurchtrittsquerschnitt des Luftaustrittsbereichs sind jeweils rechteckig, wobei in dem Luftaustrittsbereich, das heißt räumlich zwischen dem ersten Luftdurchtrittsquerschnitt und dem Luftaustrittsquerschnitt, ein rechteckförmiges Luftleitelement angeordnet ist.The connection piece is used to connect the air outlet to an air duct, by means of which supply air can be supplied to the air outlet. The housing of the air outlet comprises an air outlet area, the end of which, viewed in the flow direction of the supply air, is formed by the air outlet cross-section. The air outlet area has the shape of a truncated pyramid, which widens when viewed in the flow direction of the supply air. The air outlet area is therefore designed in such a way that walls of the housing in the air outlet area enclose an angle in the range between 5° and 20°, preferably between 7° and 15°, more preferably between 9° and 12.5°, with a plane formed by the air outlet cross-section. The air outlet area is logically separated from the rest of the interior by a first air passage cross-section formed by a cover surface of the truncated pyramid-shaped air outlet area. The supply air, which is fed to the air outlet through the connection piece, flows into the interior of the housing and leaves the interior through the air outlet cross-section, whereby the supply air within the interior, starting from an air inlet area into which the supply air enters directly from the connection piece, passes indirectly or directly through the first air passage cross-section into the air outlet area in the form of the truncated pyramid. From the air outlet area, the supply air finally exits the air outlet through the air outlet cross-section. A base area of the The first air outlet area and the first air passage cross-section of the air outlet area are each rectangular, wherein a rectangular air guide element is arranged in the air outlet area, i.e. spatially between the first air passage cross-section and the air outlet cross-section.

Stand der TechnikState of the art

Ein Luftdurchlass der eingangs beschriebenen Art ist im Stand der Technik bereits bekannt. Hierzu wird insbesondere auf die europäische Patentanmeldung EP 2 860 467 A1 hingewiesen. Diese beschreibt einen Luftdurchlass, umfassend einen Stutzen zur Verbindung mit einem Luftzufuhrsystem und ein Gehäuse, welches einen Luftverteilraum begrenzt. Das Gehäuse weist eine Lufteintrittsfläche auf, durch die Luft in den Luftverteilraum einleitbar ist und welche mit dem Stutzen verbindbar ist, wobei das Gehäuse weiterhin eine parallel zu der Lufteintrittsfläche angeordnete Luftaustrittsfläche aufweist, durch die die Luft den Luftverteilraum verlässt. Das Gehäuse ist mit Wandungen versehen, die in einem spitzen Winkel zu der Luftaustrittsfläche angeordnet sind, wobei der Luftdurchlass Verstellmittel zur Veränderung einer Strömungsrichtung der aus der Luftaustrittsfläche austretenden Luft aufweist, die von einer ersten Stellung in eine zweite Stellung oder in umgekehrte Richtung überführbar sind. Damit offenbart die EP 2 860 467 A1 einen Luftdurchlass gemäß dem Oberbegriff von Anspruch 1.An air vent of the type described above is already known in the state of the art. Reference is made in particular to the European patent application EP 2 860 467 A1 This describes an air passage comprising a nozzle for connection to an air supply system and a housing which delimits an air distribution space. The housing has an air inlet surface through which air can be introduced into the air distribution space and which can be connected to the nozzle, wherein the housing further has an air outlet surface arranged parallel to the air inlet surface through which the air leaves the air distribution space. The housing is provided with walls which are arranged at an acute angle to the air outlet surface, wherein the air passage has adjustment means for changing a flow direction of the air exiting from the air outlet surface, which can be transferred from a first position to a second position or in the opposite direction. The EP 2 860 467 A1 an air passage according to the preamble of claim 1.

Der bekannte Luftdurchlass ist besonders gut dazu geeignet, Zuluft in deckenparalleler Weise einem Raum zuzuführen. Hierbei legt sich die Zuluft innerhalb des Luftdurchlasses an die Wandungen in dem Luftaustrittsbereich an, wodurch die Zuluft in einem spitzen Winkel bezogen auf den Luftaustrittsquerschnitt umgelenkt wird. Bei dem Austritt aus dem Luftdurchlass wird die Zuluft mithin nicht senkrecht zu der jeweiligen Deckenplatte, sondern zumindest im Wesentlichen parallel zu der Deckenplatte abgegeben, wodurch insbesondere bei der Zuführung von Kühlluft Zugerscheinungen bei den Personen, die sich in dem jeweiligen Raum aufhalten, vermieden werden. Diese Art der Beschickung eines Raums mit Zuluft hat sich für Konstruktionen, bei denen der Luftdurchlass und mithin der Luftaustrittsquerschnitt zumindest im Wesentlichen einen quadratischen Querschnitt aufweisen, als besonders vorteilhaft herausgestellt. Allerdings hat sich ebenso gezeigt, dass die Ausgestaltung eines solchen Luftdurchlasses mit einem rechteckigen Querschnitt, dessen Länge dessen Breite deutlich übersteigt, problematisch ist, da die Ablenkung der Zuluft in eine deckenparallele Richtung nicht zuverlässig erreicht wird.The known air outlet is particularly well suited to supplying fresh air to a room in a manner parallel to the ceiling. The fresh air within the air outlet is applied to the walls in the air outlet area, whereby the fresh air is deflected at an acute angle in relation to the air outlet cross-section. When exiting the air outlet, the fresh air is therefore not discharged perpendicular to the respective ceiling panel, but at least essentially parallel to the ceiling panel, which avoids drafts for people in the respective room, particularly when supplying cooling air. This type of supplying a room with fresh air has proven to be particularly advantageous for constructions in which the air outlet and therefore the air outlet cross-section have at least essentially a square cross-section. However, it has also been shown that the design of such an air outlet with a rectangular cross-section, the length of which significantly exceeds its width, is problematic, since the deflection of the fresh air in a direction parallel to the ceiling cannot be reliably achieved.

AufgabeTask

Der vorliegenden Anmeldung liegt mithin die Aufgabe zugrunde, einen Luftdurchlass hervorzubringen, mittels dessen eine deckenparallele Abströmung der Zuluft bei einer rechteckigen Form des Luftaustrittsquerschnitts erreicht wird.The present application is therefore based on the object of producing an air outlet by means of which a ceiling-parallel outflow of the supply air is achieved with a rectangular shape of the air outlet cross-section.

LösungSolution

Die zugrunde liegende Aufgabe wird erfindungsgemäß mittels eines Luftdurchlasses mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen ergeben sich aus den zugehörigen Unteransprüchen.The underlying object is achieved according to the invention by means of an air passage with the features of claim 1. Advantageous embodiments emerge from the associated subclaims.

Der Luftdurchlass ist unter anderem dadurch gekennzeichnet, dass das Luftleitelement plattenförmig ausgebildet ist und parallel zu der von dem Luftaustrittsquerschnitt definierten Ebene orientiert ist. Das Luftleitelement weist eine Vielzahl von Perforation auf, durch die hindurch die Zuluft strömen kann. Die Perforationen bilden hierdurch gemeinsam einen zweiten Luftdurchtrittsquerschnitt. Das Luftleitelement ist derart innerhalb des Luftaustrittsbereichs angeordnet, dass umlaufend um das Luftleitelement herum ein sich zwischen einem äußeren Rand des Luftleitelements und den Wandungen des Gehäuses erstreckender Freiraum vorliegt. Dieser Freiraum bildet einen dritten Luftdurchtrittsquerschnitt, den die Zuluft im Zuge der Durchströmung des Luftaustrittsbereichs strömen kann. Das Luftleitelement unterteilt demzufolge den Luftaustrittsbereich logisch in einen Anfangsabschnitt, in den die Zuluft ausgehend von dem Lufteintrittsbereich durch den ersten Luftdurchtrittsquerschnitt unmittelbar übertritt, und einen Endabschnitt, von dem ausgehend die Zuluft unmittelbar durch den Luftaustrittsquerschnitt aus dem Luftdurchlass ausströmt. Die Zuluft kann von dem Anfangsabschnitt sowohl durch das Luftleitelement als auch durch den Freiraum in den Endabschnitt überströmen.The air outlet is characterized, among other things, in that the air guide element is plate-shaped and is oriented parallel to the plane defined by the air outlet cross-section. The air guide element has a plurality of perforations through which the supply air can flow. The perforations together form a second air passage cross-section. The air guide element is arranged within the air outlet area in such a way that there is a free space extending all around the air guide element between an outer edge of the air guide element and the walls of the housing. This free space forms a third air passage cross-section through which the supply air can flow as it flows through the air outlet area. The air guide element therefore logically divides the air outlet area into an initial section, into which the supply air passes directly from the air inlet area through the first air passage cross-section, and an end section, from which the supply air flows directly out of the air outlet through the air outlet cross-section. The supply air can flow from the initial section through the air guide element as well as through the free space into the end section.

Das Luftleitelement ist plattenförmig, was gemäß der vorliegenden Anmeldung als zweidimensionales Bauteil anzusehen ist, dessen Länge und Breite jeweils die Dicke der Platte um ein Vielfaches überschreitet. Insbesondere überschreitet die Länge und Breite der Platte die Dicke derselben um mehr als das 100-Fache. Bei einem rechteckigen Querschnitt des Luftleitelements kann die Länge der Platte deren Dicke um mehr als das 200-Fache oder mehr als das 400-Fache übersteigen. Es wird deutlich, dass das Luftleitelement ein dünnes, ebenes Bauteil ist, wobei die Zuluft auf das Luftleitelement trifft. Das Luftleitelement kann beispielsweise aus einem Lochblech, einem Siebdruckgewebe, einem Gewebe oder ähnlichem bestehen oder dieses aufweisen. Kombinationen sind ebenfalls denkbar. Vorteil der Anordnung eines Gewebes ist die Reduzierung von Strömungsgeräuschen.The air guide element is plate-shaped, which according to the present application is to be regarded as a two-dimensional component whose length and width each exceed the thickness of the plate by a multiple. In particular, the length and width of the plate exceed the thickness of the plate by more than 100 times. With a rectangular cross-section of the air guide element, the length of the plate can exceed its thickness by more than 200 times or more than 400 times. It is clear that the air guide element is a thin, flat component, with the supply air hitting the air guide element. The air guide element can consist of or have a perforated sheet, a screen-printed fabric, a fabric or the like, for example. Combinations are also conceivable. The advantage of arranging a fabric is the reduction of flow noise.

Im Zuge eines Betriebs des Luftdurchlasses tritt die Zuluft demzufolge zunächst durch den Anschlussstutzen in einen Lufteintrittsbereich des Innenraums des Gehäuses ein. Innerhalb des Gehäuses strömt die Zuluft daraufhin durch den ersten Luftdurchtrittsquerschnitt in den Anfangsabschnitt des Luftaustrittsbereichs über. Innerhalb des Luftaustrittsbereichs, nämlich zwischen dem ersten Luftdurchtrittsquerschnitt und dem Luftaustrittsquerschnitt, ist das Luftleitelement angeordnet, das den Luftaustrittsbereich logisch in den Anfangsabschnitt und den Endabschnitt unterteilt. Das Luftleitelement bildet mit seinen Perforationen den zweiten Luftdurchtrittsquerschnitt. Die Zuluft kann mithin in Teilen durch die Perforationen bzw. durch den zweiten Luftdurchtrittsquerschnitt von dem Anfangsabschnitt in den Endabschnitt des Luftaustrittsbereichs überströmen und in anderen Teilen - in Umgehung des Luftleitelements - durch den von dem Freiraum gebildeten dritten Luftdurchtrittsquerschnitt strömen. In jedem Fall gelangt sämtliche Zuluft in den Endabschnitt des Luftaustrittsbereichs, von dem ausgehend sie durch den Luftaustrittsquerschnitt aus dem Luftdurchlass austritt. Bei dem dritten Luftdurchtrittsquerschnitt handelt es sich nicht um einen baulich bedingten Freiraum geringen Ausmaßes, sondern um einen bewusst vorgesehenen Freiraum mit entsprechend gewählten Dimensionen. Beispielsweise kann der Freiraum umlaufend eine Breite aufweisen, die zwischen 1 cm und 4 cm beträgt.When the air outlet is in operation, the supply air initially enters an air inlet area of the interior of the housing through the connection piece. Inside the housing, the supply air then flows through the first air passage cross-section into the initial section of the air outlet area. Inside the air outlet area, namely between the first air passage cross-section and the air outlet cross-section, the air guide element is arranged, which logically divides the air outlet area into the initial section and the final section. The air guide element forms the second air passage cross-section with its perforations. The supply air can therefore flow in parts through the perforations or through the second air passage cross-section from the initial section into the final section of the air outlet area and in other parts - bypassing the air guide element - through the third air passage cross-section formed by the free space. In any case, all the supply air reaches the end section of the air outlet area, from where it exits the air passage through the air outlet cross-section. The third air passage cross-section is not a small, structurally determined free space, but a deliberately provided free space with appropriately selected dimensions. For example, the free space can have a width all around that is between 1 cm and 4 cm.

Der erfindungsgemäße Luftdurchlass hat viele Vorteile. Insbesondere weist der Luftdurchlass eine rechteckige Grundform auf, aufgrund der er sich besonders zum Einsatz an bzw. auf schmalen Decken eignet. Die gleichmäßige Verteilung der Zuluft sowohl zu Schmalseiten des Luftaustrittsquerschnitts als auch zu Längsseiten des Luftaustrittsquerschnitts wird mittels des Luftleitelements erreicht, das in einem Mittelbereich des Luftaustrittsbereichs eine Drosselwirkung entfaltet, da ein Strömungswiderstand, der der Zuluft infolge des Luftleitelements entgegensteht, größer ist als in dem randseitig umlaufenden Freiraum, der sich zwischen dem Rand des Luftleitelements und der Wandung des Gehäuses erstreckt. Mithin bewirkt das Luftleitelement, dass ein Großteil eines Zuluftvolumenstroms im Zuge der Durchströmung des Luftaustrittsbereichs durch den Freiraum bzw. den dritten Luftdurchtrittsquerschnitt von dem Anfangsabschnitt in den Endabschnitt des Luftaustrittsbereichs übertritt und lediglich ein kleinerer Teil der Strömung durch die Perforationen bzw. den zweiten Luftdurchtrittsquerschnitt in den Endabschnitt übertritt. Da der Freiraum den spitz geneigten Wandungen des Gehäuses, die die pyramidenstumpfförmige Gestalt des Luftaustrittsbereichs ausmachen, zugeordnet ist, wird entsprechend erreicht, dass die Zuluft innerhalb des Luftaustrittsbereichs gezielt den Wandungen zugeleitet wird und sich daraufhin an die Wandungen angelegt. Dies führt wiederum im Zuge des Austritts der Zuluft aus dem Luftdurchlass, der durch den Luftaustrittsquerschnitt erfolgt, zu einem besonders guten "anschmiegen" der Zuluft an die jeweilige Deckenplatte, auf die der Luftdurchlass aufgesetzt ist. Im Ergebnis ist folglich die gewünschte deckenparallele Abströmung der Zuluft erreicht, die zwecks Vermeidung von Zugerscheinungen insbesondere bei gekühlter Zuluft gewünscht ist.The air outlet according to the invention has many advantages. In particular, the air outlet has a rectangular basic shape, which makes it particularly suitable for use on or in narrow ceilings. The even distribution of the supply air both to the narrow sides of the air outlet cross-section and to the long sides of the air outlet cross-section is achieved by means of the air guide element, which has a throttling effect in a central area of the air outlet area, since a flow resistance that opposes the supply air due to the air guide element is greater than in the free space around the edge, which extends between the edge of the air guide element and the wall of the housing. The air guide element therefore causes a large part of a supply air volume flow to pass from the initial section to the end section of the air outlet area as it flows through the free space or the third air passage cross-section, and only a smaller part of the flow passes through the perforations or the second air passage cross-section to the end section. Since the free space is assigned to the pointed walls of the housing, which make up the truncated pyramid shape of the air outlet area, it is achieved that the supply air is directed to the walls within the air outlet area and then clings to the walls. This in turn leads to a particularly good "snuggling" of the supply air to the respective ceiling panel on which the air outlet is placed. As a result, the desired flow of supply air parallel to the ceiling is achieved, which is desirable in order to avoid draughts, especially with cooled supply air.

Der zweite Luftdurchtrittsquerschnitt, der von der Summe aller Perforationen des Luftleitelements gebildet ist, hat den Effekt, dass die Zuluft - obschon sie primär durch den dritten Luftdurchtrittsquerschnitt von dem Anfangsabschnitt in den Endabschnitt des Luftaustrittsbereichs übertreten soll - sich nicht an dem Luftleitelement staut und vollständig seitlich zu dem Freiraum hin abgeleitet werden muss. Es hat sich gezeigt, dass eine Strömungscharakteristik bei einer solchen Ausgestaltung nachteilig ist, sodass die Perforationen des Luftleitelements für die gezielte Abströmung der Zuluft in deckenparalleler Richtung bezogen auf die jeweilige Deckenplatte bedeutsam sind.The second air passage cross-section, which is formed by the sum of all perforations of the air guide element, has the effect that the supply air - although it is primarily intended to pass through the third air passage cross-section from the initial section to the final section of the air outlet area - does not accumulate on the air guide element and must be completely diverted laterally to the free space. It has been shown that a flow characteristic with such a design is disadvantageous, so the perforations of the air guide element are important for the targeted outflow of the supply air in a direction parallel to the ceiling in relation to the respective ceiling panel.

Erfindungsgemäß wird das Luftleitelement des Luftdurchlasses von einer Platte, vorzugsweise aus Metall oder Kunststoff, gebildet, insbesondere von einem Lochblech. Dabei ist erfindungsgemäß vorgesehen, dass ein Anteil einer den zweiten Luftdurchtrittsquerschnitt definierenden freien Fläche, d.h. die Summe aller Flächen der Perforationen, bezogen auf eine Gesamtfläche des Luftleitelements, zwischen 5 % und 20 %, vorzugsweise zwischen 7 % und 15 %, beträgt. Erfindungsgemäß ist weiter vorgesehen, dass ein Großteil eines Zuluftstroms im Zuge der Durchströmung des Luftaustrittsbereichs durch den dritten Luftdurchtrittsquerschnitt führbar ist.According to the invention, the air guide element of the air passage is formed by a plate, preferably made of metal or plastic, in particular by a perforated sheet. According to the invention, a proportion of a free area defining the second air passage cross-section, i.e. the sum of all areas of the perforations, based on a total area of the air guide element, is between 5% and 20%, preferably between 7% and 15%. According to the invention, it is further provided that a large part of a supply air flow can be guided through the third air passage cross-section as it flows through the air outlet area.

In einer vorteilhaften Ausgestaltung beträgt eine Dicke des Luftleitelements zwischen 0,25 mm und 2,0 mm, vorzugsweise zwischen 0,5 mm und 1,5 mm. Diese Ausgestaltung hat sich als besonders vorteilhaft herausgestellt, da das Luftleitelement zwar die gewünschte lokale Drosselfunktion übernimmt, die zu einer Ableitung eines wesentlichen Teils der Zuluft zu dem dritten Luftdurchtrittsquerschnitt bewirkt. Allerdings wirken die Perforationen hierbei wunschgemäß kaum prägend für eine Strömungsrichtung des Anteils der Zuluft, der durch den zweiten Luftdurchtrittsquerschnitt in den Endabschnitt des Luftaustrittsbereichs übertritt.In an advantageous embodiment, the thickness of the air guide element is between 0.25 mm and 2.0 mm, preferably between 0.5 mm and 1.5 mm. This embodiment has proven to be particularly advantageous because the air guide element takes on the desired local throttling function, which leads to a significant portion of the supply air being diverted to the third air passage cross-section. However, as desired, the perforations have little influence on the flow direction of the portion of the supply air that passes through the second air passage cross-section into the end section of the air outlet area.

Den erfindungsgemäßen Luftdurchlass weiter ausgestaltend ist das Luftleitelement an dem Gehäuse befestigt. Dies kann insbesondere mittels einzelner Laschen erfolgen, die beispielsweise an Ecken des Luftleitelements angeschlossen sind. Insbesondere kann das Luftleitelement derart an dem Gehäuse befestigt sein, dass es - mit Ausnahme jeweiliger Befestigungselemente - innerhalb des Luftaustrittsbereichs frei hängt, sodass der randseitig umlaufende Freiraum zumindest im Wesentlichen frei als Luftdurchtrittsquerschnitt für die Zuluft zur Verfügung steht. Der Zuluft stellt sich mithin im Bereich des Freiraums bzw. des dritten Luftdurchtrittsquerschnitts kein Hindernis entgegen, das die Strömung der Zuluft behindern würde.In order to further develop the air passage according to the invention, the air guide element is attached to the housing. This can be done in particular by means of individual tabs that are connected, for example, to corners of the air guide element. In particular, the air guide element can be attached to the housing in such a way that - with the exception of the respective fastening elements - it hangs freely within the air outlet area, so that the free space surrounding the edge is at least essentially freely available as an air passage cross-section for the supply air. The supply air is therefore not faced with any obstacle in the area of the free space or the third air passage cross-section that would impede the flow of the supply air.

In einer besonders vorteilhaften Ausgestaltung weist eine Schmalseite des Freiraums, die einen minimalen Abstand von einer jeweiligen Stelle des Randes des Luftleitelements zu der Wandung des Gehäuses beschreibt, eine Länge auf, die zwischen 3 % und 8 %, vorzugsweise zwischen 4 % und 7 % einer Breite der Grundfläche des Luftaustrittsbereichs entspricht. Die Schmalseite ist als engste Stelle des Querschnitts des Freiraums definiert, der den dritten Luftdurchtrittsquerschnitt definiert. Bei einer Ausgestaltung der Schmalseite mit einer Länge in dem genannten Bereich hat sich die Verteilung der Zuluft hin zu den spitz geneigten Wandungen des Gehäuses als besonders vorteilhaft herausgestellt.In a particularly advantageous embodiment, a narrow side of the free space, which describes a minimum distance from a respective point on the edge of the air guide element to the wall of the housing, has a length that corresponds to between 3% and 8%, preferably between 4% and 7% of a width of the base area of the air outlet area. The narrow side is defined as the narrowest point of the cross section of the free space, which defines the third air passage cross section. When the narrow side is designed with a length in the range mentioned, the distribution of the supply air towards the pointedly inclined walls of the housing has proven to be particularly advantageous.

Weiterhin kann eine solche Ausgestaltung des Luftdurchlasses vorteilhaft sein, bei der ein Verhältnis einer Länge des Luftaustrittsbereichs zu einer Breite des Luftaustrittsbereichs zwischen 1,5:1 und 5:1, vorzugsweise zwischen 2:1 und 4:1, liegt.Furthermore, such a design of the air outlet can be advantageous in which a ratio of a length of the air outlet area to a width of the air outlet area is between 1.5:1 and 5:1, preferably between 2:1 and 4:1.

Weiterhin kann eine solche Ausgestaltung des erfindungsgemäßen Luftdurchlasses besonders von Vorteil sein, bei der das Luftleitelement bezogen auf eine Hochachse des Luftaustrittsbereichs in einer unteren Hälfte, vorzugsweise in einem zweiten Viertel (betrachtet von der Grundfläche des Luftaustrittsbereichs aus), des Luftaustrittsbereichs angeordnet ist. In Versuchen hat sich gezeigt, dass diese Anordnung für die Abströmung der Zuluft in den jeweiligen Raum durch eine jeweilige Deckenplatte hindurch besonders vorteilhaft ist.Furthermore, such a design of the air outlet according to the invention can be particularly advantageous in which the air guide element is arranged in a lower half, preferably in a second quarter (viewed from the base area of the air outlet area) of the air outlet area in relation to a vertical axis of the air outlet area. Tests have shown that this arrangement is particularly advantageous for the outflow of the supply air into the respective room through a respective ceiling panel.

In einer weiterhin vorteilhaften Ausgestaltung verfügt der Luftdurchlass zwischen dem Lufteintrittsbereich und dem Luftaustrittsbereich über einen Übergangsbereich, der vorzugsweise zumindest im Wesentlichen quaderförmig ausgebildet ist. Der erste Luftdurchtrittsquerschnitt, der von der Deckfläche des pyramidenstumpfförmigen Luftaustrittsbereichs gebildet ist, bildet bei dieser Ausgestaltung den Grenzquerschnitt zwischen dem Übergangsbereich und dem Luftaustrittsbereich. In bevorzugter Weise sind Wandungen des Gehäuses des Luftdurchlasses, die den Übergangsbereich seitlich begrenzen, leicht gegenüber einer Vertikalen geneigt, vorzugsweise in einem Bereich zwischen 1° und 8°, weiter vorzugsweise zwischen 2° und 6°. Mithin sind auch Ausgestaltungen des Übergangsbereichs, bei denen die Wandungen in der beschriebenen Weise geneigt sind, als "im Wesentlichen quaderförmig" im Sinne der vorliegenden Anmeldung zu verstehen. Das Vorsehen eines Übergangsbereichs hat sich als vorteilhaft für die Vergleichmäßigung der Strömung der Zuluft vor dem Eintritt in den Luftaustrittsbereich herausgestellt.In a further advantageous embodiment, the air passage between the air inlet area and the air outlet area has a transition area, which is preferably at least essentially cuboid-shaped. The first air passage cross-section, which is formed by the cover surface of the truncated pyramid-shaped air outlet area, forms the boundary cross-section between the transition area and the air outlet area in this embodiment. Walls of the housing of the air passage, which laterally delimit the transition area, are preferably slightly inclined relative to a vertical, preferably in a range between 1° and 8°, more preferably between 2° and 6°. Thus, designs of the transition area in which the walls are inclined in the manner described are also to be understood as "essentially cuboid-shaped" in the sense of the present application. The provision of a transition area has proven to be advantageous for equalizing the flow of the supply air before entering the air outlet area.

Ferner sieht eine vorteilhafte Ausgestaltung der Erfindung vor, dass das Luftleitelement innerhalb des Luftaustrittsbereichs angeordnet ist und der Luftaustrittsbereich demzufolge mittels des Luftleitelements logisch in einen oberhalb des Luftleitelements befindlichen Anfangsabschnitt und einen unterhalb des Luftleitelements befindlichen Endabschnitt logisch unterteilt ist. Entsprechend befindet sich die Zuluft, sobald sie durch den ersten Luftdurchtrittsquerschnitt in den Luftaustrittsbereich übergetreten ist, zunächst in dem Anfangsabschnitt des Luftaustrittsbereichs, von dem ausgehend die Zuluft sowohl durch den zweiten Luftdurchtrittsquerschnitt als auch durch den dritten Luftdurchtrittsquerschnitt in den Endabschnitt des Luftaustrittsbereichs übertreten kann. Durch diese Anordnung des Luftleitelements tritt die Luft seitlich horizontal und unter dem Luftleitelement aufgeteilt aus. Durch die Tatsache, dass das Luftleitelement luftdurchlässig oder "porös" ist, bleibt die Unterseite einer perforierten Deckenplatte, auf der der Luftdurchlass angeordnet ist, frei von luftgetragenen Staub- und Schmutzpartikeln.Furthermore, an advantageous embodiment of the invention provides that the air guide element is arranged within the air outlet area and the air outlet area is therefore logically divided by means of the air guide element into an initial section located above the air guide element and an end section located below the air guide element. Accordingly, as soon as the supply air has passed through the first air passage cross section into the air outlet area, it is initially in the initial section of the air outlet area, from which the supply air can pass through both the second air passage cross section and the third air passage cross section into the end section of the air outlet area. Due to this arrangement of the air guide element, the air exits laterally horizontally and divided under the air guide element. Due to the fact that the air guide element is permeable to air or "porous", the underside of a perforated ceiling panel on which the air outlet is arranged remains free of airborne dust and dirt particles.

Schließlich ist es gemäß einer besonders vorteilhaften Weiterbildung des erfindungsgemäßen Luftdurchlasses vorgesehen, dass ein Verhältnis aus der Querschnittsfläche des Luftaustrittsquerschnitts bezogen auf die Querschnittsfläche des Anschlussstutzens in einem Bereich von 2 bis 7, vorzugsweise in einem Bereich von 3 bis 6, liegt. Bei einem derartigen Querschnittsverhältnis ist eine besonders gute Durchströmung des Luftdurchlasses gegeben, wobei zum einen genügend Zuluft bereitgestellt wird und zum anderen eine optimale Strömungsgeschwindigkeit und Abströmrichtung erzielt wird. In Bezug auf die Anordnung des Anschlussstutzens ist es ferner von Vorteil, wenn eine Mittelachse des Anschlussstutzens orthogonal zu einer Hochachse des Luftdurchlasses verläuft. Dies ist insbesondere im Hinblick auf den reduzierten Platzbedarf beim Einbau in ein Deckensystem vorteilhaft.Finally, according to a particularly advantageous development of the air outlet according to the invention, it is provided that a ratio of the cross-sectional area of the air outlet cross-section in relation to the cross-sectional area of the connection piece is in a range of 2 to 7, preferably in a range of 3 to 6. With such a cross-sectional ratio, a particularly good flow through the air outlet is provided, whereby on the one hand sufficient supply air is provided and on the other hand an optimal flow speed and outflow direction are achieved. With regard to the arrangement of the connection piece, it is also advantageous if a central axis of the connection piece runs orthogonal to a vertical axis of the air outlet. This is particularly advantageous with regard to the reduced space requirement when installing in a ceiling system.

Ausführungsbeispieleimplementation examples

Die Erfindung ist nachstehend anhand eines Ausführungsbeispiels, das in den Figuren dargestellt ist, näher erläutert. Es zeigt:

Fig. 1:
Eine perspektivische Ansicht eines Luftdurchlasses,
Fig. 2:
Eine weitere perspektivische Ansicht des Luftdurchlasses gemäß Figur 1,
Fig. 3:
Eine Draufsicht auf den Luftdurchlass gemäß Figur 1,
Fig. 4:
Eine Seitenansicht des Luftdurchlasses gemäß Figur 1,
Fig. 5:
Ein Detail im Bereich eines Luftaustrittsbereichs eines Gehäuses des Luftdurchlasses gemäß Figur 1,
Fig. 6:
Ein Querschnitt durch den Luftdurchlass gemäß Figur 1,
Fig. 7:
Ein weiteres Detail im Bereich des Luftaustrittsbereichs gemäß Figur 5.
The invention is explained in more detail below using an embodiment shown in the figures. It shows:
Fig. 1:
A perspective view of an air vent,
Fig. 2:
Another perspective view of the air outlet according to Figure 1 ,
Fig. 3:
A top view of the air passage according to Figure 1 ,
Fig. 4:
A side view of the air outlet according to Figure 1 ,
Fig. 5:
A detail in the area of an air outlet area of a housing of the air outlet according to Figure 1 ,
Fig. 6:
A cross-section through the air passage according to Figure 1 ,
Fig. 7:
Another detail in the area of the air outlet area according to Figure 5 .

Ein Ausführungsbeispiel, das in den Figuren 1 bis 7 gezeigt ist, umfasst einen Luftdurchlass 1, der ein Gehäuse 2 umfasst, das einen Innenraum 4 räumlich einfasst. Der Luftdurchlass 1 weist eine grundsätzlich rechteckige Form auf, wie sich nachstehend ergibt. Zum Anschluss an ein in den Figuren nicht dargestelltes Luftverteilsystem umfasst der Luftdurchlass 1 einen Anschlussstutzen 3, der in einen Anschlusskasten 24 mündet. Dies ist besonders gut anhand der Figuren 1 und 2 erkennbar. Mittels des Luftverteilsystems dem Luftdurchlass 1 zugeführte Zuluft kann auf diese Weise durch den Anschlussstutzen 3 in einen Lufteintrittsbereich 26 des Innenraums 4 eintreten. Der Lufteintrittsbereich 26 ist in dem gezeigten Beispiel von einem Innenraum des Anschlusskastens 24 gebildet.An example of implementation that can be found in the Figures 1 to 7 shown comprises an air passage 1 which comprises a housing 2 which spatially encloses an interior space 4. The air passage 1 has a basically rectangular shape, as shown below. For connection to an air distribution system not shown in the figures, the air passage 1 comprises a connection piece 3 which opens into a connection box 24. This is particularly clear from the Figures 1 and 2 recognizable. Supply air supplied to the air outlet 1 by means of the air distribution system can thus enter an air inlet area 26 of the interior 4 through the connection piece 3. The air inlet area 26 is formed in the example shown by an interior of the connection box 24 .

Ausgehend von dem Lufteintrittsbereich 26 strömt die Zuluft in einen Übergangsbereich 25 und schließlich einen Luftaustrittsbereich 6 über, der pyramidenstumpfförmig ausgebildet ist. Dies äußert sich dadurch, dass Wandungen 7 des Gehäuses 2 in dem Luftaustrittsbereichs 6 unter einem spitzen Winkel 21, der hier ca. 10° beträgt, bezogen auf eine Ebene 8, die von einer Grundfläche 10 des Luftaustrittsbereichs 6 gebildet ist, geneigt verlaufen. Ausgehend von dem Luftaustrittsbereich 6 tritt die Zuluft durch einen Luftaustrittsquerschnitt 5 aus dem Luftdurchlass 1 aus. Der Luftaustrittsquerschnitt 5 ist durch die Grundfläche 10 des Luftaustrittsbereichs 6 definiert, wie sich besonders gut anhand der Figuren 4 und 6 ergibt.Starting from the air inlet area 26 , the supply air flows into a transition area 25 and finally into an air outlet area 6 , which is shaped like a truncated pyramid. This is expressed by the fact that walls 7 of the housing 2 in the air outlet area 6 are inclined at an acute angle 21, which is approximately 10° here, relative to a plane 8, which is formed by a base area 10 of the air outlet area 6. Starting from the air outlet area 6 , the supply air exits the air passage 1 through an air outlet cross-section 5. The air outlet cross-section 5 is defined by the base area 10 of the air outlet area 6 , as can be seen particularly well from the Figures 4 and 6 results.

Die Grundfläche 10 ist rechteckig ausgebildet und weist hier eine Länge 17 von ca. 60 cm und eine Breite 18 von ca. 30 cm auf. Das Verhältnis der Länge 17 zu der Breite 18 beträgt hier mithin 2:1. Dies ergibt sich besonders gut anhand von Figur 3 . The base area 10 is rectangular and has a length 17 of approximately 60 cm and a width 18 of approximately 30 cm. The ratio of the length 17 to the width 18 is therefore 2:1. This is particularly evident from Figure 3 .

Zwischen dem pyramidenstumpfförmigen Luftaustrittsbereich 6 und dem Anschlusskasten 24 umfasst der vorliegende Luftdurchlass 1 einen Übergangsbereich 25, der im Wesentlichen quaderförmig ausgebildet ist. Der Übergangsbereich 25 hat einen gegenüber dem Anschlusskasten 24 aufgeweiteten Querschnitt, wobei die Wandungen 7 des Gehäuses 2 in dem Übergangsbereich 25 nahezu vertikal orientiert sind. In dem gezeigten Beispiel schließen die Wandungen 7 in dem Übergangsbereich 25 mit der Vertikalen einen Winkel von ca. 3° ein. Dies ergibt sich besonders gut anhand der Figuren 5 und 7 . Between the truncated pyramid-shaped air outlet area 6 and the connection box 24 , the present air passage 1 comprises a transition area 25 which is essentially cuboid-shaped. The transition area 25 has a wider cross-section than the connection box 24 , with the walls 7 of the housing 2 in the transition area 25 being oriented almost vertically. In the example shown, the walls 7 in the transition area 25 form an angle of approximately 3° with the vertical. This is particularly evident from the Figures 5 and 7 .

Nach alldem strömt die Zuluft ausgehend von dem nicht dargestellten Luftverteilsystem durch den Anschlussstutzen 3 in den Lufteintrittsbereich 26 ein und tritt von dort in den Übergangsbereich 25 über. Ausgehend von dem Übergangsbereich 25 tritt die Zuluft sodann durch einen ersten Luftdurchtrittsquerschnitt 9 in den Luftaustrittsbereich 6 über. Der erste Luftdurchtrittsquerschnitt 9 ist demgemäß von einer Deckfläche des pyramidenstumpfförmigen Luftaustrittsbereichs 6 gebildet. Dies ergibt sich besonders gut anhand der Schnittdarstellungen gemäß den Figuren 5 und 7 . After all this, the supply air flows from the air distribution system (not shown) through the connection piece 3 into the air inlet area 26 and exits from there into the transition area 25. Starting from the transition area 25 , the supply air then passes through a first air passage cross-section 9 into the air outlet area 6. The first air passage cross-section 9 is accordingly formed by a cover surface of the truncated pyramid-shaped air outlet area 6. This is particularly clear from the sectional views according to the Figures 5 and 7 .

Erfindungsgemäß ist innerhalb des Luftaustrittsbereichs 6, d.h. zwischen dem ersten Luftdurchtrittsquerschnitt 9 und dem Luftaustrittsquerschnitt 5, ein Luftleitelement 11 angeordnet, das hier mittels Laschen 22 an dem Gehäuse 2 befestigt ist. Das Luftleitelement 11 ist plattenförmig ausgebildet und ist hier von einem Lochblech gebildet, das parallel zu der Grundfläche 10 bzw. dem Luftaustrittsquerschnitt 5 orientiert ist. Als solches weist es eine Vielzahl von Perforationen 12 auf, die gemeinsam einen zweiten Luftdurchtrittsquerschnitt 13 definieren. Das Luftleitelement 11, das hier eine Dicke von ca. 1,0 mm aufweist, ist derart innerhalb des Luftaustrittsbereichs 6 angeordnet, dass es randseitig nicht an die Wandungen 7 des Gehäuses 2 anschließt. Stattdessen erstreckt sich randseitig umlaufend zwischen einem Rand 20 des Luftleitelements 11 und den Wandungen 7 ein Freiraum 14, durch den ebenfalls Zuluft strömen kann. Der Freiraum 14 definiert mithin einen dritten Luftdurchtrittsquerschnitt 15. Der Luftaustrittsbereich 6 ist demzufolge mittels des Luftleitelements 11 logisch in einen oberhalb des Luftleitelements 11 befindlichen Anfangsabschnitt 27 und einen unterhalb des Luftleitelements 11 befindlichen Endabschnitt 28 logisch unterteilt. Entsprechend befindet sich die Zuluft, sobald sie durch den ersten Luftdurchtrittsquerschnitt 9 in den Luftaustrittsbereich 6 übergetreten ist, zunächst in dem Anfangsabschnitt 27 des Luftaustrittsbereichs 6, von dem ausgehend die Zuluft sowohl durch den zweiten Luftdurchtrittsquerschnitt 13 als auch durch den dritten Luftdurchtrittsquerschnitt 15 in den Endabschnitt 28 des Luftaustrittsbereichs 6 übertreten kann. Ausgehend von dem Endabschnitt 28 tritt die Zuluft durch den Luftaustrittsquerschnitt 5 aus dem Luftaustrittsbereich 6 und mithin aus dem Luftdurchlass 1 aus.According to the invention, an air guide element 11 is arranged within the air outlet area 6, i.e. between the first air passage cross-section 9 and the air outlet cross-section 5 , which is here attached to the housing 2 by means of tabs 22. The air guide element 11 is plate-shaped and is formed here by a perforated sheet that is oriented parallel to the base area 10 or the air outlet cross-section 5. As such, it has a plurality of perforations 12 that together define a second air passage cross-section 13. The air guide element 11, which here has a thickness of approximately 1.0 mm, is arranged within the air outlet area 6 in such a way that it does not adjoin the walls 7 of the housing 2 at the edge. Instead, a free space 14 extends all the way around the edge between an edge 20 of the air guide element 11 and the walls 7 , through which supply air can also flow. The free space 14 therefore defines a third air passage cross-section 15. The air outlet area 6 is therefore logically divided by means of the air guide element 11 into an initial section 27 located above the air guide element 11 and an end section 28 located below the air guide element 11. Accordingly, as soon as the supply air has passed through the first air passage cross-section 9 into the air outlet area 6 , it is initially in the initial section 27 of the air outlet area 6, from which the supply air can pass through both the second air passage cross-section 13 and the third air passage cross-section 15 into the end section 28 of the air outlet area 6. Starting from the end section 28 , the supply air exits through the air outlet cross-section 5 from the air outlet area 6 and thus from the air passage 1.

Das Luftleitelement 11, das hier bezogen auf eine Hochachse 19 des Luftaustrittsbereichs 6 in einer unteren Hälfte des Luftaustrittsbereichs 6, nämlich auf ca. 40 % bezogen auf eine Höhe des Luftaustrittsbereichs 6, angeordnet ist, hat den Effekt, der Zuluft als Strömungswiderstand entgegenzustehen, wodurch die Zuluft anteilig zu den Rändern 20 des Luftleitelements 11 und mithin zu dem Freiraum 14 bzw. dem dritten Luftdurchtrittsquerschnitt 15 abgelenkt wird. Folglich tritt ein Großteil der Zuluft von dem Anfangsabschnitt 27 in den Endabschnitt 28 durch den dritten Luftdurchtrittsquerschnitt 15 über, während lediglich ein kleinerer Teil der Zuluft durch den zweiten Luftdurchtrittsquerschnitt 13 strömt. Auf diese Weise wird die Zuluft vorsätzlich den spitz zulaufenden Wandungen 7 des Luftaustrittsbereichs 6 zugeleitet, wodurch der Zuluft eine nahezu parallel zu dem Luftaustrittsquerschnitt 5 orientierte Strömungsrichtung aufgeprägt wird. Entsprechend wird hierdurch erreicht, dass die Zuluft bei ihrem Austritt aus dem Luftdurchlass 1 zumindest im Wesentlichen in eine deckenparallele Richtung strömt.The air guide element 11, which is arranged here in a lower half of the air outlet area 6 relative to a vertical axis 19 of the air outlet area 6, namely at approximately 40% relative to a height of the air outlet area 6, has the effect of opposing the supply air as a flow resistance, whereby the supply air is diverted proportionately to the edges 20 of the air guide element 11 and thus to the free space 14 or the third air passage cross section 15. Consequently, a large part of the supply air passes from the initial section 27 into the end section 28 through the third air passage cross section 15 , while only a smaller part of the supply air flows through the second air passage cross section 13. In this way, the supply air is deliberately directed towards the pointed tapered walls 7 of the air outlet area 6 , whereby the supply air is given a flow direction that is oriented almost parallel to the air outlet cross-section 5. Accordingly, this ensures that the supply air flows at least essentially in a direction parallel to the ceiling when it exits the air outlet 1.

In dem gezeigten Beispiel sind die Perforationen 12 des Luftleitelements 11 jeweils kreisförmig ausgebildet, wobei ein Anteil des durch die Perforationen 12 gebildeten zweiten Luftdurchtrittsquerschnitt 13 an einer Gesamtfläche des Luftleitelements hier ca. 10 % beträgt. Ferner ist das Luftleitelement 11 derart auf das Gehäuse 2 abgestimmt, dass eine Schmalseite 16 des Freiraums 14 eine Länge 23 von ca. 15 mm aufweist. Die Schmalseite 16 erstreckt sich hierbei definitionsgemäß zwischen einer jeweiligen Stelle des Randes 20 des Luftleitelements 11 und einer nächstgelegenen Stelle einer jeweiligen Wandung 7 des Gehäuses 2. Dies ergibt sich besonders gut anhand von Figur 5 . In the example shown, the perforations 12 of the air guide element 11 are each circular, with the proportion of the second air passage cross-section 13 formed by the perforations 12 in the total area of the air guide element being approximately 10%. Furthermore, the air guide element 11 is adapted to the housing 2 in such a way that a narrow side 16 of the free space 14 has a length 23 of approximately 15 mm. The narrow side 16 extends by definition between a respective point on the edge 20 of the air guide element 11 and a nearest point on a respective wall 7 of the housing 2. This is particularly clear from Figure 5 .

Bezugszeichenlistelist of reference symbols

11
Luftdurchlassair passage
22
GehäuseHousing
33
Anschlussstutzenconnecting piece
44
Innenrauminterior
55
Luftaustrittsquerschnittair outlet cross-section
66
Luftaustrittsbereichair outlet area
77
Wandungwall
88
Ebenelevel
99
erster Luftdurchtrittsquerschnittfirst air passage cross-section
1010
Grundflächefloor space
1111
Luftleitelementair guide element
1212
Perforationperforation
1313
zweiter Luftdurchtrittsquerschnittsecond air passage cross-section
1414
Freiraumopen space
1515
dritter Luftdurchtrittsquerschnittthird air passage cross-section
1616
Schmalseitenarrow side
1717
Längelength
1818
BreiteWidth
1919
Hochachsevertical axis
2020
Randedge
2121
Winkelangle
2222
Laschetab
2323
Längelength
2424
Anschlusskastenjunction box
2525
Übergangsbereichtransition area
2626
Lufteintrittsbereichair inlet area
2727
Anfangsabschnittinitial section
2828
Endabschnittfinal section

Claims (10)

  1. An air passage (1) with
    - a housing (2),
    - a connecting piece (3) for connection to an air distribution system,
    - an internal space (4) delimited by the housing (2), and
    - an air outlet cross-section (5),
    wherein the housing (2) has an air outlet region (6) in the form of a truncated pyramid, in which walls (7) of the housing (2) form an angle (21) of between 5° and 20° with a plane (8) formed by the air outlet cross-section (5),
    wherein the air outlet region (6) is separated from the remaining internal space (4) by a first air passage cross-section (9) formed by a cover surface of the air outlet region (6),
    wherein a base surface (10) of the air outlet region (6) and the first air passage cross-section (9) of the air outlet region (6) are rectangular,
    wherein a rectangular air guiding element (11) is arranged between the first air passage cross-section (9) and the air outlet cross-section (5),
    wherein the air guiding element (11)
    - is plate-shaped,
    - defines a plane parallel to the air outlet cross-section (5) and
    - has a multiplicity of perforations (12) which together form a second air passage cross-section (13),
    wherein a free space (14) is present which extends circumferentially around the air guide element (11) between an outer edge (20) of the air guiding element (11) and the walls (7) of the housing (2) and which forms a third air passage cross-section (15), characterized in that a proportion of a free area, which defines the second air passage cross-section (13), is between 5% and 20%, preferably between 7% and 15%, of a total area of the air guiding element (11), so that a large part of a supply air volume can be guided through the third air passage cross-section in the course of the flow flowing through the air outlet region.
  2. The air passage (1) according to claim 1, characterized in that the air guiding element (11) is a plate, in particular a perforated plate.
  3. The air passage according to claim 2, characterized in that the plate has a thickness in the range between 0.25 mm and 3.0 mm, preferably between 0.5 mm and 2.0 mm.
  4. The air passage (1) according to any one of the preceding claims, characterized in that the air guiding element (11) is fastened to the housing (2).
  5. The air passage (1) according to any one of the preceding claims, characterized in that a narrow side (16) of the free space (14), which narrow side describes a minimum distance from a respective point of the edge of the air guiding element to the wall of the housing, has a length (23) which corresponds to between 3% and 8%, preferably between 4% and 7%, of a width (18) of the base surface (10) of the air outlet region (6), wherein the width (18) of the base surface (10) is assigned to a short side of the rectangular base surface (10).
  6. The air passage (1) according to any one of the preceding claims, characterized in that a ratio of a length (17) of the air outlet region (6) to a width (18) of the air outlet region (6) is between 1.5 : 1 and 5 : 1, preferably between 2 : 1 and 4 : 1.
  7. The air passage (1) according to any one of the preceding claims, characterized in that in relation to a vertical axis (19) of the air outlet region (6), the air guiding element (11) is arranged in a lower half, preferably in the second quarter as viewed from the base surface (10), of the air outlet region (6).
  8. The air passage (1) according to any one of the preceding claims, characterized by a transition region (25) which is arranged between an air inlet region (26) assigned to the connecting piece (3) and the air outlet region (6), wherein the transition region (25) preferably is formed to be at least substantially cuboid in shape.
  9. The air passage (1) according to any one of the preceding claims, characterized in that the air guiding element (11) is arranged within the air outlet region (6) and accordingly, the air outlet region (6) is subdivided by means of the air guiding element (11) into a starting portion (27) located above the air guiding element (11) and an end portion (28) located below the air guiding element (11).
  10. The air passage (1) according to any one of the preceding claims, characterized in that a ratio of the cross-sectional area of the air outlet cross-section (5) in relation to the cross-sectional area of the connecting piece (3) is in a range from 2 to 7, preferably in a range from 3 to 6.
EP23172255.4A 2022-05-10 2023-05-09 Air outlet Active EP4276378B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022111586.0A DE102022111586A1 (en) 2022-05-10 2022-05-10 Air passage

Publications (2)

Publication Number Publication Date
EP4276378A1 EP4276378A1 (en) 2023-11-15
EP4276378B1 true EP4276378B1 (en) 2025-02-19

Family

ID=86330733

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23172255.4A Active EP4276378B1 (en) 2022-05-10 2023-05-09 Air outlet

Country Status (2)

Country Link
EP (1) EP4276378B1 (en)
DE (1) DE102022111586A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4616558A (en) * 1984-11-01 1986-10-14 Total Air, Inc. Gaseous fluid distribution devices
DE102007008019B4 (en) * 2007-02-15 2018-11-15 Krantz Gmbh air outlet
DE102013111244A1 (en) 2013-10-11 2015-04-16 Caverion Deutschland GmbH air outlet

Also Published As

Publication number Publication date
EP4276378A1 (en) 2023-11-15
DE102022111586A1 (en) 2023-11-16

Similar Documents

Publication Publication Date Title
EP2334552B1 (en) Side feeder air guiding element for an aircraft air-conditioning system
DE2130826A1 (en) DEVICE FOR REDUCING AND EQUALIZATION
EP3737599B1 (en) Vehicle having an air conditioning assembly
DE2609030C3 (en) Device for guiding air flows emerging from an air-permeable perforated surface
EP4067753A2 (en) Flat channel arrangement for a downdraft extractor hood
EP4276378B1 (en) Air outlet
DE202006007846U1 (en) Air outlet, especially ceiling air outlet, has housing walls extending at acute angle of between 3 and 25 degrees to perforated plate, and preferably between 7 and 15 degrees
DE8910063U1 (en) Inductive passage
EP2587179B1 (en) Air passage
EP3236173B1 (en) Method of air conditioning a room
DE19626884C2 (en) Air outlet
DE102007039306B4 (en) air outlet
EP3880535B1 (en) Air-conditioning assembly for a rail vehicle
DE10103551A1 (en) Vehicle dashboard comprises base attached to reinforcing board which has air outlets with guide plates positioned beneath them, cover with pattern of perforations fitting over this to provide diffuse air flow over windscreen
DE2614559A1 (en) Underfloor air conditioning grid - has sloping discharge and collection slots for air to be discharged in different directions
EP4224077B1 (en) Air outlet
EP3587943A2 (en) Device for ventilating and controlling the temperature of a room of a building
DE2757060C3 (en) Exhaust air guiding device
DE3731491C1 (en) Elongated air distributor
DE19912567A1 (en) Air conduction device for air through passage incorporates lamellas, between which are air through passage gaps, lamellas being directed somewhat radially to a center
DE2828338C2 (en) Rectangular ceiling outlet
DE29722570U1 (en) Air outlet for ventilation systems
DE8708827U1 (en) Air outlet
DE10157731A1 (en) air outlet
DE9010849U1 (en) Source outlet

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20240318

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20241125

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502023000580

Country of ref document: DE