[go: up one dir, main page]

EP4109008B1 - Dämpfer für klimaanlagenkanal und fertigungsverfahren für einen dämpfer - Google Patents

Dämpfer für klimaanlagenkanal und fertigungsverfahren für einen dämpfer Download PDF

Info

Publication number
EP4109008B1
EP4109008B1 EP22179396.1A EP22179396A EP4109008B1 EP 4109008 B1 EP4109008 B1 EP 4109008B1 EP 22179396 A EP22179396 A EP 22179396A EP 4109008 B1 EP4109008 B1 EP 4109008B1
Authority
EP
European Patent Office
Prior art keywords
attenuator
frame
air
mantle
adjusting plug
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
EP22179396.1A
Other languages
English (en)
French (fr)
Other versions
EP4109008A1 (de
EP4109008C0 (de
Inventor
Jyrki HÄMÄLÄINEN
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.)
Jeven Oy
Original Assignee
Jeven Oy
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 Jeven Oy filed Critical Jeven Oy
Publication of EP4109008A1 publication Critical patent/EP4109008A1/de
Application granted granted Critical
Publication of EP4109008B1 publication Critical patent/EP4109008B1/de
Publication of EP4109008C0 publication Critical patent/EP4109008C0/de
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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • 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
    • F24F13/0245—Manufacturing or assembly of air ducts; Methods therefor

Definitions

  • the invention generally relates to an attenuator to be installed in an air-conditioning duct.
  • One solution for adjusting the air flow speed and volume in a room's supply or exhaust air duct is a disc valve.
  • the air flow is adjusted by turning the closing disc of the disc valve around its axle, whereby the flow gap (distance) between the closing disc and the valve frame increases or decreases in accordance with the turning direction of the closing disc.
  • a problem with a disc valve is that its sound attenuating properties are weak, its adjustment unprecise, when the distance between the closing disc and the valve frame is adjusted without measuring, and its adjustment is difficult, when the determining of the distance between the closing plate and the valve frame being a prerequisite for the desired air flow and corresponding thereto requires measuring with separate measuring means and a precise adjustment of the distance based on the measuring result.
  • One object of the invention is to solve prior art problems and implement an easily installable attenuator manufactured from a flexible material, which presses tightly against the inner surface of the air-conditioning duct comprising a threaded seam, with the aid of which attenuator the amount of air flow in the air-conditioning duct can be adjusted and the sound caused by the air flow can be attenuated in an efficient manner.
  • One object of the invention is accomplished by the attenuator and manufacturing method according to the independent claims.
  • Some embodiments of the invention comprise the attenuator and manufacturing method according to the independent claims.
  • One attenuator to be installed in an air-conditioning duct comprises a cylindrical frame, flow openings in a direction of a mantle of the frame, and at least one adjusting plug.
  • the frame is manufactured from a porous, sound-absorbing, flexible material so that the mantle of the installed attenuator presses against an inner surface of the air-conditioning duct.
  • the cross-sectional shape and dimensions of the at least one adjusting plug correspond to a corresponding flow opening so that the at least one adjusting plug can be fitted into the corresponding flow opening in order to adjust the amount of air flow in the air-conditioning duct.
  • the angle between a surface formed by a supply air end of the attenuator and the mantle, and an angle between a surface formed by an exhaust air end of the attenuator and the mantle are sharp angles achieving a narrowing of a middle part of the frame, where a diameter of a cross-section of the attenuator is smaller than diameters of the surfaces formed by the supply air end and exhaust air end in order to improve a pressing of the mantle against the inner surface of the air-conditioning duct.
  • One manufacturing method which is meant for manufacturing the above-mentioned attenuator, comprises at least following steps of installing manufacturing in a shape cutter and pressing, by the shape cutter, the manufacturing material with the aid of a mold into a shape of the attenuator so that the narrowing is formed in the middle part of the frame, where the diameter of the cross-section of the attenuator is smaller than the diameters of the surfaces formed by the supply air end and the exhaust air end.
  • Fig. 1a-1d show an attenuator 102 meant for adjusting and measuring air flow IL and attenuating the sound caused by the air flow IL, which can be installed in a threaded seam air-conditioning duct (air-conditioning pipe) 300.
  • the attenuator 102 has a cylindrical frame 104, which is manufactured from porous, sound-absorbing, flexible material.
  • the frame 104 has a mantle 106, which has a depth (height, length) SY and a surface area VP, and supply air and exhaust air ends 108, 110, the diameters of the surface PI of which are PH and the cross-sectional surface areas PP.
  • the mantle 106 of the frame 104 of the attenuator 102 installed in the duct 300 presses sufficiently tightly against the inner surface 312 of the duct 300, so that the attenuator 102 stays in place in the duct 300 and prevents an air flow IL between the mantle 106 and the inner surface 312, when the attenuator 102 to be installed is manufactured so that at least its diameter PH is larger than the diameter SH of the inner surface 312 of the duct 300.
  • the diameter PH of the attenuator 102 is e.g. 1-3 mm larger than the diameter SH of the inner surface 312 of the channel 300.
  • the size of the diameter PH is 64-318 mm, for example 64, 81, 101, 126, 161, 201, 252 and 318 mm, but the attenuator 102 can also be manufactured in other dimensions, depending on the diameter SH of the duct 300.
  • the depth SY of the attenuator 102 in turn is 25-75 mm, e.g. 25, 50 or 75 mm.
  • the attenuator 102 is installed in the duct 300 by pushing it from the open end of the duct 300, whereby the manufacturing material of the attenuator 102 expands and presses into place in the duct 300 against its inner surface 312.
  • the attenuator 102 stays in place (fixed) in the channel 300 with the aid of friction without separate fasteners.
  • the frame 104 has flow openings (ducts) 114 in the direction (depth, height, length direction) of its mantle 106, the purpose of which openings is to allow air flow IL to flow through the attenuator 102 installed in the duct 300 in a controlled manner from the end 108 into the mantle 106 and from the end 110 out of the mantle 104.
  • flow openings ducts
  • the frame 104 has flow openings (ducts) 114 in the direction (depth, height, length direction) of its mantle 106, the purpose of which openings is to allow air flow IL to flow through the attenuator 102 installed in the duct 300 in a controlled manner from the end 108 into the mantle 106 and from the end 110 out of the mantle 104.
  • three, four, in accordance with the figures five, six or more openings 114 have been formed in the frame 104.
  • the openings 114 can be formed in the attenuator 102 in different shapes, e.g. in accordance with the figures with elliptical (oval) or circular shaped cross-sections. Alternatively, or additionally, openings 114 can be formed in the attenuator 102 in different sizes (dimensions), whereby their cross-sectional area AP varies.
  • the openings 114 in the attenuator 102 have, in accordance to the figures, the same shape and size, or alternatively, the shape, size or both of at least one opening 114 differs from the other openings 114 in the attenuator 102.
  • the length of the openings 114 corresponds to the depth SY of the attenuator 102.
  • the openings 114 are formed in the frame 104 at suitable distances from each other and their position in the frame 104 depends on their shape, size, number and possible shape and size differences of the openings 114. It is possible to place the openings 114 symmetrically and evenly in relation to the central axis KE passing through the central points KP of the ends 108, 110 of the frame 104, e.g. as in the figures.
  • the attenuator 102 additionally has at least one adjusting plug 116, each of which plugs 116 is meant to close one of the openings 114 of the frame 104 and to prevent the air flow IL from flowing through the attenuator 102 through the closed opening 114 in question.
  • each attached plug 116 can also be detached in order to open the opening 114.
  • At least one plug 116 is additionally meant to guide the air flow IL to flow through the attenuator 102 via at least one opening 114 left open.
  • each plug 116 corresponds to the shape and size of the cross-sectional surface area AP of the opening 114 meant for it, so that the plug 116 can be fitted in the opening 114 sufficiently tightly in order to close it, and if necessary, it can be detached in order to open the opening 114.
  • the length of the at least one plug 116 corresponds to the depth SY of the attenuator 102 as well as of the openings 114.
  • the amount of air flow IL flowing through the attenuator 102 installed in the duct 300 is smaller by closing a desired number of the openings 114, i.e. by fitting a plug 116 in each of the openings 114 to be closed, so that at least one of the openings 114 remains open, whereby the air flow IL is guided through the at least one opening 114 which remained open, with a cross-sectional surface shape size AP, from the side of the end 108 of the attenuator 102 to the side of the end 110.
  • the frame 104 can in addition to the openings 114 have at least one flow cut (not shown in the figures) in the direction of the mantle 106 shaped in the surface of the mantle 106, so that the shape and size of the flow opening achieved by each cut is determined by the inner surface 312 of the duct 300 and the surface (outer surface) of the mantle 106.
  • the at least one cut is not meant to be closed, but it is meant to always be open and to allow the air flow IL to flow through the attenuator 102 installed in the duct 300 in a controlled manner between the surface of its mantle 106 and the inner surface 312 from the end 108 to the end 110.
  • the at least one cut comprises e.g. one or two cuts.
  • the frame 104 has, in addition to the openings 114, a measuring coupling 118 in the direction of the depth direction of the mantle 106, penetrating the frame 104, into which measuring coupling a measuring pipe needed for measuring a pressure difference between the ends 108, 110 can be installed.
  • the measuring coupling 118 can be closed with its own plug 119 in accordance with the figures.
  • the attenuator 102 is manufactured so that the angle TV between the surface PI formed by the end 108 of the frame 104, meant to be against incoming air flow IL, and the mantle 106, and the angle PV between the surface PI formed by the end 110, meant to be in the direction of the exiting air flow IL, and the mantle 106 are sharp, under 90 degree angles TV, PV, whereby a narrowing KA is formed in the frame 104 (mantle 106), in the middle part when seen in the depth direction.
  • the diameter VH of the cross-sectional surface of the middle part is by the narrowest part of the frame 104, in the middle part in the depth direction of the attenuator 102, smaller than the diameters PH of the surfaces PI formed by the ends 108, 110, in order to improve the pressing of the mantle 106 against the inner surface 312 of the duct 300.
  • the diameters PH of the surfaces PI of the ends 108, 110 are 2-3 mm larger than the narrowed diameter VH of the middle part of the frame 104, so that the attenuator 102 has the shape of a cylinder pressed at the middle.
  • the diameters PH of the ends 108, 110 are 1-3 mm larger and the diameter VH of the narrowest point of the frame 104 is in turn 0-1 mm smaller than the diameter SH of the duct 300, into which the attenuator 102 is intended.
  • the sharp supply and exhaust end edges 120, 122 formed by the angles TV, PV of the attenuator 102 push against the inner surface 312 of the duct 300 equipped with a threaded seam 324 and the inner surface 326 of the grooves formed by the threaded seams 324 on the inner surface 312 regardless of the manufacturer of the duct 300, so that the air flow IL cannot flow uncontrollably between the mantle 106 of the attenuator 102 and the inner surface 312 along the threaded seam 324 regardless of the manufacturer of the duct 300.
  • the frame 104 of the attenuator 102 installed in the duct 300 retains its shape, so that the openings 114 are not compressed, simultaneously reducing their cross-sectional surface area AP and the amount of air flow IL flowing through.
  • the frame 104 of the attenuator 102 and each plug 116 are manufactured using as manufacturing material an open-cell groat pressed foam, in order to support their, and the especially the frame's 104, structure and improve the sound attenuation.
  • the end 108 of the frame 104, i.e. surface PI, and the supply air end 126 toward the supply air of each plug 116 manufactured from groat pressed foam are in the supply air direction coated with a polyethylene plastic film 128, 130 in order to prevent flow through of an air flow IL outside the openings 114.
  • the attenuator 102 is manufactured using shape cutting (die cutting), where the manufacturing material to be used for manufacturing the attenuator 102 is installed in a shape cutter (cutting tool, die cutter) and the shape cutter is used to cut with the aid of a mold the manufacturing material in the shape of an attenuator 102 equipped with a sharp-edged 120, 122 frame 104 and plugs 116 which can be detached therefrom.
  • shape cutting die cutting
  • the dimensions of the attenuator 102 are as desired, in contrast to cutting occurring with the aid of a water jet, where the water jet bends so, that the cross-sectional surface area PP of one end 110 is larger than the other end 108.
  • Fig. 2a-2c show an attenuator 102 corresponding to the previous figures with regards to its manufacturing, shape, dimensions and function, which can be installed in a duct 300 equipped with a threaded seam 324, which attenuator differs from the others only with regards to its layered three-layer structure 232, 234, 236.
  • the three-layer structure of the frame 104 and each plug 116 of the attenuator 102 of the figures is manufactured from polyester fibre layers 232, 234 in the ends 108, 110 and a groat pressed foam layer 236 glued between them, so that the layer structure 232, 234, 236 of the frame 104 and each plug 116 is intended to improve the sound attenuation and reduce sound production cause by the air flow IL.
  • the thickness of the fibre layers 232, 234 is 10-25 mm, e.g. 10, 15, 20 or 25 mm, and the foam layer 236 is 20-50 mm, e.g. 20, 35 or 50 mm, in the three-layer structure 232, 234, 236.
  • Fig. 2d shows an attenuator 102 corresponding to the previous figures, which differs from the attenuators 102 of the previous figures only with regards to its two-layer structure 234, 236.
  • the two-layer structure of the frame 104 and each plug 116 of the attenuator 102 of the figure is manufactured from a groat pressed foam layer 236 and a polyester fibre layer 234 glued together, to the end 110 of which a polyester fibre fabric 237 has been attached with heat processing to prevent the polyester fibre layer 234 from tearing due to the air flow IL of the attenuator 102.
  • the thickness of the foam layer 236 is e.g. 50-65 mm, e.g. 50, 55, 60 or 65 mm, and the fibre layer 234 is e.g. 10-25 mm, e.g. 10, 15, 20 or 25 mm, in the two-layer structure 234, 236.
  • a plastic film 128, 130 does not need to be used in the attenuator 102 in the ends 108, 126 of the frame 104 and each plug 116 on the supply air IL side, but in the two-layer structure 234, 236, a plastic film 128, 130 is used on top of the foam layer 236.
  • FIG. 3 shows the cross-section of a threaded seam duct 300 and a therein installed attenuator 102 manufactured completely from groat pressed foam.
  • the air flow IL comes into the duct 300 installed in the structure 338, through openings 342 in a front grill (air, cover plate) 340 installed in front of it.
  • a front grill air, cover plate
  • four openings 114 have been closed with plugs 116 and only the center opening 114 has been left open, along which the air flow IL can move through the attenuator 102 onward in the duct 300.
  • the mantle 106 of the frame 104 remains at its narrowest middle part about 0.5 mm apart from the duct 300 and starts to press against the inner surface 312 the harder, the closer we get to the ends 108, 110, whereby the sharp edges 120, 122 push while pressing against the threaded seam 324 against its inner surface 326, so that the air flow IL cannot push past the attenuator 102 along the threaded seam 324 between the mantle 106 and the inner surface 312.

Landscapes

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

Claims (11)

  1. Ein Dämpfungsglied (102), das so konfiguriert ist, dass es in einem Klimaanlagenkanal (300) installiert werden kann, welches Folgendes umfasst
    einen zylindrischen Rahmen (104),
    Strömungsöffnungen (114) in einer Richtung eines Mantels (106) des Rahmens und mindestens einen Einstellstopfen (116),
    wobei der Rahmen aus einem porösen, schallabsorbierenden, flexiblen Material hergestellt ist, so dass der Mantel des eingebauten Dämpfungsglieds gegen eine Innenfläche (312) des Klimaanlagenkanals drückt,
    wobei die Querschnittsform und die Abmessungen des mindestens einen Einstellstopfens einer entsprechenden Strömungsöffnung (114) entsprechen, so dass der mindestens eine Einstellstopfen in die entsprechende Strömungsöffnung eingepasst werden kann, um die Menge des Luftstroms im Klimaanlagenkanal einzustellen,
    dadurch gekennzeichnet, dass ein Winkel (TV) zwischen einer Fläche (PI), die von einem Zuluftende (108) des Dämpfungsglieds und dem Mantel gebildet wird, und ein Winkel (PV) zwischen einer Fläche (PI), die von einem Abluftende (110) des Dämpfungsglied sund dem Mantel gebildet wird, spitze Winkel (TV, PV) sind, die eine Verengung (KA) eines mittleren Teils des Rahmens erreichen, wobei ein Durchmesser (VH) eines Querschnitts des Dämpfungsglieds kleiner ist als die Durchmesser (PH) der Flächen (PI), die durch das Zuluftende und das Abluftende gebildet werden, um ein Anpressen des Mantels gegen die Innenfläche des Klimaanlagenkanals zu verbessern.
  2. Das Dämpfungsglied nach dem vorhergehenden Anspruch, wobei die Durchmesser der Zuluft- und Abluftenden (108, 110) des Dämpfungsglieds 2-3 mm größer sind als der Durchmesser der Verengung im mittleren Teil des Dämpfungsglieds, so dass das Dämpfungsglied die Form eines in der Mitte gepressten Zylinders hat.
  3. Das Dämpfungsglied nach einem der vorhergehenden Ansprüche, wobei ein Herstellungsmaterial des Rahmens und des mindestens einen Einstellstopfens aus offenzelligem, grob gepresstem Schaumstoff besteht, um eine Struktur des Rahmens zu unterstützen und die Schalldämpfung zu verbessern.
  4. Das Dämpfungsglied nach Anspruch 3, welches vollständig aus grob gepresstem Schaumstoff hergestellt ist, so dass die Enden (108, 126) des Rahmens und des mindestens einen Einstellstopfens in Zuluftrichtung mit einer Polyethylen-Kunststofffolie (128, 130) beschichtet sind, um das Durchströmen von Luft außerhalb der Strömungsöffnungen zu verhindern.
  5. Das Dämpfungsglied nach Anspruch 3, welches aus einer dreischichtigen Struktur (232, 234, 236) hergestellt ist, die aus Polyesterfaserschichten (232, 234) und einer dazwischen liegenden, grob gepressten Schaumstoffschicht (236) gebildet ist, so dass der Rahmen und der mindestens eine Einstellstopfen aus der dreischichtigen Struktur hergestellt sind, um die Schalldämpfung zu verbessern und die Schallerzeugung zu verringern.
  6. Das Dämpfungsglied nach Anspruch 3, welches aus einer zweischichtigen Struktur (234, 236) hergestellt ist, die aus einer Polyesterfaserschicht (234) und einer grob gepressten Schaumstoffschicht (236) gebildet ist, so dass der Rahmen und der mindestens eine Einstellstopfen aus der zweischichtigen Struktur hergestellt sind, um die Schalldämpfung zu verbessern und die Schallerzeugung zu verringern.
  7. Das Dämpfungsglied nach Anspruch 6, wobei die von der Polyesterfaserschicht abgewandten Flächen der Schaumstoffschicht an den Zuluftenden (108, 126) des Rahmens und des mindestens einen Einstellstopfens mit einer Polyethylen-Kunststofffolie (128, 130) beschichtet sind, um das Durchströmen von Luft außerhalb der Strömungsöffnungen zu verhindern.
  8. Das Dämpfungsglied nach Anspruch 7, wobei die von der Schaumstoffschicht abgewandten Flächen der Abluftenden (110) des Rahmens und des mindestens einen Einstellstopfens mit einem Polyesterfasergewebe (237) beschichtet sind, um die Polyesterfaserschicht zu verstärken.
  9. Das Dämpfungsglied nach einem der vorhergehenden Ansprüche, welches zusätzlich zu den Strömungsöffnungen eine das Dämpfungsglied durchdringende, mantelseitige Messkupplung (118) aufweist, in die ein zur Messung einer Druckdifferenz benötigtes Messrohr einbaubar ist und die mit einem darin eingesetzten Stopfen (119) verschließbar ist.
  10. Das Dämpfungsglied nach einem der vorhergehenden Ansprüche, wobei die Querschnitte der Durchflussöffnungen und des mindestens einen Einstellstopfens eine elliptische Form aufweisen.
  11. Herstellungsverfahren zur Herstellung eines Dämpfungsglieds (102) nach einem der vorhergehenden Ansprüche, umfassend mindestens die folgenden Schritte:
    Einlegen von Fertigungsmaterial in einen Formschneider und
    Pressen des Fertigungsmaterials mit Hilfe des Formschneiders, das Fertigungsmaterial mit Hilfe einer Gussform in eine Form des Dämpfungsglieds einsetzen, so dass die Verengung (KA) im mittleren Teil des Rahmens (104) gebildet wird, wobei der Durchmesser (VH) des Querschnitts des Dämpfungsglieds kleiner ist als die Durchmesser (PH) der durch das Zuluftende (108) und das Abluftende (110) gebildeten Flächen (PI).
EP22179396.1A 2021-06-24 2022-06-16 Dämpfer für klimaanlagenkanal und fertigungsverfahren für einen dämpfer Active EP4109008B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20215755A FI129767B (fi) 2021-06-24 2021-06-24 Ilmanvaihtokanavaan asennettava vaimennin

Publications (3)

Publication Number Publication Date
EP4109008A1 EP4109008A1 (de) 2022-12-28
EP4109008B1 true EP4109008B1 (de) 2024-03-06
EP4109008C0 EP4109008C0 (de) 2024-03-06

Family

ID=82403564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22179396.1A Active EP4109008B1 (de) 2021-06-24 2022-06-16 Dämpfer für klimaanlagenkanal und fertigungsverfahren für einen dämpfer

Country Status (3)

Country Link
EP (1) EP4109008B1 (de)
FI (1) FI129767B (de)
PL (1) PL4109008T3 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2631482A (en) * 2023-06-30 2025-01-08 Fish Innovation Ltd Noise attenuator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI115794B (fi) 1999-11-05 2005-07-15 Jeven Oy Ilmanvaihtokanavan vaimennin
SE518776C2 (sv) 2001-03-08 2002-11-19 Jerry Borander Reglerspjäll
SE525746C2 (sv) * 2002-05-13 2005-04-19 Flaekt Woods Ab Anordning för deplacerande ventilation innefattande en moduluppbyggd stomme med ryggparti och stödplan för uppbärande av filterhusmoduler
JP2008303662A (ja) 2007-06-11 2008-12-18 Mk Seiko Co Ltd 消音器

Also Published As

Publication number Publication date
FI20215755A1 (fi) 2022-08-15
FI129767B (fi) 2022-08-15
PL4109008T3 (pl) 2024-06-24
EP4109008A1 (de) 2022-12-28
EP4109008C0 (de) 2024-03-06

Similar Documents

Publication Publication Date Title
EP4109008B1 (de) Dämpfer für klimaanlagenkanal und fertigungsverfahren für einen dämpfer
EP0621428B1 (de) Rotierender Schalldämpfer
CN100545502C (zh) 真空隔热件及其制造方法
US8210307B2 (en) Sonic absorption device for an air pipeline of an aircraft, in particular of an air conditioning system of an aircraft
EP1765054A2 (de) Scheibenförmige tropfbewässerungsvorrichtung
US20090050404A1 (en) Sound Dampening Flow Channel Device
JP4153993B2 (ja) 平坦な流れ経路の可変な制限境界のための装置
PH12013000184B1 (en) Ear tip and method of manufacturing the same and ear phone including the same
CA2559970A1 (en) Butterfly valve assembly with improved flow characteristics
CA2217285A1 (en) Valve insertion method and assembly for inserting a valve in a line
CH647452A5 (it) Adattatore per l'estrusione simultanea di piu filoni di schiuma sintetica termoplastica mediante un unico estrusore.
US20020162589A1 (en) Fluid control device with reduced sound generation
US5788998A (en) Adjustable throttle with flat channel cross-section
JPH10500361A (ja) 連続押し出し装置
CA2209413A1 (en) Improved melt blowing method for forming a fibrous layered web of filter media, melt blowing apparatus and a layered filter media web product
WO2015106767A1 (en) Multipurpose flow control arrangement
US5116019A (en) Control valve
EP0829666B1 (de) Ventil
US20090166126A1 (en) Sound-damping air-conducting duct and method for the production of a sound-damping air-conducting duct
CN100362271C (zh) 大幅降低由于流体通道所产生的噪音的球阀
US5780067A (en) Adjustable coextrusion feedblock
FI115794B (fi) Ilmanvaihtokanavan vaimennin
JPH09101056A (ja) 空調ダクト接続用の分岐管装置
WO1991014138A1 (en) Method and assembly to reduce noise and/or to control flow associated with a flow system of gaseous medium, such as for example air distribution and/or exhaust system of a ventilation system, both use of a module silencer
JP2006168024A (ja) 被覆材付プラスチック管およびその製造方法

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 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: 20230619

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 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: 20231115

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 MK MT NL NO PL PT RO RS SE SI SK SM TR

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

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602022002231

Country of ref document: DE

U01 Request for unitary effect filed

Effective date: 20240315

U07 Unitary effect registered

Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI

Effective date: 20240322

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240607

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

U20 Renewal fee paid [unitary effect]

Year of fee payment: 3

Effective date: 20240617

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240606

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240607

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NO

Payment date: 20240619

Year of fee payment: 3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20240522

Year of fee payment: 3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240706

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240706

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602022002231

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

26N No opposition filed

Effective date: 20241209