[go: up one dir, main page]

US2848934A - Method for introducing a gaseous medium in an enclosure - Google Patents

Method for introducing a gaseous medium in an enclosure Download PDF

Info

Publication number
US2848934A
US2848934A US486920A US48692055A US2848934A US 2848934 A US2848934 A US 2848934A US 486920 A US486920 A US 486920A US 48692055 A US48692055 A US 48692055A US 2848934 A US2848934 A US 2848934A
Authority
US
United States
Prior art keywords
medium
enclosure
air
ceiling
openings
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.)
Expired - Lifetime
Application number
US486920A
Other languages
English (en)
Inventor
Allander Claes
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.)
Svenska Flaktfabriken AB
Original Assignee
Svenska Flaktfabriken AB
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 Svenska Flaktfabriken AB filed Critical Svenska Flaktfabriken AB
Application granted granted Critical
Publication of US2848934A publication Critical patent/US2848934A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/18—Air-flow control members, e.g. louvres, grilles, flaps or guide plates specially adapted for insertion in flat panels, e.g. in door or window-pane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation

Definitions

  • the present invention briefly consists in a combination of air introduction through air supply elements, where the air is introduced with a relative high velocity and introduction of a certain quantity of the same medium through one or more adjacent openings in such a direction that a mixing of these two parts of the medium occurs.
  • the advantage of this combination is mainly that great quantities of air can be introduced with a small length of throw, whereby the disadvantage of draft is eleminated when supplying ventilating air.
  • the supply of ventilating air to a room is an important field of use the invention is however not limited to such use.
  • the invention is mainly characterized in that the gaseous medium is introduced into the enclosure partly through a number of openings in a distributing element arranged at the air supply point and partly throughone or more openings adjacent to said distributing element, the lastmentioned part of the medium being introduced substantially perpendicular to the direction of the first-mentioned part of the medium and preferably with a low velocity so that a soft introduction of the medium is obtained by the mixing of said two medium parts immediately after that the medium is supplied.
  • the proportion between the quantities of said parts of the medium can in accordance with a suitable performance of the invention be varied.
  • Another performance of the method according to the invention, wherein the gaseous medium is introduced at the ceiling or at a wall of the enclosure is characterized in that one part of the medium is introduced into the enclosure through a number of openings of a grill-like distributing element and in that the other part of said medium is introduced preferably through an adjacent elongated slot along the ceiling or the wall, the slot having the same extension as said openings or through a row of openings with corresponding length, the two parts of the medium thus being introduced substantially perpendicular to each other.
  • the gaseous medium is introduced at the Patented Aug.
  • one part of the medium is introduced into the enclosure substantially parallel to the ceiling through a number of openings in a grill-like distributing element and the other part ,of the medium through perforations in the adjacent part of the ceiling.
  • the medium introduced through said distributing element is given a fan-shaped diffusion by turning the openings of a distributing element to a corresponding oblique direction.
  • Fig. l is a plan view of a distributing element for the introduction of the medium into an enclosure and Fig. 2 is a cross section of said element along the line 22 in Fig. 1.
  • Fig. 3 illustrates a combination of a grill-like distributing element and perforations in the adjacent part of the ceiling.
  • Fig. 4 shows an arrangement consisting of a distributing element arranged just below the ceiling and surrounded by perforated parts of the adjacent ceiling area.
  • Fig. 5 is a cross section of the distributing element along the line 55 of Fig. 1.
  • the distributing element or grill comprises a frame ll having side walls 22 and a front plate 23 extending outwardly beyond the side Walls 22.
  • the front wall of the frame has an enlarged central opening 24 therein, the side walls of which are spaced inwardly from the side walls 22 of the frame l.
  • a flange 4 extends inwardly of the side walls 22 in spaced relation to the front wall 23.
  • a front plate 2, in the present instance of substantial thickness, is mounted in the frame 1 between the flange 4 and the front wall as shown in Figs. 2 and 5.
  • the front plate 2 is mounted for transverse sliding movement within the frame and is smaller in width than the opening 24 in the front wall 23.
  • the front plate 2 is provided with a number of parallel transverse slots 3 for introducing jets of air into an enclosure.
  • the reduced width of the front plate 2 when the plate is in its right hand limit position ,as shown in Fig. 2, provides a passageway or longitudinal slot 5 through which air can pass into the enclosure, the passageway 5 being perpendicular to the slots 3.
  • the transverse slots 3 are preferably disposed obliquely as shown in Fig. 5 to effect a fan-shaped diffusion of the air jets introduced into the enclosure through the slots 3.
  • the size of this passageway 5' can be varied by moving the plate and its position can be fixed for instance by tightening of a screw 8, which freely passes an elongated aperture 7 in the frame.
  • the direction of the air through the distributing element is illustrated by the arrows A and B, of which A designates the main current of the medium through the opening of the grill plate and B the shunt current through the slot 5.
  • A designates the main current of the medium through the opening of the grill plate
  • B the shunt current through the slot 5.
  • the distributing element is suitably provided with a deflecting flange 6, giving the medium current through the slot 5 a direction substantially perpendicular to the medium current passing through the openings of the grill.
  • Fig. 3 the designations 11 and 15 stand for one wall and the ceiling, respectively, of the enclosure, into which a gaseous medium, preferably air is to be introduced in accordance with the invention.
  • the medium is supplied through the duct 12 and is introduced into the room or enclosure partly through an opening 13, arranged in the wall Ill and partly through a grill or series of openings in the ceiling 15 adjacent to the wall opening 13.
  • This construction provides the same type of air diffusion as the construction Figs. 1 and 2.
  • the wall opening 13 may be provided with a standard grill, or as shown in Fig. 3
  • 15a designates the ceiling of an enclosure and 12a stands for a duct for the medium (ventilating air) to be introduced into the enclosure, said duct being arranged above the ceiling.
  • Said duct communicates partly through the opening 19 with a distributing means 20 which projects downwardly into the enclosure.
  • a portion of the gaseous medium passes outwardly into the room or enclosure through the perforations 18 arranged in the ceiling adjacent to the distributing means 20.
  • the distributing means 20 may either be of circular shape with radial openings 17 or it may consist of a rectangular duct extending along the ceiling, in which case the openings 17 are positioned along the two vertical sides of the duct.
  • the distributing means may be provided with slots 5a above the openings 17 for one part of the medium current and deflecting flanges 6a for the guiding of said medium current in the same manner as is illustrated in Figs. 1 and 2.
  • a method for introducing a gaseous medium into an enclosure the steps which comprise supplying a medium having a given condition to at least one area of introduction into the enclosure, dividing the medium supplied into two portions at each area of introduction, directing one portion of said medium into the enclosure in one direction in a plurality of jet streams at a relatively high velocity, and interrupting said jet streams by directing the second portion of said medium into the enclosure adjacent the entrance of said jet streams in a direction at right angles to said jet streams across said area at a relatively lower velocity than said jet streams, said second portion being formed as a medium-curtain stream coextensive with the area of introduction to thereby intermix the curtain stream with all of said jet streams and prevent creation of drafts in the enclosure.
  • Grill structure for introducing air and like gaseous medium into an enclosure comprising a rectangular frame having an opening therein for passing said air, a front plate covering said opening, a plurality of transverse slots in said front plate for introducing jets of the air therethrough into the enclosure, a longitudinal slot along one edge of the frame coextensive with and at right angles to said transverse slots, a deflector mounted adjacent the remote edge of said longitudinal slot extending outwardly from said front plate and overlying said slot to direct the air passing through said longitudinal slot transversely across said front plate to intermix with the air introduced through said transverse slots, and means in said grill structure to throttle the medium flow through said longitudinal slot.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Exhaust Silencers (AREA)
  • Ventilation (AREA)
US486920A 1954-02-08 1955-02-08 Method for introducing a gaseous medium in an enclosure Expired - Lifetime US2848934A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2848934X 1954-02-08

Publications (1)

Publication Number Publication Date
US2848934A true US2848934A (en) 1958-08-26

Family

ID=20427517

Family Applications (1)

Application Number Title Priority Date Filing Date
US486920A Expired - Lifetime US2848934A (en) 1954-02-08 1955-02-08 Method for introducing a gaseous medium in an enclosure

Country Status (7)

Country Link
US (1) US2848934A (fr)
BE (1) BE535500A (fr)
CH (1) CH328688A (fr)
DE (1) DE1073716B (fr)
FR (1) FR1118963A (fr)
GB (1) GB764558A (fr)
NL (1) NL103238C (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3072038A (en) * 1960-06-17 1963-01-08 Anemostat Corp America Air diffuser
US3444800A (en) * 1962-08-16 1969-05-20 United States Gypsum Co Ventilating partition construction
US3906846A (en) * 1973-06-20 1975-09-23 Charles C Day Dirt control shield for an air outlet
US5001968A (en) * 1989-06-02 1991-03-26 Hudson Associates, Inc. Grocery store air conditioning system having drop-down diffuser units therefor
US5003867A (en) * 1989-06-02 1991-04-02 Hudson Associates, Inc. Air conditioning system for grocery store or the like and diffuser units thereof
US20050095979A1 (en) * 2003-11-03 2005-05-05 Moreno Oscar A. Air Grill

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2609030C3 (de) * 1976-03-05 1984-05-24 Fläkt AB, 13134 Nacka Vorrichtung zum Führen von aus einer luftdurchlässigen perforierten Fläche austretenden Luftströmen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1890236A (en) * 1932-01-18 1932-12-06 Omer V Rookstool Incubator
DE699316C (de) * 1938-03-06 1940-11-27 Julius Pintsch Kom Ges Luftverteiler, insbesondere in Eisenbahnfahrzeugen
US2360343A (en) * 1942-03-02 1944-10-17 Hill System Inc Air conditioning apparatus
US2392393A (en) * 1942-05-28 1946-01-08 Barber Colman Co Air distribution outlet
US2424828A (en) * 1944-08-19 1947-07-29 B F Sturtevant Co Air mixing and distributing duct for air conditioning systems

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2472748A (en) * 1946-03-08 1949-06-07 Trane Co Air register

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1890236A (en) * 1932-01-18 1932-12-06 Omer V Rookstool Incubator
DE699316C (de) * 1938-03-06 1940-11-27 Julius Pintsch Kom Ges Luftverteiler, insbesondere in Eisenbahnfahrzeugen
US2360343A (en) * 1942-03-02 1944-10-17 Hill System Inc Air conditioning apparatus
US2392393A (en) * 1942-05-28 1946-01-08 Barber Colman Co Air distribution outlet
US2424828A (en) * 1944-08-19 1947-07-29 B F Sturtevant Co Air mixing and distributing duct for air conditioning systems

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3072038A (en) * 1960-06-17 1963-01-08 Anemostat Corp America Air diffuser
US3444800A (en) * 1962-08-16 1969-05-20 United States Gypsum Co Ventilating partition construction
US3906846A (en) * 1973-06-20 1975-09-23 Charles C Day Dirt control shield for an air outlet
US5001968A (en) * 1989-06-02 1991-03-26 Hudson Associates, Inc. Grocery store air conditioning system having drop-down diffuser units therefor
US5003867A (en) * 1989-06-02 1991-04-02 Hudson Associates, Inc. Air conditioning system for grocery store or the like and diffuser units thereof
US20050095979A1 (en) * 2003-11-03 2005-05-05 Moreno Oscar A. Air Grill

Also Published As

Publication number Publication date
GB764558A (en) 1956-12-28
NL103238C (fr)
CH328688A (de) 1958-03-31
FR1118963A (fr) 1956-06-13
DE1073716B (de) 1960-01-21
BE535500A (fr)

Similar Documents

Publication Publication Date Title
US3811369A (en) Air outlet for ventilation equipment
US2182690A (en) Air conditioning apparatus
US2564334A (en) Air outlet
US2848934A (en) Method for introducing a gaseous medium in an enclosure
US3699871A (en) Supply air device for injection of preferably cold ventilation air
DE2556538A1 (de) Verfahren und vorrichtung zur ventilierung bzw. temperierung von raeumen
US3665837A (en) Lineal air diffuser bar
US3122087A (en) Air diffuser
US2282946A (en) Register
NO116225B (fr)
US2339629A (en) Diffusion grille
US2560802A (en) Laminar counterflow grille
US2737875A (en) Air outlet device for ventilating apparatus
US3302550A (en) Air distributor
US4679495A (en) Air diffuser
US5052285A (en) Air diffuser for ventilating apparatus
US4475446A (en) High volume ceiling type air diffuser
DE60002633T2 (de) Vorrichtung zur deckenmontage der raumbelüftung und gleichzeitige luftkühlung oder heizung von räumen
GB2117892A (en) Air blowing device
US2814243A (en) Baseboard air distributing duct
DE2033195A1 (de) Einrichtung zum Klimatisieren von Räumen von Gebäuden oder dergleichen
US4606259A (en) Air curtain
US2881689A (en) Air distribution means
US2742926A (en) Ventilating ducts
US3426496A (en) Suspended ventilating ceiling and ventilating runner therefor