US3347146A - Air distributor - Google Patents

Air distributor Download PDF

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Publication number
US3347146A
US3347146A US488114A US48811465A US3347146A US 3347146 A US3347146 A US 3347146A US 488114 A US488114 A US 488114A US 48811465 A US48811465 A US 48811465A US 3347146 A US3347146 A US 3347146A
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United States
Prior art keywords
front plate
plane
opening
outlet
air
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Expired - Lifetime
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US488114A
Inventor
Samuelsson Evert
Larkfeldt Birger
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Svenska Flaktfabriken AB
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Svenska Flaktfabriken AB
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02Ducting arrangements
    • F24F13/06Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser

Definitions

  • annular vanes in the form of hollow cylinders having at least the forward part thereof disposed with their common longitudinal axis at an acute angle to the plane of the front plate so that when the plate is rotated, the flow of air may be adjusted in direction.
  • a damper is provided in the duct to regulate the volume of the air flow therethrough.
  • the present invention relates to a distributor or dilfusor comprising a circular front plate with a coaxial circular opening therein merging into a sleeve adapted to be inserted into a mounting frame in the outlet of a supply duct for conditioned air, and more particularly to a distributor comprising a plurality of annular concentric vanes within said opening.
  • the present invention has as its primary object the elimination of the previous inconveniences of time-consuming changes and adjustments needed for such re-adjustment, by means of a novel, simple, and inexpensively constructed air distributor.
  • an air distributor according to the present invention is characterized by a plurality of annular vanes having at least the forward part of each facing the plane of the front plate in the form of a hollow cylinder inclined to the plane of the front plate, the common longitudinal axis of said inclined cylinders of the several vanes forming an acute angle with the plane of the front plate. It was found that an air distributor according to the invention also provides the advantages of a low-pressure drop and a low inherent noise, which makes it particularly well adapted for use in dwelling areas.
  • FIG. 1 is a cross section through an air distributor according to the invention partially displaced forward-1y in its mounting frame;
  • FIG. 2 is a view of the air distributor as seen from the line 22. of FIG. 1.
  • the air distributor comprises a front plate 1, which in the illustrated embodiment, is provided with an inturned outer edge 1a and a circular opening 2, which merges into a rearwardly projecting sleeve 3 adapted to be inserted into a mounting frame 8 surrounding the outlet of a supply duct 9 for conditioned air.
  • a plurality of annular concentric vanes 4 are supported and mutually fixed by stays 5.
  • the external parts 4a of the vanes which in the present instance, terminate in the plane of the front plate, are in the form of hollow cylinders inclined to the plane of the front plate 1, while the internal or rearward parts 4b, -i.e., the parts facing away from the front plate, are in the form of hollow cylinders oriented perpendicularly to the front plate '1.
  • the cylindrical parts 4a have a common axis which intersects the plane of the front plate 1 at the center of the opening, and the cylindrical parts 412 have a second common axis perpendicular to said plane and offset from said center.
  • the vanes may also have the same inclination along their entire length.
  • spring elements 6 are pivoted on two oppositely-extended portions 3a of the sleeve 3, said portions as shown being preferably stiffened by brackets 31) projecting rearwardly from the stays 5.
  • the spring elements 6 engage with their free ends in an annular groove 10 in the mounting frame and pass an unstable intermediate position when the air distributor is being pressed-in, as is previously described in Swedish Patent Specification 157,746.
  • the groove and spring elements also serve as a guide for the air distributor when the latter (preferably pulled-out somewhat as shown in FIG. 1), is rotatably displaced in the mounting frame for revolving the common axis of the parts 4a to effect the desired change in the outflow direction of the air.
  • an air distributor according to the invention irrespective of its mounting in a wall or ceiling, can always insure draftfree supply of pre-conditioned outside air for dwelling areas of various size and shape.
  • An air distributor for insertion into a mounting frame surrounding an outlet for conditioned ai-r, said distributor comprising a circular front plate adapted to cover said outlet and having a circular opening therein, a sleeve merging into said opening and projecting rearwardly therefrom to engage in said frame, and a plurality of annular concentric vanes mounted in said opening, the improvement wherein the forward part of each of the annular vanes facing the plane of the front plate is in the form of a hollow cylinder, inclined to the plane of the front plate, said forward parts of the annular vanes having a common longitudinal axis disposed at an acute angle with the plane of the front plate and intersecting said plane at the center of the opening to direct the conditioned air outwardly from said outlet in the direction of said common axis with a low pressure drop and low inherent noise; and
  • each vane is in the form of a hollow cylinder, said rearward parts having a second common axis perpendicular to the plane of the front plate and offset from the center of said opening.
  • An air distributor according to claim 1 including means mounting said distributor in the frame for rotary displacement about the center of said opening to afiord corresponding revolution of said first common axis.

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  • 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)
  • Fluid-Damping Devices (AREA)

Description

Oct. 17, 1967 E, SAMUELSSON ETAL 3,347,146
AIR DISTRIBUTOR Filed Sept. 17, 1965 INVENTORSZ EVERT SAMUELSSON BIRGER LARKFELDT ATTYSI United States Patent 7 2 Claims (Cl. 98-40) ABSTRACT OF THE DISCLOSURE An air diffuser or distributor for insertion into the outlet of a duct for conditioned air having a face plate adapted to cover the opening of the duct with a central opening in the face plate which merges into a rearwardly projecting sleeve. Within the sleeve, there are a plurality of annular vanes in the form of hollow cylinders having at least the forward part thereof disposed with their common longitudinal axis at an acute angle to the plane of the front plate so that when the plate is rotated, the flow of air may be adjusted in direction. A damper is provided in the duct to regulate the volume of the air flow therethrough.
The present invention relates to a distributor or dilfusor comprising a circular front plate with a coaxial circular opening therein merging into a sleeve adapted to be inserted into a mounting frame in the outlet of a supply duct for conditioned air, and more particularly to a distributor comprising a plurality of annular concentric vanes within said opening.
When designing a ventilating or air conditioning system, the direction in which air is blown into a room in many cases must be adjusted with respect to position of the inlet opening and the character of the room. This problem was heretofore solved by using grills of various designs comprising adjustable vanes or adjustable deflectors. Grills with fixed vanes have also been used which may be fitted in associated mounting frames in a definite number of different positions. It has often proved necessary, however, because of adjustments in the central ventilating plant or because of changes in the working conditions in a room, to make re-adjustments with respect to the blowing direction of the air.
The present invention has as its primary object the elimination of the previous inconveniences of time-consuming changes and adjustments needed for such re-adjustment, by means of a novel, simple, and inexpensively constructed air distributor.
More specifically, an air distributor according to the present invention is characterized by a plurality of annular vanes having at least the forward part of each facing the plane of the front plate in the form of a hollow cylinder inclined to the plane of the front plate, the common longitudinal axis of said inclined cylinders of the several vanes forming an acute angle with the plane of the front plate. It was found that an air distributor according to the invention also provides the advantages of a low-pressure drop and a low inherent noise, which makes it particularly well adapted for use in dwelling areas.
The invention will now he described more fully with reference to the accompanying drawing showing by way of an example an embodiment of an air distributor according to the present invention, wherein:
FIG. 1 is a cross section through an air distributor according to the invention partially displaced forward-1y in its mounting frame; and
FIG. 2 is a view of the air distributor as seen from the line 22. of FIG. 1.
"ice
Referring now to the drawing, the air distributor comprises a front plate 1, which in the illustrated embodiment, is provided with an inturned outer edge 1a and a circular opening 2, which merges into a rearwardly projecting sleeve 3 adapted to be inserted into a mounting frame 8 surrounding the outlet of a supply duct 9 for conditioned air. In the opening 2, a plurality of annular concentric vanes 4 are supported and mutually fixed by stays 5.
In accordance with the invention, the external parts 4a of the vanes, which in the present instance, terminate in the plane of the front plate, are in the form of hollow cylinders inclined to the plane of the front plate 1, while the internal or rearward parts 4b, -i.e., the parts facing away from the front plate, are in the form of hollow cylinders oriented perpendicularly to the front plate '1. The cylindrical parts 4a have a common axis which intersects the plane of the front plate 1 at the center of the opening, and the cylindrical parts 412 have a second common axis perpendicular to said plane and offset from said center. Without departing from the invention, the vanes may also have the same inclination along their entire length.
For mounting the distributor in the mounting frame 8, spring elements 6 are pivoted on two oppositely-extended portions 3a of the sleeve 3, said portions as shown being preferably stiffened by brackets 31) projecting rearwardly from the stays 5. The spring elements 6 engage with their free ends in an annular groove 10 in the mounting frame and pass an unstable intermediate position when the air distributor is being pressed-in, as is previously described in Swedish Patent Specification 157,746. The groove and spring elements also serve as a guide for the air distributor when the latter (preferably pulled-out somewhat as shown in FIG. 1), is rotatably displaced in the mounting frame for revolving the common axis of the parts 4a to effect the desired change in the outflow direction of the air. At the same time, when desired, also the casting length of the air flow may be changed by means of a throttle member 11 mounted in the supply duct 9. For this reason, an air distributor according to the invention, irrespective of its mounting in a wall or ceiling, can always insure draftfree supply of pre-conditioned outside air for dwelling areas of various size and shape.
While a particular embodiment of the present invention has been herein illustrated and described, it is not intended to limit the invention to such disclosure, but changes and modifications may be made therein and there to within the scope of the following claims:
We claim:
1. An air distributor for insertion into a mounting frame surrounding an outlet for conditioned ai-r, said distributor comprising a circular front plate adapted to cover said outlet and having a circular opening therein, a sleeve merging into said opening and projecting rearwardly therefrom to engage in said frame, and a plurality of annular concentric vanes mounted in said opening, the improvement wherein the forward part of each of the annular vanes facing the plane of the front plate is in the form of a hollow cylinder, inclined to the plane of the front plate, said forward parts of the annular vanes having a common longitudinal axis disposed at an acute angle with the plane of the front plate and intersecting said plane at the center of the opening to direct the conditioned air outwardly from said outlet in the direction of said common axis with a low pressure drop and low inherent noise; and
the rearward part of each vane is in the form of a hollow cylinder, said rearward parts having a second common axis perpendicular to the plane of the front plate and offset from the center of said opening.
3 2. An air distributor according to claim 1 including means mounting said distributor in the frame for rotary displacement about the center of said opening to afiord corresponding revolution of said first common axis.
References Cited UNITED STATES PATENTS 2,858,760 11/1958 Lathir op 98-40 2,996,972 8/1961 Johansson 984O FOREIGN PATENTS 59,554 2/1942 Denmark.
ROBERT A. OLEARY, Primary Examiner.
W. E. WAYNER, Assistant Examiner.

Claims (1)

1. AN AIR DISTRIBUTOR FOR INSERTION INTO A MOUNTING FRAME SURROUNDING AN OUTLET FOR CONDITIONED AIR, SAID DISTRIBUTOR COMPRISING A CIRCULAR FRONT PLATE ADAPTED TO COVER SAID OUTLET AND HAVING A CIRCULAR OPENING THEREIN, A SLEEVE MERGING INTO SAID OPENING AND PROJECTING REARWARDLY THEREFROM TO ENGAGE IN SAID FRAME, AND A PLURALITY OF ANNULAR CONCENTRIC VANES MOUNTED IN SAID OPENING, THE IMPROVEMENT WHEREIN THE FORWARD PART OF EACH OF THE ANNULAR VANES FACING THE PLANE OF THE FRONT PLATE IS IN THE FORM OF A HOLLOW CYLINDER, INCLINED TO THE PLANE OF THE FRONT PLATE, SAID FORWARD PARTS OF THE ANNULAR VANES HAVING A COMMON LONGITUDINAL AXIS OF DISPOSED AT AN ACUTE ANGLE WITH THE PLANE OF THE FRONT PLATE AND INTERSECTING SAID PLANE AT THE CENTER OF THE OPENING TO DIRECT THE CONDITIONED AIR OUTWARDLY FROM SAID OUTLET IN THE DIRECTION OF SAID COMMON AXIS WITH A LOW PRESSURE DROP AND LOW INHERENT NOISE; AND THE REARWARD PART OF EACH VANE IS IN THE FORM OF A HOLLOW CYLINDER, SAID REARWARD PARTS HAVING A SECOND COMMON AXIS PERPENDICULAR TO THE PLANE OF THE FRONT PLATE AND OFFSET FROM THE CENTER OF SAID OPENING.
US488114A 1964-09-30 1965-09-17 Air distributor Expired - Lifetime US3347146A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1176864 1964-09-30

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US (1) US3347146A (en)
BE (1) BE669459A (en)
CH (1) CH425145A (en)
DE (1) DE1300657B (en)
DK (1) DK111303B (en)
GB (1) GB1112613A (en)
NL (1) NL6512698A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549474A (en) * 1983-06-08 1985-10-29 Gebruder Trox Gesellschaft Mit Beschrankter Haftung Air conditioner outlet
US4628798A (en) * 1983-10-04 1986-12-16 Claude Tagnon Air heater and distributor unit
US20110287706A1 (en) * 2010-03-15 2011-11-24 John Bean Technologies Corporation Diffuser for aircraft heating and air conditioning system
US20120060429A1 (en) * 2010-09-09 2012-03-15 Tate Access Floors, Inc. Directional grate access floor panel

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162632B (en) * 1984-08-03 1988-11-09 Glidevale Building Prod Ventilator for providing ventilation through an aperture in a panel
GB2294537A (en) * 1994-09-30 1996-05-01 Boulton & Paul Limited Ventilator for a door or window
DE102008042727A1 (en) * 2008-10-10 2010-04-15 BSH Bosch und Siemens Hausgeräte GmbH Outer ventilation grid for spinner washer utilized as heat pump dryer, has four spoke-shaped bars that are fastened at frame, and six concentric circular grid rings, where grid is rotationally symmetrical and made of plastic

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1850822A (en) * 1930-10-10 1932-03-22 Fred M Young Air director vane for unit heaters
US2272937A (en) * 1941-06-11 1942-02-10 Zenith Radio Corp Radio receiving apparatus
US2858760A (en) * 1956-11-27 1958-11-04 Amana Refrigeration Inc Diffuser
US2996972A (en) * 1958-10-17 1961-08-22 Svenska Flaektfabriken Ab Ventilating grille

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH157746A (en) * 1931-04-16 1932-10-15 Martin Motors Inc Two-stroke, reversible internal combustion engine.
US2472748A (en) * 1946-03-08 1949-06-07 Trane Co Air register

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1850822A (en) * 1930-10-10 1932-03-22 Fred M Young Air director vane for unit heaters
US2272937A (en) * 1941-06-11 1942-02-10 Zenith Radio Corp Radio receiving apparatus
US2858760A (en) * 1956-11-27 1958-11-04 Amana Refrigeration Inc Diffuser
US2996972A (en) * 1958-10-17 1961-08-22 Svenska Flaektfabriken Ab Ventilating grille

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549474A (en) * 1983-06-08 1985-10-29 Gebruder Trox Gesellschaft Mit Beschrankter Haftung Air conditioner outlet
US4628798A (en) * 1983-10-04 1986-12-16 Claude Tagnon Air heater and distributor unit
US20110287706A1 (en) * 2010-03-15 2011-11-24 John Bean Technologies Corporation Diffuser for aircraft heating and air conditioning system
US20120060429A1 (en) * 2010-09-09 2012-03-15 Tate Access Floors, Inc. Directional grate access floor panel
US8733060B2 (en) * 2010-09-09 2014-05-27 Tate Access Floors Leasing, Inc. Directional grate access floor panel
US9326428B2 (en) 2010-09-09 2016-04-26 Tate Access Floors Leasing, Inc. Directional grate access floor panel
US9854711B2 (en) 2010-09-09 2017-12-26 Tate Access Floors Leasing, Inc. Directional grate access floor panel

Also Published As

Publication number Publication date
GB1112613A (en) 1968-05-08
DK111303B (en) 1968-07-22
CH425145A (en) 1966-11-30
BE669459A (en) 1965-12-31
DE1300657B (en) 1969-08-07
NL6512698A (en) 1966-03-31

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