Diffuser assembly for non-turbulent air flow

Abstract

The invention is an air flow diffuser that produces an even and non-turbulent flow of air from ventilation or A/C. The diffuser combines a pressure chamber and a discharge chamber to produce a non-turbulent even flow of air perpendicular to the face of the discharge chamber. The pressure and discharge chambers are contiguous with the ducted air flowing first into the pressure chamber and then into the discharge chamber from which chamber the non-turbulent, evenly flowing air flows into the space. Though the diffuser is developed for a downward air flow, the diffuser can be constructed in several shapes, such as triangular, allowing air flow in any direction that is perpendicular to the plane of the discharge plate.

1 . An air diffuser for non-turbulent air flow comprising: a rectangular sheet metal box, the corners and seams of which are constructed to prevent air leakage under pressure; with the top of the box solid except for a hole to allow for connection to a ducted air supply; with the body of the box divided into contiguous chambers; with the upper or pressure chamber created by attaching a metal pressure plate containing a plurality of perforations parallel to the top of the box greater than half of the height dimension of the box and having dimensions equal to the length and width of the box; with the lower or discharge chamber created by attaching a metal discharge plate containing a plurality of perforations flush with the bottom of the box with the same dimensions as the length and width of the box; with the bottom plate perforations larger than the perforations in the center plate; and with the diffuser assembly including all necessary brackets and mounting parts to enable installation in the ceiling of a building. 
   
   
       2 . The diffuser for non-turbulent air flow of  claim 1 , wherein the length of the box is twice the width. 
   
   
       3 . The diffuser for non turbulent air flow of  claim 1 , wherein the body of the box contains an inside sound and insulation lining. 
   
   
       4 . The diffuser for non-turbulent air flow of  claim 1 , wherein the pressure plate containing a plurality of perforations is attached to the inside of the box with a plurality of screws or rivets to brackets in the box. 
   
   
       5 . The diffuser for non-turbulent air flow of  claim 1 , wherein the pressure plate containing a plurality of perforations is attached to the inside of the box by welding the plate to the sides if the box. 
   
   
       6 . The diffuser for non-turbulent air flow of  claim 1 , wherein the discharge plate containing a plurality of perforations which are larger than the perforations of the center plate is attached to the bottom of the box with a plurality of screws or rivets. 
   
   
       7 . The diffuser for non-turbulent air flow of  claim 1 , wherein the box is triangular such that it will fit in the corner and against the walls of a room or space and at ceiling height. 
   
   
       8 . The diffuser for non-turbulent air flow of  claim 7 , wherein the plate with a plurality of perforations connected to the discharge chamber is the vertical hypotenuse side of the triangular chamber and the bottom of the box is solid, creating air flow parallel to the ceiling. 
   
   
       1 . An air diffuser for non-turbulent air flow comprising a pressure chamber connected to receive air from an air source, one wall of said pressure chamber containing a plurality of perforations, a discharge chamber mounted to receive air from said pressure chamber through said perforated wall and having a discharge chamber wall formed with a plurality of perforations larger than those of the pressure chamber 
   
   
       2 . The air diffuser of  claim 1  wherein: said discharge wall is parallel to the perforated wall of said pressure chamber 
   
   
       3 . The air diffuser of  claim 1  wherein: said air diffuser is a hollow box having one surface formed with a means for connecting to an air source. 
   
   
       4 . The air diffuser of  claim 1  wherein: said discharge chamber is contiguous with said pressure chamber. 
   
   
       5 . The air diffuser of  claim 3  wherein: said one surface is the top of said diffuser. 
   
   
       6 . The air diffuser of  claim 3  wherein: said one surface is a side wall of said air diffuser. 
   
   
       7 . The air diffuser of  claim 3  wherein: said perforated wall is parallel to said means. 
   
   
       8 . The air diffuser of  claim 3  wherein: said perforated wall is perpendicular to said means. 
   
   
       9 . The air diffuser of  claim 1  wherein: said air diffuser is rectangular. 
   
   
       10 . The air diffuser of  claim 1  wherein: said air diffuser is triangular 
   
   
       11 . The air diffuser of  claim 1  wherein: said discharge chamber has greater volume than said pressure chamber. 
   
   
       12 . The air diffuser of  claim 1  wherein: the length and width of said pressure chamber and said discharge chamber are not equal. 
   
   
       13 . The air diffuser of  claim 1  wherein: the length and width of said pressure chamber and said discharge chamber are equal. 
   
   
       14 . The air diffuser of  claim 1  wherein: one wall of said pressure chamber, other than said perforated wall, contains a hole for connection to an air source. 
   
   
       15 . The air diffuser of  claim 10  wherein: the perforated wall of said pressure chamber is internal t said triangular diffuser and parallel to said perforate wall of said discharge chamber. 
   
   
       16 . The air diffuser of  claim 10  wherein: one wall of said pressure chamber, other than said perforated wall, has a hole to allow air to enter from an air source. 
   
   
       17 . The air diffuser of  claim 1  wherein: the two chambers are of different shapes. 
   
   
       18 . The air diffuser of  claim 1  wherein: the perforated wall of said pressure chamber and the perforated wall of said discharge chamber are parallel.