Air filtration unit
First Claim
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1. An air filtration unit comprising:
- a housing defining a plenum having a first end, a second end disposed opposite and spaced apart from said first end, and an outlet opening extending between said first end and said second end;
diffuser means disposed in said outlet opening, said diffuser means having a perforated zone disposed adjacent said first end and formed with a plurality of small, closely-spaced openings, and an unperforated zone disposed adjacent said second end;
blower means for directing a flow of air within said plenum toward said second end.
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Accused Products
Abstract
A modular, low-profile ceiling air filtration unit is disclosed having a diffuser plate with an unperforated zone along one edge, the remainder of the plate being perforated. A blower in the unit plenum directs air toward the end of the plenum having the unperforated zone. Turbulent air impinging on the housing end wall is prevented from passing through to a filter by the unperforated zone of the diffuser plate.
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Citations
16 Claims
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1. An air filtration unit comprising:
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a housing defining a plenum having a first end, a second end disposed opposite and spaced apart from said first end, and an outlet opening extending between said first end and said second end; diffuser means disposed in said outlet opening, said diffuser means having a perforated zone disposed adjacent said first end and formed with a plurality of small, closely-spaced openings, and an unperforated zone disposed adjacent said second end; blower means for directing a flow of air within said plenum toward said second end. - View Dependent Claims (2, 3, 4)
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5. An air filtration unit comprising:
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a housing including first and second opposed, spaced-apart end walls, first and second side walls, and an outlet opening defined by said walls, said housing defining a plenum; a diffuser plate disposed in said outlet opening and formed with an unperforated zone and a perforated zone having a plurality of small, closely spaced openings, said unperforated zone disposed along said second end wall and said perforated zone disposed along said first end wall; and
,blower means for directing a flow of air within said plenum across said diffuser plate toward said second end wall. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An air filtration unit comprising:
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a generally rectangular housing defining a plenum and including first and second spaced-apart end walls, first and second spaced-apart side walls, an air inlet, and an air outlet opening defined by said side walls and end walls; a diffuser plate disposed within said air outlet opening and including an unperforated zone disposed along said second end wall, the remainder of said diffuser plate being perforated with a plurality of small, closely-spaced openings; a blower disposed within said plenum for blowing air entering said air inlet into said plenum, said blower having an outlet directing a flow of air toward said second side wall; a filter disposed along said diffuser plate opposite said plenum; said unperforated zone of said diffuser plate being disposed generally coextensively with a region of turbulent air in said plenum caused by the impinging of said flow of air on said second end wall, thereby permitting a uniform flow of air through said openings in the remainder of said diffuser plate and thereafter through said filter. - View Dependent Claims (16)
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Specification