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US 7,546,898 B2Granted
Noise reduction with resonatance chamber
AssigneeHewlett-Packard Development Company, L.P.
InventorsMark S. Tracy, Punan Tang, Mohammed I. Chowdhury, Herman A. Price
Life of this patent
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Abstract
An apparatus comprises a housing comprising an air inlet, an air outlet and a divider that divides the housing into first and second air passages. The housing comprises a resonance chamber for each air passage. Each resonance chamber comprises a port, and air waves enter each such resonance chamber through such port and resonate.
Claims18
An apparatus, comprising:
- a housing comprising an air inlet, an air outlet and a divider that divides the housing into first and second air passages;
- and
- a heat exchanger at least a portion of which is contained with the housing;
- wherein said housing comprises a resonance chamber for each air passage, each resonance chamber having a port, and air waves enter each such resonance chamber through said port and resonate;
- and
- wherein said heat exchanger defines a hole that aligns with at least one resonance chamber port.
3 more elements
A system, comprising:
- a fan;
- and
- an acoustical noise reduction device coupled to said fan and comprising a plurality of air passages, each air passage comprising a resonance chamber in which airwaves resonate;
- wherein said acoustical noise reduction device comprises at least a portion of a heat exchanger, said heat exchanger having a hole that aligns with a port of said resonance chamber.
1 more element
An apparatus, comprising:
- means for receiving air;
- means for dividing air into first and second air passages;
- means for resonating air waves in each of said first and second air passages;
- and
- means for exchanging heat aligned with said means for resonating air waves.
2 more elements
Dependencies are inferred from the claim text.