F - Mech Eng,Light,Heat,Weapons – 23 – D
Patent
F - Mech Eng,Light,Heat,Weapons
23
D
F23D 14/72 (2006.01) F23C 5/00 (2006.01) F23L 1/00 (2006.01) F24H 9/18 (2006.01)
Patent
CA 2549677
A fuel-fired heating appliance, representatively a gas-fired water heater, has a combustion chamber with an outer wall portion defined by a perforated flame arrestor plate having specially configured louvered combustion air intake openings through which combustion air is flowed into the combustion chamber. The louvered openings function to cause the entering combustion air to undergo directional changes as it inwardly traverses the openings and impart turbulence to the air entering the combustion chamber in a manner substantially inhibiting foreign matter blockage of the plate openings, providing an even combustion air inflow across the perforated plate area, and providing the plate with improved operational temperature uniformity along its sides.
Kidd Larry D.
Lannes Eric M.
Taylor Mark A.
Bradford White Corporation
Gowling Lafleur Henderson Llp
The Water Heater Industry Joint Research And Development Consort
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