Stoves and furnaces – Stoves – Cooking
Patent
1992-10-29
1994-07-05
Yeung, James C.
Stoves and furnaces
Stoves
Cooking
126 39K, 126 21R, 126299R, 126300, 431354, F24C 300
Patent
active
053258428
ABSTRACT:
A novel dual mode, downdraft gas range provides a sealed top and sealed gas burners that can be operated effectively in a power burner mode with a downdraft exhaust and otherwise in an atmospheric mode. In the range, a separate and independently operating air/gas supply chamber for each sealed burner is supplied with a controllable flow of gas, and, in the power burner mode, with a controlled forced flow of primary combustion air from a combustion air blower and pressure-adjustable air plenum that supply all air/gas chambers, and each air/gas supply chamber is provided with a gated opening, which is operated to provide an unobstructed flow of primary combustion air from atmosphere in non-power burner operation. The mixture of air and primary combustion air flows from the air/gas supply chamber through a sealed conduit formed to be free of obstructions and abrupt changes in direction with a flow diffuser provided adjacent the gas burner. In the power burner mode, the air/gas mixture is combusted without being affected by the downdraft exhaust.
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Beach Stanley H.
Harper John
Montgomery Virgil
Noel Paul
Schatz Steve
Maytag Corporation
Yeung James C.
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