Heating – Processes of heating or heater operation – Heating of or by wall or radiant surface
Patent
1985-07-08
1989-07-11
Yuen, Henry C.
Heating
Processes of heating or heater operation
Heating of or by wall or radiant surface
432222, 110265, 126 38, 126 44, F27B 1300
Patent
active
048466794
ABSTRACT:
A flueless, low nitrogen oxides emissions, low carbon monoxide emissions space heater having a fuel chamber with a fuel inlet and a fuel distributor. The fuel inlet generates a swirling fuel flow within the fuel chamber. A primary air inlet generates a counter-swirling primary airflow with respect to the swirling fuel flow in a primary air chamber. The fuel distributor discharges the swirling fuel flow into the counter-swirling primary airflow thus forming a fuel/air mixture. An ignitor ignites the fuel/air mixture. A combustion chamber is sealably secured to and in communication with the primary air chamber. The combustion chamber wall has a plurality of secondary air supply holes. An intermediate shell surrounds the combustion chamber wall and forms a space between the intermediate shell and the combustion chamber wall. A secondary air inlet is in communication with the space between the intermediate shell and the combustion chamber wall. An outer protective shell surrounds the intermediate shell. A top ring plate is sealably secured to the top portions of the combustion chamber, the intermediate shell and the outer protective shell.
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Lionel, T., R. J. Martin and N. J. Brown, "A Comparative Study of Combustion in Unvented Space Heating Devices", presented at the Western States Section/The Combustion Institute 1984 Fall Meeting, Stanford University, Stanford, California, Oct. 22-23, 1984.
Institute of Gas Technology
Pauley Douglas H.
Speckman Thomas W.
Yuen Henry C.
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