Heating – Heat generator heats gas or liquid material in a flow structure – Material heated by mixing with combustion products of generator
Patent
1977-11-10
1980-05-06
Yuen, Henry C.
Heating
Heat generator heats gas or liquid material in a flow structure
Material heated by mixing with combustion products of generator
432223, 432224, 431117, 417350, F24H 304, B01D 3334
Patent
active
042015448
ABSTRACT:
A portable space heater features a tubular heat shield of generally uniform cross sectional configuration about and in longitudinally offset, concentric, closely spaced relation to a tubular shell defining its combustion chamber to project beyond a nose cone at its outlet end. The projection of the shield beyond the cone is limited to produce, upon a high velocity pressurized flow of air around the inner surface of and the length of the shield, distinctive flow of air within the projected end of the shield and about the nose cone the pattern of which produces an effective heat exchange with the products of combustion at the cone which substantially moderates the cone temperature.
The heater fuel tank embodies a screen device accommodating the connection of a suction line and the discharge end of a fuel return line, which lines connect to a fuel pump which draws fuel from the tank through the suction line in excess of that required and returns the excess to produce a turbulence which scrubs the screen interior and inhibits passage to the pump of objectionable solids.
The fuel pump and the motor powering the heater have a slip fit coupling between their drive shafts, which requires no fasteners.
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Briggs Eugene C.
Gustafson William E.
Bloom Jerome P.
Keohring Company
Yuen Henry C.
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