Engine preheater

Details Engine preheater Engine preheater

1974-10-15

1976-03-09

Davis, Jr., Albert W.

Electric heating

Heating devices

Combined with diverse-type art device

1231425E, 219301, 339 44R, F02N 1704, F24H 110, H05B 102

Patent

active

039433250

ABSTRACT:
An engine preheater of the lower radiator hose type includes a housing that is adapted to be connected to a radiator hose and which has a passage extending therethrough for passage of coolant through the heater. An electric heating element is housed by the housing and is at least partly embedded therein. It supplies heat to coolant in the passage. A thermostat is located in heat transfer relationship with the housing and is separated from the heating element by a part of the housing which is heat conductive. The thermostat is responsive to the temperature of the heating element for interrupting the supply of power thereto when the temperature sets by the thermostat exceeds a predetermined upper limit. A plug is adapted to be electrically connected to the heating element, and the thermostat is incorporated in this plug. Between the housing and the plug there is provided means that releasably bias the plug towards the housing and hence the thermostat against the housing to assure good thermal contact between the thermostat and the housing.

REFERENCES:
patent: 3482205 (1969-12-01), Senior

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