Stoves and furnaces – Heaters – Frictional
Patent
1983-06-17
1984-07-31
Green, Randall L.
Stoves and furnaces
Heaters
Frictional
122 26, 237 121, F24C 900
Patent
active
044623860
ABSTRACT:
A hydraulic friction heating device for providing thermostatically controlled heat to areas requiring heat for comfort or safety. The hydraulic friction heater includes a motor driven positive displacement pump which circulates hydraulic fluid, such as a heat transfer oil, through a tubular coil at a predetermined pressure or temperature. The frictional resistance of the hydraulic fluid traveling through the coil generates usable heat. A blower is disposed to force ambient air into contact with the motor, pump, and tubular coil, and transfers the heat energy to an area to be heated.
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