Thermal isolation device for heater core to prevent over-heat da

Details Thermal isolation device for heater core to prevent over-heat da Thermal isolation device for heater core to prevent over-heat da

1992-09-03

1993-12-21

Ford, John K.

Heating systems

Heat and power plants

Vehicle

236 36, 236 93A, 165 35, B60H 102

Patent

active

052715590

ABSTRACT:
In a vehicle with a liquid cooled engine and a heat exchanger such as an interior heater for the passenger compartment, an isolation device positioned therebetween for normally permitting flow of liquid from the engine cooling system to the heat exchanger and then back to the engine cooling system but for blocking flow to the heat exchanger when the liquid temperature is excessive. The device including a thermally responsive power means responsive to a high liquid temperature to block liquid flow to the heat exchanger and redirect the flow in bypass relation to the heat exchanger.

REFERENCES:
patent: 2277814 (1942-03-01), Booth
patent: 2300011 (1942-10-01), Rose
patent: 3007199 (1975-09-01), Kreger
patent: 4196847 (1980-04-01), Gobien
patent: 4373666 (1983-02-01), Williams
patent: 4556171 (1985-12-01), Fukami et al.
patent: 4693417 (1987-09-01), Arold et al.
patent: 4865249 (1989-09-01), Sugano et al.

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