Engine cooling-passenger heating system

Details Engine cooling-passenger heating system Engine cooling-passenger heating system

1981-06-26

1983-02-15

Cline, William R.

Heating systems

Heat and power plants

Vehicle

165 51, B60H 102

Patent

active

043736661

ABSTRACT:
An engine cooling-passenger heating system is disclosed having an integrated multi-mode valve arrangement which operates in a no-heat mode to bypass all available flow to the passenger heater past the heater for continued circulation without disruption in the engine cooling system and further operates in a heat mode to effect flow through the heater while also being responsive to the pressure drop across the heater above a predetermined value to also simultaneously establish in the heat mode a restricted connection bypassing a portion of the available coolant to the heater to thereby limit the flow through the heater as well as the pressure differential acting thereon.

REFERENCES:
patent: 2668014 (1954-02-01), Lund
patent: 2672293 (1954-03-01), Ludlow
patent: 2848169 (1958-08-01), Obermaier
patent: 3656689 (1972-04-01), Budzich et al.
patent: 3779307 (1973-12-01), Weiss et al.
patent: 3966119 (1976-06-01), Harter et al.
patent: 4195777 (1980-04-01), Ikebukuro et al.

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