Engine coolant thermostat with pressure relief feature

Details Engine coolant thermostat with pressure relief feature Engine coolant thermostat with pressure relief feature

1990-03-15

1990-12-18

Kamen, Noah P.

Automatic temperature and humidity regulation

Cooling radiator

Bypass

236 92C, F01P 702

Patent

active

049780603

ABSTRACT:
An engine coolant thermostat having an annular mounting member with the poppet seat and outer peripheral mounting flange covered with a unitary elastomer cover. A thermally responsive actuator means with a movable output force member is registered against a mounting bracket extending from the mounting member. Rod means is slidably received through the poppet and upon a calibrated lost motion movement of the output force member effects opening of the poppet. A spring biases the poppet closed and is overcome at a predetermined coolant pressure to permit the poppet to open as a pressure relief valve.

REFERENCES:
patent: 2400615 (1946-05-01), Warrick et al.
patent: 2770440 (1956-11-01), Woods
patent: 3918418 (1975-11-01), Horn
patent: 4344564 (1982-08-01), Magnuson
patent: 4426036 (1984-01-01), Sliger

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