Temperature sensitive negative-pressure control valve

Details Temperature sensitive negative-pressure control valve Temperature sensitive negative-pressure control valve

1982-02-01

1985-09-10

Lall, Parshotam S.

Valves and valve actuation

Heat or buoyancy motor actuated

137DIG8, 236101C, 123568, F16K 3112

Patent

active

045401535

ABSTRACT:
A temperature sensitive negative-pressure control valve is provided with a pressure adjusting means functioning to output a constant negative-pressure which is determined by the biasing force of an adjusting spring, and a temperature sensitive device for varying the biasing force of the adjusting spring, whereby variation of the biasing force of the adjusting spring imparted to the pressure adjusting device according to the temperature detected by the temperature sensitive device warrants outputting of continuously varying negative-pressure in response to the variation of the detected temperature.

REFERENCES:
patent: 3987770 (1976-10-01), Nomura
patent: 4024845 (1977-05-01), Nomura
patent: 4030460 (1977-06-01), Tanaka et al.
patent: 4166476 (1979-09-01), Yamanaka et al.
patent: 4181106 (1980-01-01), Brakebill
patent: 4254938 (1981-03-01), Inada et al.
patent: 4428353 (1984-01-01), Stahly et al.

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