Evaporator pressure regulator

Details Evaporator pressure regulator Evaporator pressure regulator

1976-02-02

1977-05-24

Schwadron, Martin P.

Fluid handling

Line condition change responsive valves

Direct response valves

F16K 2106

Patent

active

040248887

ABSTRACT:
Pressure acting on the face of the poppet valve is opposed by a gas charge or a spring in the bellows. The valve controls evaporator pressure in an automotive air conditioning system. Destructive response to pressure pulses from the compressor is prevented by the static friction obtained by having a leaf spring bear on opposed sides of a self-lubricating plastic sleeve carried on a shaft fixed on the valve. The various modifications show ways of minimizing the effect of temperature change through the valve and minimizing the differential of the valve.

REFERENCES:
patent: 3208224 (1965-09-01), Hoekstra
patent: 3219063 (1965-11-01), Schumann et al.
patent: 3414009 (1968-12-01), Merchant
patent: 3614966 (1971-10-01), Orth
patent: 3667247 (1972-06-01), Proctor
patent: 3822563 (1974-07-01), Orth

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