Variable-delivery refrigerant compressor

Details Variable-delivery refrigerant compressor Variable-delivery refrigerant compressor

1983-11-29

1985-05-28

Freeh, William L.

Pumps

Three or more cylinders arranged in parallel, radial, or...

Condition responsive fluid control

417296, F04B 126, F04B 4902

Patent

active

045197504

ABSTRACT:
A variable-delivery refrigerant compressor wherein the delivery of a compressed refrigerant is adjustable by an actuator which is movable with a discharge pressure of the compressor between a first position at which plural discharge valves corresponding to compression chambers are rendered operative, and a second position at which at least one of the discharge valves is rendered inoperative. A pilot switch valve is disposed in a passage through which the discharge pressure is applied to the actuator. The switch valve controls a supply of refrigerant of the discharge pressure to the actuator such that the actuator is placed in the first position while a suction pressure of the compressor is relatively high, and in the second position while the suction pressure is relatively low.

REFERENCES:
patent: 2065199 (1936-12-01), Sexton
patent: 2626099 (1953-01-01), Ashley
patent: 2682227 (1954-06-01), Burris
patent: 3040969 (1962-06-01), Nicholas
patent: 3552137 (1971-01-01), Christenson
patent: 4403921 (1983-09-01), Kato

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