Variable delivery compressor

Details Variable delivery compressor Variable delivery compressor

1986-09-24

1988-03-15

Freeh, William L.

Pumps

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

Condition responsive fluid control

417298, F04B 126

Patent

active

047309873

ABSTRACT:
A variable delivery compressor containing a plurality of compression chambers and reciprocatory compression pistons is adapted for use in an air-conditioning circuit of a vehicle. The compressor has a suction chamber communicating with the compression chambers by way of a plurality of suction valves, some of which are capable of being deformed by a valve pressing mechanism from a first position, where the refrigerant is compressed, to a second position where the compression of the refrigerant is partially ineffective. The valve pressing mechanism contains an axially movable spool actuated by an actuating unit controlled by a cooling-load responsive control unit.

REFERENCES:
patent: 2682227 (1954-06-01), Burris
patent: 3000319 (1961-09-01), Tuck
patent: 3552886 (1971-01-01), Olson
patent: 4389168 (1983-06-01), Yannascoli
patent: 4403921 (1983-09-01), Kato
patent: 4547133 (1985-10-01), Nishizawa

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