Variable capacity refrigerant compressor

Details Variable capacity refrigerant compressor Variable capacity refrigerant compressor

1997-02-19

1999-02-23

Freay, Charles G.

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

417270, 417295, F04B 126

Patent

active

058737049

ABSTRACT:
A variable-capacity swash-plate operated single-headed piston type compressor including a crank chamber having a capacity large enough for receiving a drive shaft, a rotor, a swash plate and shoes engaging between the swash plate and single headed pistons and provided with an open mouth for directly receiving a refrigerant gas returning from an external refrigerating system, a suction passageway for providing a fluid communication between the crank chamber and a suction chamber from which the refrigerant gas is sucked into respective cylinder bores so as to be compressed by the single headed pistons, and a capacity control valve provided with a bellows element for adjustably changing the cross sectional area of the suction passageway in response to a change in a pressure prevailing in the suction passageway.

REFERENCES:
patent: 4586874 (1986-05-01), Hiraga et al.
patent: 4664604 (1987-05-01), Terauchi
patent: 4669272 (1987-06-01), Kawai et al.
patent: 4973229 (1990-11-01), Oono et al.
patent: 5567124 (1996-10-01), Takenaka et al.
patent: 5573379 (1996-11-01), Kimura et al.

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