Piston type variable displacement compressor

Details Piston type variable displacement compressor Piston type variable displacement compressor

1994-11-04

1996-11-26

Thorpe, Timothy

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

417295, F04B 129

Patent

active

055778941

ABSTRACT:
A compressor has a refrigerant gas passage selectively connected to and disconnected from a refrigerant circuit separately provided from the compressor. The compressor has a plurality of pistons reciprocable in a housing for compressing refrigerant gas. A drive shaft is rotatably supported by the housing. A swash plate is supported on the drive shaft for integral rotation with inclining motion with respect to the drive shaft to drive the pistons. The swash plate is movable between a maximum inclined angle and a minimum inclined angle. A disconnecting member disconnects the refrigerant circuit from the refrigerant gas passage when the swash plate is at the minimum inclined angle. A bleed hole bleeds the refrigerant gas from the refrigerant gas passage to the refrigerant circuit to suppress rapid increase of the inclined angle when the disconnecting member operates.

REFERENCES:
patent: 4669272 (1987-06-01), Kawai et al.
patent: 4691526 (1987-09-01), Kobayashi et al.
patent: 4801248 (1989-01-01), Tojo et al.
patent: 4867649 (1989-09-01), Kawashima et al.
patent: 5032060 (1991-07-01), Kobayashi et al.
patent: 5105728 (1992-04-01), Hayase et al.
patent: 5173032 (1992-12-01), Taguchi

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