Piston type variable displacement compressor

Details Piston type variable displacement compressor Piston type variable displacement compressor

1995-04-13

1996-12-17

Thorpe, Timothy

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

417295, F04B 129

Patent

active

055846700

ABSTRACT:
A swash plate type compressor is connected with an external refrigerant gas circuit. A device accommodated in the compressor disconnects the external circuit with the suction chamber when the swash plate is at the minimum inclining angle. A pressure decreasing passage creates the connection between the crank chamber and the suction chamber to decrease the pressure in the crank chamber. This passage releases the pressure in the crank chamber to the suction chamber when the pressure in the crank chamber is greater than the pressure in the suction chamber so that the swash plate is inclined toward the maximum inclining angle. An adjusting device adjusts the pressure in the pressure decreasing passage so that the pressure decreasing passage is opened to a greater degree when the swash plate is at the maximum inclining angle than when the swash plate is between the maximum and minimum inclining angles.

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: 4963074 (1990-10-01), Sanuki et al.
patent: 5000666 (1991-03-01), Esaki
patent: 5032060 (1991-07-01), Kobayashi et al.
patent: 5173032 (1992-12-01), Taquchi et al.
patent: 5259736 (1993-11-01), Terauchi
patent: 5370503 (1994-12-01), Terauchi

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