Patent ID: 6250891
Filing Date: 2001-06-26
Classification: F04B

Abstract:
A variable displacement compressor, wherein the displacement is varied by controlling the pressure in a crank chamber, the compressor comprising:a drive shaft;a piston for compressing a gas;a swash plate located in the crank chamber, wherein the swash plate integrally rotates with the drive shaft, wherein the inclination of the swash plate relative to the drive shaft determines the stroke of the piston, wherein the inclination of the swash plate is varied between a maximum inclination position and a minimum inclination position;a displacement restoration spring for urging the swash plate to increase its angle, wherein the restoration spring fails to urge the swash plate when the swash plate is positioned at or near the maximum inclination position, one end of the restoration spring being fixed to a predetermined part of the drive shaft.