Patent ID: 6517321
Filing Date: 2003-02-11
Classification: F04B

Abstract:
A compressor comprising:a housing, wherein the housing includes a cylinder block; a crank chamber defined in the housing; a drive shaft supported in the crank chamber; a cylinder bore in the housing; a piston accommodated in the cylinder bore; a bias spring engaging the drive shaft to restrict the drive shaft's rearward axial movement; a drive plate driven by The drive shaft and connected to the piston to convert a rotation of the drive shaft to a reciprocating motion of the piston, wherein the drive plate inclines relative to the axis of the drive shaft between maximum inclination position and a minimum inclination position in accordance with the pressure of the crank chamber; a retainer surface formed in the cylinder block, wherein the retainer surface is located around the drive shaft; and a restricting mechanism reactive with the retainer surface, such that the restricting mechanism contacts the drive plate and units the maximum amount of movement of the drive plate in the direction of the drive shaft axis as the drive plate approaches the minimum inclination position.