Patent ID: 6293761
Filing Date: 2001-09-25
Classification: F04B

Abstract:
A variable displacement swash plate type compressor comprising:a cylinder block having a plurality of cylinders arranged radially and circumferentially therein;a crankcase attached to said cylinder block and cooperating with said cylinder block to define an airtight sealed crank chamber;a drive shaft having an outer surface and a longitudinal axis, said drive shaft rotatably supported by bearing means in said crankcase and said cylinder block;a rotor mounted on said drive shaft in said crank chamber;a swash plate having a central opening and opposed surfaces, said drive shaft extending through the opening of said swash plate;a hinge disposed between said rotor and said swash plate to permit said swash plate to be slidable along the outer surface of said drive shaft to thereby change an inclination angle of said swash plate relative to the longitudinal axis of the drive shaft;at least one cylindrical pin disposed between said swash plate and said drive shaft to provide a bearing surface between said swash plate and said drive shaft, said pin having a longitudinal axis which is substantially perpendicular to the longitudinal axis of said drive shaft;a piston reciprocatively disposed in each of the cylinders of said block, each said piston having a pair of shoe pockets;a rotatable shoe disposed in each of the shoe pockets of each said piston, said shoes being operatively engaged with said opposed surfaces of said swash plate.