Patent ID: 6533555
Filing Date: 2003-03-18
Classification: F04B

Abstract:
A swash plate type compressor, comprising:a housing, in which a suction chamber, a discharge chamber and a crank chamber are defined, the housing having at least one cylinder bore; a drive shaft, which is rotatably supported by the housing, the drive shaft having a first end portion and a second end portion, wherein the first end portion protrudes from the housing; first and second radial bearings, which support the first and second end portions of the drive shaft, respectively; a piston, which is reciprocally accommodated in the cylinder bore; a cam plate, which is accommodated in the crank chamber, wherein the cam plate is operably coupled to the piston to convert rotation of the drive shaft into reciprocation of the piston; a shaft sealing assembly for sealing the space between the drive shaft and the housing, the shaft sealing assembly being accommodated in the suction chamber, wherein the suction chamber is closer to the first end portion of the drive shaft than the first radial bearing is; and a passage formed in the drive shaft to connect the suction chamber to the crank chamber, wherein the passage has an inlet and an outlet, wherein the inlet is closer to the second end portion than the second radial bearing is, and wherein the outlet is closer to the second end portion than the first radial bearing is.