Patent ID: 6675607
Filing Date: 2004-01-13
Classification: F04B

Abstract:
A swash plate type compressor having a crank chamber defined in a housing, a swash plate mounted on a shaft extending in the crank chamber for the integral rotation, and a compression chamber defined in a cylinder bore by a piston coupled to the swash plate, wherein the rotation of the swash plate allows the piston to reciprocatingly move linearly inside the cylinder bore to compress a refrigerant gas introduced into the compression chamber from a first area dominated by suction pressure and discharge the compressed refrigerant gas into a second area dominated by discharge pressure, wherein the refrigerant gas contains oil that lubricates an interior of the compressor as the refrigerant gas flows therethrough, comprising:a bleeding channel formed within the shaft; a rotary valve integrally rotatable with the shaft and disposed in an accommodating bore existing on an extension line of the shaft, wherein the rotary valve has an outer circumference surface and a suction passage rotated integrally with the shaft and allowing the cylinder bore and the first area to communicate with each other according to the rotation, wherein the suction passage communicates with the accommodating bore; an oil separator having a front end and a rear end, and disposed on the bleeding channel, wherein the oil separator forms part of the bleeding channel and has a shape adapted to centrifuge the oil contained in the refrigerant gas passing therethrough by the rotation of the shaft, and the oil separator is configured such that the bleeding channel extending through the oil separator is flared toward downstream from upstream of a refrigerant flow flowing in the bleeding channel; and a feeding passage for feeding the centrifuged oil to an interface between the outer circumference surface of the rotary valve and an inner circumference surface of the accommodating bore.