Patent ID: 6786704
Filing Date: 2004-09-07
Classification: F04B

Abstract:
A compressor comprising:a shaft axially supported by only a front end part of a housing through a bearing and receiving rotational power from a power source; a drive plate rotating by being connected with and supported by said shaft and able to tilt with respect to said shaft; a shoe holding plate supported by said drive plate through a holding plate thrust bearing forming a roller bearing and thereby taking the same tilt angle, but prevented from rotating; a plurality of shoes able to engage with a plurality of shoe guide grooves formed in a radial direction at a peripheral part of said shoe holding plate and slide in the radial direction; a drive thrust bearing arranged between said shoes and said drive plate; a plurality of pistons directly connected with said shoes and engaging in reciprocating motion, inserted in cylinder bores to suck in and compress a fluid, and preventing rotation of said shoe holding plate; and means for changing the tilt angle of said drive plate and said shoe holding plate to change a discharge capacity.