The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 05, 1989
Filed:
Sep. 16, 1988
Hisanobu Kanamaru, Katsuta, JP;
Kenichi Gunji, Ibaraki, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Automotive Engineering, Ltd., Katsuda, JP;
Abstract
A variable displacement compressor comprises a plurality of pistons revived in a plurality of through-holes formed in a cylinder block arranged in a fixed relationship with a rotary shaft journaled by a stationary part, and a piston drive mechanism including a wobble plate supported on the rotary shaft for wobbling movement. The wobble plate is arranged in opposition to the cylinder block and rotatably holding one ends the pistons. The piston drive mechanism further includes a pair of drive pins having one end portion secured to the cylinder block and extending in parallel with the rotary shaft and the other end portion slidably engaging the wobble plate through spherical bearings, a swash plate having a surface making a sliding contact with a back surface of the wobble plate and supported at one part thereof for an inclination movement in an axial direction of the rotary shaft, and a piston mechanism operatively connected to the swash plate to vary an inclination angle of the latter to thereby vary an inclination angle of the wobble plate without causing rotation of the swash plate.