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:
Aug. 31, 1993
Filed:
May. 07, 1992
Nobuyuki Nakajima, Konan, JP;
Tatsuo Nakaya, Konan, JP;
Zexel Corporation, Tokyo, JP;
Abstract
A variable capacity vane compressor includes a bearing arrangement having a radial bearing radially supporting a drive shaft of the compressor, and a thrust bearing rotatably supporting a capacity control element. The bearing arrangement comprises an annular member fixed in a through hole formed through a side block of the compressor, through which the drive shaft extends. The annular member has an inner peripheral surface in which the radial and thrust bearings are received. The annular member is formed of a material having a coefficient of thermal expansion substantially equal to that of a material forming the radial bearing. The thrust bearing has a first race disposed on a side thereof close to a rotor of the compressor, and a second race disposed on a side remote from the rotor. The first race is force-fitted in a through hole formed through the capacity control element and slidably fitted in the inner peripheral surface of the annular member. The first and second races have respective inner peripheral surfaces thereof spaced from an outer peripheral surface of the drive shaft.