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. 10, 1993
Filed:
Aug. 31, 1992
Hugh J Muirhead, Lockport, NY (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A swash plate type compressor is provided having multiple cylinder bores in opposed cylinder blocks with heads, and a piston slidably mounted in each pair of opposed cylinder bores for compressing refrigerant gas. A drive or swash plate provides reciprocal movement of the piston in response to a rotary drive shaft. Thrust bearing assemblies each including a pair of Belleville spring washers are provided on opposite sides of the drive plate. A plurality of rollers held by a cage are positioned in between the washers. When compressed during assembly of the compressor by tightening the through bolts, the washers are flattened so as to extend in a plane substantially perpendicular to the axis of the shaft and provide an axial preload force to compensate for tolerance clearance and wear, and to absorb axial shock loading. A resilient O-ring is mounted on the shaft between one of the washers and the adjacent drive plate to dampen vibration.