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:
Mar. 10, 1987
Filed:
Sep. 20, 1985
Hiroshi Sakamaki, Utsunomiya, JP;
Susumu Sugishita, Hanyu, JP;
Yukio Horikoshi, Kazo, JP;
Kikuji Yanagihashi, Yono, JP;
Nippon Piston Ring Co., Ltd., Tokyo, JP;
Abstract
Apparatus in a vane type rotary compressor for floatingly supporting a rotary sleeve which is mounted in a center housing for rotation with a plurality of vanes movable in a rotor, the apparatus comprising an air-bearing room defined between the inner periphery of the center housing and the outer periphery of the rotary sleeve and supplied with the maximum-pressure or discharge-pressure air through an air-supply passage extending from the discharge chamber or compression working space under the maximum pressure. The air-supply passage is formed with an accumulator for reducing the pulsations and/or temperature of the supplied air. The accumulator is composed of either or both of a relatively large hollow in the thickened wall of the center housing and a plurality of fine bores and alternative grooves forming a S-shaped hole in the suction side wall.