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:
Feb. 10, 1998
Filed:
Sep. 14, 1995
Applicant:
Inventors:
Masaki Koyama, Chiyoda-machi, JP;
Akihiko Yamamoto, Chiyoda-machi, JP;
Muneo Mizumoto, Tsuchiura, JP;
Eiichi Satoh, Tsuchiura, JP;
Shigekazu Nozawa, Shimizu, JP;
Kazutaka Suefuji, Shimizu, JP;
Kensaku Oguni, Shimizu, JP;
Youichi Murai, Chiyoda-machi, JP;
Tomoyuki Sato, Tsuchiura, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F01C / ;
U.S. Cl.
CPC ...
418 556 ; 418 563 ; 418 88 ; 418 89 ; 418 94 ;
Abstract
An oil groove is provided in a space surrounded with the outer peripheral portion of an end plate of a revolving scroll, a stationary scroll and a frame on the inner surface of the frame, and lubricating oil attached to the inner surface of the frame by splashed with rotation of the balancing weight is reserved in the oil groove and then supplied to a key groove for sliding an Oldham-ring.