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:
Nov. 25, 1997
Filed:
Feb. 16, 1996
Applicant:
Inventors:
Akira Suzuki, Shimizu, JP;
Kazuaki Shiinoki, Shimizu, JP;
Isamu Kawano, Shimizu, JP;
Shigeru Machida, Ibaraki-ken, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F01C / ;
U.S. Cl.
CPC ...
418 552 ; 418 553 ; 418 86 ; 418101 ;
Abstract
An end plate 3a of an orbiting scroll 3 of an oil-less scroll compressor is provided with cooling holes 7 passing from the periphery of the revolving scroll through the central portion thereof. Using a pressure difference of about 100 mmAq between the ends of the cooling holes 7, the scroll compressor's own intake air is passed through the cooling holes to directly cool the revolving scroll.