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:
Dec. 03, 1996
Filed:
Sep. 05, 1995
Applicant:
Inventors:
Tatuya Wakana, Tochigi-ken, JP;
Koichi Inaba, Tochigi-ken, JP;
Koichi Sekiguchi, Tochigi-ken, JP;
Atushi Shimada, Tochigi, JP;
Toshiyuki Terai, Tochigi, JP;
Nobuo Abe, Tochigi-ken, JP;
Kunio Fukami, Tochigi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01C / ;
U.S. Cl.
CPC ...
418 94 ; 418 556 ; 384213 ;
Abstract
In a compressor, a lubricant groove for a contact area between a self-aligning spherical bearing and a housing therefor opens to a relatively low pressure chamber, but is prevented from opening to a relatively high pressure chamber, the housing has an arrangement for restraining a transmission of deformation and/or heat energy from a welded portion thereon to the contact area, and a main shaft, the housing, a housing lid and a pipe for lubricant circulation are coaxially arranged.