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:
Apr. 15, 1980
Filed:
Jul. 14, 1978
Applicant:
Inventors:
Masami Shimizu, Chiba, JP;
Takaaki Koike, Hachioji, JP;
Assignee:
Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277 79 ; 277133 ; 277170 ; 277217 ; 415110 ; 417407 ;
Abstract
A shaft sealing device for turbocharger wherein the outer peripheral surface of a piston or shaft sealing ring and its mating surface of the shaft bore of a bearing casing are axially tapered or diverted at the same positive angle toward the high pressure side, whereby wear of the ring may be avoided and the leakage of gases from the turbine into the bearing casing and the leakage of oil from the bearing casing to the turbine may be prevented.