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:
May. 18, 2010
Filed:
Jul. 20, 2007
Applicants:
Satoshi Yamamura, Saitama, JP;
Kazuo Shibata, Saitama, JP;
Kiyoyuki Kawai, Tokyo, JP;
Inventors:
Assignees:
Honda Motor Co., Ltd., Tokyo, JP;
Teikoku Piston Ring CO., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 14/06 (2006.01); F02F 5/00 (2006.01); F16J 9/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
An engine includes: a cylinder block; and a piston ring, in which the cylinder block has a cylinder liner portion formed of an aluminum-based composite reinforced by a ceramic containing at least either of a silicon carbide and an alumina, and in which the piston ring is coated with a nitride film () including a vanadium nitride layer () exposed on an outer circumferential sliding surface ().