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. 11, 2023
Filed:
Jan. 19, 2021
Applicant:
Nissan Motor Co., Ltd., Yokohama, JP;
Inventors:
Hayato Hirayama, Kanagawa, JP;
Tsuyoshi Higuchi, Kanagawa, JP;
Hiroaki Hoshikawa, Kanagawa, JP;
Naoya Tainaka, Kanagawa, JP;
Assignee:
NISSAN MOTOR CO., LTD., Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02F 3/00 (2006.01); F02F 7/00 (2006.01); F16J 10/04 (2006.01);
U.S. Cl.
CPC ...
F02F 7/0085 (2013.01); F16J 10/04 (2013.01);
Abstract
A sliding mechanism of the present invention includes a cylinder bore having a thermally sprayed iron-based coating and includes a piston with a piston ring covered with a hard coating composed mainly of carbon. The thermally sprayed coating has diamond abrasive grains. An area ratio of the diamond abrasive grains to a surface of the thermally sprayed coating is 0.3 to 1.8%, which enables suppressing wear of the piston ring having the hard coating composed mainly of carbon.