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:
Feb. 28, 2017
Filed:
Dec. 11, 2015
Applicant:
Aisin Seiki Kabushiki Kaisha, Kariya-shi, Aichi-ken, JP;
Inventors:
Atsushi Kuniyasu, Toyota, JP;
Takuya Niimi, Handa, JP;
Akihiro Okamoto, Nishio, JP;
Ryo Okazaki, Kariya, JP;
Takayuki Hayashi, Toyokawa, JP;
Assignee:
AISIN SEIKI KABUSHIKI KAISHA, Kariya-Shi, Aichi-Ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B 31/10 (2006.01); F02F 3/10 (2006.01); F02F 3/00 (2006.01); F16J 1/08 (2006.01);
U.S. Cl.
CPC ...
F02F 3/10 (2013.01); B23K 26/364 (2015.10); F02F 3/00 (2013.01); F16J 1/08 (2013.01); B23K 2201/003 (2013.01);
Abstract
A piston for an internal combustion engine includes a piston main body for the internal combustion engine, and a crosshatched groove being formed on a surface of the piston main body. The crosshatched groove includes a crosshatch angle that corresponds to a crossing angle of lines that configure a crosshatch, the crosshatch angle that is set at a range from equal to or greater than 15 degrees to equal to or less than 35 degrees.