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. 16, 2019
Filed:
Sep. 26, 2016
Applicant:
Mazda Motor Corporation, Aki-gun, Hiroshima, JP;
Inventors:
Takashi Ikai, Higashihiroshima, JP;
Osamu Aoki, Higashihiroshima, JP;
Kazuo Ichikawa, Hiroshima, JP;
Assignee:
Mazda Motor Corporation, Aki-gun, Hiroshima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F 3/12 (2006.01); F16J 1/01 (2006.01); F02F 3/00 (2006.01); F02F 1/00 (2006.01); F02B 23/10 (2006.01);
U.S. Cl.
CPC ...
F02F 3/12 (2013.01); F02F 3/0084 (2013.01); F16J 1/01 (2013.01); F02B 23/105 (2013.01); F02F 2001/008 (2013.01); F05C 2251/048 (2013.01);
Abstract
An object of the present invention is to, while forming a heat insulating layer on a squish area surface of a top surface of a piston main body, prevent generation of large cracks on the heat insulating layer and suppress damages and peeling of the heat insulating layer. To achieve this object, in the present invention, a heat insulating layer on a squish area surface of a top surface of a piston main body is made thinner than a heat insulating layer on a cavity surface of the top surface of the piston main body.