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:
Sep. 14, 2021
Filed:
Oct. 28, 2019
Applicant:
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Inventor:
Shintaro Hotta, Susono, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-Ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02F 3/14 (2006.01); F02F 3/26 (2006.01); F01P 3/00 (2006.01); F02B 23/06 (2006.01); F16J 1/00 (2006.01);
U.S. Cl.
CPC ...
F02F 3/14 (2013.01); F02F 3/26 (2013.01); F01P 2003/006 (2013.01); F02B 23/0621 (2013.01); F05C 2251/048 (2013.01); F16J 1/00 (2013.01);
Abstract
A top surface of the piston includes a first region. A heat shielding film is formed on the first area. The top surface further includes a second region. There is no heat shielding film formed on the second region. Instead, the second area is mirror-finished. The top surface includes a central portion. A valve recess portion is formed on an intake side of the central portion. A squish portion is formed the intake side of the valve recess portion. The first area includes at least the central portion. The second area includes at least the squish portion.