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:
Dec. 14, 2021
Filed:
Jun. 03, 2020
Applicant:
Ihi Corporation, Tokyo, JP;
Inventors:
Assignee:
IHI CORPORATION, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02D 15/04 (2006.01); B60Q 9/00 (2006.01); F02B 75/04 (2006.01); F02D 35/02 (2006.01); F02F 1/00 (2006.01); F02F 3/00 (2006.01); F16J 9/00 (2006.01);
U.S. Cl.
CPC ...
F02D 15/04 (2013.01); B60Q 9/00 (2013.01); F02B 75/044 (2013.01); F02D 35/02 (2013.01); F02F 1/004 (2013.01); F02F 3/0015 (2013.01); F16J 9/00 (2013.01);
Abstract
Provided is an engine, including: a cylinder including a cylinder liner; a piston provided inside the cylinder liner; a piston ring provided on the piston; a contact detector configured to detect a contact between a step formed in an inner peripheral surface of the cylinder liner and the piston ring; and a compression ratio controller configured to control a top dead center position of the piston so that the piston ring at the top dead center position is located on a combustion chamber side with respect to the step when the contact is detected.