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. 13, 2021
Filed:
Mar. 06, 2018
Applicants:
Nissan Motor Co., Ltd., Yokohama, JP;
Renault S.a.s., Boulogne-Billancourt, FR;
Inventors:
Assignees:
Nissan Motor Co., Ltd., Yokohama, JP;
Renault S.A.S., Boulogne-Billancourt, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 75/04 (2006.01); F02D 15/02 (2006.01); F02F 7/00 (2006.01); F02D 15/04 (2006.01); F02D 13/02 (2006.01);
U.S. Cl.
CPC ...
F02B 75/041 (2013.01); F02D 13/0269 (2013.01); F02D 15/02 (2013.01); F02D 15/04 (2013.01); F02F 7/0002 (2013.01); F02F 7/0021 (2013.01); F02F 7/0095 (2013.01);
Abstract
An upper oil pan assembly is attached to the lower portion of a cylinder block. An opening is formed on a side wall of the upper oil pan assembly. The variable compression ratio mechanism changes a top dead center position of a piston in accordance with the rotational position of a control shaft to thereby change the compression ratio. The control shaft is rotationally driven by an actuator. At least a portion of the actuator is fixed to a main bearing cap in a state in which at least a portion thereof is positioned on the outer side of an upper oil pan assembly.