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. 09, 2014
Filed:
Aug. 01, 2013
Applicant:
Nissan Motor Co., Ltd., Yokohama, JP;
Inventors:
Assignee:
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01M 1/02 (2006.01); F01M 1/06 (2006.01); F01M 11/02 (2006.01); F02B 75/04 (2006.01); F01M 1/08 (2006.01);
U.S. Cl.
CPC ...
F01M 11/02 (2013.01); F01M 1/06 (2013.01); F01M 2011/027 (2013.01); F02B 75/048 (2013.01); F01M 1/08 (2013.01);
Abstract
A lubricating mechanism of a multilink, piston-crank mechanism for an internal combustion engine is provided. At a predetermined crank angle at which the crank pin oil passage and the lower link oil passage are communicative, viewed in the direction of the crankshaft, along a straight line connecting the center of rotation of the crank shaft and the end of the lower link oil passage at the side opposed to the pin boss opposing surface, the pin boss portion is disposed as the lubricating object. On the axial side of the pin boss portion, a recess portion is provided.