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:
May. 20, 2014
Filed:
Apr. 03, 2013
Nissan Motor Co., Ltd., Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A variable compression ratio internal combustion engine basically has a main engine body and a variable compression ratio mechanism. A housing is attached to an outside wall of the main engine body to support an actuator. The variable compression ratio mechanism varies an engine compression ratio according to a rotational position of a first control shaft by the actuator. A second control shaft links the actuator to the first control shaft. A bearing includes a pair of split bearing bodies that rotatably holds and supports the second control shaft on the housing. The split bearing body that is farther from the main engine body has higher in rigidity than the housing. The bearing is fixed to the side wall of the main engine body by fixing bolts that pass through both of the split bearing bodies and thread into the side wall of the main engine body.