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:
Mar. 20, 2007
Filed:
Sep. 16, 2003
Ryosuke Hiyoshi, Kanagawa, JP;
Kenshi Ushijima, Kanagawa, JP;
Yoshiaki Tanaka, Kanagawa, JP;
Shunichi Aoyama, Kanagawa, JP;
Katsuya Moteki, Tokyo, JP;
Naoki Takahashi, Yokohama, JP;
Ryosuke Hiyoshi, Kanagawa, JP;
Kenshi Ushijima, Kanagawa, JP;
Yoshiaki Tanaka, Kanagawa, JP;
Shunichi Aoyama, Kanagawa, JP;
Katsuya Moteki, Tokyo, JP;
Naoki Takahashi, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A link mechanism usable for a variable compression ratio mechanism of an internal combustion engine includes first and second links pivotally connected by a pin inserted through cylindrical first and second pin boss portions of the first and second links. Each of the first and second pin boss portions includes a circumferentially extending first narrow section, and a circumferentially extending first wide section having an axial wall thickness greater than the axial wall thickness of the first narrow section. The wide sections of the first and second pin boss portions are overlapped in an region extending in the axial direction of the pin.