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:
Oct. 23, 2007
Filed:
Aug. 10, 2004
Kimio Nishimura, Yokohama, JP;
Yutaka Mabuchi, Yokohama, JP;
Takashi Murata, Yokohama, JP;
Takuya Hirata, Yokohama, JP;
Makoto Kano, Yokohama, JP;
Takahiro Hamada, Yokohama, JP;
Masashi Yamaguchi, Yokohama, JP;
Kimio Nishimura, Yokohama, JP;
Yutaka Mabuchi, Yokohama, JP;
Takashi Murata, Yokohama, JP;
Takuya Hirata, Yokohama, JP;
Makoto Kano, Yokohama, JP;
Takahiro Hamada, Yokohama, JP;
Masashi Yamaguchi, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
There is provided a structure for connecting a piston to a crankshaft in an internal combustion engine, including a piston pin fitted into the piston, a crankpin integral with the crankshaft and a connecting rod having a piston pin bearing portion slidably engaged with an outer cylindrical portion of the piston pin and a crankpin bearing portion slidably engaged with an outer cylindrical portion of the crankpin. At least one of the piston pin bearing portion of the connecting rod and the outer cylindrical portion of the piston pin and at least one of the crankpin bearing portion of the connecting rod and the outer cylindrical portion of the crankpin have hard carbon coatings formed thereon with a hydrogen content of 20 atomic % or less.