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. 04, 2007
Filed:
May. 20, 2003
Rolling bearing, rolling bearing for fuel cell, compressor for fuel cell system and fuel cell system
Kenichi Iso, Kanagawa, JP;
Hirotoshi Miyajima, Kanagawa, JP;
Katsuaki Denpou, Kanagawa, JP;
Yujiro Toda, Kanagawa, JP;
Masahiko Yamazaki, Kanagawa, JP;
Michiharu Naka, Kanagawa, JP;
Yasunobu Fujita, Kanagawa, JP;
Kenichi Iso, Kanagawa, JP;
Hirotoshi Miyajima, Kanagawa, JP;
Katsuaki Denpou, Kanagawa, JP;
Yujiro Toda, Kanagawa, JP;
Masahiko Yamazaki, Kanagawa, JP;
Michiharu Naka, Kanagawa, JP;
Yasunobu Fujita, Kanagawa, JP;
NSK Ltd., Tokyo, JP;
Abstract
The rolling bearing of the invention to be incorporated in the compressor for fuel cell system comprises a fluorine-based grease containing a fluororesin and a fluorine-based oil, a urea grease containing a urea compound and a synthetic oil or a lithium complex grease containing a lithium complex and a synthetic oil encapsulated therein. In this arrangement, the grease deterioration of the rolling bearing incorporated in the compressor for force-feeding various fluids between machines can be prevented, making it possible to provide a fuel cell system which can maintain stable operation over an extended period of time.