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:
Apr. 26, 2011
Filed:
Dec. 03, 2003
Applicant:
Tetsuya Kamihara, Yokohama, JP;
Inventor:
Tetsuya Kamihara, Yokohama, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fuel cell system which includes: a fuel cell (); a supply system (Sc) for supplying fuel gas to the fuel cell (); a recirculation system (Rc) for recirculating unused fuel gas from the fuel cell (), in which the fuel gas therein may contain nitrogen; a purge valve () for purging nitrogen contained in the fuel gas in the recirculation system (Rc); and a controller () for adjusting a valve opening of the purge valve () so that a nitrogen concentration of the fuel gas in the recirculation system (Rc) is kept constant.