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. 23, 2006
Filed:
Oct. 16, 2002
Applicants:
Shinichi Takahashi, Vernon, CT (US);
Koudai Yoshizawa, Kanagawa, JP;
Inventors:
Shinichi Takahashi, Vernon, CT (US);
Koudai Yoshizawa, Kanagawa, JP;
Assignee:
Nissan Motor Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Before warmup of a fuel cell stack () is complete, a cooling water pressure of the fuel cell stack () is suppressed lower than the pressure used when the fuel cell system is run in the steady state. In this way, when the system is started from a low temperature state, water in a cathode () and anode () flows efficiently into the cooling water passage (), and water clogging is prevented while maintaining a proper water balance in the fuel cell system.