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.

Date of Patent:
Oct. 06, 2009

Filed:

Apr. 14, 2005
Applicants:

Kenichiro Ueda, Saitama, JP;

Tomoki Kobayashi, Saitama, JP;

Shigeru Inai, Saitama, JP;

Minoru Uoshima, Saitama, JP;

Yasunori Kotani, Saitama, JP;

Yoshikazu Murakami, Saitama, JP;

Inventors:

Kenichiro Ueda, Saitama, JP;

Tomoki Kobayashi, Saitama, JP;

Shigeru Inai, Saitama, JP;

Minoru Uoshima, Saitama, JP;

Yasunori Kotani, Saitama, JP;

Yoshikazu Murakami, Saitama, JP;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/00 (2006.01); H01M 8/04 (2006.01); H01M 8/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

The fuel cell system is equipped with a fuel cell for generating power by a reaction of fuel and oxidizer gases, a fuel gas flow passage for passing the fuel gas, an oxidizer gas flow passage for passing the oxidizer gas, a sweeping gas supply mechanism for sweeping any of the fuel and oxidizer gas flow passages by a sweeping gas, a sweeping determination mechanism for determining whether to perform sweeping by the sweeping gas supply mechanism, when receiving a stop request for stopping the fuel cell system, a pressure reduction mechanism for reducing a pressure within one of the flow passages lower than when determined not to perform the sweeping, when determined to perform the sweeping by the sweeping determination mechanism, and an actuation mechanism for actuating the sweeping gas supply mechanism after the pressure within the flow passage is reduced by the pressure reduction mechanism.


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