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:
Nov. 29, 2011
Filed:
Jun. 30, 2008
Mitsunori Kumada, Yokosuka, JP;
Ryoichi Shimoi, Yokohama, JP;
Hayato Chikugo, Yokosuka, JP;
Takashi Fukuda, Yokohama, JP;
Kazuhiro Kageyama, Yokohama, JP;
Akira Matsunaga, Yokohama, JP;
Mitsunori Kumada, Yokosuka, JP;
Ryoichi Shimoi, Yokohama, JP;
Hayato Chikugo, Yokosuka, JP;
Takashi Fukuda, Yokohama, JP;
Kazuhiro Kageyama, Yokohama, JP;
Akira Matsunaga, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
At shutdown of a fuel cell system, a system-shutdown controller is configured to cause a current extraction device to extract current from a fuel cell in a state where a supply of a fuel gas through a fuel supply system is continued and a supply of an oxidant gas through an oxidant supply system is stopped, and the system-shutdown controller is configured to airtightly close fresh-air control valves after increasing pressure of the fuel gas in a fuel electrode to not less than atmospheric pressure and not less than pressure of the oxidant gas in an oxidant electrode.