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:
Feb. 10, 2015
Filed:
Jun. 04, 2009
Ryoichi Shimoi, Yokohama, JP;
Hayato Chikugo, Yokosuka, JP;
Mitsunori Kumada, Yokosuka, JP;
Takashi Aoyama, Yokohama, JP;
Ryoichi Shimoi, Yokohama, JP;
Hayato Chikugo, Yokosuka, JP;
Mitsunori Kumada, Yokosuka, JP;
Takashi Aoyama, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
For implementing a stop control which extracts a current from a fuel cell and consumes a cathode side oxygen at a system stop, the current extraction from the fuel cell is ended in a state that a certain quantity of oxygen smaller than when the current extraction is started remains on a cathode side of the fuel cell. With this, the hydrogen movement to the cathode side after the system stop can be effectively suppressed and thereby a cathode internal hydrogen concentration at the system start can be kept low, thus making it possible to properly process the cathode side hydrogen at the system start.