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:
Jul. 15, 2008
Filed:
Sep. 13, 2005
Yasunori Kotani, Utsunomiya, JP;
Tomoki Kobayashi, Utsunomiya, JP;
Minoru Uoshima, Utsunomiya, JP;
Chihiro Wake, Shioya-gun, JP;
Yoshikazu Murakami, Utsunomiya, JP;
Yasunori Kotani, Utsunomiya, JP;
Tomoki Kobayashi, Utsunomiya, JP;
Minoru Uoshima, Utsunomiya, JP;
Chihiro Wake, Shioya-gun, JP;
Yoshikazu Murakami, Utsunomiya, JP;
Honda Motor Co., Ltd., , JP;
Abstract
A fuel cell system has a fuel cell having a cathode and an anode; a device for supplying an oxidant gas to the cathode; a device for supplying a fuel gas to the anode; a device for controlling a pressure of the oxidant gas in accordance with an operation state of the fuel cell; a regulator to which a pressure of the oxidant gas is applied as a signal pressure via a signal pressure line, wherein the regulator regulates a pressure of the fuel gas based on the signal pressure; and a device for scavenging the signal pressure line by using a scavenging gas when or after electric power generation is stopped. A device for controlling the signal pressure may be provided in the signal pressure line. Preferably, the scavenging gas has a pressure and a temperature higher than those of the oxidant gas supplied to the cathode.