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. 09, 2010
Filed:
May. 12, 2006
Toshihiro Matsumoto, Osaka, JP;
Hiroki Kusakabe, Osaka, JP;
Norihiko Kawabata, Osaka, JP;
Yoshiki Nagao, Osaka, JP;
Naoko Yoshizawa, Osaka, JP;
Toshihiro Matsumoto, Osaka, JP;
Hiroki Kusakabe, Osaka, JP;
Norihiko Kawabata, Osaka, JP;
Yoshiki Nagao, Osaka, JP;
Naoko Yoshizawa, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a fuel cell composed of a pair of separators with a membrane electrode assembly sandwiched therebetween, gas passages having a plurality of generally linear passage portions, and bent passage portions each of which makes one end portion of the linear passage portions communicated with the other end portion of the linear passage portions, are formed so as to be communicative from a gas introducing port to a discharge port. In inner wall surfaces of the groove portions of the separators constituting the linear passage portions, water-retaining groove portions capable of retaining inside thereof at least part of water generated in the gas passage are formed in such a grooved configuration as to be substantially continuous along the passage portion. As a water drop generated within the gas passage makes contact with retained water within the water-retaining groove portions, growth of the water drop is suppressed to avoid any blockage of the gas passage, by which the anti-flooding property is improved.