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:
Jun. 19, 2001
Filed:
Apr. 13, 1999
Tsuyoshi Takahashi, Nishikamogun, JP;
Sogo Goto, Nishikamogun, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A fuel cell enhancing the utility rate of supplied gas includes a separator having a plurality of holes extending therethrough and a plurality of ribs communicating between mutually confronting holes. Oxidizing gas supplied into the fuel cell passes through a first oxidizing gas feed manifold formed by a first hole, is distributed into a first unit cell inside oxidizing gas passage formed by a first rib, and is merged in an oxidizing gas exhaust manifold formed by a second hole. This oxidizing gas is guided into a return plate disposed at the end of the fuel cell, is further led into a second oxidizing gas feed manifold, and is distributed into a second unit cell inside gas passage. The oxidizing gas sequentially passes through plural unit cell inside oxidizing gas passages.