| US 7,597,982 B2 | ||
| Fuel cell system with a gas supply pump that applies negative pressure to the anode and cathode | ||
| Eiichi Sakaue, Tokyo (Japan); Yuusuke Sato, Tokyo (Japan); Nobutaka Kikuiri, Koganei (Japan); and Atsushi Sadamoto, Kawasaki (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan) | ||
| Filed on Sep. 24, 2003, as Appl. No. 10/668,161. | ||
| Claims priority of application No. 2002-288071 (JP), filed on Sep. 30, 2002. | ||
| Prior Publication US 2004/0062960 A1, Apr. 01, 2004 | ||
| Int. Cl. H01M 8/04 (2006.01) | ||
| U.S. Cl. 429—34 [429/17; 429/12] | 4 Claims |
| 1. A fuel cell system comprising:
a fuel cell having an anode, a cathode and an electrolyte film put therebetween;
a fuel supply unit that includes a tank and that supplies liquid fuel to the anode;
an exhaust flow path communicating with both the anode and the cathode; and
a gas supply unit including a pump, the pump being linked with the exhaust flow path to apply negative pressure to the cathode
so as to introduce gas containing oxidant to the cathode,
wherein the pump applies negative pressure further to the anode via the exhaust flow path so as to supply the liquid fuel
to the anode, and
wherein the pump is further connected to the fuel supply unit so as to give positive pressure to the tank and to supply the
liquid fuel to the anode.
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