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US 7,597,982 B2Granted
Fuel cell system with a gas supply pump that applies negative pressure to the anode and cathode
AssigneeKabushiki Kaisha Toshiba
InventorsEiichi Sakaue, Yuusuke Sato, Nobutaka Kikuiri, Atsushi Sadamoto
Life of this patent
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Abstract
A fuel cell system is provided with a fuel cell having an anode, a cathode and an electrolyte film put therebetween, a fuel supply unit supplying fuel to the anode and a gas supply unit having a pump, the pump giving negative pressure to the cathode so as to introduce gas containing oxidant to the cathode.
Claims4
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.
4 more elements
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;
- and
- a gas supply unit including a pump including a suction port and a pressure port, the suction port being linked with the cathode and the anode so as to apply negative pressure to both the cathode and the anode,
- wherein the pump is further connected to the fuel supply unit so as to give positive pressure to the tank and to supply the liqiuid fuel to the anode.
2 more elements
Dependencies are inferred from the claim text.