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US 7,678,481 B2Granted
Fuel cell system with a fuel tank configured to store a fuel at a pressure higher than atmospheric pressure
AssigneeKabushiki Kaisha Toshiba
InventorsYuusuke Sato, Nobutaka Kikuiri
Life of this patent
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Abstract
A fuel cell system includes a fuel tank configured to store a fuel at a pressure higher than atmospheric pressure; a vaporizer configured to vaporize the fuel; a reformer configured to reform the vaporized fuel into a hydrogen rich gas; a CO gas removal apparatus configured to remove CO gas in the hydrogen rich gas; and a cell unit configured to generate electricity by allowing the hydrogen rich gas to react to oxygen.
Claims11
A fuel cell system comprising:
- a fuel tank configured to store a fuel including water at a pressure higher than atmospheric pressure;
- a vaporizer configured to vaporize the fuel;
- a reformer configured to reform the vaporized fuel into a hydrogen rich gas;
- a CO gas removal apparatus configured to remove CO gas in the hydrogen rich gas;
- a valve connecting the CO gas removal apparatus and a combustor, the valve being configured to maintain an upstream side of the CO gas removal apparatus at a pressure higher than atmospheric pressure;
- a cell unit configured to generate electricity by allowing the hydrogen rich gas to react with oxygen;
- and
- an oxygen supply unit configured to supply oxygen to the cell unit and including,
- a first chamber coupled between the CO gas removal apparatus and a fuel electrode of the cell unit,
- a second chamber connected to an air electrode of the cell unit, and
- a partition disposed between the first chamber and the second chamber.
8 more elements
Dependencies are inferred from the claim text.