Patent ID: 6528193
Filing Date: 2003-03-04
Classification: H01M,Y02E,Y02T

Abstract:
A fuel cell system comprising:a fuel-cell stack which generates an electric power by utilizing a fuel gas and an oxidizing agent gas; a combusting device which receives an off gas of the fuel gas emitted from the fuel-cell stack; an oxidizing agent gas supply device including a turbine and a compressor, the turbine receiving and being driven by an exhaust gas from the combusting device, the compressor being connected to the fuel-cell stack for supplying a pressurized oxidizing agent gas thereto; a carbon hydride family fuel reforming device connected for supplying a reformed carbon hydride family fuel to the fuel cell stack; and oxidizing agent gas pressurizing means for further pressurizing a pressurized oxidizing agent gas from the oxidizing agent gas supply device and for supplying the further pressurized oxidizing agent gas to the carbon hydride family fuel reforming device, wherein the oxidizing agent gas pressurizing means comprises two oxidizing agent gas pressurizing devices, wherein the reforming device includes a reforming portion which reforms the carbon hydride family fuel into the fuel gas and a CO-reducing device which reduces a CO component in the reformed fuel gas, and wherein each of the reforming portion and the CO-reducing portion of the reforming device is connected to one of the oxidizing agent gas pressurizing devices, respectively.