Patent ID: 11936078
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. Fuel cell system comprising:
fuel cell having cathode and anode;
a turbocharger having a turbine to which exhaust fuel gas and exhaust oxidizing gas discharged from the fuel cell are supplied as combustion gas and having a compressor driven by the turbine;
oxidizing gas supply line for supplying oxidizing gas compressed by the compressor to the cathode;
a control valve provided in the oxidizing gas supply line;
blow line having one end connected to upstream side of the control valve in the oxidizing gas supply line and discharging the oxidizing gas to outside of the system with a blow valve;
start-up air line having one end connected to downstream side of the control valve in the oxidizing gas supply line and supplying start-up air to the oxidizing gas supply line with a blower; and
a control unit that decreases opening of the blow valve, increases opening of the control valve after the opening of the blow valve starts to be decreased, and then stops the supply of the start-up air in state where the control valve is closed and the blow valve is opened to supply the start-up air to the oxidizing gas supply line with the blower in case where start-up of the turbocharger is performed.