Fuel cell system

Details Fuel cell system Fuel cell system

2005-04-14

2009-10-06

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

C429S006000, C429S006000, C429S006000

Reexamination Certificate

active

07597974

ABSTRACT:
The fuel cell system is equipped with a fuel cell for generating power by a reaction of fuel and oxidizer gases, a fuel gas flow passage for passing the fuel gas, an oxidizer gas flow passage for passing the oxidizer gas, a sweeping gas supply mechanism for sweeping any of the fuel and oxidizer gas flow passages by a sweeping gas, a sweeping determination mechanism for determining whether to perform sweeping by the sweeping gas supply mechanism, when receiving a stop request for stopping the fuel cell system, a pressure reduction mechanism for reducing a pressure within one of the flow passages lower than when determined not to perform the sweeping, when determined to perform the sweeping by the sweeping determination mechanism, and an actuation mechanism for actuating the sweeping gas supply mechanism after the pressure within the flow passage is reduced by the pressure reduction mechanism.

REFERENCES:
patent: 2001/0008718 (2001-07-01), Kobayashi
patent: 2001/0010872 (2001-08-01), Suzuki et al.
patent: 2002/0098393 (2002-07-01), Dine et al.
patent: 2003/0118876 (2003-06-01), Sugiura et al.
patent: 2004/0175598 (2004-09-01), Bliven et al.
patent: 2005/0136304 (2005-06-01), Pettit et al.
patent: 2003-331893 (2003-11-01), None

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