Fuel cell system

Details Fuel cell system Fuel cell system

2008-03-25

2008-03-25

Cantelmo, Gregg (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000, C429S006000, C429S006000, C429S010000

Reexamination Certificate

active

10800168

ABSTRACT:
A humidity sensor is disposed in a circulation passage as a passage of a hydrogen gas supplied to an anode of a fuel cell stack. A load current setting unit determines a level of electrical current supplied to a load. A flow rate controller controls a compressor based on the humidity detected by the humidity sensor and the load current determined by the load current setting unit to regulate a flow rate of the air supplied to a cathode of the fuel cell stack for maintaining the humidity of the hydrogen gas within a predetermined range less than 100%. The fuel cell stack generates the load current efficiently without discharging the hydrogen gas to the outside.

REFERENCES:
patent: 2001/0010875 (2001-08-01), Katagiri et al.
patent: 2002/0006537 (2002-01-01), Kobayashi et al.
patent: 2002/0164509 (2002-11-01), Wheat et al.
patent: 10126090 (2002-02-01), None
patent: 10219626 (2002-11-01), None
patent: 2002-093438 (2002-03-01), None
patent: 2002-260698 (2002-09-01), None
German Office Action for Application No. 10 2004 013 487.1-45, dated Nov. 14, 2006.

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