Fuel cells with integrated humidification and method for...

Details Fuel cells with integrated humidification and method for... Fuel cells with integrated humidification and method for...

2007-02-06

2007-02-06

Maples, John S. (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S010000, C429S006000, C429S006000

Reexamination Certificate

active

10276236

ABSTRACT:
The invention relates to a fuel cell with integrated humidification, comprising a cathode-side or anode-side humidification unit with a heat exchanger, a condensate separator, a capillary tube and a Venturi nozzle and/or pump. The invention also relates to a method for humidifying process gas for the operation of a fuel cell wherein only product water is used and wherein, according to a first embodiment, the gas containing O2for the cathode is humidified by the cathode off-gas which contains water vapor by means of a first humidification unit and/or the combustion gas containing H2for the anode is humidified by the anode off-gas which contains water vapor by means of a second humidification unit or wherein, according to a second embodiment, the combustion gas containing H2for the anode is humidified by the cathode off-gas which contains water vapor by means of a first humidification unit and/or the gas containing O2for the cathode is humidified by the anode off-gas which contains water vapor by means of a second humidification unit.

REFERENCES:
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patent: 6013385 (2000-01-01), DuBose
patent: 6106964 (2000-08-01), Voss et al.
patent: 6787255 (2004-09-01), Misumi
patent: 0 301 757 (1988-07-01), None
patent: 0 629 014 (1994-05-01), None
patent: 07176313 (1995-07-01), None

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