Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2007-10-02
2007-10-02
Yuan, Dah-Wei (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S006000, C429S006000
Reexamination Certificate
active
10230589
ABSTRACT:
The present invention provides a polymer electrolyte fuel cell capable of eliminating condensate water, and preventing flooding due to an excessively humidified electrode by a simple structure and easy processing composition.A fuel cell comprising a plurality of stacked cells where separators having respectively a fuel gas passage or an oxidant gas passage formed on the surface thereof are opposed to a fuel electrode or an air electrode and an electrolyte membrane is arranged between the fuel electrode and the air electrode, in which a drainage means is disposed downstream the middle of the fuel gas passage or oxidant gas passage. In addition, a temperature adjustment means for adjusting the temperature of the fuel or the oxidant is provided at least at one point in the path from the supply inlet to the discharge exit of at least one passage of fuel electrode side or the air electrode side.
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patent: 6492055 (2002-12-01), Shimotori et al.
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patent: 2001/0004500 (2001-06-01), Grasso et al.
patent: 2000-090947 (2000-03-01), None
Hamada Akira
Izaki Hirokazu
Miyake Yasuo
Nakato Kunihiro
Suzuki Shuuichi
Sanyo Electric Co,. Ltd.
Weingarten Schurgin, Gagnebin & Lebovici LLP
Yuan Dah-Wei
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