Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for control of operation
Reexamination Certificate
2005-11-03
2010-12-07
Crepeau, Jonathan (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Process or means for control of operation
C429S443000
Reexamination Certificate
active
07846596
ABSTRACT:
A fuel cell system enables time required for purging to be reduced without a major increase in discharge gas concentration at a time of purging. It comprises a fuel cell; a fuel gas supply path for supplying the fuel gas to an anode; an oxidizing gas supply path for supplying an oxidizing gas to a cathode; a fuel gas circulating path for returning an unreacted fuel gas to an anode inlet side; a dilution box for diluting the fuel gas by the oxidizing gas and for discharging it to outside; and a fuel gas discharge path connecting the fuel gas circulating path and a dilution box discharge gas inlet. A drain valve, a purge valve and an air discharge valve are provided, opening areas of which are different from one another. The drain valve with a smallest opening area is initially opened.
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Machine translation of JP 09-293522, Nov. 1997.
Kobayashi Tomoki
Kotani Yasunori
Miyata Koichiro
Ueda Kenichiro
Uoshima Minoru
Crepeau Jonathan
Fish & Richardson P.C.
Honda Motor Co. Ltd.
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