Anode loop pressure control in PEM fuel cell system

Details Anode loop pressure control in PEM fuel cell system Anode loop pressure control in PEM fuel cell system

2005-11-21

2010-12-21

Maples, John S (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

07855025

ABSTRACT:
A method of operating a fuel cell stack is disclosed. The method includes operating the fuel cell stack in accordance with a predetermined profile of fuel gas/oxidant gas delta pressure vs. time, monitoring a fuel gas/oxidant gas delta pressure vs. time value of the fuel cell stack and adjusting pressure of the fuel gas by consuming excess quantities of the fuel gas in the fuel cell stack when the fuel gas/oxidant gas delta pressure vs. time value of the fuel cell stack exceeds the predetermined profile.

REFERENCES:
patent: 6646413 (2003-11-01), Autenrieth et al.
patent: 2003/0008185 (2003-01-01), Sugino et al.
patent: 2003/0022043 (2003-01-01), McElroy
patent: 2003/0157383 (2003-08-01), Takahashi
patent: 2004/0013920 (2004-01-01), Hasuka et al.
patent: 2004/0018404 (2004-01-01), Kojima et al.
patent: 2004/0038098 (2004-02-01), Imamura et al.
patent: 2004/0224191 (2004-11-01), Skiba

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