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
2011-01-18
2011-01-18
Yuan, Dah-Wei (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
C429S433000, C429S428000, C429S443000, C429S479000
Reexamination Certificate
active
07871731
ABSTRACT:
A method of operating a fuel cell assembly and a fuel cell system use a simple construction to restrain deterioration of power generating performance of a fuel cell assembly at a startup in a subfreezing environment. If an ignition switch is turned off is STEP1, a control unit determines in STEP3whether the temperature of a fuel cell assembly (the internal temperature of the fuel cell assembly) is lower than a predetermined temperature, which is higher than the temperature at which the water produced during power generation freezes. If the internal temperature of the fuel cell assembly is the predetermined temperature or higher, then the processing proceeds to STEP4wherein a power generating condition is adjusted to cause the internal temperature of the fuel cell assembly to rise. In STEP5, an alarm device is actuated. The power generation is continued until the internal temperature of the fuel cell assembly reaches the predetermined temperature or higher, and then the power generation is stopped in STEP8.
REFERENCES:
patent: 2005/0053807 (2005-03-01), Breault et al.
patent: 2006/0134483 (2006-06-01), Gallagher
patent: 2002-093445 (2002-03-01), None
patent: 2003-151601 (2003-05-01), None
Japanese Office Action for Application No. 2004-300303, dated Apr. 20, 2010.
Hayashi Katsumi
Inai Shigeru
Jinba Ryo
Koshinuma Minoru
Mitsuta Naoki
Honda Motor Co. Ltd.
Laurentano Anthony A.
Martin Angela J.
Nelson Mullins Riley & Scarborough LLP
Yuan Dah-Wei
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