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
2008-04-23
2011-12-06
Kalafut, Stephen J. (Department: 1727)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Process or means for control of operation
C429S442000, C429S447000
Reexamination Certificate
active
08071244
ABSTRACT:
A fuel cell system includes a cell stack, a temperature sensor which detects a temperature of the cell stack, an outside air temperature sensor which detects an outside air temperature, and a CPU which controls a process in the fuel cell system. When the temperature of the cell stack is lower than a predetermined temperature, the fuel cell system performs a temperature raising operation of the cell stack by making the concentration of aqueous methanol solution in an aqueous solution tank higher than in a normal operation and by making an output of an aqueous solution pump greater than in the normal operation. The CPU sets a run time for the temperature raising operation based on a detection result from the outside air temperature sensor, a detection result from the temperature sensor, and a run time setting table which is stored in a memory. The fuel cell system is capable of raising a temperature of the fuel cell quickly and stably to the predetermined temperature.
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Oishi et al.; “Fuel Cell System and Control Method Therefor”; U.S. Appl. No. 10/599,632, filed Jun. 15, 2007.
Kalafut Stephen J.
Keating & Bennett LLP
Yamaha Hatsudoki Kabushiki Kaisha
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