Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2003-10-10
2008-09-23
Ryan, Patrick (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S010000, C429S006000, C429S006000, C429S006000, C429S006000
Reexamination Certificate
active
07427451
ABSTRACT:
A fuel cell system has a fuel cell (1) performing power generation as a result of reactions in supplied gases, a humidifying device (34) for humidifying at least one supplied gas by using water from water tank (31), and a coolant temperature regulation device (21, 22, 25, 26, 27, 28, 51) for regulating the temperature of the coolant flowing within the fuel cell (1) in order to control the temperature of the fuel cell (1), and a defrosting device (61). The defrosting device (61) melts ice in the water tank (31) during a startup operation of the fuel cell system by applying heat contained in the coolant to the ice. Here, the coolant has an increased temperature as a result of waste heat produced during power generation inside the fuel cell (1).
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Lewis Ben
McDermott Will & Emery LLP
Nissan Motor Co,. Ltd.
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