Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or...
Reexamination Certificate
2005-10-06
2010-11-23
Rhee, Jane (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
C429S428000, C429S433000, C429S434000
Reexamination Certificate
active
07838157
ABSTRACT:
A fuel cell system capable of proper driving even at times of low temperature, below freezing or the like. The fuel cell system includes a fuel cell stack, piping, a pressure regulator, and a control unit. The piping discharges hydrogen or air that is used in electricity generation from the fuel cell stack. The pressure regulator regulates pressure of gases which are supplied and discharged to and from the fuel cell stack in accordance with the size of a load. The control unit judges whether or not there is a likelihood of the pressure regulator freezing, and when it is judged that there is a likelihood of freezing, prohibits a degree of openness of the pressure regulator from going below a predetermined degree of openness.
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Oliff & Berridg,e PLC
Rhee Jane
Toyota Jidosha & Kabushiki Kaisha
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