Refrigeration – Disparate apparatus utilized as heat source or absorber – With vapor compression system
Reexamination Certificate
2006-08-08
2006-08-08
Tapolcai, William E. (Department: 3744)
Refrigeration
Disparate apparatus utilized as heat source or absorber
With vapor compression system
C062S324100
Reexamination Certificate
active
07086246
ABSTRACT:
A cooling circuit of a cooling apparatus for a fuel cell comprises a compressor for compressing a gaseous refrigerant, an external heat exchanger arranged on the downstream side of the compressor and for liquefying the compressed refrigerant, a pressure-reducing means arranged on the downstream side of the external heat exchanger, and an accumulator for storing the refrigerant which cools a fuel cell stack main body. The stack main body is connected to the cooling circuit between the pressure-reducing means and the accumulator and a four-way valve is arranged between the compressor and the external heat exchanger, and between the stack main body and the accumulator in the cooling circuit, and the four-way valve introduces the refrigerant from the compressor to the external heat exchanger during the cooling operation, and introduces it to the stack main body during the warming-up operation.
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Takeda Yukihiko
Yoshii Keiichi
Ali Mohammad M.
Harness Dickey & Pierce PLC
Tapolcai William E.
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