| 摘要 |
PURPOSE:To increase the heat transfer area of heat transfer pipes so as to enhance the cooling ability of a stack of fuel cells by constituting the stack of fuel cells of first and second meandering heat transfer pipes arranged in a cooling plate in such a manner as being engaged with each other to form parallel flow passages of cooling refrigerant, the cooling plate being disposed between unit cells stacked and having conductivity toward the unit cells and forming a non-transmitting separating portion of reaction gas. CONSTITUTION:A cooling plate 9 arranged between unit cells and having conductivity toward the unit cells and forming a non-transmitting separating portion of reaction gas and having an embedding channel on its surface is provided, and a meandering first heat transfer pipe 10 is provided which has an inlet 10a and outlet 10b of refrigerant located on the respective two corners of the cooling plate 9 and which is embedded in the cooling plate 9 by a compound material 12. A second heat transfer pipe 10 is provided which has meandering refrigerant inlets 11a, 11b located on the respective two other corners of the cooling plate 9 and which is embedded in the cooling plate 9 by the compound material 12 in a position where it is engaged with the first heat transfer pipe 10. The heat transfer area is thus increased and also the cooling ability is heightened by the heat transfer pipes 10, 11 arranged inside the cooling plate 9 in such a manner as being engaged with each other to form parallel flow passages. |
