| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a stack for a fuel cell system capable of suppressing deformation of components formed in an assembling process. <P>SOLUTION: This stack comprises electricity generating parts 11 including membrane-electrode assemblies 12 and a plurality of separators 13, 13' arranged on both faces of the membrane-electrode assemblies, a plurality of end plates 15a arranged on both sides of the electricity generating parts, and a fastening part which is fastened to the plurality of the end plates, and which fixes the end plates and the electricity generating parts. The fastening part comprises fastening rods 19a installed at the end plates, and nuts 19b which are screwed with the fastening rods, and which fix the fastening rods to the end plates, and furthermore comprises stress concentration preventive bodies 17 which are brought into close contact with the nuts, and prevent stresses generated by screwing between the fastening rods and the nuts from being concentrated at installation sites of the fastening part at the end plates. <P>COPYRIGHT: (C)2007,JPO&INPIT |
