| 摘要 |
PURPOSE:To simplify the fitting of a packing and prevent the occurrence of the gas leak and cross leak and defective insulation by coupling the frame- shaped fluororubber packing with a U-shaped cross section and projections at the tips from the front and rear step sections of an insulating plate to the end face. CONSTITUTION:A rubber packing 60 made of fluororubber is press-molded in advance, projections 61 are provided at the tips of the U-shaped cross section respectively, and ribs 62 connecting the front and rear projections 61 at the preset positions are provided. This packing 60 is coupled from the front and rear step sections 41 and 41 of an insulating plate 40 over the end face. The frame-shaped front and rear projections 61 are compressed by an end plate 5 and a cell laminated body 2 end face respectively to constitute individual seal sections. When the same periphery of a stack is divided into flow faces of the fuel gas and an oxidizer, in particular, the intermediate partition body 8' of a frame 8 reinforces the sealing property of a gasket 7 with the ribs 62, and the cross leak between gases is prevented. |
