| 摘要 |
The invention relates to a sealing device for a fuel cell arrangement having a plurality of fuel cells combined to form a fuel cell stack (10), said fuel cells being permeable by the gas flows converted in the fuel cells transversely to the longitudinal direction of the fuel cell stack (10), and a gas distributor (20) provided on the longitudinal side of the fuel cell stack (10) for the supply and removal of the gas flows converted in the fuel cells, wherein the sealing device comprises a sealing frame (31) having a number of longitudinal sealing elements (32, 33, 34) disposed between the longitudinal edge of the gas distributor (20) and the fuel cell stack (10) and composed of a dielectric material, said sealing elements being disposed in a longitudinally movable fashion for the compensation of particularly thermally caused relative movements between the fuel cell stack (10) and the gas distributor (20). According to the invention, the longitudinal sealing elements (32, 33, 34) are closely disposed one next to the other in a gap-free fashion on the face, and a tension system having tension devices (40) is provided for producing a mechanical tension pressing the longitudinal sealing elements (32, 33, 34) together in the longitudinal direction between the ends of the sealing frame (31). |
