| 摘要 |
PURPOSE:To contrive to obtain a good sealing condition in the titled heat exchanger, by always pressedly contacting a seal sliding part to a core by the pressure difference in fluid in a stable condition, by providing a doubly folded part to a film, as well as to continue the part between a casing and a holder hermetically, by a film body. CONSTITUTION:A film body 30 is constituted of an annular film body 30A of which edge is pinched by the side part of a holder 13, and an annular film body 30B of which edge is pinched by the side of the retainer 17 of a casing, and an annular folded film body 30C which connects the internal edge end of a film body 30A to the outer peripheral edge of a film body 30B, and the connected parts 30D and 30E form a folded part. With such an arrangement, a relative displacement in the axial direction and the radius direction by thermal expansion can be absorbed. Leakage of air caused by rising up of a holder 13 and a seal- sliding part 19 above the surface 1C of a core, or excessive depression to the core surface 1C by the seal sliding part 19 by the intermediary of a holder 13 will not be caused, and always stable sliding surface pressure can be maintained. |
