| 摘要 |
To provide a movable but tight pipe coupling between an exhaust pipe fastened to an engine and an exhaust pipe fastened to a frame, one side of the pipe coupling is provided with a bellows (4) capable of being connected to a pipe and the other side of the pipe coupling is provided with a sleeve (5) which surrounds the end of the bellows and is capable of being connected to a pipe. The bellows and the sleeve combine to allow relative movement between them within the pipe coupling without leakage because a tubular bellows bracket (7) is arranged adjacent to the end of the bellows and has an outer convex shell surface (8) provided with one or more peripheral recesses in which a seal, e.g. a piston ring (9), is inserted, and the sleeve (5) has an internal cylindrical shell surface (10) abutting against the aforesaid bellows bracket shell surface (8) with the aforesaid sealing elements. <IMAGE> |
