| 摘要 |
The invention concerns a pipeline (1), in particular a pipeline (1) for fuel systems in aircraft, including an inner pipe (6) and an outer pipe (4) surrounding the inner pipe. In accordance with the invention, the inner pipe (6) is made of a metal material and/or, at least in portions, of a synthetic material and, at least in curved portions (5) of the pipeline (1), the outer pipe (4) is made of a synthetic material. Due to the fact that the outer pipe (4) is made of a synthetic material, a significant weight reduction can be accomplished in comparison to conventional coaxial pipelines, which are made entirely of a metal material and which, due to manufacturing reasons, require a larger number of flange joints (2) and (3) in longer curved pipeline portions. The invention also concerns a method for manufacturing such a pipeline (1), in particular a pipeline (1) for fuel systems in aircraft. |
