Verschleißbeständige Luftfeder

摘要

An automotive air spring consists of an elastic bellows with an embedded two-layer woven strengthening structure. The outer mantle protective layer is a textile with a warp knit fabric with two guide-bars. The first guide bar has elastic yarn with enclosed linen weave following the sequence 1-0-1/1-2-1. The second guide bar employs inelastic yarn in enclosed jersey weave following the sequence 2-3-2/1-0-1. The textile structure (13) is woven and incorporates a first yarn whose filaments have a modulus of more than 5N/1000dtex with respect to 5 per cent stretch, and a second yarn with a modulus of less than 2cN/1000dtex with respect to 5 per cent stretch. Together the first and second yarns form an integrated network in which the yarn filaments are not wrapped around each other. The first yarn is a polyester and the second yarn is polyurethane. The air spring slip interfaces are polytetrafluorethylene.