Air spring has a level measurement arrangement comprising textile layers within the vulcanized wall of the spring bellows, with the textiles comprising a number of conducting threads so that change in height can be measured

摘要

Air spring has a cover (4) and a rolling piston (6) with a roll-bellows comprised of sealed tensioned elastomer material. Within the bellows wall (8) are two vulcanized cross thread textile layers (16a, 16b). The threads of the textile layers are made with individual filaments, at least a few of which are electrically conducting.