Vehicle air-spring with pneumatic cushioning bellows fitted with electrical conductor

摘要

An air-spring has a roll-bellows made of elastomeric material with at least one fabric layer in the wall and at least one electric conductor on the inside wall. The conductor extends in the direction of the fibres in the fabric layer and runs spirally from one end of the bellows to the other. It returns in a second spiral with a 180 degree shift from the first. The conductor is a double wire splitting into two separate wires at each end. The separate wires run around the bellows opening in opposite directions, joining the second conductor. If there are several conductors, they are electrically in series.