Closed pneumatic system for controlling a car chassis has several pneumatic spring devices connected to high and low pressure systems via an inline arrangement of valve devices to trigger the spring devices

摘要

Pneumatic springs (5-8) each have a cylinder (10) in which a piston (11) moves to and fro for limiting the cylinder's working space (12). These are linked to 3/3-way valves (15-18) via a first high-pressure line (13). Each spring is operated by two electromagnets (19,21), the 3/3-way valves are held by two springs (20,22) when inoperative. A second high-pressure line (24) and a low-pressure line (25) also link to a 3/3-way valve (15). An inlet (27) for a compressor (28) links to a low-pressure line system (2). An outlet (29) for the compressor links to a high-pressure line system (1).