Patent ID: 6817600
Filing Date: 2004-11-16
Classification: B60G

Abstract:
An air spring system of a motor vehicle, comprisingan air compressor (8) for taking in air from the atmosphere (21) via an intake line (23) and compressing the air, a dryer (11) arranged downstream of the compressor (8) for dehumidifying the air compressed in the compressor (8), a storage (6) in communication with the compressor (8) by a pressure line (7) for storing the dried compressed air supplied by the compressor (8), level control valves (4) for controlling the flow of compressed air to, and from, individual vehicle wheel air springs (41), said air springs (41) being connected to said pressure line (7) by way of said level control valves (4) a vent line including a shutoff valve (13) by means of which the pressure line (7) can be connected to atmosphere in such a manner that this connection can be blocked off by the shutoff switching valve (13), a throttle (16) with a variable flow cross section arranged in a section (14) of the pressure line between the dryer and the level control valves for throttling the air released from the pressure line (7) before it is conducted back through the dryer (11) for reconditioning the dryer (11), a non-return valve (15) arranged in parallel with the variable flow cross-section throttle valve (16) and an electromagnetically actuable switching valve (17) arranged in the section (14) of the pressure line (7) in parallel with the variable flow cross-section throttle (11) and the non-return valve (15) for rapidly releasing air from the pressure line (7) when rapid lowering of the motor vehicle is necessary.