| 摘要 |
The invention relates to a compressed-air supply system (10) for operating a pneumatic system (90), said pneumatic system in particular comprising a reservoir (92) or similar compressed-air storage container and a number of bellows (93) or similar compressed-air chambers, the supply system having: - a compressed-air supply (1), to which a charging assembly (30) comprising a compressor (31) is connected on the compressed-air supply side; - a compressed-air connection (2) to the pneumatic system (90) and a bleed connection (3) to the environment; in addition to a pneumatic main line (60) between the compressed-air supply (1) and the compressed-air connection (2); and - a bleed line (70) between the compressed-air supply (1) and the bleed connection (3). According to the invention, a change-over valve (40) is associated with the compressed-air supply (1), the change-over valve (40) being designed to be controlled by compressed air such that the compressed-air supply (1) to the main line (60) via the change-over valve (40) is open independently of the pressure. By means of a flow pressure (p) at the compressed-air supply (1) that can be generated by the charging assembly (30) to the main line (60), in the non-pressurised state of said compressed-air supply (1) the compressed-air connection (2) to the bleed line (70) is fluidically connected, in particular an outlet connection (43) is to be opened, and in the pressurised state of the compressed-air supply (1), the compressed-air connection (2) to the bleed line (70) is not fluidically connected, in particular an outlet connection (43) is to be closed. |
