| 摘要 |
The user units (18,22) are arranged in series in the hydraulic circuit and parallel to at least one second user unit in a channel (38) bridging over it is a threshold pressure valve (40), which is controllable by a pressure applied to a first user unit so that with a predetermined first threshold pressure at the first user unit the threshold pressure valve opens the over-bridging channel. The first user is a servo-steering nit with a current regulator (24) pre-connected in series. The second user unit is a fan hydraulic motor for a fan (20) of a cooling circuit. The hydraulic circuit is fitted in a road vehicle and the hydraulic pump is driven from an internal combustion engine.
|
