| 摘要 |
Two sides (1a,1b) of a hydraulic piston (1) are connected by servo lines (13a,13b) through pressure regulators (4a,4b) and an electromagnetic servo-valve (2) either to a control pressure line (12) from a separate pump (PS) or to a tank (T). To reduce the pressure and throughput demands on the servo-valve, additional direct drainage lines (14a,14b) are provided from the servo lines via non-return valves (10a,10b) and a single pressure-limiting valve (11) to the tank. The servomotor can be operated in four-quadrant mode and/or in a closed loop. |
