| 摘要 |
<p>The actuator has a control valve, an accumulator, and a return valve. The control valve is connected to the working cylinder, a storage vessel, and a pressure medium source. The back pressure valve (6) is located between the control valve (1) on one side, and the accumulator (7) and working cylinder (4) on the other side. It opens in a direction towards the control valve. A throttle (5) is switched parallel to the back pressure valve. The pressure in the accumulator is chosen, so that with simultaneous built-up of pressure in front of accumulator and cylinder, the movable cylinder part has travelled a certain distance, before the accumulator begins to fill.</p> |
