| 摘要 |
<p>A control arrangement for use in a hydraulic control system including a control valve of the type having at least two movable elements (16,18), comprises the steps of : controlling the positions of the two movable elements (16,18) such that fluid from a common fluid pressure source is applied to both of the control surfaces of an actuator, the control surfaces being of different effective areas, to drive the actuator for movement.</p> |
