| 摘要 |
<p>The device has a control element (7) for controlling a pilot valve (6) and movable between a closing position and an open position under effect of a solenoid (4). The valve and the element are integrated in a tubular valve body (5) to form a variable section that ensures a water-tight sealing based on progressive variation of operating current of the solenoid and a hydraulic fluid flow between an inlet (01) and outlet (02). Pressure losses of the fluid flow are reduced in a working state of the valve such that a lowering rate of loads is kept low at relatively high speed.</p> |
