| 摘要 |
Arranged in a hydraulic circuit is a valve with an L-shaped duct arrangement, which is formed by a transverse duct 2 and a longitudinal duct 3 . Formed in extension of the longitudinal duct 3 is a holding and guiding bore 4 , in which a throttling element, comprising a throttle slide 10 and a valve piston 21 that can be displaced therein, can be displaced longitudinally. The valve piston 21 has a passage hole 25 , which is connected to the interior of the throttling element and two proportionate annular chambers 17 a and 17 b. Of these, the proportionate annular chamber 17 b is connected to a pilot control valve via a control duct 19 . Depending on the direction and pressure of the hydraulic fluid flowing through the L-shaped duct arrangement, the throttling element is moved in or out and extended or compressed in the process. In this way, the valve arrangement acts as a throttling valve in the event of flow in the direction from the transverse duct 2 to the longitudinal duct 3 , while the flow in the opposite flow direction is not throttled.
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