| 摘要 |
A valve arrangement in a hydraulic circuit comprises a longitudinal duct 3 and a transverse duct 2 . A throttle slide 10 can be displaced in the direction of the longitudinal duct 3 . Arranged in the throttle slide 10 is a valve piston 25 , by means of which the flow through the hollow throttle slide 10 can be enabled or blocked. The flow of hydraulic fluid takes place through two groups of passage holes 33 a, 35 a, which are arranged in the throttle slide 10 . The interaction of pressure and flow direction of the hydraulic fluid, and also the restoring force of a slide spring 20 and a piston spring 30 , achieves a situation where hydraulic fluid can flow through the valve arrangement in both directions but that a throttling action occurs only when the hydraulic fluid flows from the transfer duct 2 to the longitudinal duct 3 under increased pressure.
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