| 摘要 |
<p>The pressure-dependent release unit is for the control slide of a path valve having blocking elements, which are pressed by a cam into locking recesses. A spring-loaded pre-control valve charges a piston, to displace the cam against a spring, to cause the blocking elements to release the slide. The valve seat for the pre-control valve is formed on an insert, located in a longitudinal bore of the control slide. The seat controls a feed, formed in the insert, to a pressure chamber. A pressure piston acting on the cam is held sealed and sliding in the pressure chamber.</p> |
