| 摘要 |
<p>The mechanical actuator is aided by a pressure medium which is selectively fed to a cylinder, having two chambers. The system has an actuator, operated at random and a transmission section connected to the unit to be actuated. A pressure medium distributor is positioned between the two. The distributor has a slide housing with two control members, for the pressure medium feed to the cylinder chambers, and also to connect them to an exhaust unit in a neutral position. Each control member is moved against a control unit, which allows that movement only after a certain limit has been exceeded.</p> |
