| 摘要 |
<p>The valve has control unit (8) with a valve slider (12), which delivers control forces (S1,S2), to produce switching movements in first (23) and second (24) switching directions and move the valve slider in different switching positions. The movements are assisted by a drive unit with a spring device. In the first switch movement, the slider is moved from a first switching position into an end switching position by an impact device fixed in the casing, in which it is held by the first control force. In the second switch direction, the slider is moved out of the first position by the second control force. At least one drive unit (43) has a spring device (44) to begin the first switch movement through the kinetic energy of the control unit. The spring force (FS) generates the second control force by hydraulically-generated operation forces (FB), to begin the second switching movement.</p> |
