| 摘要 |
<p>A sliding sleeve (18-20) is axially movable on its lengthwise axis and is positioned on a fixed sleeve immovably joined to a shaft. A sliding device (15-20) axially moving the sliding sleeve is operated by an actuator (21-23) which is connected to the sliding device by means of at least one link (30,31;34,35), the actuator has a longitudinally movable actuator piston (27-29)</p> |
