| 摘要 |
<p>An actuator unit comprises a tube spring (32), a piezoelectric actuator (31), that is inserted into the tube spring (32), a first cap (33), that is connected to the tube spring (32) at a first free end of the tube spring (32) and which is adjoined by the piezoelectric actuator (31), a tube-shaped body 38, that is connected to the tube spring (32) by joining and is arranged in the area of a second free end (35) of the tube spring (32), and a means for pretensioning, that is supported by the tube-shaped body (38) and pretensions the piezoelectric actuator (31). The actuator unit is simple and cheap to manufacture.</p> |
