| 摘要 |
The invention relates to a piezo-electric actuator (1), which is used in particular as an actuator for fuel injection valves, comprising an actuator body (3), which has a plurality of ceramic layers (4) and a plurality of electrode layers (5, 6) arranged between the ceramic layers (4), and outside electrodes (7, 8), which are alternately in electrical contact with the electrode layers (5, 6). The outside electrodes (7, 8) are formed of corrugated metal sheets (7, 8), which preferably have corrugations (16, 17) that are arranged obliquely with respect to the longitudinal axis (10) of the actuator body. |
