| 摘要 |
A piezoelectric actuator (2) for a fuel injection valve (1) has an actuator body (24) with a multiplicity of ceramic layers (26A - 26D) and a multiplicity of electrode layers (27A - 27C) which are arranged between the ceramic layers (26A - 26D). In this case, an external electrode (30) is provided which is connected to some of the electrode layers (27A, 27C). The external electrode (30) has a plurality of longitudinal wires (39A - 39C), which run in the longitudinal direction (38) of the actuator body (24), and a plurality of weft wires (37A - 37E), wherein a weft wire (37A - 37E) is passed through the longitudinal wires (39A - 39C) in such a way that some of the longitudinal wires (39A - 39C) run above the weft wire (37A - 37E) and other longitudinal wires (39A - 39C) run beneath the weft wire (37A - 37E). |
