| 摘要 |
The invention relates to a piezoelectric actuator (100) for a fuel injector, comprising a piezoelement (120) which can be deflected along the longitudinal axis in the longitudinal direction of the fuel injector, and a separating wall (150) for protecting the piezoelement (120) from an overflow of a medium from the fuel-guiding part of the fuel injector, said piezoelement (120) being preconstrained in the axial direction and the preconstraint is carried out by the separating wall (150). |
