The present invention relates to a piezo actuator (10) in multilayer design, in which piezoelectric layers (14) and electrode layers (12) are arranged alternately one above the other to form a stack (16). Several of the electrode layers (12) are electrical...

A piezoelectric actuator (28) comprises a stack body (30) including a plurality of piezoelectric elements (32), each element having a positive and negative electrode pair (40a, 40b) which are electrically isolated from one another by the piezoelectric elem...