PIEZOACTUATOR MODULE AND PIEZO INJECTOR

The invention relates to a piezoelectric actuator module (10) comprising an actuator foot (16), an actuator head (18), and a piezoelectric actuator (20) arranged between the actuator foot (16) and the actuator head (18), the piezoelectric actuator (20) consisting of a plurality of electrode layers (21, 22), wherein the piezoelectric actuator (20) adjoins the actuator foot (16) with respect to a longitudinal axis (11) of the piezoelectric actuator module (10), and wherein contact means (31, 32) are provided which are guided through the actuator foot (16) and rigidly connected to contact surfaces (33) of the piezoelectric actuator (20) arranged at a distance (a) from the actuator foot (16). According to the invention, it is provided that the contact surfaces (33) are arranged to be movable in the region of the contact means (31, 32) connected to them.