Method for manufacturing piezoelectric actuator for piezo injector of fuel injection system for self-ignition engine operated with diesel, involves arranging inner electrodes between contacts of tensile region

摘要

The method involves arranging inner electrodes (3) between multilayer structures of piezoelectric layers (1). A mutual contact is provided between the inner electrodes through outer electrodes (2), where electric voltage is applied through the outer electrodes. A net or fabric-like layer is applied on a side surface of the outer electrodes. The inner electrodes are arranging between contacts of a tensile region of the outer electrodes, where a piezoelectric actuator is lengthened before and/or during contacting.