Piezo electric actuating device for fuel injection device for motor vehicles, has transmission element with chamfer or rounding and chamfer of rounding is formed along outer edge of surface finish of transmission element

摘要

The piezo electric actuating device (1) has a transmission element (19) with chamfer or rounding (194). The chamfer of rounding is formed along an outer edge (193) of the surface finish (191) of the transmission element. The chamfer or rounding has a breadth (C) in a range of 0.1 to 0.8 millimeter. The breadth is formed as a distance between an outer edge of the surface finish and an outer edge (195) of the chamfer or rounding in a direction parallel to the surface finish. The transmission element is formed from aluminum oxide.