Fuel injection valve for internal combustion engine, has valve pin connected to slave piston of hydraulic coupler to form form-fitted unit

摘要

The valve has a piezoelectric or magnetostrictive actuator (2) which operates a valve closing body on a valve pin (11). The valve pin is connected to a slave piston (10) of a hydraulic coupler (5) to form a form-fitted unit. The valve pin is connected to the slave piston via a press-fit connection or a welded seam. The master piston of the hydraulic coupler is can-shaped.