Fuel injector for an internal combustion engine comprises a switching valve connected to a control plunger between a coupling chamber on the actuator side and the coupling chamber on the nozzle needle side

摘要

Fuel injector comprises a switching valve (31) connected to a control plunger (30) between a coupling chamber (28) on the actuator side and the coupling chamber (29) on the nozzle needle side. The switching valve switches depending on the lift of the control plunger. Preferred Features: The switching valve is formed by an axially guided control sleeve (35) which acts with a sealing edge (39) on an attachment (34) connected to a piston rod (32).