Fuel injection nozzle with arrangement for measuring nozzle needle displacement

摘要

The nozzle needle is attached to a ferromagnetic press. bolt (4). A sensor system with a magnetic field stimulator (2) and a magnetic field sensor (1) is attached to the nozzle holder (7).The magnetic field stimulator can be attached to the nozzle holder.The magnetic field stimulator and sensor can be mounted inside a spring (8) chamber on the opposite side from the press. bolt. The press. bolt can have a ferromagnetic extension.