An injector for the injection of fuel in diesel motors by means of the system "common-rail" that avoids the possibility of leak of fuel because of the waste, long term, of the seat of the needle of the injector. The rotary valve of the injector is actuated...

The moving components of the injectors are controlled by a stepper motor (1) which in its turn responds to pulses coming from the Electronic Control Unit (ECU) (2). To achieve more cycles for each revolution of the high-pressure supply pump, the pump has t...