Injector device, for automotive vehicle internal combustion engine fuel injection system, has sealing between the injector needle and injector body

摘要

The fuel injector includes injection orifices (12), an injector needle (4) movably mounted in the injector body (2) and serving to free or block the injection orifice as a function of the position of the injector needle. A leakage preventing sealing stop, or a sealing surface, surrounds, and is located between the injector needle and body of the injector when the injector is in the closed state. There is a unit to slidingly guide and movably mount the injector needle, and a pressure rod (14) serving to transmit the adjustment forces of the actuator of the fuel injection needle.