The invention relates to a valve needle for a high-pressure fuel injector, comprising a needle body (12) with a cylindrical upper portion (16), the needle body (12) having an end part provided with a plunger (22) for closing a metering opening, and an elon...

The invention relates to a valve needle for a high-pressure injector for a fuel injection system, in which axial movement of the valve needle in a valve seat controls opening and closing a metering opening of the injector, comprising an needle body (12) wi...

The nozzle has a control chamber (28) to pressure-charge a nozzle needle (22). A bore is formed in the pressure-charged end of the nozzle needle away from the injection aperture, to connect the control chamber and/or a working chamber of the nozzle, to a l...