Pressure-controlled injector for injecting fuel

摘要

An injector for injecting fuel into the combustion chambers of an internal combustion engine in which a movable control part is contained in the housing of the injector and is guided in this injector housing to unblock the inlet to an injection nozzle when a closing element relieves the pressure in a control chamber or closes the inlet when a pressure is built up in the control chamber. The nozzle needle of the injector is associated with a piston element which encourages the closing movement of the nozzle needle and counteracts its opening movement.