Patent ID: 6994272

Claim:
In an injector for high-pressure injection of fuel in self-igniting internal combustion engines, comprising an actuator valve for opening and closing the injector, a nozzle needle ( 17 ), which in the closed state of the injector closes at least one injection opening ( 18 ), a metering valve ( 4 ), which establishes a hydraulic communication between the actuator valve and a relief chamber ( 6 ) of the injector, a pressure holding device ( 33 ), which serves to maintain a static pressure required for the metering valve ( 4 ), and a first control quantity line ( 29 ) for control quantities ( 34 ) which flow via the actuator valve, and a second control quantity line ( 43 ) for control quantities ( 35 ) that flow via the metering valve ( 4 ), the improvement wherein that the pressure holding device ( 33 ) dynamically separates the control quantities ( 35 ) of the metering valve ( 4 ) from the control quantities ( 34 ) of the actuator valve and acts as a hydraulic fluctuation damper.