Patent ID: 7273185

Claim:
A device for injecting fuel into a combustion chamber ( 7 ) of an internal combustion engine, the device comprising a fuel injector ( 1 ), which can be acted upon with fuel at high pressure via a high-pressure source ( 2 ) and is actuatable via a metering valve ( 6 ), an injection valve member ( 34 ) surrounded by a pressure chamber ( 22 ), the injection valve member ( 34 ) being urged in the closing direction by a closing force, a damping element ( 29 ) associated with and movable independently of the injection valve member ( 34 ) the damping element ( 29 ) defining a damping chamber ( 28 ) and having at least one overflow conduit ( 30 , 45 ) for connecting the damping chamber ( 28 ) to a further hydraulic chamber ( 23 ), further comprising a second spring element ( 33 ) received in the further hydraulic chamber ( 23 ) and urging the injection valve member ( 34 ) in the closing direction and pressing it into its seat ( 40 ) at the combustion chamber.