Patent ID: 6928985

Claim:
A common rail fuel injection device ( 10 ) for internal combustion engines ( 94 ), comprising a housing ( 12 ) with an injection end ( 18 ), a recess ( 20 ) extending in the housing ( 12 ), at least one axially movable valve element ( 24 ), which is disposed in the recess ( 20 ), cooperates with a valve seat, and which has a pressure face ( 36 ), remote from the injection end ( 18 ), that axially defines a control chamber ( 38 ), a sleeve part ( 40 ) that radially defines the control chamber, and at least one device ( 55 ) that urges the sleeve part ( 40 ) toward a first housing portion ( 16 ) and urges the valve element ( 24 ) in the direction of the injection end ( 18 ), the device ( 55 ) including separate prestressing devices ( 46 , 50 ), wherein one prestressing device ( 50 ) acts upon the valve element ( 24 ), and another prestressing device ( 46 ) acts upon the sleeve part ( 40 ).