Patent ID: 6945479

Claim:
A stroke-controlled valve as a fuel metering device of an injection system for internal combustion engines, comprising a valve body ( 10 , 56 ) with a valve seat ( 33 , 72 ) a valve needle ( 26 , 65 ), actuatable in the valve body ( 10 , 56 ) counter to the resistance of a valve needle restoring spring ( 40 , 71 ), the valve needle having a sealing face cooperating with the valve seat, a coupling body ( 43 , 64 ) with a greater mass than the valve needle ( 26 , 65 ) disposed in the valve body ( 10 , 56 ), in the axial extension of the valve needle ( 26 , 65 ) and movable coaxially to the valve needle, the coupling body being actuatable by the valve needle during the opening stroke of the valve needle ( 26 , 65 ), wherein the coupling body ( 43 , 64 ) is disposed relative to the valve needle ( 26 , 65 ) such that it is not actuated by the valve needle ( 26 , 65 ) until after the valve needle has already executed a portion of its opening stroke motion.