Fuel injector valve for combustion engines

Fuel injection valve for internal combustion engines with a housing (1), in which an injection needle (12) is arranged longitudinally displaceable for opening and closing an injection opening (15), which with its end face facing away from the injection openings (15) delimits a control chamber (20). In the control chamber (20), a variable pressure is adjustable by means of a control device (18), wherein the control device (18) has an actuator (31) which can exert a longitudinal force on a pressure pin (30), wherein the pressure pin (30) with its end face facing away from the actuator (31) rests against a longitudinally movable coupler piston (22). The coupler piston (22) delimits with one of its end faces a valve chamber (24) hydraulically connected to the control chamber (20). The pressure pin (30) has at the end face resting against the coupler piston a recess (32; 35) which is connected to a low-pressure chamber (9).