Control valve assembly for a fuel injector, the control valve assembly comprising a cylindrical body and, an armature-spool assembly adapted to translate within the body, the body extending from a first, or upper, face to an opposed second, or lower, face, and being provided with a large recess opening in the first face and also with, a hydraulic distribution bore extending in the body along a main axis from the bottom face of the recess, a fixed valve seat being provided around the opening of the bore in said bottom face of the recess, the body being further provided with a hydraulic outlet conduit (102, 104) extending through the body and opening in the hydraulic bore and also with, a return conduit (102, 106) extending from the large recess, the armature-spool assembly comprising a disc shape magnetic armature having an upper face opposed to an under face and, a stem, forming valve spool, fixed to the armature and perpendicularly extending from its under face, the armature-spool assembly being further provided with a spool seat arranged in the vicinity of the under face the armature, the armature-spool assembly being arranged in the body, the spool being slidably adjusted in the hydraulic bore and the armature being moveable in the recess, said assembly being able to translate between a closed position where the spool seat is in sealing contact against the fixed valve seat and, an open position where the spool seat is lifted away from the fixed valve seat enabling, in use, fuel to flow to enter in the recess, characterized in that the control valve assembly is further provided with a deflector arranged in the recess, between the armature and the bottom face of the recess, the deflector being adapted to deflect away from the under face of the armature the flow of fuel entering the recess when the valve is in open position so that, the displacements of the armature-spool assembly are not disturbed by said entering flow and, the deflector comprises a deflector face, or bottom face, provided with a central opening, said deflector face being arranged transverse to the valve axis, and being pushed toward the bottom face of the recess by a pusher feature (70, 116) while being maintained at a distance of the bottom face of the recess by a spacer feature (74, 112) and, the pusher feature (70, 116) is a cylindrical wall integral to the deflector face and erecting from the periphery of said deflector face to an upward circular edge, said cylindrical wall outwardly protruding from the recess above the level of first face of the body so that, when the control valve assembly is arranged in a fuel injector, another part of the body of the injector that comes in surface contact with the first face of the valve body downwardly biases the deflector and wherein, the spacer feature is arranged between the deflector face of the deflector and the bottom face of the recess and it has resilient characteristics so that, said spacer feature always biases the deflector face away from the bottom face of the recess and wherein, said spacer feature is provided by partially cutting said bottom face to form tongues that are outwardly bent around a non-cut edge, said bending providing resilient characteristics to the tongue. the control valve assembly is further provided with a deflector arranged in the recess, between the armature and the bottom face of the recess, the deflector being adapted to deflect away from the under face of the armature the flow of fuel entering the recess when the valve is in open position so that, the displacements of the armature-spool assembly are not disturbed by said entering flow and, the deflector comprises a deflector face, or bottom face, provided with a central opening, said deflector face being arranged transverse to the valve axis, and being pushed toward the bottom face of the recess by a pusher feature (70, 116) while being maintained at a distance of the bottom face of the recess by a spacer feature (74, 112) and, the pusher feature (70, 116) is a cylindrical wall integral to the deflector face and erecting from the periphery of said deflector face to an upward circular edge, said cylindrical wall outwardly protruding from the recess above the level of first face of the body so that, when the control valve assembly is arranged in a fuel injector, another part of the body of the injector that comes in surface contact with the first face of the valve body downwardly biases the deflector and wherein, the spacer feature is arranged between the deflector face of the deflector and the bottom face of the recess and it has resilient characteristics so that, said spacer feature always biases the deflector face away from the bottom face of the recess and wherein, said spacer feature is provided by partially cutting said bottom face to form tongues that are outwardly bent around a non-cut edge, said bending providing resilient characteristics to the tongue.