Abstract: A fuel injector, for example, for direct injection of fuel into a combustion chamber of an internal combustion engine, having a valve-closure member, which forms a sealing seat together with a valve-seat surface constructed on a valve-seat member, and having a swirl disk with fuel passages, the swirl disk being constructed from a plurality of swirl elements, each of the swirl elements having the same number of fuel passages. The swirl elements are offset with respect to one another, so that the fuel passages at least partially overlap.

Abstract: A fuel injector for fuel-injection systems of internal combustion engines includes a magnetic coil; a valve needle that is in operative connection with the magnetic coil and acted upon by a restoring spring in a closing direction, in order to actuate a valve-closure member which, together with a valve-seat face formed at a valve-seat member, forms a sealing seat; and a spray-orifice plate situated downstream from the valve-seat member. The spray-orifice plate has a dome-shaped curved design in a flow direction of the fuel.

Abstract: A fuel injector (1), in particular for direct injection of fuel into a combustion chamber of an internal combustion engine, having a valve-closure member (4) which, together with a valve-seat surface (6) constructed on a valve-seat member (5), forms a sealing seat, and having a swirl disk (34) having fuel passages (35), the swirl disk (34) being constructed from a plurality of swirl elements (36), each of the swirl elements having the same number of fuel passages (35). The swirl elements (36) are offset with respect to one another in such a way that the fuel passages (35) at least partially overlap.

Abstract: The present invention relates to a fuel injector for fuel injection systems of internal combustion engines, including, among others, an actuator (10, 11, 12) and a movable valve part (5, 7) cooperating with a fixed valve-seat (22) formed at a valve-seat member (16), to open and close the valve. Arranged downstream from the valve seat (22) is a disk-shaped swirl element (25) which is provided with at least one inlet region (27) and also at least one outlet opening (29), and which includes at least one swirl channel (28) upstream from the outlet opening (29). The inlet region (27) in the swirl element (25) receives a central inflow. All swirl channels (28) originate from here, so that the fuel, which flows through the swirl channels (28) exclusively from the inside towards the outside in the radial direction, is imparted with a swirl component.