Abstract: A fuel injector for fuel-injection systems of internal combustion engines which includes an elongated, axially running, thin-walled, non-magnetic sleeve. At its downstream end, the sleeve has a bottom section, which runs substantially normal to the otherwise axial extent of the sleeve along a longitudinal valve axis. A valve needle, which is securely joined to an armature and a valve-closure member, can move axially within a feed-through opening of the sleeve. The valve-closure member cooperates with a valve-seat surface provided on a valve-seat body, the valve-seat body being pressed into the sleeve and likewise abutting, for example, on the bottom section of the sleeve. The sleeve constituted as a drawn sheet-metal part extends axially over more than half of the axial length of the fuel injector. The fuel injector is suited for applications in fuel-injection systems of mixture-compressing internal combustion engines having externally supplied ignition.

Abstract: The invention relates to a fuel injector for fuel-injection systems of internal combustion engines, in which is provided an elongated, axially running, thin-walled, non-magnetic sleeve (12). At its downstream end, the sleeve (12) has a bottom section (20), which runs substantially normal to the otherwise axial extent of the sleeve (12) along a longitudinal valve axis (10). A valve needle (28), which is securely joined to an armature (24) and a valve-closure member (30), can move axially within a feed-through opening (21) of the sleeve (12). The valve-closure member (30) cooperates with a valve-seat surface (35) provided on a valve-seat body (25), the valve-seat body (25) being pressed into the sleeve (12) and likewise abutting, for example, on the bottom section (20) of the sleeve (12). The sleeve (12) constituted as a drawn sheet-metal part extends axially over more than half of the axial length of the fuel injector.

Abstract: In a valve, the number of components of the valve pipe is reduced, so that the number of joints and connecting points is also reduced,. The entire valve pipe is manufactured from magnetically conductive material, so that one can dispense with non-magnetic adapters. The valve is especially suited for use in fuel-injection systems of mixture-compressing internal-combustion engines having externally supplied ignition.