Fuel injector and corresponding production method

摘要

A fuel injector (1) for fuel injection systems of internal combustion engines and a method of manufacturing same are described. The fuel injector (1) includes a valve seat body (5) into which a valve seat face (6) is introduced, which cooperates with a valve closing body (4) to form a sealing seat, and a nozzle body (2) to which the valve seat body (5) is fixedly connected. The valve seat body (5) is insertable into the interior of the nozzle body (2) and on its downstream side it has a partially spherical outside geometry, which rests on a bearing surface (40) of a seat body recess (38) in the nozzle body (2). Valve seat body (5) is mounted so it can rotate relative to the nozzle body (2) on the bearing surface (40) until its position is finally secured, and it may be aligned by a centering mandrel.