| 摘要 |
A fuel injector, in particular for direct injection of fuel into the combustion chamber of a mixture-compressing, spark-ignited internal combustion engine, comprises an armature that coacts with a magnet coil, and comprises a valve needle, joined to the armature, on which is provided a valve-closure member that, together with a valve seat surface, forms a sealing seat. The valve needle has, downstream from the armature, a clamping sleeve whose axial position on the valve needle determines the height of a pre-stroke gap configured between the armature and an engaging flange that is joined nonpositively to the valve needle, the clamping sleeve being of tubular configuration and having a slit extending in the axial direction.
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