| 摘要 |
A fuel injection valve contains a piston-shaped valve needle for closing at least one injection opening at the combustion chamber end of the bore. A conical valve seat at the combustion chamber end of the bore is contacted in the closed position of the valve needle by a valve sealing surface on the of valve needle in order to seal the at least one injection opening. The valve sealing surface includes a first conical surface and a second conical surface and the valve seat contains a first annular groove, which extends in a radial plane of the valve bore, and a second annular groove, which is disposed downstream of and parallel to this first annular groove.
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