| 摘要 |
The invention relates to a fuel injector (10) for injecting fuel into the combustion chamber of an internal combustion engine. The fuel injector (10) comprises a substantially cylindrical injection valve member (18) which is arranged in a holding body (12). The injection valve member (18) has a guide surface (18a) in an end region, the guide surface (18a) being guided longitudinally movably in a guide bore (30) which is configured in a valve piece (22). The valve piece (22) is braced with the holding body (12). By way of the longitudinal movement thereof, the injection valve member (18) opens and closes injection openings (21) into the combustion chamber. The injection openings (21) are arranged adjacently with respect to that end of the injection valve member (18) which lies opposite the guide surface (18a). The guide surface (18a) has a convex shape in longitudinal section. |
