| 摘要 |
A fuel injector, for internal combustion engines, having a nozzle needle supported in a nozzle body so as to be axially displaceable therein. The nozzle needle, which can be lifted off its valve seat by the pressure of fuel, has a throttling pin which, at least during part of its lift, projects below the valve seat into a bore centrally arranged in the nozzle body. The throttling pin has at least one control edge or flat portion which is shaped and oriented in such a way that the fuel spray direction and/or the fuel spray characteristic or pattern vary with the nozzle needle lift.
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