Einspritzventil für luftverdichtende Brennkraftmaschinen

摘要

The injection valve comprises a nozzle body in which is an axially movable valve hollow needle, a full needle centrally guided in the hollow needle and likewise axially movable, whereby the vale hollow needle is held by a first pressure spring in the closed position and the full needle is held by a second pressure spring in the rest position. A number of first injection holes (4) can be cut off by the seat of the valve hollow needle and at the point of the nozzle body (1) a displacement chamber (8) is provided. This displacement chamber communicates with at least one second injection hole (12) which is not covered by the hollow needle (2). The full needle is formed as a displacement needle (6).