Fuel injection valve for fuel injection systems of internal combustion engines, has injection orifice that is provided on inner side of dome of valve sleeve with groove-like recessed inflow region configured to allow one-way flow

摘要

The fuel injection valve has a valve closing (7) which is axially movable along the valve longitudinal axis (2). The downstream of the valve seat (15) is arranged with injection orifice (14). A fuel injection valve is provided with a valve sleeve (1) which is provided at downstream end with a dome (20) in which the injection orifices are directly introduced. The injection orifice is provided on the inner side of the dome of the valve sleeve with a groove-like or channel-like recessed inflow region configured to allow a one-way flow towards the injection orifice.