An electromagnetically actuated fuel injection device for an internal combustion engine.

摘要

The subject of the invention relates to a fuel injection device comprising a pilot valve (19) which is adapted to control the passage of fuel through a discharge aperture (20) which communicates with a control chamber (9). Fuel is supplied under pressure into this control chamber (9) and is discharged through the discharge aperture (20) to control the opening of a shutter needle (6) for the purpose of injecting a suitable quantity of fuel through at least one injection orifice (4). The top of a valve body (14) is delimited by a flat surface (14a) into which the discharge aperture (20) opens and a threaded ring (8) presses onto the flat surface (14a) in such a way as to fix the valve body (14) to the body (1) of the fuel injection device.