FUEL INJECTION VALVE

摘要

The invention relates to a fuel injection valve (1) for fuel injection systems of internal combustion engines. Said fuel injection valve comprises a valve needle (3) and a valve closing body (4), which is interactively connected to the valve needle and which interacts with a valve seat surface (6) inside a valve seat body (5) in order to effect a tight seat. At least one turbulence channel (32) having a tangential component with regard to the longitudinal axis (33) of the fuel injection valve (1) is situated upstream from the tight seat. An axial channel (35) having an axial component with regard to the longitudinal axis (33) of the fuel injection valve (1) is provided between the valve closing body (4) and the guide recess (34) of the valve seat body (5). The axial channel (35) is provided between the guide recess (34) and at least one flattening (37) on the valve needle (3).