Nozzle assembly and fuel injection valve for a combustion engine

摘要

A nozzle assembly (3) for a fuel injection valve (1) and a fuel injection valve (1) for a combustion engine with the nozzle assembly (3) are disclosed. The nozzle assembly (3) comprises a valve body (7) with a central longitudinal axis (15), the valve body has a valve cavity (13) and a nozzle tip body (23). The nozzle tip body (23) limits a free volume of the valve cavity (13) and comprises a protrusion (31). The protrusion (31) extends from an end surface (33) of the nozzle tip body (23) in an extending direction parallel to a longitudinal axis (16) of the nozzle tip body (23) away from the valve cavity (13). The protrusion (31) comprises a first section (35) adjacent to the end surface (33), which has a cylindrical outer surface, and a second section (37) adjacent to the first section (35), which has an outer surface of decreasing diameter in the course away from the end surface (33) along the extending direction and which comprises at least one nozzle aperture (25).