Patent ID: 6354520
Filing Date: 2002-03-12
Classification: F02M

Abstract:
Fuel injection valve with a nozzle body which has a guiding portion at a held end, with a central guiding bore which has a bore mouth at the held end of the guiding portion, a pressure chamber portion which adjoins the guiding portion and has a pressure chamber into which the guiding bore leads, and a fuel inlet passage which is disposed laterally of the guiding bore, the fuel inlet passage having at the end of the guiding portion a fuel delivery orifice, characterized in that,the guiding portion is graded by a step into an upper body section with an end face and a lower body section with a shoulder surface, that the lower body section is disposed closer to the pressure chamber portion than the upper body section, that the upper body section has a smaller diameter than the lower body section, and that the fuel delivery orifice is situated in the shoulder surface, and the bore mouth in the end face.