Injection valve for internal-combustion engine of vehicle, has plate located at closing head of valve body, and projecting into boundary layer of fuel flow of spraying cone to generate gaps in spraying cone

摘要

The valve has a valve body (11) with a valve opening (14) and a valve needle (12). The needle includes a valve seat (15) that cooperates with a splashing head flange (18) to form a fuel splashing opening (16). A plate (20) is located at a closing head (13) of the body, and projects to a length of about 5-10 millimeter into a boundary layer of the fuel flow of a spraying cone to generate gaps in the spraying cone.