Clamping element for a fuel injection valve and fuel injection system

摘要

A clamping element for a fuel injector (18) that is insertable into a mounting hole of a cylinder head (26) of an internal combustion engine and directly injects fuel into a combustion chamber of the internal combustion engine has a first step ring (19). This at least partially surrounds the fuel injector (18) and has a valve pressure surface (20) that may rest on the fuel injector (18). The first step ring (19) has at least one circumferential slope surface (21) on its side facing away from the valve pressure surface (20), which engages with a corresponding circumferential slope surface (24) of a second step ring (22), which has a counterpressure surface (23). The slope surfaces (21, 24) are arranged so that the first step ring (19) and the second step ring (22) are pressed axially apart when they are rotated relatively to one another.