Patent ID: 7861692

Claim:
A coupling arrangement for coupling a fuel injector to a fuel rail of a combustion engine, the coupling arrangement comprising: a fuel injector cup having a central longitudinal axis and being designed to be coupled to the fuel rail at a first axial end area and to a ring element at a second axial end area by a circlip, wherein the fuel injector cup comprises at least two slots being arranged at the second axial end area and at least two grooves of the fuel injector cup being arranged at least partly circumferentially the fuel injector cup and axially overlapping with the slots, the ring element being arranged at the central longitudinal axis facing the second axial end area of the fuel injector cup and being coupled to a housing of the fuel injector, wherein the ring element comprises at least two protrusions facing the fuel injector cup and the protrusions comprise at least two grooves of the ring element being arranged at least partly circumferentially the ring element in a common plane with the grooves of the fuel injector cup, and the circlip being arranged at least partly circumferentially the fuel injector cup at least partly in the grooves of the fuel injector cup and being arranged at least partly circumferentially the ring element at least partly in the grooves of the ring element.