Fuel injection assembly
The present disclosure relates in general to injectors and, more specifically, to a fuel injection assembly that may be used in an internal combustion engine. In some embodiments, a fuel injection assembly may include: a fuel injector with a fuel inlet port and a fuel outlet end; and an injector cup with a recess receiving the fuel inlet port of the fuel injector through an opening of the recess. The injector cup comprises a collar extending circumferentially around the opening. The injector cup comprises a tab extending longitudinally beyond the opening in a direction towards the fuel outlet end. The tab projects axially beyond the collar in a longitudinal direction towards the fuel outlet end. The fuel injector comprises a pocket receiving the tab.
1. A fuel injection assembly having a longitudinal axis and comprising:
a fuel injector with a fuel inlet port and a fuel outlet end; and
an injector cup with a recess receiving the fuel inlet port of the fuel injector through an opening of the recess and a first end facing the fuel injector;
wherein the injector cup comprises an annular collar extending circumferentially around the opening at the first end to a primary diameter;
a tab extending radially outward from the annular collar beyond the primary diameter and including an extension bent to extend parallel to the longitudinal axis beyond the annular collar,
wherein no other portion of the injector cup extends beyond the annular collar towards the fuel outlet end; and
the fuel injector comprises a pocket receiving the tab;
wherein the fuel inlet port comprises a metallic tubular body of the fuel injector and the fuel injector comprises a plastic housing laterally surrounding the metallic tubular body with an electrical connector in the plastic housing; and
the pocket is defined in the plastic housing between the round collar and the electrical connector.
2. The fuel injection assembly of claim 1 , wherein the annular collar comprises an end surface of the injector cup, the end surface coplanar with the opening of the recess.
3. The fuel injection assembly of claim 1 , further comprising the pocket extending into the plastic housing from an opening of the pocket to a bottom surface of the pocket in a longitudinal direction towards the fuel outlet end of the fuel injector.
4. The fuel injection assembly of claim 3 , further comprising the tab inserted in the longitudinal direction into the pocket through the opening in such fashion that it is axially displaceable in reciprocating fashion relative to the pocket.
5. The fuel injection assembly of claim 1 , wherein the fuel injector comprises an electrical connector arranged subsequent to the pocket, in top view along the longitudinal axis, in a radial direction away from the metallic tubular body.
6. The fuel injection assembly of claim 1 , wherein the injector cup is a one-piece part including the tab.
7. The fuel injection assembly of claim 1 , further comprising a spring clip arranged and preloaded in longitudinal direction between a shoulder of the fuel injector and an end surface of the injector cup.