Fuel injector with splash plate for an engine

1. An assembly for an engine, comprising:

an engine structure comprising an injector receptacle and a fuel supply passage, the injector receptacle extending longitudinally through the engine structure along a centerline, the injector receptacle comprising an injector aperture and a protrusion aperture, and the fuel supply passage extending laterally within the engine structure to the injector aperture; and

a fuel injector mated with the injector receptacle, the fuel injector comprising a nozzle passage, a nozzle orifice, a base and a protrusion, the nozzle passage extending longitudinally along the centerline within the fuel injector to the nozzle orifice, the nozzle passage fluidly coupled with the fuel supply passage, the base extending longitudinally along the centerline in the injector aperture, the protrusion formed integral with the base, and the protrusion projecting laterally out from the base into the protrusion aperture;

the fuel injector configured to translate longitudinally along the centerline when being inserted into the injector receptacle;

wherein the protrusion aperture is a first protrusion aperture, and the infector receptacle further comprises a second protrusion aperture;

wherein the protrusion is a first protrusion, and the fuel injector further comprises a second protrusion; and

wherein the second protrusion is formed integral with the base, and the second protrusion projects laterally out from the base into the second protrusion aperture.

2. The assembly of claim 1 , wherein

the fuel injector comprises a splash plate; and

the fuel injector is configured to receive fuel from the fuel supply passage within the nozzle passage, and direct the fuel out of the nozzle passage through the nozzle orifice to impinge against the splash plate.

3. The assembly of claim 1 , wherein

the fuel injector further comprises a head connected to the base; and

the head is abutted longitudinally against a surface of the engine structure.

4. The assembly of claim 1 , wherein the first protrusion and the second protrusion are longitudinally aligned along the centerline.

5. An assembly for an engine, comprising:

an engine structure comprising an injector receptacle, the injector receptacle extending longitudinally through the engine structure along a centerline;

a fuel injector received by the injector receptacle, the fuel injector including a fuel nozzle and a splash plate, and the fuel nozzle configured to direct fuel out of the fuel injector to impinge against the splash plate; and

a fastener projecting laterally through a sidewall of the engine structure into the fuel injector to secure the fuel injector to the engine structure;

wherein the engine structure further comprises a fuel supply passage extending laterally within the engine structure to the injector receptacle;

wherein the fuel injector comprises a nozzle passage and a nozzle orifice in the fuel nozzle, the nozzle passage extends longitudinally along the centerline within the fuel injector to the nozzle orifice, and the nozzle passage is fluidly coupled with the fuel supply passage;

wherein the injector receptacle extends longitudinally through the engine structure along the centerline between a first end and a second end; and

wherein the fuel supply passage extends laterally within the engine structure to an intermediate region of the injector receptacle located longitudinally along the centerline between the first end and the second end.

6. The assembly of claim 5 , wherein

the splash plate comprises a planar splash plate surface; and

the fuel nozzle is configured to direct the fuel out of the fuel injector to impinge against the planar splash plate surface.

7. The assembly of claim 5 , wherein

the fuel nozzle is configured to direct the fuel out of the fuel injector along a trajectory to impinge against a surface of the splash plate; and

the surface of the splash plate is angularly offset from the trajectory by an obtuse angle.

8. The assembly of claim 5 , wherein the fuel injector is configured to be installed with or removed from the engine structure completely from an exterior of the engine structure.

9. The assembly of claim 5 , wherein the fuel injector is configured to translate longitudinally along, without rotation about, the centerline when received by the injector receptacle.

10. The assembly of claim 5 , wherein

the fuel injector includes a base and a head connected to the base;

the base projects longitudinally along the centerline into the injector receptacle; and

the head is abutted longitudinally against a surface of the engine structure.

11. The assembly of claim 10 , wherein the fuel injector further includes a protrusion projecting laterally out from the base into an aperture in the engine structure.

12. The assembly of claim 1 , wherein the fuel injector further includes a fuel coupler within the injector receptacle adjacent the fuel supply passage, and the fuel coupler is configured to fluidly couple the fuel supply passage with the nozzle passage.

13. The assembly of claim 12 , wherein

the fuel coupler includes a tubular sidewall and a chamber within the tubular sidewall;

a port extends laterally through the tubular sidewall, and the port is at least partially aligned with an orifice to the fuel supply passage; and

the chamber is fluidly coupled with and between the port and the nozzle passage.

14. The assembly of claim 5 , wherein

the engine comprises a gas turbine engine; and

the engine structure is configured as a case of the gas turbine engine.