Turbine engine fuel injector with oxygen circuit

A system for an aerial vehicle, comprising:

• a splash plate comprising a splash plate surface;
• a fuel nozzle comprising a nozzle orifice, the fuel nozzle configured to direct fuel out of the nozzle orifice to impinge against the splash plate surface;
• a gas circuit including a gas passage and a gas outlet, at least a portion of the gas passage formed by and embedded within the splash plate, and the gas passage extending through the splash plate to the gas outlet;
• and
• a case wall extending axially along and circumferentially about an axial centerline;
• the gas circuit further including a supply passage formed by and embedded within the case wall, the supply passage extending circumferentially about the axial centerline, and the gas passage fluidly coupled with and downstream of the supply passage.