Immersed injector having compact premixing bodies

A combustor comprising:

• a combustion liner defining a combustion chamber;
• a fuel injector defining a mutually orthogonal coordinate system that includes a longitudinal direction, a transverse direction, and a vertical direction, the fuel injector comprising:
• a premix injector defining one or more premix passages fluidly connected to the combustion chamber, the premix injector including a fuel supply portion for providing fuel to the one or more premix passages and defining one or more air apertures for providing air to the one or more premix passages;
• and
• an immersed injector coupled to the premix injector and extending into the combustion chamber, the immersed injector defining an air chamber and including:
• an immersed body having a leading edge, a trailing edge, a first side wall, and a second side wall;
• a fuel supply conduit defining a fuel supply passage;
• and
• a compact premixing body extending between the fuel supply conduit and the immersed body, wherein the compact premixing body defines one or more compact premixing chambers fluidly connected to the fuel supply passage, the air chamber, and the combustion chamber, wherein at least one compact premixing chamber extends to an outlet at one of the first side wall or the second side wall.

An immersed injector comprises:

• an immersed body defining an air chamber, the immersed body having a leading edge, a trailing edge, a first side wall, and a second side wall;
• a fuel supply conduit defining a fuel supply passage;
• and
• a compact premixing body extending between the fuel supply conduit and the immersed body, wherein the compact premixing body defines one or more compact premixing chambers fluidly connected to the fuel supply passage and the air chamber, wherein at least one compact premixing chamber extends to an outlet at one of the first side wall or the second side wall.