Patent ID: 8387390

Claim:
A system, comprising: a combustion liner disposed with a combustor housing, the combustor liner including an outer casing comprising a plurality of openings formed along a length and configured as compressed air inlets, an inner casing having a closed rear end and a combustion outlet, and an air circulation path extending between and along the inner and outer casings; and an injection mechanism disposed in the combustion liner, comprising: at least one fuel-air injection mechanism comprising a fuel injector extending through the air circulation path, the fuel injector having a fuel passage leading to a fuel injection opening and an air injection assembly leading to an air passage and an air injection opening, wherein the fuel injection opening and the air injection opening are disposed at an off-center position to inject fuel and air toward the closed rear end in a direction counterflow to a generally lengthwise downstream flow of combustion products in an axial gas turbine combustor.