Patent ID: 6543235
Filing Date: 2003-04-08
Classification: F23C,F23D,F23R

Abstract:
A fuel injection apparatus for a gas turbine, comprising:a fuel injector; one and only one fuel supply circuit, communicated with the fuel injector; and the fuel injector having: air supply conduits defining a central air stream, a main air stream and a bifurcated recirculation zone separating the central air stream from the main air stream, the central air stream being axial so that there is no axial recirculation; and at least one fuel injection port communicated with the fuel supply circuit and oriented such that at fuel supply pressures within a low power operating range a majority of injected fuel is entrained in the central air stream, and at fuel supply pressures within a high power operating range a majority of injected fuel is entrained in the main air stream.