Pre-mix nozzle and full ring fuel distribution system for a gas turbine combustor

An improved secondary fuel supply system comprising:

• an elongated housing having an inlet end and an outlet end;
• a sleeve affixed to said elongated housing;
• a plurality of support members affixed to said sleeve and extending radially outward therefrom;
• a premix fuel supply nozzle comprising an annular tubular manifold circumferentially disposed about and spaced away from said housing, said manifold affixed to said plurality of support members and having a plurality of fuel dispersion apertures situated about its periphery and facing a down stream direction for emitting fuel such that an air stream flowing around the outside of said premix nozzle mixes with said emitted fuel, at least one of said apertures being circumferentially offset from said support members;
• a central fuel distribution conduit having a fuel pilot tube attached thereto and in fluid communication therewith, said pilot tube containing at least one orifice;
• a premix pilot flame nozzle located proximate said outlet end of said elongated housing, said premix pilot flame nozzle separate from said premix fuel supply nozzle;
• a premix chamber surrounding said pilot tube for receiving fuel therefrom, said premix chamber connected to said pilot flame nozzle;
• a plurality of fuel transfer tubes situated within said elongated housing, wherein said fuel transfer tubes supply fuel to the outlet end of said elongated housing adjacent said pilot flame nozzle, said fuel transfer tubes surrounding said premix chamber, and
• a plurality of air flow channels situated within said elongated housing for providing air to said premix chamber for mixing with fuel from said pilot tube.