Patent ID: 8464537

Claim:
A nozzle for a combustor, the nozzle comprising: a center body; a burner tube provided around the center body and defining a fuel-air mixing passage therebetween; an outer peripheral wall provided around the burner tube and defining an air flow passage therebetween; a nozzle tip connected to the center body, the nozzle tip comprising: a pilot fuel passage configured to deliver a flow of pilot fuel to a combustion zone; and a plurality of transfer passages radially outboard of the pilot fuel passage, the plurality of transfer passages configured to deliver a flow of air for combustion with the flow of pilot fuel in the combustion zone and further configured to deliver a flow of transfer fuel to the combustion zone; and at least one swirl vane disposed in the fuel-air mixing passage, the swirl vane defining a cooling chamber configured to receive fuel from a premix fuel passage, and wherein the fuel flows from the premix fuel passage through a reverse flow passage into the cooling chamber.