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In a gas turbine having a compressor, a combustor and a turbine, a gaseous fuel supply coupled to provide gaseous fuel to the combustor, a liquid fuel supply coupled to provide liquid fuel to the combustor via nozzle assembly. The nozzle assembly includes a plurality of passageways for flowing a flu

In a gas turbine having a compressor, a combustor and a turbine, a gaseous fuel supply coupled to provide gaseous fuel to the combustor, a liquid fuel supply coupled to provide liquid fuel to the combustor via nozzle assembly. The nozzle assembly includes a plurality of passageways for flowing a fluid into the combustor, one of the passageways being a fuel passageway conduit interconnect the fuel passageway to one of the plurality of passageways to enable fluid flow therebetween. High pressure air from one of the plurality of passageways is diverted into the fuel passageway via the conduit to protect nozzle from ingestion of hot combustor gases.

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In a gas turbine having a compressor, a combustor and a turbine, a gaseous fuel supply coupled to provide gaseous fuel to the combustor, a liquid fuel supply coupled to provide liquid fuel to the combustor via nozzle assembly. The nozzle assembly includes a plurality of passageways for flowing a flu

In a gas turbine having a compressor, a combustor and a turbine, a gaseous fuel supply coupled to provide gaseous fuel to the combustor, a liquid fuel supply coupled to provide liquid fuel to the combustor via nozzle assembly. The nozzle assembly includes a plurality of passageways for flowing a fluid into the combustor, one of the passageways being a fuel passageway conduit interconnect the fuel passageway to one of the plurality of passageways to enable fluid flow therebetween. High pressure air from one of the plurality of passageways is diverted into the fuel passageway via the conduit to protect nozzle from ingestion of hot combustor gases. re. 8. A method, as set forth in claim 7, wherein said desired exhaust port temperature is dynamically determined. 9. A method, as set forth in claim 8, wherein said desired exhaust port temperature is determined in response to a load of the engine. 10. A method, as set forth in claim 9, wherein said desired exhaust port temperature is determined in response to an altitude of the engine. 11. A method as set forth in claim 10, wherein the engine includes a plurality of exhaust ports, and the step of sensing the exhaust temperature of the engine further comprises the step of determining a temperature of at least one of said plurality of exhaust ports. 12. A method as set forth in claim 11, wherein the step of determining a temperature further comprises the step determining the exhaust temperature of each of said plurality of exhaust ports. 13. A method as set forth in claim 12, wherein the step of determining a desired air pressure in response to said exhaust temperature includes the steps of: determining an average of the exhaust temperatures; comparing said average to a desired exhaust port temperature; and determining said desired air pressure in response to said comparison. 14. A method, as set forth in claim 13, wherein the step of controlling said air flow further comprises the step of determining at least one of a position of a choke valve and a position of a wastegate in response to said exhaust temperature comparison.