Patent ID: 7690203

Claim:
A gas turbine engine fuel nozzle assemblage comprising: a nozzle outer body comprising a premixing section and an interiorly disposed first fuel passageway to supply fuel to said premixing section, and more interiorly a central channel comprising an inlet from an air supply, an aperture at an upstream end to removeably receive an interchangeable lance, and a downstream-disposed annular bearing surface adapted to slidingly engage the interchangeable lance, wherein said interchangeable lance is one of a gas lance, and an oil lance, wherein said interchangeable lance comprises a lance flange disposed proximate an interchangeable lance upstream end, wherein the interchangeable lance is removeably affixed proximate said aperture via the lance flange, and wherein said interchangeable lance within said central channel forms a cooling passageway, and said interchangeable lance is effective to provide a desired flexible functionality to said fuel nozzle assemblage.