ADDITIVELY MANUFACTURED COMBUSTOR WITH AIR RE-USE FROM AFT FRAME TO AXIAL FUEL STAGE INJECTOR(S)

Abstract: a combustor for a gas turbine system includes an additively manufactured (am) combustor body including a one-piece member. the member includes a combustion liner including a cylindrical portion and a tapered transition portion, and at least one axial fuel stage (afs) injector directed into the combustion liner. the member also includes an aft frame at an aft end of the tapered transition portion, the aft frame including a first cooling passage therein with an inlet and an outlet with the inlet in fluid communication with an air coolant source. a flow sleeve is spaced from an exterior surface of the tapered transition portion and defines a second, annular cooling passage therebetween. the second cooling passage extends from the outlet of the first cooling passage to an air inlet of afs injector(s). the am combustor body includes a plurality of parallel, sintered metal layers.

Inventor(s): Richard Martin DiCintio

CPC Classification: F23R3/002 ({Wall structures ( and take precedence)})

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