Ducting arrangement with injector assemblies arranged in an expanding cross-sectional area of a downstream combustion stage in a gas turbine engine
A ducting arrangement (10) in a combustion stage downstream of a main combustion stage of a gas turbine engine is provided. A duct (18) is fluidly coupled to receive a cross-flow of combustion gases from the main combustion stage. Duct (18) includes a duct segment (23) with an expanding cross-sectional area (24) where one or more injector assemblies (26) are disposed. Injector assembly (26) includes one or more reactant-guiding structures (27) arranged to deliver a flow of reactants into the downstream combustion stage to be mixed with the cross-flow of combustion gases. Disclosed injector assemblies are arranged in expanding cross-sectional area (24) to reduce total pressure loss while providing an effective level of mixing of the injected reactants with the passing cross-flow. Respective duct components or the entire ducting arrangement may be formed as a unitized structure, such as a single piece using a rapid manufacturing technology, such as 3D Printing/Additive Manufacturing (AM) technologies.
SIEMENS ENERGY, INC.
F F F F F F F F F F F F F F F F F F
F23R F23R F01D F23R F23R F23R F23R F23R F23R F23R F02C F23R F05D F23R F23R F23R F02C F23R
inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional additional additional inventional inventional inventional inventional inventional
Andrew J. Juan Enrique Walter Ray Joseph Yuntao Lucky
North Portillo Bilbao Laster Meadows Chen Tran