Skip to Content
Find More Like This
Return to Search

DUCTING ARRANGEMENT WITH INJECTOR ASSEMBLIES ARRANGED IN AN EXPANDING CROSS-SECTIONAL AREA OF A DOWNSTREAM COMBUSTION STAGE IN A GAS TURBINE ENGINE

United States Patent Application

20170343217
A1
View the Complete Application at the US Patent & Trademark Office
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.
Chen, Yuntao (Oviedo, FL), Portillo Bilbao, Juan Enrique (Oviedo, FL), North, Andrew J. (Orlando, FL), Tran, Lucky (Orlando, FL), Meadows, Joseph (Charlotte, NC), Laster, Walter Ray (Oviedo, FL)
15/ 165,195
May 26, 2016
STATEMENT REGARDING FEDERALLY SPONSORED DEVELOPMENT [0002] Development for this invention was supported in part by Contract No. DE-FE0023968, awarded by the United States Department of Energy. Accordingly, the United States Government may have certain rights in this invention.