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METHOD AND COMPUTER-READABLE MODEL FOR ADDITIVELY MANUFACTURING DUCTING ARRANGEMENT FOR A GAS TURBINE ENGINE

United States Patent Application

20170342846
A1
View the Complete Application at the US Patent & Trademark Office
Method and computer-readable model for additively manufacturing a ducting arrangement (10) for a gas turbine engine are provided. Ducting arrangement (10) may include a duct (18) to be fluidly coupled to receive a cross-flow of combustion gases from a 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 to be mixed with the cross-flow of combustion gases. The ducting arrangement is effective 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/ 165,210
May 26, 2016
STATEMENT REGARDING FEDERALLY SPONSORED DEVELOPMENT [0001] 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.