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DUCTING ARRANGEMENT IN A COMBUSTION SYSTEM OF A GAS TURBINE ENGINE

United States Patent Application

20170260866
A1
View the Complete Application at the US Patent & Trademark Office
A ducting arrangement (30) in a combustion system of a gas turbine engine is provided. The ducting arrangement may be formed by duct segments (32) circumferentially adjoined with one another to form a flow duct structure (e.g., a flow-accelerating structure (34)) and a pre-mixing structure (35). The flow duct structure is fluidly coupled to pass a cross-flow of combustion gases. The pre-mixing structure (35) may include an array of pre-mixing tubes (48) fluidly coupled to receive air and fuel conveyed by a manifold (42) to inject a mixture of air and fuel into the cross-flow of combustion gases that passes through the flow duct structure. The duct segments 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) technology.
Meadows, Joseph (Charlotte, NC), Portillo Bilbao, Juan Enrique (Oviedo, FL), Laster, Walter Ray (Oviedo, FL), North, Andrew J. (Orlando, FL)
15/ 066,542
March 10, 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.