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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
An airfoil attachment system (10) for a modular turbine vane (12) of a gas turbine engine (14) including an outer attachment system (10) with forward and aft radially extending axial hooks (20, 22) configured to be coupled directly to a vane carrier (24) to increase structural integrity of the modular vane (12) is disclosed. The airfoil attachment system (10) may also include one or more midshroud outer supports (26) positioned between the forward and aft radially extending axial hooks (20, 22) to reduce circumferential rocking movement of the airfoil vane back and forth between the suction and pressure sides (28, 30) of the vane (12). The modular turbine airfoil vane (12) may be positioned between adjacent shrouds (32, 34) forming first and second joints (88, 102). A first sealing system (104) may be placed at the first joint (88), and a second sealing system (110) may be placed at the second joint (102) to limit hot gas ingestion.
MESSMANN, Stephen John (Charlotte, NC), VISSER, Bradley J. (Longwood, FL)
15/ 516,714
October 28, 2014
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0001] Development of this invention was supported in part by the United States Department of Energy, Advanced Turbine Development Program, Contract No. DE-FC26-05NT42644. Accordingly, the United States Government may have certain rights in this invention.