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TURBINE BLADE WITH A NON-CONSTRAINT FLOW TURNING GUIDE STRUCTURE

United States Patent Application

20180038232
A1
View the Complete Application at the US Patent & Trademark Office
A turbine blade including a pressure sidewall (24) and a suction sidewall (26), and at least one partition rib (34) extends between the pressure and suction sidewalls (24, 26) to define a serpentine cooling path (35) having adjacent cooling channels (36a, 36b, 36c) extending in the spanwise direction (S) within the airfoil (12). A flow turning guide structure (50) extends around an end of the at least one partition rib (34) and includes a first element (52) extending from the pressure sidewall (24) to a lateral location in the cooling path between the pressure and suction sidewalls (24, 26), a second element (54) extending from the suction sidewall (26) to the lateral location in the cooling path between the pressure and suction sidewalls (24, 26). The first and second elements (52, 54) include respective distal edges (52.sub.d, 54.sub.d) that laterally overlap each other at the lateral location.
LEE, Ching-Pang (Cincinnati, OH), ZHOU, Yuekun (Charlotte, NC), COFFY, Adhlere (Cincinnati, OH), KOESTER, Steven (Toledo, OH)
15/ 552,327
March 17, 2015
STATEMENT REGARDING FEDERALLY SPONSORED DEVELOPMENT [0001] Development for this invention was supported in part by Contract No. DE-FC26-05NT42644, awarded by the United States Department of Energy. Accordingly, the United States Government may have certain rights in this invention.