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1. (WO2018044271) FLOW DIRECTING STRUCTURE FOR A TURBINE STATOR STAGE

Pub. No.:    WO/2018/044271    International Application No.:    PCT/US2016/049386
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Wed Aug 31 01:59:59 CEST 2016
IPC: F01D 5/14
F01D 9/04
F01D 5/18
Applicants: SIEMENS AKTIENGESELLSCHAFT
Inventors: MARSH, Jan H.
LANDRUM, Evan C.
Title: FLOW DIRECTING STRUCTURE FOR A TURBINE STATOR STAGE
Abstract:
A stator stage (10) of a turbine engine includes a circumferential row of flow directing structures (12), each including: an inner endwall (14) and an outer endwall (16) spaced apart radially, and a pressure sidewall (18) and a suction sidewall (20) extending radially between the inner endwall (14) and the outer endwall (16) and spaced apart circumferentially. The inner and outer endwalls (14, 16) and the pressure and suction sidewalls (18, 20) define therewithin a duct (22) for directing flow of a hot gas. Circumferentially adjacent flow directing structures (12a, 12b) mate along a respective split-line (24) extending along an interface between the pressure sidewall (18) of a first flow directing structure (12a) and the suction sidewall (20) of a second circumferentially adjacent flow directing structure (12b). A composite airfoil structure (26) is thereby defined having a pressure sidewall (18) formed by the pressure sidewall (18) of the first flow directing structure (12a) and a suction sidewall (20) formed by the suction sidewall (20) of the second flow directing structure (12b).