TURBINE INCORPORATING ENDWALL FENCES

A turbine apparatus includes: a turbine, including: a turbine component defining an arcuate flowpath surface (40, 70, 76); an array of axial-flow turbine airfoils (46, 64) extending from the flowpath surface (40, 70, 76), the turbine airfoils (46, 64) defining spaces (60, 93) therebetween; and a plu...

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Main Authors Bertini, Francesco, Rubechini, Filippo, Wadia, Aspi Rustom, Giovanni, Matteo, Vitt, Paul Hadley, Arnone, Andrea, Clements, Jeffrey Donald, Dailey, Lyle Douglas
Format Patent
LanguageEnglish
French
German
Published 23.06.2021
Subjects
BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
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Summary:A turbine apparatus includes: a turbine, including: a turbine component defining an arcuate flowpath surface (40, 70, 76); an array of axial-flow turbine airfoils (46, 64) extending from the flowpath surface (40, 70, 76), the turbine airfoils (46, 64) defining spaces (60, 93) therebetween; and a plurality of fences (146, 164, 264) extending from the flowpath surface (40, 70, 76), in the spaces (60, 93), each fence having opposed concave and convex sides extending between a leading edge and a trailing edge, wherein the fences (146, 164, 264) have a nonzero camber and a constant thickness, are axially located near the leading edges of adjacent turbine airfoils (46, 64), and wherein at least one of a chord dimension of the fences (146, 164, 264) and a span dimension of the fences (146, 164, 264) is less than the corresponding dimension of the turbine airfoils (46, 64).
Bibliography:Application Number: EP20180425066