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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Bibliographische Detailangaben
Hauptverfasser:	Bertini, Francesco, Rubechini, Filippo, Wadia, Aspi Rustom, Giovanni, Matteo, Vitt, Paul Hadley, Arnone, Andrea, Clements, Jeffrey Donald, Dailey, Lyle Douglas
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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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Beschreibung
Zusammenfassung:	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).