GAS TURBINE ENGINE RING OR CIRCULAR ROW, CORRESPONDING ASSEMBLY AND DESIGNING METHOD

GAS TURBINE ENGINE RING OR CIRCULAR ROW, CORRESPONDING ASSEMBLY AND DESIGNING METHOD

A circular row 11 of non-uniformally spaced vanes 15 includes only one first group (G1) and only one second group (G2) of adjacent vanes 15, unequal first and second spacing (S1, S2) between adjacent vanes 15 in the first and second groups (G1, G2), and first spacing (S1) greater than second spacing...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GREEN, Brian Richard, BRUNI, Joseph Michael, WOOD, Peter John, TAYLOR, Steven Mitchell, MIELKE, Mark Joseph, MOECKEL, Curtis William, FRISCH, Mark Joseph
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
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
STEAM ENGINES
WEAPONS
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Beschreibung
Zusammenfassung:A circular row 11 of non-uniformally spaced vanes 15 includes only one first group (G1) and only one second group (G2) of adjacent vanes 15, unequal first and second spacing (S1, S2) between adjacent vanes 15 in the first and second groups (G1, G2), and first spacing (S1) greater than second spacing (S2). An embodiment with second group (G2) including only three adjacent vanes 15. Second spacing (S2) may be about 25%-35% smaller than a nominal uniform spacing (S) used as a design parameter for designing spacing of the non-uniformly spaced stator vanes 15. Circular row 11 may be sectored. A gas turbine engine section may include one or more rings or circular rows 11 of fixed and/or variable non-uniformally spaced vanes 15. Method for designing non-uniform vane spacing for circular row 11 includes determining nominal uniform spacing (S) and forming first spacing (S1) and second spacing (S2) from nominal uniform spacing (S) of vanes 15.