TURBINE COMPRESSOR VANE

A compressor vane (62) can comprise at least one of four leakage control structures comprising a leading edge axial stack (160) near the root (128) of the vane (62), a portion (150) ofthe inner platform (132) of an inner band (86) extending forward and having a radiused geometry, a negative dihedral...

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Bibliographische Detailangaben
Hauptverfasser: FALK, Eric Andrew, WOOD, Peter John, TARNOWSKI, Andrzej Tomasz, BRZOZOWSKI, Jacek Michal, MOECKEL, Curtis William
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A compressor vane (62) can comprise at least one of four leakage control structures comprising a leading edge axial stack (160) near the root (128) of the vane (62), a portion (150) ofthe inner platform (132) of an inner band (86) extending forward and having a radiused geometry, a negative dihedral (210) shape to the airfoil body along the leading edge (120) and adjacent the root (128), and a trailing edge axial stack (170) for at least a portion of the trailing edge (122) ofthe vane (62) near the root (128). These leakage control structures increase operating efficiency ofthe turbine (10) where the efficiency is normally decreased due to leakage flow (96) from higher pressure stages of the compressor (22) to lower pressure stages.