TURBINE COMPRESSOR VANE

PROBLEM TO BE SOLVED: To provide a compressor vane assembly for a gas turbine engine.SOLUTION: A compressor vane (62) can comprise at least one of four leakage control structures including: a leading edge axial stack (160) near a root (128) of the vane (62); a portion (150) of an inner platform (132...

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Hauptverfasser: ERIC ANDREW FALK, CURTIS WILLIAM MOECKEL, WOOD PETER J, JACEK MICHAL BRZOZOWSKI, ANDRZEJ TOMASZ TARNOWSKI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a compressor vane assembly for a gas turbine engine.SOLUTION: A compressor vane (62) can comprise at least one of four leakage control structures including: a leading edge axial stack (160) near a root (128) of the vane (62); a portion (150) of an inner platform (132) of an inner band (86) extending forward and having a radius curve; a negative dihedral (210) shape to an airfoil body along a leading edge (120) and adjacent to the root (128); and a trailing edge axial stack (170) for at least a portion of a trailing edge (122) of the vane (62) near the root (128). These leakage control structures increase the operating efficiency of a turbine (10), where the efficiency is normally decreased due to a leakage flow (96) from higher pressure stages of a compressor (22) to lower pressure stages.SELECTED DRAWING: Figure 1 【課題】ガスタービンエンジン用の圧縮機ベーン組立体を提供すること。【解決手段】圧縮機ベーン(62)は、ベーン(62)の根元部(128)近くの前縁軸方向スタック(160)と、前方向に延び、半径状の外形を有する内側バンド(86)の内側プラットフォーム(132)の一部分(150)と、前縁(120)に沿ってかつ根元部(128)に隣接するエーロフォイル本体に対して負の上反角(210)形状と、根元部(128)近くのベーン(62)の後縁(122)の少なくとも一部分の後縁軸方向スタック(170)とを含む、4つの漏出制御構造体の少なくとも1つを備えることができる。これらの漏出制御構造体は、タービン(10)の作動効率性を増大させる。この効率性は、通常、圧縮機(22)のより高い圧力段からより低い圧力段への漏出流(96)によって低下する。【選択図】図1