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Patent

Variable stator vane mounting and vane actuation system for an axial flow compressor of a gas turbine engine

TLDR
In this article, a compressor stator vane assemblage includes a first metal bushing disposed within a bore through the compressor casing and bolted to the casing by externally accessible bolts.
Abstract
A compressor stator vane assemblage includes a first metal bushing disposed within a bore through the compressor casing and bolted to the casing by externally accessible bolts. A second composite bushing is disposed within the first bushing and receives the spindle of the stator vane. Reduced diameter portions of the spindle project through openings in the first and second bushings. A lever attaches to the spindle portion and is movable to rotate the vane. By removing the bolts, the first and second bushings can be removed from the casing for replacement or rotation of 180° for prolonged service life without disassembly of the casing or removal of the stator vane.

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Citations
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Patent

Bushing for a jet engine vane

TL;DR: In this paper, a vane assembly for an engine is described, with a blade having a spindle disposed at one end thereof and a bushing mounted on the spindle.
Patent

Composite Vane Mounting

TL;DR: In this paper, a vane includes a composite airfoil having chordwise spaced forward and aft dovetail feet at or near the leading and trailing edges of an inner vane mount.
Patent

Scalable high pressure compressor variable vane actuation arm

TL;DR: A variable vane arm has a hook portion comprising a radially inner leg connected to the radially outer leg by an arcuate connection, and an actuation lever extending from the hook portion.
Patent

Attachment stud for a variable vane assembly of a turbine compressor

TL;DR: In this paper, an attachment stud for a variable vane assembly is disclosed, which includes a bottom, a middle, a top, a shoulder, and a retaining device to rigidly attach the rotational attachment device to the attachment stud.
Patent

Variable vane seal and washer

TL;DR: In this paper, a variable-vane assembly is described and a washer is described for a turbine engine, which is positioned between a variable vane 402 and a casing 406.
References
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Patent

Variable stator vane assembly for an axial flow compressor of a gas turbine engine

TL;DR: A variable angle stator vane assembly for axial flow gas turbine engine compressor is described in this article, where the stator spindle extends through the housing bore and busing assembly.
Patent

Turbine engine stator with pivoting blades and control ring

TL;DR: A turbine engine stator has a metal casing surrounding an envelope carrying bearings for the pivots of pivoting blades as discussed by the authors, which are not subject to wear giving rise to gas leaks and efficiency losses.
Patent

Blade control rod and system of such rods

Jacky Naudet
TL;DR: In this article, a blade control rod system for controlling the blades of a gas turbine stator is described, which includes a projection which extends beneath a portion of at least one adjacent rod, so that accidental loosening of a nut which secures the rod on the shaft of the blade is not sufficient to allow the rod to become detached.
Patent

Axial flow turbine

TL;DR: In this article, an axial flow turbine with a row of individually adjustable guide vanes and rotor blades is described, in which the rotor blades form a seal with a cover.