General Electric Company

Jeffrey John Eschenbach

Stephen Joseph Waymeyer

Edward P Brill

Karl L Borneman

Bruno G Lampsat

Srinivasan Venkatasubbu

Lynn Marie Bolender

Craig Ronald Ziegler

Robert Eugene Uhl

Michael William Hamilton

Gregory Patrick Foley

Steven Jerome Longtin

A system for assembling a rotor stack having a plurality of rotor disks may include a measurement system for measuring characteristics of the rotor disks, a computer electronically connected to the measurement system for capturing data from the measurement system, and solid modeling software for creating a virtual stack of the rotor disks optimized for concentricity.

System and a method for assembling a rotor stack

A combustion case for a gas turbine engine. A typical combustion case is generally cylindrical or conical. Apertures penetrate the case, from the outer surface, through the case, to the inner surface. The apertures act as concentration points for stress. To dissipate the stress, bosses buttress the apertures, with each aperture having two bosses: one on the outer surface of the case, and another on the inner surface of the case. The invention eliminates the latter bosses. The invention dissipates stress by providing an array of T-slots on the inner surface.

Method and apparatus for relieving stress in a combustion case in a gas turbine engine

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.degree. for prolonged service life without disassembly of the casing or removal of the stator vane.

Variable stator vane mounting and vane actuation system for an axial

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Loveland, OH, United States of America

Jeffrey John Eschenbach