Siemens Energy, Inc.

Siemens Energy Global Gmbh & Co. Kg

Joseph L Evins

Jose L Rodriguez

Robert H Bartley

Matthias Hase

Adam J Weaver

Miguel Bascones

Manish Kumar

Khamhou Sayavong

Lashanda N Williams

A transition duct support apparatus and a method to support an exit frame in a transition duct in a gas turbine engine are provided. A stiffener () may be arranged to provide support to an outer edge () of an exit frame () in a transition duct (). Stiffener () may be configured to circumferentially extend between mutually opposed corners () of the exit frame of the transition duct. A brace () may be connected to a centrally-disposed section () and may extend to support respective end portions () of the stiffener. The support apparatus is effective to provide a respective tuned level of stiffness support with respect to one or more axes of the exit frame in the transition duct. The apparatus and method may be effective for distributing mechanical stresses on the exit frame of the transition duct and/or neighboring regions in the transition duct.

Transition duct support and method to provide a tuned level of support stiffness

A gas turbine engine compressor has a compressor case comprising spaced apart inner and outer walls. An axial rotor is positioned within the outer wall. A bearing structure supports the axial rotor for rotation. A plurality of inlet guide vanes are coupled to the outer wall of the compressor case and radially extend inwardly, wherein each of at least a sub-set of said inlet guide vanes comprises a radial bore. Nested tie rods are received within a respective one of the inlet guide vane radial bores. Each tie rod comprises an outward end attached to the compressor case outer wall and an inward end attached to the compressor case inner wall.

Gas turbine compressor inlet with reduced flow distortion

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Fort Mill, SC, United States of America

Joseph L Evins