United Technologies Corporation

Christopher G Demers

Harvey I Weiner

Gabriel L Suciu

Brian D Merry

Steven J Feigleson

Kevin J Cummings

Keith T Honda

Michael E McMahon

Kevin A Walton

Robert B Richardson

Michael A Servadio

James C Hodgson

A gas turbine engine compressor has a number of shroud rings, at least a bleed one of which defines a number of bleed ports. A structural hub is downstream of the shroud rings and secured relative to the shroud rings. A structural hub case extends from an aft joint with the structural hub to a fore joint with a joined one of the shroud rings and has a number of valve ports. At least a portion of the structural case extends structurally between the fore and aft joints. A valve element is shiftable between first and second conditions for respectively blocking and not blocking communication through the valve ports.

Bleed housing

A stator assembly for a rotary machine having a shroud for a stator vane is disclosed. Various construction details are developed which limit movement of the stator vane into the flowpath by reason of the stator vane being restrained by the shroud. In one particular embodiment, a clip member extends through an opening in the tip of the vane and is disposed at a location adjacent a nonflowpath surface of the shroud to restrain the tip of the vane against inward movement through the shroud.

Stator assembly for a rotary machine and clip member for a stator assembly

A rotary machine (,) having rotor elements (,), (,) and seal lands (,) is disclosed. Various construction details are developed for facilitating assembly of the machine. In one embodiment clearances are established between rotor blades (,) and the seal land (,) which enable assembly of the components and provide for acceptable clearances at a steady-state operative condition of the engine.

Rotary machine

A method for assembling a rotary machine, such as a gas turbine engine, having rotor elements and associated seal lands. Various details of the method are developed for facilitating assembly of the rotary machine that are, in one embodiment, applicable to installing fan blades to a fan rotor disk while rotating the rotor disk by hand. In one embodiment, a lubricant is applied to a seal land to reduce friction between the rotor element and the seal land during assembly.

Method of assembling a rotary machine

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Willington, CT, United States of America

Christopher G Demers