United Technologies Corporation

Raytheon Technologies Corporation

Charles R Watson

Frederick M Schwarz

Christopher J Hertel

Grant O Cook, Iii

John D Riehl

John Henry Vontell, Sr

Jeffrey S LeShane

Sergei F Burlatsky

William Bogue

David Ulrich Furrer

Glenn Levasseur

Barry Barnett

Colin J Kling

Dmitri Novikov

Shari L Bugaj

Gary D Roberge

JinQuan Xu

Wendell V Twelves

Kevin W Schlichting

Mario P Bochiechio

Michael A Weisse

James T Roach

Gary M Lomasney

Vadim V Atrazhev

John William Putnam

Jesse C Meyer

Andrew G Alarcon

Robert C Dolan

Phyllis L Kurz

Lisa A Walla

Vadim I Sultanov

Hillary Anne Huttenhower

Dmitry Dmitriev

Joseph Parkos, Jr

Steven Clarkson

Michael Parkin

Carl S Richardson

Charles W Brown

Matthew A Turner

George Alan Salisbury

Daniel M Stadtlander

Michael E McMahon

Dennis R Tremblay

Kostas Routsis

Sol S Blecherman

John H Vontell, Sr

Nelson DaCunha

Kelly L Hoover

Charles R LeJambre

Michael Caulfield

Shari J Bugaj

Grant O Cook Iii

Raymond K Kersey

Joseph J Parkos, Jr

William F Bogue

Charles R Lejambre

Iii Grant O Cook

Sergei Fedorovich Burlatsky

Vadim Iosifovich Sultanov

Dmitry Vladimirovich Dmitriev

Vadim Vladimirovich Atrazhev

Dmitri Leonidovich Novikov

John W Putman

Bret B Bonarrigo

Plated polymeric gas turbine engine parts and methods for fabricating lightweight plated polymeric gas turbine engine parts are disclosed. The parts include a polymeric substrate plated with one or more metal layers. The polymeric material of the polymeric substrate may be structurally reinforced with materials that may include carbon, metal, or glass. The polymeric substrate may also include a plurality of layers to form a composite layup structure.

Plated polymer fan

A method of molding a component includes the steps of providing a plurality of fibers, applying the fibers with a low temperature sizing to form a plurality of sized fibers, forming a preform from the plurality of sized fibers, placing the preform in a mold, and de-sizing the preform by heating the mold to an initial temperature that is sufficient to break down the low temperature sizing to a gaseous phase. A molding apparatus is also disclosed.

In-situ desizing for liquid infusion processes

Plated polymer compressor

A polymeric material process includes increasing a mobility within a polymer to enables specific alignment of polymer chains.

High performance polymide and process therefor

In a featured embodiment, a fan rotor includes a platform. Clevises extend radially inwardly of the platform. Each clevis has an aperture. A hub has hub lugs positioned intermediate spaced ends of the clevises, and apertures. A pin extends through the apertures in the hub and the clevises to connect the platform to the hub. The apertures in the clevises are formed to have an inner surface for supporting the pin. A method of forming a fan blade platform is also disclosed.

Fan blade platform spacer mounting

A composite article lay up comprising a first layer of resin impregnated fiber material and a second layer of resin impregnated fiber material. An open cell material is layered between the first layer and the second layer. The open cell material has no resin during a first stage of a resin cure cycle. The open cell material has passages configured to flow volatiles formed during the first stage of the resin cure cycle. The open cell material is configured to fill with the resin during a second stage of the resin cure cycle. The open cell material is configured to form an integral structure with the first layer and the second layer as part of the composite article at the completion of the resin cure cycle.

Enhanced volatile removal for composite layup

A composite component and a plated polymer component are disclosed. The composite component may comprise a body portion formed from an organic matrix composite, a first metal coating applied to a surface of the body portion, and an outer metal layer on the first metal coating that is erosion-resistant. The plated polymer component may comprise a polymer substrate, a metal plating layer applied to a surface of the polymer substrate, and at least one selectively thickened region in the metal plating layer. The at least one selectively thickened region may assist in protecting the plated polymer component against wear and/or erosion.

Erosion and wear protection for composites and plated polymers

An investment mold includes a mold cavity and a refractory investment wall that bounds at least a portion of the mold cavity. At least a portion of the refractory investment wall includes a plurality of fugitive beads. The fugitive beads can be sacrificed to provide voids that control the strength of the refractory investment wall such that the wall fractures at the voids during investment casting to alleviate stress on a solidified metal cast in the mold cavity.

Investment mold with fugitive beads and method related thereto

A method of adhering a first structure to a second structure using a primer, containing a primer fugitive inhibitor, and a film adhesive by removing the primer fugitive inhibitor under vacuum at room temperature conditions.

Method for adhering structures using silicone adhesive system

A method for patching a damaged polymeric erosion coating () on a gas turbine engine component. The method comprises removing a portion of the coating around a damage site () and applying a pre-formed coating patch ().

Turbine engine repair methods

High performance polymer and process therefor

A porous composite substrate that includes reinforcement material disposed within a resin matrix. The resin matrix includes a first matrix region with a first density, and a second matrix region with a second density that is different than the first density. The first matrix region includes a plurality of pores that are formed by pore forming material.

Composite substrates with predetermined porosities

A composite layer for resisting erosion includes a sacrificial layer for exposure to an erosion environment, a body layer, and an erosion resistant layer located between the sacrificial erosion layer and the body layer for protecting the body layer upon erosion of the sacrificial layer.

Article and method for erosion resistant composite

A laminate air seal for a gas turbine engine includes at least one fabric layer made of fiberglass, ceramic fiber, basalt and/or carbon, and a polymeric resin that is stable at an operating temperature of the gas turbine engine. The resin may be preimpregnated into the fabric layers, or introduced into the fabric during assembly and formation of the laminate. The resin may be polyimide, bismaelimide (BMI) or cyanate ester. A particular resin selected may depend, in part, on the operating temperatures in that region of the gas turbine engine. In some embodiments, the laminate seal may include a coating to increase lubricity of the seal. In one embodiment, the laminate air seal is used to seal a gap between a pylon fairing and an exhaust nozzle of the turbine engine.

Laminate air seal for a gas turbine engine

The invention comprises an abradable material containing up to 30 weight percent of fumed silica having a maximum particle from about 5 nanometers to about 20 nanometers and about 1.5 to about 5 weight percent of an abradable organic microballoon filler within an abradable silicone polymer matrix having an elasticity of less than X percent.

Turbine friendly abradable material

Growing community of inventors

Windsor, CT, United States of America

Charles R Watson