United Technologies Corporation

Raytheon Technologies Corporation

Rtx Corporation

Joe Ott

Lexia Kironn

Evan J Butcher

Wendell V Twelves

Roger O Coffey

Dennis M Moura

Stanley J Funk

Gary A Schirtzinger

Lyutsia Dautova

John J Rup, Jr

Shawn Stempinski

Sergey Mironets

Kathleen E Sinnamon

John P Rizzo, Jr

Matthew E Lynch

Louis Porretti

Gary D Roberge

Donald William Peters

John T Schmitz

John D Frish

Rainer J Herbert

Jr Wendell V Twelves

Jr John J Rup

Wendell V Twelves Jr

Twelves Wendell V

Jr John P Rizzo

Wendel V Twelves

Lyustia Dautova

A method for abrasive flow machining includes moving an abrasive media through a high-aspect passage of a workpiece. Local pressure of the abrasive media is increased at target abrasion surfaces of the high-aspect passage using a passage geometry that is configured to direct flow of the abrasive media into the target abrasion surfaces such that the target abrasion surfaces are preferentially polished by the abrasive media over other, non-targeted surfaces of the high-aspect passage at which the flow of the abrasive media is not directed into.

Abrasive flow machining method and article

A tool includes a head that extends form the flexible section, an emitter within the head; and a nozzle to eject a cooling fluid therefrom. A method of additively manufacturing a component including delivering series of thermal shocks to a conglomerated powder within an internal passage of an additively manufactured component to facilitate removal of the conglomerated powder.

Additive manufactured conglomerated powder removal from internal passages

A method is provided for additive manufacturing. This method includes monitoring a current to a recoater blade. The monitored current is compared to a predetermined current. An operation is initiated in response to the monitored current exceeding the predetermined current. Another method for additive manufacturing includes comparing a movement of a recoater blade to an expected movement. A single exposure sequence is initiated in response to movement of the recoater blade being different than an expected movement. An additive manufacturing system is also provided which includes a recoated blade and a control. The control is operable to identify resistance to movement of the recoater blade.

Additive manufacturing process distortion management

A shrouded conduit is provided for arranging, for example, in a gas path of a turbine engine. The shrouded conduit includes a tubular shroud extending longitudinally along a centerline. The shrouded conduit also includes a fluid conduit extending longitudinally in the shroud. A first portion of the fluid conduit is connected laterally to and may be formed integral with a first portion of the shroud.

Shrouded conduit for arranging a fluid flowpath

A ceramic component retention system includes a metallic component, a ceramic component, and at least one spring element arranged between the metallic component and the ceramic component. The metallic component has a first coefficient of thermal expansion, and the ceramic component has a second coefficient of thermal expansion. The at least one spring element is configured to mechanically couple the ceramic component to the metallic component.

High temperature compliant metallic elements for low contact stress ceramic support

An additively manufactured component includes a heat transfer augmentation feature with a surface finish between about 125-900 micro inches.

Additive manufactured surface finish

A heat exchanger system for a gas turbine engine includes a plurality of fins; and an additively manufactured heat transfer tube that extends through the plurality of fins, the additively manufactured heat transfer tube follows a non-linear path though said plurality of fins.

Heat exchanger system with additively manufactured heat transfer tube that follows a non-linear path

A additive manufacturing system includes a containment housing operable to form a containment chamber with a low pressure operating atmosphere and an additive manufacturing build housing within said containment housing.

Additive manufacture system with a containment chamber and a low pressure operating atmosphere

A tool includes a flexible section; a head that extends form the flexible section; and an exciter within the head. A method of additively manufacturing a component including burrowing a tool into a conglomerated powder within an internal passage of an additively manufactured component, the tool vibrating in a manner to facilitate removal of the conglomerated powder.

A fuel injector is provided for a gas turbine engine. The fuel injector includes a fuel conduit and a cooling fluid circuit through a strut. A gas turbine engine is provided that includes a multiple of fuel injectors in communication with a combustor and a cooling system in communication with each of the multiple of fuel injectors.

Cooled fuel injector system for a gas turbine engine

A method is provided involving an additive manufacturing system. This method includes a step of forming a first fluid conduit using the additive manufacturing system. The method also includes a step of providing a fluid coupling. The fluid coupling includes the first fluid conduit and a second fluid conduit. The first fluid conduit is connected to and fluidly coupled with the second fluid conduit. The first fluid conduit has a first configuration. The second fluid conduit has a second configuration that is different than the first configuration.

Fluid couplings and methods for additive manufacturing thereof

Abrasive flow machining method

A method of monitoring the residual stress in surface and near surface regions of a component includes identifying predetermined locations on the surface of a component that are expected to experience high stress during normal operating conditions of the component. Marker particles are introduced into the component during additive manufacture of the component at the predetermined locations. Then, the residual stress of the component is measured at a location corresponding with the marker material using x-ray techniques.

Method for in-situ markers for thermal mechanical structural health monitoring

An apparatus includes first, second, and third layers. The first layer includes a plurality of flanges. The second layer includes a deformable membrane. The second layer is connected to the first layer along a first major surface of the deformable membrane. The third layer is connected to the second layer along a second major surface of the deformable membrane opposite the first major surface. The third layer includes a first series of internal structures.

Energy absorbing beam and sandwich panel structure

A flowpath assembly has a first conduit defining a flowpath radially inward, and a second conduit spaced radially outward from the first conduit. A void defined between the first and second conduits contains an insulating material that may have a greater porosity than the first and second conduits. The assembly may be additive manufactured generally as one unitary piece with the raw material of the conduits being melted and solidified on a slice-by-slice basis and the insulating material being selectively bypassed by an energy gun of an additive manufacturing system.

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Enfield, CT, United States of America

Joe Ott