General Electric Company

Ge Aviation Systems Limited

Bha Group, Inc.

Ge Energy Power Conversion Technology Gmbh

Wei Zhang

Xiaomei Fang

Weijun Yin

Hao Huang

Xiaochuan Jia

Karim Younsi

John Russell Yagielski

Daniel Qi Tan

Lili Zhang

Matthew Hal Littlejohn

Robert Colin McTigue

Anil Raj Duggal

Gary William Yeager

Mohamed Osama

Mark Ernest Vermilyea

Eugene Pauling Boden

Hendrik Pieter Jacobus De Bock

Paul Robert Gemin

Ravisekhar Nadimpalli Raju

Patricia Chapman Irwin

James William Bray

Konrad Roman Weeber

David Allan Torrey

Qin Chen

Kevin Warner Flanagan

David Dimitri Karipides

Philip Michael Cioffi

Siddharth Navinchandra Ashar

Anoop Jassal

Mark Dame

Alexander Kagan

Joseph John Zierer

Pablo Gabriel Piazza Galarza

Christopher Michael Calebrese

Brendan Michael Freely

David Andrew Simon

Fabian Isaza

Rammohan Rao Kalluri

Kathryn Amanda Misner

RiAn Zhao

Jason Rueda

Shekhar Shripad Kamat

Peter Francis Finigan

Stephen Francis Francese

Charles T Sigler

Christopher Celebrese

Santiago Blackaller Ledesma

Javier Guzman Padilla

An electric machine having an electrically insulative manifold is disclosed. In one example aspect, an electric machine includes a non-electrically conductive manifold. The manifold defines a chamber operable to receive a cooling fluid. The electric machine includes a prime winding in fluid communication with the chamber and one or more secondary windings in electrical communication with the prime winding and in fluid communication with the chamber. Further, the electric machine includes an electric machine terminal extending through the non-electrically conductive manifold and coupled with the prime winding. The electric machine terminal can provide or collect cooling fluid from the chamber of the manifold and can act as the electrical connection point for directing electrical power to or from the windings of the electric machine. The non-electrically conductive manifold electrically decouples the windings of the electric machine despite each winding receiving cooling fluid provided or collected at the manifold.

Electric machine having an electrically insulative manifold

An electric winding assembly comprising a conductor core which includes at least a first end and a distal second end, an insulation layer overlying the conductor core, and a conductive shield layer overlying the insulation layer. The conductive shield layer further having a terminal end conductively connected with the conductive shield layer.

Method and system for electrically insulating portions of an electric machine

An armature is presented. The armature includes an armature winding having a plurality of coils, wherein each coil of the plurality of coils is spaced apart from adjacent coils and comprise includes a first side portion and a second side portion. The armature further includes a first electrically insulating winding enclosure. Furthermore, the armature includes a second electrically insulating winding enclosure disposed at a radial distance from the first electrically insulating winding enclosure, wherein the armature winding is disposed between the first electrically insulating winding enclosure and the second electrically insulating winding enclosure. Moreover, the armature includes an electrically insulating coil side separator disposed between the first side portion and the second side portion of the plurality of coils of the armature winding. A superconducting generator including the armature and a wind turbine having such superconducting generator are also presented.

Wind turbine having superconducting generator and armature for use in the superconducting generator

An electrical insulating system and an associated insulated stator bar are provided. The electrical insulating system includes an electrically insulating mica paper and a fiber glass disposed on a first surface of the electrically insulating mica paper. The electrically insulating mica paper and the fiber glass are impregnated with a curable binder resin composition. The curable binder resin composition includes about 21 weight percent to about 73 weight percent of a solid or semi-solid epoxy resin having an epoxide functionality of about 2.5, about 0.8 weight percent to about 49 weight percent of a liquid epoxy resin having an epoxide functionality of about 2, about 4 weight percent to about 15 weight percent of a bisphenol A-formaldehyde novolac, a metal acetylacetonate catalyst, and about 2.5 weight percent to about 15 weight percent of a toughener selected from the group consisting of polyethersulfone, methylmethacrylate butadiene styrene, and a combination thereof.

Electrical insulation systems and insulated components for electrical machine

A conductor a method of forming a conductor can include providing a hollow base conductor defining a fluid channel along the base conductor, and a solid conductor arranged about the perimeter of the hollow base conductor, wherein the fluid channel can be configured to allow a fluid to flow via the channel.

Conductor and method of forming thereof

A high temperature article, for example an igniter for a combustor is presented. The igniter includes a central electrode having a discharge end, an insulator sleeve surrounding the central electrode and a tubular electrode shell surrounding the insulator sleeve. The tubular electrode shell has a forward end projecting beyond the discharge end. The tubular electrode shell includes an iron-based alloy. The igniter further includes a protective coating including alumina disposed on a surface of the forward end. A combustor of a turbine engine, including the igniter is also presented.

Igniter with protective alumina coating for turbine engines

An insulative assembly includes an insulative mica-based carrier film and first and second resistive grading layers joined to opposite sides of the mica-based carrier film. The first resistive material layer is configured to engage one or more conductors and insulate the one or more conductors from at least one other conductor. A method for creating an insulative assembly for one or more conductors includes obtaining an insulative mica-based carrier film, depositing a first resistive grading layer on a first side of the mica-based carrier film, and depositing a second resistive grading layer on an opposite, second first side of the mica-based carrier film.

Insulation for conductors

A transformer includes a ceramic housing, a primary winding disposed within the housing, a secondary winding disposed outside the winding, and a core extending through a first aperture in the housing. The housing includes a first portion and a second portion. Each of the first and second portions include a planar structure having a first housing aperture, and a plurality of sidewalls extending perpendicular to the planar structure along a plurality of edges of the planar structure. The first and second portions interface with one another when the ceramic housing is assembled such that the sidewalls of the first and second portions overlap with one another.

Ceramic insulated transformer

A curable composition for an electrical machine is presented. The curable composition includes: (A) about 10 weight percent to about 30 weight percent of a polyfunctional cyanate ester; (B) about 25 weight percent to about 60 weight percent of a first difunctional cyanate ester, or a prepolymer thereof; (C) about 10 weight percent to about 30 weight percent of a second difunctional cyanate ester, or a prepolymer thereof, and (D) about 5 weight percent to about 25 weight percent of a thermally conductive filler comprising boron nitride. An associated method is also presented.

Curable composition for electrical machine, and associated method

A slot liner for a rotor assembly in one embodiment includes a metallic support member and a coating. The coating is disposed on at least one side of the metallic support member, and includes a mixture of a filler and a polyimide resin. The filler is a high thermal conductivity electrical insulating (HTCEI) filler, and includes particles of at least one of boron nitride, aluminum nitride, or a diamond material.

Rotor slot liners

A slot liner for a stator assembly in one embodiment includes a mesh structural member and a coating. The coating is disposed on at least one side of the mesh structural member, and includes a mixture of a filler and a polyimide resin. The filler is a high thermal conductivity electrical insulating (HTCEI) filler, and includes particles of at least one of boron nitride, aluminum nitride, or a diamond material.

Stator slot liners

An electric machine includes a housing, a stator core positioned within the housing, a wire wound about the stator core to form a plurality of end-turns that extend from an end of the stator core, and a thermal conductor positioned between the plurality of end-turns and the housing. The thermal conductor includes a substrate and a thermally conductive coating formed on a surface of the substrate. The thermally conductive coating includes a thermally conductive, dielectric material configured to transfer heat from the plurality of end-turns to the substrate.

Thermal conductor for use in an electric machine and method of forming the same

A slot liner for a stator and/or a rotor of an electric machine includes a body configured to be received within a stator slot and/or within a rotor slot. The body extends from a first end to an opposite second end and from a first edge to an opposite second edge. The body includes an inner segment and first and second outer segments that extend along the body. The first and second outer segments flank the inner segment such that the inner segment extends between the first and second outer segments along the body. The inner segment includes at least one different material such that a thermal conductivity of the inner segment is greater than a thermal conductivity of the first and second outer segments.

Slot liner for an electric machine

An article for providing protection from electromagnetic energy, and an associated method for provision of such. The article includes conductive fibers extending within the article, varistor material dispersed and secured within the article, and ferrite material dispersed and secured within the article.

Electromagnetic protection cloth

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Ballston Lake, NY, United States of America

Wei Zhang