General Electric Company

Karthik Kumar Bodla

Brian Magann Rush

Andrew Thomas Cross

Hendrik Pieter Jacobus De Bock

Weijun Yin

Nathaniel Benedict Hawes

Naveenan Thiagarajan

Yogen Vishwas Utturkar

Juan Antonio Sabate

David Allan Torrey

Konrad Roman Weeber

Ruxi Wang

Corey Bourassa

Vandana Prabhakar Rallabandi

Gary Dwayne Mandrusiak

Manoj Ramprasad Shah

William Dwight Gerstler

Mohamed Osama

Douglas Carl Hofer

Ayman Mohamed Fawzi EL-Refaie

John Russell Yagielski

Samir Armando Salamah

James Albert Tallman

Patel Bhageerath Reddy

Lana Maria Osusky

Yash Veer Singh

Joo Han Kim

Tsarafidy Raminosoa

Joseph John Zierer

William John Bonneau

Krishna Mainali

Steven Joseph Galioto

Anoop Kumar Jassal

Kevin Patrick Rooney

An electric motor may include a stator assembly comprising a stator housing, and one or more rotors coupled to the stator by a rotor shaft assembly. The stator housing may include a cooling structure that has a plurality of cooling body portions and a plurality of cooling conduits defined by the plurality of cooling body portions. A method of forming a stator housing for an electric machine may include additively manufacturing a stator housing that includes a cooling structure defining a fluid domain, coupling a working fluid source to the stator housing and introducing a working fluid into the fluid domain defined by the cooling structure, and sealing the cooling structure with the working fluid contained within the fluid domain of the cooling structure. A method of cooling an electric machine may include heating the working fluid in the fluid domain and flowing the working fluid through the fluid domain, and transferring heat from the cooling structure to a cooling fluid flowing along one or more cooling surfaces contacting a surface of the electric machine.

Cooling a stator housing of an electric machine

An electric machine can include a stator core having a plurality of core teeth that define a plurality of core slots in a surface thereof. A winding can be housed at least partially in the core slots. The winding can include a tube defining a channel through at least a portion thereof and one or more wires disposed along a surface of the tube that is opposite the channel. A cooling system can be operably coupled with the channel and configured to move a cooling fluid through the channel.

Stator cooling channels with internal features

A heat pipe assembly includes walls having porous wick linings, an insulating layer coupled with at least one of the walls, and an interior chamber sealed by the walls. The linings hold a liquid phase of a working fluid in the interior chamber. The insulating layer is directly against a conductive component of an electromagnetic power conversion device such that heat from the conductive component vaporizes the working fluid in the porous wick lining of the at least one wall and the working fluid condenses at or within the porous wick lining of at least one other wall to cool the conductive component of the electromagnetic power conversion device. The assembly can be placed in direct contact with the device while the device is operating and/or experiencing time-varying magnetic fields that cause the device to operate.

Conformal heat pipe assemblies

Electric motor having conformal heat pipe assemblies

A cooling assembly includes a body configured to be placed into thermal contact with a heat source and one or more non-planar, hermetic walls disposed within the body. The one or more non-planar hermetic walls extending around, enclosing, and defining a cooling channel configured to carry cooling fluid through the body such that the cooling fluid contacts internal surfaces of the cooling channel inside the body. The assembly including one or more enhancement structures disposed within the body and coupled with the one or more non-planar hermetic walls. The one or more enhancement structures shaped to change a flow path of the cooling fluid as the cooling fluid moves within the cooling channel and shaped to increase a surface area contacted by the cooling fluid within the cooling channel.

Additively manufactured cooling assemblies for thermal and/or mechanical systems, and methods for manufacturing the assemblies

An electrical winding topology having a core and a plurality of windings is provided. The plurality of windings is operatively coupled to the core, where at least one of the plurality of windings includes an evaporator section and a condenser section. Further, at least a portion of one or more of the plurality of windings includes heat pipes.

Electrical winding topologies and methods of making the same

Embodiments of the present disclosure include an inductor including at least one inductor coil, the at least one inductor coil including a plurality of outer longitudinal portions aligned around an outer periphery of the inductor, and a plurality of inner longitudinal portions aligned around an interior of the inductor. The plurality of outer longitudinal portions and the plurality of inner longitudinal portions collectively form two width-wise sides of the inductor and two length-wise sides of the inductor. The two width-wise sides and the two lengthwise sides define a substantially rectangular prism shape. The two width-wise sides and the two lengthwise sides define a hollow inductor core.

High density magnetic resonant imaging gradient driver with integrated cooling

A method includes fabricating a core, wherein the core comprises a chemically soluble first polymer, forming a body around the core, wherein the body comprises a second polymer, and etching away the core to reveal a cooling channel extending through the body.

Systems and method for embedded direct winding cooling for electric machines

At least one thermal module in fluidic communication with the one or more electronic components. The thermal module including a hydraulic motor operable to rotate a motor output shaft. The module further including a fan coupled to the motor output shaft, at least one heat exchanger in fluidic communication with the fan to provide passage therethrough of an air stream in response to rotational movement of the fan, and a conduit carrying a pressurized liquid stream through the hydraulic motor and each of the at least one heat exchanger. The pressurized liquid stream causing the motor output shaft to rotate and wherein heat in one of the air stream or the pressurized liquid stream is passed through each of the at least one heat exchanger and rejected into the other of the air stream or the pressurized liquid stream. A thermal management system including the at least one thermal module is disclosed.

Liquid driven thermal module and thermal management system

Embodiments of a thermal management system are provided herein. In some embodiments, a thermal management system may include a base plate; and a plurality of three dimensional fins coupled to the base, wherein each of the plurality of three dimensional fins comprises a first portion extending away from the base in a first direction and a second a portion extending away from the first portion in a second direction different from the first direction.

Thermal management system

A support form defining a longitudinal axis is provided. The support form includes a first section, a second substantially solid section, and at least one flow feature form. The first section includes a plurality of unit cells of a first material joined together to form a lattice. The second section includes a second material and surrounds the first section. The at least one flow feature form is defined in the second section and is configured to generate a flow feature on a heat exchanger tube formed by plating the support form.

Systems and methods for heat exchanger tubes having internal flow features

A component for an electrical machine is disclosed. The component is a stator and/or a rotor. The component includes a core, a magnetic field-generating component, and an oscillating heat pipe assembly. The core includes a plurality of slots and the magnetic field-generating component is disposed in at least one slot of the plurality of slots. The oscillating heat pipe assembly is disposed in the core and the at least one slot of the plurality of slots. The oscillating heat pipe assembly is in contact with the core and the magnetic field-generating component. The oscillating heat pipe assembly includes a dielectric material, and where the oscillating heat pipe assembly has an in-plane thermal conductivity higher than a through-plane thermal conductivity.

System for thermal management in electrical machines

A component of an electrical machine is disclosed. The component includes a core including a plurality of slots, a magnetic field-generating component disposed in at least one slot of the plurality of slots, and a heat dissipating element disposed in a slot of the plurality of slots, in contact with the magnetic field-generating component. The heat dissipating element includes a thermally conductive material having an in-plane thermal conductivity higher than a through-plane thermal conductivity.

A stator assembly that includes a graphite sheet-like element that has fold(s) so as to define at least two planar sections. The face of one of the planar section abuts a surface of a heat generating location(s) of the stator assembly and a face of another planar section abuts one the tooth or the slot bottom of the stator assembly. Also, a subassembly that includes an electrical machine stator assembly that includes a sheet-like element of a material having high thermal conductivity, wherein a portion of the element abuts the end winding(s) such that the sheet-like element conducts heat to the magnetic core, the stator housing, and/or a winding heat conduction element.

Growing community of inventors

Watervilet, NY, United States of America

Karthik Kumar Bodla