公开(公告)号：US20230412094A1

公开(公告)日：2023-12-21

申请号：US18459643

申请日：2023-09-01

Applicant: General Electric Company

Inventor： Kum Kang Huh ,  Rajib Datta ,  Vandana Prabhakar Rallabandi ,  John Russell Yagielski ,  Mohamed Osama

IPC: H02M7/5395 ,  B64D27/12 ,  H02M1/44 ,  H02P25/22 ,  H02P27/08

CPC classification number: H02M7/5395 ,  B64D27/12 ,  H02M1/44 ,  H02P25/22 ,  H02P27/085 ,  B64D2027/026

Abstract: A power system including a power converter system and an electric machine is provided. In one aspect, the power converter system has first and second switching elements. The electric machine includes a first multiphase winding electrically coupled with the first switching elements and a second multiphase winding electrically coupled with the second switching elements. The first and second multiphase windings are arranged and configured to operate electrically opposite in phase with respect to one another. One or more processors control the first switching elements to generate first pulse width modulated (PWM) signals based on received voltage commands to render a first common mode signal and also control the second switching elements to generate second PWM signals based on received voltage commands to render a second common mode signal. The rendered first and second common mode signals have the same or similar waveform with opposite polarity with respect to one another.

公开(公告)号：US11845388B2

公开(公告)日：2023-12-19

申请号：US17325404

申请日：2021-05-20

Applicant: General Electric Company ,  General Electric Deutschland Holding GmbH

Inventor： Kum Kang Huh ,  Mohamed Osama

IPC: B60R16/03 ,  B60L50/13 ,  B64D27/18 ,  F01D15/10 ,  F02C7/275 ,  H02J1/10 ,  H02K11/042 ,  H02P101/30

CPC classification number: B60R16/0307 ,  B60L50/13 ,  B64D27/18 ,  F01D15/10 ,  F02C7/275 ,  H02J1/102 ,  H02K11/042 ,  B60L2200/10 ,  H02P2101/30

Abstract: An AC electrical system for a vehicle and methods of operating the same are provided. In one aspect, an AC electrical system includes a first electric machine mechanically coupled with a first spool of a gas turbine engine and a second electric machine mechanically coupled with a second spool of the gas turbine engine. The system also includes a first AC bus and a second AC bus. A first electrical channel electrically couples the first electric machine to the first AC bus and a second electrical channel electrically couples the second electric machine to the second AC bus. The system also includes one or more connection links and one or more power converters for selectively electrically coupling the first and second electrical channels so that electrical power generated by one electric machine can be converted and shared with the other electric machine and electrical loads of the other channel.

公开(公告)号：US20230130278A1

公开(公告)日：2023-04-27

申请号：US17507866

申请日：2021-10-22

Applicant: General Electric Company ,  General Electric Deutschland Holding GmbH

Inventor： Kum Kang Huh ,  Rajib Datta ,  Vandana Prabhakar Rallabandi ,  John Russell Yagielski ,  Mohamed Osama

IPC: H02M7/5395 ,  H02P27/08 ,  H02P25/22 ,  H02M1/44 ,  B64D27/12

Abstract: A power system including a power converter system and an electric machine is provided. In one aspect, the power converter system has first and second switching elements. The electric machine includes a first multiphase winding electrically coupled with the first switching elements and a second multiphase winding electrically coupled with the second switching elements. The first and second multiphase windings are arranged and configured to operate electrically opposite in phase with respect to one another. One or more processors control the first switching elements to generate first pulse width modulated (PWM) signals based on received voltage commands to render a first common mode signal and also control the second switching elements to generate second PWM signals based on received voltage commands to render a second common mode signal. The rendered first and second common mode signals have the same or similar waveform with opposite polarity with respect to one another.

公开(公告)号：US11629663B2

公开(公告)日：2023-04-18

申请号：US17587233

申请日：2022-01-28

Applicant: General Electric Company

Inventor： Joshua Tyler Mook ,  Michael Thomas Gansler ,  Scott Douglas Waun ,  Kevin Michael VandeVoorde ,  Aigbedion Akwara ,  Michael Robert Notarnicola ,  Jason Joseph Bellardi ,  Mohammed El Hacin Sennoun ,  Mary Kathryn Thompson ,  Mohamed Osama

IPC: F02G1/055 ,  F02G1/04 ,  F28D9/04 ,  F28F7/02 ,  F28F13/00 ,  F28F13/14 ,  F02G1/053 ,  F02G1/057 ,  F02G1/047 ,  F02G1/05 ,  F02G1/044 ,  B33Y80/00 ,  F23R3/00 ,  F02G3/00 ,  F02G1/043 ,  F28D21/00

Abstract: An energy conversion apparatus may include an engine assembly, such as a monolithic engine assembly. The engine assembly may include a first monolithic body segment and a plurality of second monolithic body segments directly coupled or directly couplable to the first monolithic body segment. The first monolithic body segment may define a combustion chamber and a recirculation pathway in fluid communication with the combustion chamber. The recirculation pathway may be configured to recirculate combustion gas through the combustion chamber. The plurality of second monolithic body segments may respectively define at least a portion of a piston chamber and a plurality of working-fluid pathways fluidly communicating with the piston chamber.

公开(公告)号：US20220069655A1

公开(公告)日：2022-03-03

申请号：US17007064

申请日：2020-08-31

Applicant: General Electric Company

Inventor： Mohamed Osama ,  Jose Maria Rey Villazon ,  Thomas Helmut Ripplinger

IPC: H02K3/24

Abstract: A stator core is provided that can define a plurality of core slots in a surface thereof. The core slots can extend between a first and a second end portion of the stator core. A winding can be housed in the core slots. The winding can define a channel through at least a portion thereof. A cooling system can be operably coupled with the channel and can be configured to move a cooling fluid through the channel. A turbulator can be positioned within the channel. The turbulator can be within a flowpath of the cooling fluid and can be integrally formed with the winding.

公开(公告)号：US20220069641A1

公开(公告)日：2022-03-03

申请号：US17001807

申请日：2020-08-25

Applicant: General Electric Company

Inventor： Mohamed Osama

IPC: H02K1/14 ,  H02K16/04 ,  H02K11/33 ,  H02K3/28 ,  H02K3/12 ,  H02K3/52 ,  H02K5/02 ,  H02K5/08 ,  H02K7/14 ,  H02J1/12

Abstract: A high voltage electric machine and power distribution system including one or more of such electric machines are provided. In one aspect, a high voltage electric machine includes a stator, a rotor, and a housing encasing at least a portion of the stator and rotor. The stator is modularized into cascaded voltage stator modules. The stator modules are galvanically isolated from one another by intermodular separators. At least one intermodular separator is positioned between each adjacent pair of stator modules. The stator modules are also galvanically isolated from the housing by a housing separator. The housing separator is positioned between the stator modules and the housing. Each stator module has an associated set of windings that are wound only within their associated stator module.

公开(公告)号：US11022068B2

公开(公告)日：2021-06-01

申请号：US16878744

申请日：2020-05-20

Applicant: General Electric Company

Inventor： Joshua Tyler Mook ,  Kevin Michael VandeVoorde ,  Aigbedion Akwara ,  Michael Robert Notarnicola ,  Jason Joseph Bellardi ,  Mohammed El Hacin Sennoun ,  Mohamed Osama ,  Zachary William Nagel

IPC: F02G1/055 ,  F02G1/053 ,  F02G1/043 ,  F28D9/04 ,  F02G1/04 ,  F28F7/02 ,  F28F13/00 ,  F28F13/14 ,  F02G1/057 ,  F02G1/047 ,  F02G1/05 ,  F02G1/044 ,  F28D21/00

Abstract: A monolithic heater body may include a combustor body, a hot-side heat exchanger body, and an eductor body. The combustor body may define a combustion chamber and a conditioning conduit circumferentially surrounding the combustion chamber. The conditioning conduit may fluidly communicate with the combustion chamber at a distal portion of the combustion chamber. The hot-side heat exchanger body may define a hot-side heat exchanger that includes a heating fluid pathway fluidly communicating with a proximal portion of the combustion chamber. The eductor body may define an eduction pathway fluidly communicating with a downstream portion of the heating fluid pathway and a proximal portion of the conditioning conduit.

公开(公告)号：US10910916B2

公开(公告)日：2021-02-02

申请号：US15827335

申请日：2017-11-30

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Anoop Kumar Jassal ,  Mohamed Osama ,  Francesco Papini ,  Narendra Digamber Joshi

IPC: H02K9/08 ,  H02K3/22 ,  H02K3/12 ,  H02K1/32 ,  H02K3/24 ,  H02K9/197 ,  H02K9/00 ,  H02K3/30 ,  H02K3/34

Abstract: An electric machine comprising a rotor, a stator, a plurality of bare conductors forming a plurality of windings in at least one of the stator and the rotor, and a fluid in direct physical contact with a plurality of outer surfaces of the plurality of bare conductors, wherein the fluid is electrically insulating and provides direct fluid cooling, to provide cooling for the plurality of bare conductors and electrical insulation between consecutive bare conductors of the plurality of bare conductors.

公开(公告)号：US10724470B1

公开(公告)日：2020-07-28

申请号：US16418129

申请日：2019-05-21

Applicant: General Electric Company

Inventor： Joshua Tyler Mook ,  Michael Thomas Gansler ,  Scott Douglas Waun ,  Kevin Michael VandeVoorde ,  Aigbedion Akwara ,  Michael Robert Notarnicola ,  Jason Joseph Bellardi ,  Mohammed El Hacin Sennoun ,  Mohamed Osama

IPC: F02G1/055 ,  F02G1/044 ,  F02G1/057

Abstract: An aspect of the present disclosure is directed to a system for energy conversion. The system includes a closed cycle engine containing a volume of working fluid. The engine includes an expansion chamber and a compression chamber each separated by a piston attached to a connection member of a piston assembly. The engine further includes a plurality of heater conduits extended from the expansion chamber. The engine includes a plurality of chiller conduits extended from the compression chamber. The expansion chamber and heater conduits are fluidly connected to the compression chamber and chiller conduits via a walled conduit.

公开(公告)号：US10256708B2

公开(公告)日：2019-04-09

申请号：US15272899

申请日：2016-09-22

Applicant: General Electric Company

Inventor： Francesco Papini ,  Mohamed Osama ,  Anoop Kumar Jassal

IPC: H02K21/14 ,  H02K19/02 ,  H02K1/27 ,  H02K29/03 ,  H02K1/24

Abstract: An electric machine includes a stator and a rotor operable with the stator. The rotor includes at least one pole section, the pole section defining a direct axis in a flux barrier having a first end and a second end. Each of the first and second ends are positioned proximate to the stator. The first end defines a first angular position relative to the direct axis and the second end defines a second angular position relative to the direct axis. The first angular position is different in magnitude than the second angular position to reduce a torque ripple or torque oscillation of the electric machine.