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公开(公告)号：US20210197273A1
公开(公告)日：2021-07-01
申请号：US17199793
申请日：2021-03-12
Applicant: General Electric Company
Inventor： Francis Johnson , Mohamed Osama , Anoop Kumar Jassal , Raghavendra Rao Adharapurapu
IPC: B22F10/20 , H01F41/04 , B33Y10/00 , B33Y40/00 , H01F1/20 , B33Y80/00 , B22F3/24 , C21D1/26 , H02K1/02 , H02K15/00 , H02K15/12 , C21D6/00 , C21D9/02 , H02K15/02 , B22F10/00
Abstract: A method of heat-treating an additively-manufactured ferromagnetic component is presented and a related ferromagnetic component is presented. A saturation flux density of a heat-treated ferromagnetic component is greater than a saturation flux density of an as-formed ferromagnetic component. The heat-treated ferromagnetic component is further characterized by a plurality of grains such that at least 25% of the plurality of grains have a median grain size less than 10 microns and 25% of the plurality of grains have a median grain size greater than 25 microns.
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公开(公告)号：US20240348130A1
公开(公告)日：2024-10-17
申请号：US18753464
申请日：2024-06-25
Applicant: General Electric Company
Inventor： Joseph John Zierer , Brian Magann Rush , Karthik K. Bodla , Andrew Thomas Cross , Vandana Prabhakar Rallabandi , Konrad Roman Weeber , Anoop Kumar Jassal
CPC classification number: H02K9/20 , H02K1/165 , H02K1/20 , H02K3/12 , H02K3/24 , H02K5/18 , H02K5/203
Abstract: 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.
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公开(公告)号：US20190311852A1
公开(公告)日：2019-10-10
申请号：US15949551
申请日：2018-04-10
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Francis Johnson , Mohamed Osama , Anoop Kumar Jassal , Raghavendra Rao Adharapurapu
Abstract: A method of heat-treating an additively-manufactured ferromagnetic component is presented and a related ferromagnetic component is presented. A saturation flux density of a heat-treated ferromagnetic component is greater than a saturation flux density of an as-formed ferromagnetic component. The heat-treated ferromagnetic component is further characterized by a plurality of grains such that at least 25% of the plurality of grains have a median grain size less than 10 microns and 25% of the plurality of grains have a median grain size greater than 25 microns.
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公开(公告)号：US20220069672A1
公开(公告)日：2022-03-03
申请号：US17390009
申请日：2021-07-30
Applicant: General Electric Company
Inventor： Joseph John Zierer , Brian Magann Rush , Karthik K. Bodla , Andrew Thomas Cross , Vandana Prabhakar Rallabandi , Konrad Roman Weeber , Anoop Kumar Jassal
Abstract: 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.
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公开(公告)号：US10946444B2
公开(公告)日：2021-03-16
申请号：US15949551
申请日：2018-04-10
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Francis Johnson , Mohamed Osama , Anoop Kumar Jassal , Raghavendra Rao Adharapurapu
IPC: B22F3/105 , B33Y10/00 , B22F3/24 , H01F41/04 , B33Y40/00 , H01F1/20 , B33Y80/00 , C21D1/26 , H02K1/02 , H02K15/00 , H02K15/12 , C21D6/00 , C21D9/02 , H02K15/02 , H02K7/00 , C22C19/07 , C22C1/04 , B22F5/00 , C22C33/02
Abstract: A method of heat-treating an additively-manufactured ferromagnetic component is presented and a related ferromagnetic component is presented. A saturation flux density of a heat-treated ferromagnetic component is greater than a saturation flux density of an as-formed ferromagnetic component. The heat-treated ferromagnetic component is further characterized by a plurality of grains such that at least 25% of the plurality of grains have a median grain size less than 10 microns and 25% of the plurality of grains have a median grain size greater than 25 microns.
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Patent Agency Ranking
公开(公告)号：US20190165652A1
公开(公告)日：2019-05-30
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
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
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公开(公告)号：US20180083520A1
公开(公告)日：2018-03-22
申请号：US15272899
申请日：2016-09-22
Applicant: General Electric Company
Inventor： Francesco Papini , Mohamed Osama , Anoop Kumar Jassal
CPC classification number: H02K21/14 , H02K1/246 , H02K1/2706 , H02K1/276 , H02K1/2786 , H02K19/02 , H02K29/03
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.
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公开(公告)号：US12040690B2
公开(公告)日：2024-07-16
申请号：US17390009
申请日：2021-07-30
Applicant: General Electric Company
Inventor： Joseph John Zierer , Brian Magann Rush , Karthik K. Bodla , Andrew Thomas Cross , Vandana Prabhakar Rallabandi , Konrad Roman Weeber , Anoop Kumar Jassal
CPC classification number: H02K9/20 , H02K1/165 , H02K1/20 , H02K3/12 , H02K3/24 , H02K5/18 , H02K5/203
Abstract: 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.
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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.
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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
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.
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