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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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公开(公告)号：US10229777B2
公开(公告)日：2019-03-12
申请号：US15078516
申请日：2016-03-23
Applicant: General Electric Company
Inventor： Min Zou , Francis Johnson , Patel Bhageerath Reddy , James Pellegrino Alexander , Ayman Mohamed Fawzi EL-Refaie , Wanming Zhang
IPC: H01F7/02 , H01F41/02 , B05D7/14 , C23C8/04 , C23C8/26 , H01F1/147 , H02K19/02 , H02K1/02 , H02K1/24 , C22C38/04 , C22C38/30 , C22C38/38 , C21D1/26
Abstract: A magnetic component including at least one region is disclosed. The at least one region includes nitrogen and a concentration of the nitrogen in the at least one region is graded across a dimension of the at least one region. Further, a saturation magnetization in the at least one region is graded across the dimension of the at least one region. Further, a method of varying the magnetization values in at least one region of the magnetic component is disclosed.
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公开(公告)号：US10229776B2
公开(公告)日：2019-03-12
申请号：US15078439
申请日：2016-03-23
Applicant: General Electric Company
Inventor： Francis Johnson , Min Zou , Patel Bhageerath Reddy , James Pellegrino Alexander , Ayman Mohamed Fawzi EL-Refaie
IPC: H02K19/02 , H01F1/147 , H01F7/02 , H01F41/02 , B05D7/14 , C23C8/04 , C23C8/26 , H02K1/02 , H02K1/24 , C21D8/12 , C22C38/04 , C22C38/30 , C22C38/38 , C21D1/26
Abstract: A magnetic component including first and second regions, and a method of varying the magnetization values in different regions of the magnetic component are disclosed. The first and the second regions are characterized by a nitrogen content that is different from each other. At least one of the first region and the second region is partially-magnetic and has a nitrogen content in a range from about 0.1 weight % to about 0.4 weight % of that region. A concentration of carbon, if present, of both the first and second regions is less than about 0.05 weight % of the respective regions.
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公开(公告)号：US10190206B2
公开(公告)日：2019-01-29
申请号：US15460650
申请日：2017-03-16
Applicant: General Electric Company
Inventor： Laura Cerully Dial , Richard DiDomizio , Francis Johnson
IPC: H02K15/12 , H02K19/02 , H01F1/147 , H01F7/02 , C23C8/04 , C21D9/00 , C23C8/26 , H02K19/10 , C22C38/38 , C21D1/06 , C21D1/26
Abstract: A magnetic component having intermixed first and second regions, and a method of preparing that magnetic component are disclosed. The first region includes a magnetic phase and the second region includes a non-magnetic phase. The method includes mechanically masking pre-selected sections of a surface portion of the component by using a nitrogen stop-off material and heat-treating the component in a nitrogen-rich atmosphere at a temperature greater than about 900° C. Both the first and second regions are substantially free of carbon, or contain only limited amounts of carbon; and the second region includes greater than about 0.1 weight % of nitrogen.
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5.发明申请公开(公告)号：US20180183279A1
公开(公告)日：2018-06-28
申请号：US15895743
申请日：2018-02-13
Applicant: General Electric Company
Inventor： Lawrence Bernard Kool , Min Zou , Wanming Zhang , Susan Corah , Christopher Klapper , Francis Johnson , Steve Buresh
CPC classification number: H02K1/04 , B32B15/01 , C22C38/001 , C22C38/06 , C22C38/30 , C22C38/38 , C22C38/54 , C22C38/58 , H01F1/344 , H01F3/02 , H01F41/0233 , H01F2003/106 , H02K1/02 , H02K15/02 , H02K15/12
Abstract: A method includes forming one or more oxide barrier layers on one or more protected portions of a magnetic, metallic body, and converting one or more unprotected portions of the magnetic, metallic body to a less magnetic material by exposing the magnetic metallic body having the one or more oxide barrier layers formed thereon to nitrogen. One or more protected portions of the magnetic, metallic body that are beneath the one or more oxide barrier layers are not converted to the less magnetic material. The method can be used to form one or more layers of a laminated electric motor.
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Patent Agency Ranking
公开(公告)号：US09534817B2
公开(公告)日：2017-01-03
申请号：US13853316
申请日：2013-03-29
Applicant: General Electric Company
IPC: F25B21/00
CPC classification number: F25B21/00 , F25B2321/002 , F25B2321/0023 , Y02B30/66
Abstract: A heat pump is provided that uses multiple stages of MCMs to cause heat transfer between a heat receiving end and a heat transmitting end. Thermal blocks are placed along the direction of heat transfer at locations in the heat pump that preclude the transfer of heat in a direction from the heat transmitting end towards the heat receiving end. The heat pump can be, for example, part of a refrigeration loop or can be connected directly with the object for which heating or cooling is desired. An appliance incorporating such a heat pump is also provided.
Abstract translation: 提供了一种热泵，其使用多级MCM来在热接收端和热传递端之间引起热传递。 热块沿热传递方向放置在热泵的位置，排除热量从热传递端朝向热接收端的方向传递。 热泵可以是例如制冷回路的一部分，或者可以直接与需要加热或冷却的物体连接。 还提供了并入这种热泵的器具。
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公开(公告)号：US20160203899A1
公开(公告)日：2016-07-14
申请号：US15078516
申请日：2016-03-23
Applicant: General Electric Company
Inventor： Min Zou , Francis Johnson , Patel Bhageerath Reddy , James Pellegrino Alexander , Ayman Mohamed Fawzi EL-Refaie , Wanming Zhang
CPC classification number: H01F7/021 , B05D7/14 , C21D1/26 , C21D8/12 , C21D8/1294 , C21D2221/00 , C22C38/04 , C22C38/30 , C22C38/38 , C23C8/04 , C23C8/26 , H01F1/147 , H01F41/0253 , H02K1/02 , H02K1/246 , H02K19/02
Abstract: A magnetic component including at least one region is disclosed. The at least one region includes nitrogen and a concentration of the nitrogen in the at least one region is graded across a dimension of the at least one region. Further, a saturation magnetization in the at least one region is graded across the dimension of the at least one region. Further, a method of varying the magnetization values in at least one region of the magnetic component is disclosed.
Abstract translation: 公开了包括至少一个区域的磁性部件。 所述至少一个区域包括氮气，并且所述至少一个区域中的氮浓度跨越所述至少一个区域的尺寸分级。 此外，至少一个区域中的饱和磁化强度横跨该至少一个区域的尺寸被分级。 此外，公开了改变磁性部件的至少一个区域中的磁化值的方法。
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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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9.发明授权公开(公告)号：US10760168B2
公开(公告)日：2020-09-01
申请号：US15950133
申请日：2018-04-10
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Binil Itty Ipe Kandapallil , Lakshmi Krishnan , Francis Johnson
IPC: B32B5/16 , C25B3/00 , C25D3/56 , C25D15/00 , C25D11/34 , C25C5/02 , C25C7/06 , C25B3/12 , H01F1/00
Abstract: The present invention is directed to composite nanoparticles comprising a metal, a rare earth element, and, optionally, a complexing ligand. The invention is also directed to composite nanoparticles having a core-shell structure and to processes for preparation of composite nanoparticles of the invention.
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公开(公告)号：US10748687B2
公开(公告)日：2020-08-18
申请号：US15918359
申请日：2018-03-12
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Wanming Zhang , Min Zou , Francis Johnson
IPC: H01F1/14 , H01F1/147 , H01F41/02 , H02K1/02 , H02K1/06 , H02K15/02 , H02K1/24 , H01F1/18 , H01F3/02 , H01F3/10
Abstract: A method of forming a component having a variation in saturation magnetization is presented. The method includes selectively diffusing nitrogen into a metallic component of a masked metallic component by exposing the masked metallic component to a nitrogen-rich atmosphere. The masked metallic component includes a patterned oxide layer formed on a surface of the metallic component, and the patterned oxide layer includes an oxide of a metal present in the metallic component. A related component is also presented.
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