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公开(公告)号：US20190279795A1
公开(公告)日：2019-09-12
申请号：US15918359
申请日：2018-03-12
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Wanming Zhang , Min Zou , Francis Johnson
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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公开(公告)号：US20180337565A1
公开(公告)日：2018-11-22
申请号：US15598408
申请日：2017-05-18
Applicant: General Electric Company
Inventor： Patel Bhageerath Reddy , Min Zou , Ayman Mohamed Fawzi EL-Refaie , Francis Johnson
Abstract: An AC electric machine that includes a dual magnetic phase material ring is disclosed. The AC electric machine includes a stator assembly and a rotor assembly positioned within the stator assembly and configured to rotate relative thereto, the rotor assembly comprising a rotor core including a stack of rotor laminations that collectively form the rotor core, the rotor core including a plurality of rotor poles separated by gaps therebetween. The AC electric machine also includes a dual magnetic phase material ring positioned about the stack of rotor laminations, the dual magnetic phase material ring comprising a first ring portion comprising a magnetic portion and a second ring portion comprising a non-magnetic portion.
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公开(公告)号：US09803139B1
公开(公告)日：2017-10-31
申请号：US15191662
申请日：2016-06-24
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Peter John Bonitatibus, Jr. , Francis Johnson , Min Zou
CPC classification number: C09K13/02 , C23C8/04 , C23C8/26 , C23F1/00 , C23F1/44 , C23G1/32 , H01F1/147
Abstract: A method for selectively removing an aluminum-silicon coating fired on a surface of a metallic structure is described. The method includes the step of contacting the coating with molten potassium hydroxide (KOH), under conditions sufficient to remove the coating without substantially affecting the metallic surface. Methods for preparing a magnetic component are also described. They involve masking pre-selected regions of the surface of the component, using an aluminum-silicon coating that is fired onto the surface, prior to a nitriding step. The coating is then removed according to the procedure outlined herein.
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公开(公告)号：US20160203898A1
公开(公告)日：2016-07-14
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
CPC classification number: H01F7/021 , B05D7/14 , C21D1/26 , C21D8/1255 , C21D8/1277 , 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 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.
Abstract translation: 公开了包括第一和第二区域的磁性部件以及改变磁性部件的不同区域中的磁化值的方法。 第一和第二区域的特征是氮含量彼此不同。 第一区域和第二区域中的至少一个是部分磁性的，并且氮含量在该区域的约0.1重量％至约0.4重量％的范围内。 第一和第二区域的碳浓度（如果存在）小于各个区域的约0.05重量％。
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公开(公告)号：US20160161156A1
公开(公告)日：2016-06-09
申请号：US14904961
申请日：2014-07-24
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Mamatha Nagesh , Atanu Saha , Francis Johnson
IPC: F25B21/00
CPC classification number: F25B21/00 , F25B2321/002 , F25B2321/0023 , Y02B30/66
Abstract: A magneto-caloric assembly is provided. The assembly includes a first region comprising a first magneto-caloric material, a second region disposed on the first region and comprising a second magneto-caloric material and a first matrix material, and a third region disposed on the second region and comprising a thermally conductive material.
Abstract translation: 提供了磁热组件。 该组件包括第一区域，该第一区域包括第一磁热量材料，第二区域，设置在第一区域上，并且包括第二磁热量材料和第一基质材料，第三区域设置在第二区域上，并且包括导热 材料。
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Patent Agency Ranking
公开(公告)号：US20150144287A1
公开(公告)日：2015-05-28
申请号：US14091386
申请日：2013-11-27
Applicant: General Electric Company
Inventor： Qi Zhao , Stephen Francis Rutkowski , Francis Johnson , Wanming Zhang , Min Zou
CPC classification number: B22C1/02 , B22C3/00 , B22C9/02 , B22C9/04 , B22C13/085
Abstract: A shell mold is described. The shell mold includes a facecoat, a sealcoat, and a support disposed in between the facecoat and the sealcoat. The support includes a stucco in a concentration greater than about 40 volume percent of the support. The stucco includes a material that has a thermal conductivity greater than about 285 W/m-K.
Abstract translation: 描述了壳模。 壳模包括面涂层，密封涂层和设置在面涂层和密封涂层之间的支撑体。 支持物包括浓度大于载体的约40体积％的灰泥。 灰泥包括导热率大于约285W / m-K的材料。
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公开(公告)号：US20140290273A1
公开(公告)日：2014-10-02
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：US20140157793A1
公开(公告)日：2014-06-12
申请号：US13707756
申请日：2012-12-07
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Francis Johnson , Min Zou , Ming Yin , Raghavendra Rao Adharapurapu , Christopher Klapper , Vijay Kumar Srivastava
CPC classification number: C09K5/00 , C22C45/006 , C22C45/04 , C22F1/16 , F25B21/00 , F25D11/00 , H01F1/015 , Y02B30/66
Abstract: A novel magneto caloric material (MCM) is provided that can be used in, for example, a regenerator of a heat pump, appliance, air conditioning system, and other heating and/or cooling devices. The MCM is a type of Heusler alloy, has an L21 crystal structural prototype, and can undergo a reversible phase transformation between a low temperature, low magnetization Martensite phase and a high temperature, high magnetization Austenite phase to exhibit an inverse magneto caloric effect upon application of a sufficient magnetic field. A process of annealing of the alloy is also provided that can be used to adjust the temperature at which this phase transformation occurs. The present invention includes the alloy as subjected to such annealing.
Abstract translation: 提供了可用于例如热泵，电器，空调系统以及其它加热和/或冷却装置的再生器的新颖的磁热量材料（MCM）。 MCM是一种Heusler合金，具有L21晶体结构原型，并且可以在低温，低磁化马氏体相和高温高磁化奥氏体相之间进行可逆相变，以在应用时呈现逆磁热量效应 的足够的磁场。 还提供了可用于调节发生该相变的温度的合金退火过程。 本发明包括进行这种退火的合金。
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公开(公告)号：US10931157B2
公开(公告)日：2021-02-23
申请号：US15972894
申请日：2018-05-07
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Francis Johnson , Mohamed Osama , Francesco Papini
Abstract: A magnetic component having a unitary structure, a transverse flux electric machine having the magnetic component, and a method of making the magnetic component are disclosed. The unitary structure of the magnetic component includes a magnetic region and a non-magnetic region. The magnetic region includes a magnetic phase and an electrically insulating phase. The non-magnetic region includes a non-magnetic phase. The magnetic phase includes a metallic material and the non-magnetic phase includes a nitrogenated metallic material formed by a controlled nitrogenation of the metallic material.
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公开(公告)号：US20190341821A1
公开(公告)日：2019-11-07
申请号：US15972894
申请日：2018-05-07
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Francis Johnson , Mohamed Osama , Francesco Papini
Abstract: A magnetic component having a unitary structure, a transverse flux electric machine having the magnetic component, and a method of making the magnetic component are disclosed. The unitary structure of the magnetic component includes a magnetic region and a non-magnetic region. The magnetic region includes a magnetic phase and an electrically insulating phase. The non-magnetic region includes a non-magnetic phase. The magnetic phase includes a metallic material and the non-magnetic phase includes a nitrogenated metallic material formed by a controlled nitrogenation of the metallic material.
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