公开(公告)号：US09673667B2

公开(公告)日：2017-06-06

申请号：US14337469

申请日：2014-07-22

Applicant: General Electric Company

Inventor： Tsarafidy Raminosoa ,  James Pellegrino Alexander ,  Ayman Mohamed Fawzi EL-Refaie

IPC: H02K3/30 ,  H02K1/17 ,  H02K21/44 ,  H02K15/03 ,  H02K15/12 ,  H02K21/38

CPC classification number: H02K1/17 ,  H02K3/30 ,  H02K15/03 ,  H02K15/12 ,  H02K21/38 ,  H02K21/44

Abstract: A permanent magnet electrical machine includes a stator having conductive windings wound thereon and one or more permanent magnets embedded in the stator. A magnetic keeper element is positioned on the stator so as to form a magnetic flux path with the permanent magnets, with the magnetic keeper element closing the magnetic flux path of the permanent magnets by providing a low reluctance flux path to magnetic flux generated by the permanent magnets. A vacuum pressure impregnation (VPI) process is performed on the stator to increase a thermal conductivity of the windings, with the VPI process including a curing step that is performed at a selected temperature. The magnetic keeper element sets an operating point of the permanent magnets to an internal flux density level above a demagnetization threshold associated with the selected temperature at which the curing step is performed.

公开(公告)号：US20160294236A1

公开(公告)日：2016-10-06

申请号：US14676587

申请日：2015-04-01

Applicant: GENERAL ELECTRIC COMPANY

Inventor： James Pellegrino Alexander ,  Kevin Michael Grace ,  Patel Bhageerath Reddy

IPC: H02K1/28 ,  H02K19/10

CPC classification number: H02K15/022 ,  H02K1/246 ,  H02K19/103

Abstract: A synchronous reluctance machine includes a rotor having a first plate, a second plate, a first set of rotor poles, and a first set of axial stiffeners. Each rotor pole of the first set of rotor poles includes a first plurality of laminations axially stacked between the first plate and the second plate, and each lamination of the first plurality of laminations includes first channels configured to carry magnetic flux and a first plurality of passages spaced between the first channels. Each axial stiffener of the first set of axial stiffeners is disposed within a respective passage of the first plurality of passages. A first end of each axial stiffener of the first set of axial stiffeners interfaces with the first plate, and a second end of each axial stiffener of the first set of axial stiffeners interfaces with the second plate.

Abstract translation: 同步磁阻电机包括具有第一板，第二板，第一组转子磁极和第一组轴向加强件的转子。 第一组转子极的每个转子极包括轴向堆叠在第一板和第二板之间的第一多个叠片，并且第一多个叠片的每个层叠包括构造成承载磁通量的第一通道和第一多个通道 间隔在第一通道之间。 第一组轴向加强件的每个轴向加强件设置在第一多个通道的相应通道内。 第一组轴向加强件的每个轴向加强件的第一端与第一板接合，并且第一组轴向加强件的每个轴向加强件的第二端与第二板接合。

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

IPC: H01F7/02 ,  H01F41/02 ,  B05D7/14

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％。

公开(公告)号：US20150035402A1

公开(公告)日：2015-02-05

申请号：US13958693

申请日：2013-08-05

Applicant: General Electric Company

Inventor： Patel Bhageerath Reddy ,  Ayman Mohamed Fawzi EL-Refaie ,  Kum-Kang Huh ,  James Pellegrino Alexander

IPC: H02K1/27 ,  H02K15/03

CPC classification number: H02K1/272 ,  H02K1/30 ,  H02K15/03 ,  H02K21/16 ,  H02K29/03 ,  H02K2201/06 ,  Y10T29/49012

Abstract: An internal permanent magnet machine includes a rotor assembly having a shaft comprising a plurality of protrusions extending radially outward from a main shaft body and being formed circumferentially about the main shaft body and along an axial length of the main shaft body. A plurality of stacks of laminations are arranged circumferentially about the shaft to receive the plurality of protrusions therein, with each stack of laminations including a plurality of lamination groups arranged axially along a length of the shaft and with permanent magnets being disposed between the stacks of laminations. Each of the laminations includes a shaft protrusion cut formed therein to receive a respective shaft protrusion and, for each of the stacks of laminations, the shaft protrusion cuts formed in the laminations of a respective lamination group are angularly offset from the shaft protrusion cuts formed in the laminations in an adjacent lamination group.

Abstract translation: 一种内置永久磁铁机，其特征在于，具有转子组件，该转子组件具有从主轴体径向向外延伸的多个突起，并且沿着主轴体的轴向长度形成在周向上。 多个叠片堆叠围绕轴周向地布置以容纳其中的多个突起，每个叠片堆叠包括沿轴的长度轴向布置的多个层压组，并且永磁体设置在叠片叠层之间 。 每个叠片包括形成在其中的轴突起切口，以接收相应的轴突起，并且对于每个叠片叠层，形成在相应层叠组的叠片中的轴突起切口与形成在其中的轴突起切口成角度地偏移 相邻层压组中的叠片。

公开(公告)号：US10583409B2

公开(公告)日：2020-03-10

申请号：US15087712

申请日：2016-03-31

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Ashraf Said Atalla ,  Klaus Gebauer ,  James Pellegrino Alexander ,  David Allan Torrey

IPC: B01F13/00 ,  B01F13/08 ,  H02K11/33 ,  H02K11/21 ,  H02K21/24 ,  H02K21/12 ,  C12M1/06 ,  H02K11/24

Abstract: The system and method of the invention pertains to an axial flux stator is implemented to replace the drive-end magnets and the drive motor. The axial flux stator comprises a control circuit to control the voltage and current provided to the stator, to measure the torque and speed of rotation, and to measure the magnetic flux and magnetic flux density produced by the axial flux stator and impeller magnets, individually or in combination. The axial flux stator comprises a plurality of current carrying elements to produce magnetic flux in an axial direction and drive the impeller.

公开(公告)号：US09680344B2

公开(公告)日：2017-06-13

申请号：US14940498

申请日：2015-11-13

Applicant: General Electric Company

Inventor： Ashraf Said Atalla ,  Manoj Ramprasad Shah ,  Satish Prabhakaran ,  James Pellegrino Alexander

IPC: H02K17/12 ,  H02K3/28 ,  H02K11/04 ,  H02K11/00 ,  H02P27/04

CPC classification number: H02K3/28 ,  H02K11/0094 ,  H02K11/04 ,  H02K11/20 ,  H02K11/25 ,  H02K19/10 ,  H02K19/34 ,  H02K2213/09 ,  H02P25/18 ,  H02P25/22 ,  H02P27/04

Abstract: An electrical machine is provided. The electrical machine includes a stator, a rotor, and a plurality of switches. The stator includes main windings and auxiliary windings. The rotor is couplable to a prime mover configured to turn the rotor relative to the stator to generate at least six phases of alternating current (AC) power at the main windings. The plurality of switches is respectively coupled between the auxiliary windings and groups of the main windings. The plurality of switches is configured to convert the at least six phases to three phases when the plurality of switches is closed.

公开(公告)号：US09287742B2

公开(公告)日：2016-03-15

申请号：US13958693

申请日：2013-08-05

Applicant: General Electric Company

Inventor： Patel Bhageerath Reddy ,  Ayman Mohamed Fawzi EL-Refaie ,  Kum-Kang Huh ,  James Pellegrino Alexander

IPC: H02K21/12 ,  H02K1/27 ,  H02K15/03 ,  H02K21/16 ,  H02K29/03

CPC classification number: H02K1/272 ,  H02K1/30 ,  H02K15/03 ,  H02K21/16 ,  H02K29/03 ,  H02K2201/06 ,  Y10T29/49012

Abstract: An internal permanent magnet machine includes a rotor assembly having a shaft comprising a plurality of protrusions extending radially outward from a main shaft body and being formed circumferentially about the main shaft body and along an axial length of the main shaft body. A plurality of stacks of laminations are arranged circumferentially about the shaft to receive the plurality of protrusions therein, with each stack of laminations including a plurality of lamination groups arranged axially along a length of the shaft and with permanent magnets being disposed between the stacks of laminations. Each of the laminations includes a shaft protrusion cut formed therein to receive a respective shaft protrusion and, for each of the stacks of laminations, the shaft protrusion cuts formed in the laminations of a respective lamination group are angularly offset from the shaft protrusion cuts formed in the laminations in an adjacent lamination group.

Abstract translation: 一种内置永久磁铁机，其特征在于，具有转子组件，该转子组件具有从主轴体径向向外延伸的多个突起，并且沿着主轴主体的轴向长度形成在周向上。 多个叠片堆叠围绕轴周向地布置以容纳其中的多个突起，每个叠片堆叠包括沿轴的长度轴向布置的多个层压组，并且永磁体设置在叠片叠层之间 。 每个叠片包括形成在其中的轴突起切口，以接收相应的轴突起，并且对于每个叠片叠层，形成在相应层叠组的叠片中的轴突起切口与形成在其中的轴突起切口成角度地偏移 相邻层压组中的叠片。

公开(公告)号：US20150123506A1

公开(公告)日：2015-05-07

申请号：US14070795

申请日：2013-11-04

Applicant: General Electric Company

Inventor： Ken Ivcar Salas Nobrega ,  Jeremy Daniel Van Dam ,  Manoj Ramprasad Shah ,  William Dwight Gerstler ,  Tsarafidy Raminosoa ,  Edward John Flett ,  Patel Bhageerath Reddy ,  James Pellegrino Alexander

IPC: H02K1/27 ,  H02K16/02 ,  H02K5/132

CPC classification number: H02K1/274 ,  H02K1/276 ,  H02K1/278 ,  H02K5/132 ,  H02K16/02 ,  Y02E20/16

Abstract: A permanent magnet machine, a rotor assembly for the machine, and a pump assembly. The permanent magnet machine includes a stator assembly including a stator core configured to generate a magnetic field and extending along a longitudinal axis with an inner surface defining a cavity and a rotor assembly including a rotor core and a rotor shaft. The rotor core is disposed inside the cavity and configured to rotate about the longitudinal axis. The rotor assembly further including a plurality of permanent magnets for generating a magnetic field which interacts with the stator magnetic field to produce torque. The permanent magnets configured as one of internal or surface mounted. The rotor assembly also including a plurality of retaining clips configured to retain the plurality of permanent magnets relative to the rotor core. The pump assembly including an electric submersible pump and a permanent magnet motor for driving the pump.

Abstract translation: 永磁机，用于机器的转子组件和泵组件。 永磁体机器包括定子组件，该定子组件包括定子铁心，该定子铁心构造成产生磁场并且沿纵向轴线延伸，内表面限定空腔，转子组件包括转子芯和转子轴。 转子芯设置在空腔内并且构造成围绕纵向轴线旋转。 转子组件还包括多个永磁体，用于产生与定子磁场相互作用以产生转矩的磁场。 永久磁铁被配置为内部或表面安装的一个。 转子组件还包括多个保持夹，其构造成相对于转子芯保持多个永磁体。 泵组件包括用于驱动泵的电潜泵和永磁电动机。

公开(公告)号：US20150028718A1

公开(公告)日：2015-01-29

申请号：US13949406

申请日：2013-07-24

Applicant: General Electric Company

Inventor： Tsarafidy Raminosoa ,  James Pellegrino Alexander ,  Ayman Mohamed Fawzi EL-Refaie ,  David A. Torrey

IPC: H02K1/22 ,  H02K15/02

CPC classification number: H02K1/24 ,  H02K1/146 ,  H02K1/22 ,  H02K1/246 ,  H02K15/02 ,  H02K15/022 ,  H02K2205/12 ,  Y10T29/49012

Abstract: An electrical machine exhibiting reduced friction and windage losses is disclosed. The electrical machine includes a stator and a rotor assembly configured to rotate relative to the stator, wherein the rotor assembly comprises a rotor core including a plurality of salient rotor poles that are spaced apart from one another around an inner hub such that an interpolar gap is formed between each adjacent pair of salient rotor poles, with an opening being defined by the rotor core in each interpolar gap. Electrically non-conductive and non-magnetic inserts are positioned in the gaps formed between the salient rotor poles, with each of the inserts including a mating feature formed an axially inner edge thereof that is configured to mate with a respective opening being defined by the rotor core, so as to secure the insert to the rotor core against centrifugal force experienced during rotation of the rotor assembly.

Abstract translation: 公开了一种表现出减小的摩擦和风阻损失的电机。 电机包括定子和配置成相对于定子旋转的转子组件，其中转子组件包括转子芯，转子芯包括多个突出的转子极，所述转子磁极相对于内部毂毂彼此间隔开，使得极间间隙为 形成在每个相邻的一对突出的转子极之间，在每个极间隙中开口由转子芯限定。 电非导电和非磁性插入件定位在形成在凸极转子极之间的间隙中，每个插入件包括形成其轴向内部边缘的配合特征，其配置成与由转子限定的相应开口相配合 芯部，以便抵抗转子组件旋转期间经受的离心力将插入件固定到转子芯体上。

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.