ROTOR APPARATUS AND METHODS OF IMPROVING MAGNETIZATION IN ELECTRIC MACHINES
    1.
    发明申请
    ROTOR APPARATUS AND METHODS OF IMPROVING MAGNETIZATION IN ELECTRIC MACHINES 有权
    转子装置及改进电机磁化的方法

    公开(公告)号:US20140097721A1

    公开(公告)日:2014-04-10

    申请号:US13647490

    申请日:2012-10-09

    CPC classification number: H02K1/28 H02K1/32 H02K7/003 H02K17/20 Y10T29/49012

    Abstract: Induction motors may have a rotor that includes a shaft and a plurality of rotor laminations. The plurality of rotor laminations may have a central bore sized to receive the shaft, and the shaft may have a laminated portion that extends throughout the central bore. In other embodiments, the plurality of rotor laminations may have a very small or no central bore, and the shaft may include first and second end pieces respectively attached on opposite sides of the plurality of rotor laminations. In some embodiments, the first and second end shaft pieces may be attached to the rotor laminations with a through bolt that passes through the rotor laminations via a central bore sized no larger than needed to receive the through bolt, allowing each of the rotor laminations to have a larger laminated surface area. Methods of assembling a rotor are also provided, as are other aspects.

    Abstract translation: 感应电动机可以具有包括轴和多个转子叠片的转子。 多个转子叠片可以具有尺寸适于容纳轴的中心孔,并且轴可以具有延伸穿过中心孔的层压部分。 在其他实施例中,多个转子叠片可以具有非常小的或不具有中心孔,并且该轴可以包括分别附接在多个转子叠片的相对侧上的第一和第二端片。 在一些实施例中,第一端轴件和第二端轴件可以通过穿过转子叠片的贯穿螺栓连接到转子叠片上,中心孔径不大于接收贯穿螺栓所需的中心孔,允许每个转子叠片 具有较大的层压表面积。 还提供了组装转子的方法,以及其它方面。

    ROTOR ASSEMBLY AND ELECTRODYNAMIC MACHINE WITH AXIAL VENTS FOR HEAT TRANSFER

    公开(公告)号:US20180175687A1

    公开(公告)日:2018-06-21

    申请号:US15386561

    申请日:2016-12-21

    Inventor: Nicholas G. Lang

    CPC classification number: H02K1/32 H02K17/16

    Abstract: A rotor assembly for an electrodynamic machine includes a lamination section with rotor laminations formed to define annular arrays of axial vents and rotor slots, with rotor conductor bars being disposed in the rotor slots, an end connector supported by the rotor conductor bars, wherein an axial space is formed between the end connector and the lamination section, and an annular guiding element arranged in the axial space between the end connector and the lamination section for guiding a cooling fluid flow in an axial direction.

    Rotor apparatus and methods of improving magnetization in electric machines
    3.
    发明授权
    Rotor apparatus and methods of improving magnetization in electric machines 有权
    改进电机磁化的转子装置及方法

    公开(公告)号:US09024501B2

    公开(公告)日:2015-05-05

    申请号:US13647490

    申请日:2012-10-09

    CPC classification number: H02K1/28 H02K1/32 H02K7/003 H02K17/20 Y10T29/49012

    Abstract: Induction motors may have a rotor that includes a shaft and a plurality of rotor laminations. The plurality of rotor laminations may have a central bore sized to receive the shaft, and the shaft may have a laminated portion that extends throughout the central bore. In other embodiments, the plurality of rotor laminations may have a very small or no central bore, and the shaft may include first and second end pieces respectively attached on opposite sides of the plurality of rotor laminations. In some embodiments, the first and second end shaft pieces may be attached to the rotor laminations with a through bolt that passes through the rotor laminations via a central bore sized no larger than needed to receive the through bolt, allowing each of the rotor laminations to have a larger laminated surface area. Methods of assembling a rotor are also provided, as are other aspects.

    Abstract translation: 感应电动机可以具有包括轴和多个转子叠片的转子。 多个转子叠片可以具有尺寸适于容纳轴的中心孔,并且轴可以具有延伸穿过中心孔的层压部分。 在其他实施例中,多个转子叠片可以具有非常小的或不具有中心孔,并且该轴可以包括分别附接在多个转子叠片的相对侧上的第一和第二端片。 在一些实施例中,第一端轴件和第二端轴件可以通过穿过转子叠片的贯穿螺栓连接到转子叠片上,中心孔径不大于接收贯穿螺栓所需的中心孔,允许每个转子叠片 具有较大的层压表面积。 还提供了组装转子的方法,以及其它方面。

    RADIAL MAGNETIC VIBRATION DAMPING APPARATUS, BEARING SUPPORT ASSEMBLIES, AND OPERATIONAL METHODS
    4.
    发明申请
    RADIAL MAGNETIC VIBRATION DAMPING APPARATUS, BEARING SUPPORT ASSEMBLIES, AND OPERATIONAL METHODS 有权
    径向磁力振动阻尼装置,轴承支撑装置和操作方法

    公开(公告)号:US20140111039A1

    公开(公告)日:2014-04-24

    申请号:US13654561

    申请日:2012-10-18

    CPC classification number: F16C27/02 F16C17/04 H02K5/24 H02K7/08 H02K7/09

    Abstract: A bearing support assembly adapted to support and damp radial vibration of a rotor shaft of a vertical motor is disclosed. The bearing support assembly has a thrust bearing adapted to couple to a rotor shaft and carry axial thrust loads along an axial axis, and a radial magnetic damping apparatus having one or more magnetic field-producing members adapted to provide a radially-acting magnetic force to act upon the rotor shaft to reduce radial vibration thereof. Vertical motors and methods of operating the vertical motors are disclosed, as are other aspects.

    Abstract translation: 公开了一种适于支撑和减小垂直电动机的转子轴的径向振动的轴承支撑组件。 轴承支撑组件具有适于联接到转子轴并且沿着轴向轴承承受轴向推力载荷的推力轴承,以及具有一个或多个磁场产生构件的径向磁阻尼装置,其适于提供径向作用的磁力 作用在转子轴上以减小其径向振动。 公开垂直电动机和操作垂直电动机的方法,以及其它方面。

    Rotor assembly for an electrodynamic machine that minimizes mechanical stresses in cooling ducts

    公开(公告)号:US11146145B2

    公开(公告)日:2021-10-12

    申请号:US16553702

    申请日:2019-08-28

    Abstract: A rotor assembly for an electrodynamic machine is provided. The rotor assembly comprises a lamination section and an end connector. The lamination section comprises rotor lamination sheets formed to define an annular array of axial cooling ducts mechanically supported by a plurality of radial and arched structural members that define an array of arched or angled supports to readily pass a magnetic flux via an optimal flux path. The lamination section further comprises rotor slots, with rotor conductor bars being disposed in the rotor slots. The end connector is supported by the rotor conductor bars. An axial space is formed in the lamination section by the annular array of axial cooling ducts for guiding a cooling fluid flow in an axial direction through the rotor assembly.

    Magnetic bearing apparatus and method for varying shaft thrust load support in induction motors and other rotating machinery
    6.
    发明授权
    Magnetic bearing apparatus and method for varying shaft thrust load support in induction motors and other rotating machinery 有权
    磁力轴承装置和方法,用于在感应电动机和其他旋转机械中改变轴推力负载

    公开(公告)号:US09225222B2

    公开(公告)日:2015-12-29

    申请号:US13654577

    申请日:2012-10-18

    Abstract: A permanent magnet bearing supports part of thrust loads of a vertical shaft induction motor, or the thrust loads of other types of rotation machinery regardless of shaft rotational axis orientation, in parallel with a lubricated mechanical bearing. The permanent magnet has a stationary magnet portion coupled to a bearing bracket and a rotating portion adapted for coupling to a rotor shaft. The permanent magnet bearing exerts a directional magnetic force that generates a preload support force on the rotor shaft that is selectively varied by varying air gap between the stationary and rotating magnet portions. Air gap between the magnet portions is varied with an air gap adjustment mechanism. The gap adjustment mechanism may be coupled to a control system that in some embodiments causes the permanent magnet bearing to vary the air gap based on external load applied on the motor.

    Abstract translation: 永磁轴承支持垂直轴感应电动机的推力负载的一部分,或其他类型的旋转机械的推力负载,而不管轴旋转轴定向,与润滑的机械轴承平行。 永磁体具有联接到轴承托架的固定磁体部分和适于联接到转子轴的旋转部分。 永久磁铁轴承施加方向磁力,该方向磁力在转子轴上产生预载支撑力,该预紧力支撑力通过改变静止磁铁部分和旋转磁铁部分之间的气隙而选择性地变化。 磁体部分之间的气隙随气隙调节机构而变化。 间隙调节机构可以耦合到控制系统,在一些实施例中,该控制系统使永磁体轴承基于施加在电动机上的外部负载来改变气隙。

    Heat exchanger for electric machines with double end to center cooling

    公开(公告)号:US10763727B2

    公开(公告)日:2020-09-01

    申请号:US15690857

    申请日:2017-08-30

    Abstract: An electric machine includes an enclosure housing multiple electrical components including a rotor assembly and a stator assembly, a heat exchanger coupled to the enclosure for cooling of the electrical components by creating an internal fluid flow circuit between the heat exchanger and the electrical components, wherein the heat exchanger comprises multiple cooling fluid inlets and a common cooling fluid outlet, wherein the multiple cooling fluid inlets are arranged so that cooling fluid enters the heat exchanger at different sections, and wherein the cooling fluid exits the heat exchanger through the common cooling fluid outlet.

    Rotor assembly and electrodynamic machine with axial vents for heat transfer

    公开(公告)号:US10476332B2

    公开(公告)日:2019-11-12

    申请号:US15386561

    申请日:2016-12-21

    Inventor: Nicholas G. Lang

    Abstract: A rotor assembly for an electrodynamic machine includes a lamination section with rotor laminations formed to define annular arrays of axial vents and rotor slots, with rotor conductor bars being disposed in the rotor slots, an end connector supported by the rotor conductor bars, wherein an axial space is formed between the end connector and the lamination section, and an annular guiding element arranged in the axial space between the end connector and the lamination section for guiding a cooling fluid flow in an axial direction.

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