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    RADIAL MAGNETIC BEARING AND METHOD OF MANUFACTURE
    81.
    发明申请
    RADIAL MAGNETIC BEARING AND METHOD OF MANUFACTURE 有权
    径向磁性轴承及其制造方法

    公开(公告)号：US20150137643A1

    公开(公告)日：2015-05-21

    申请号：US14517770

    申请日：2014-10-17

    Applicant: Stephane Hay ,  Nicolas Soulier

    Inventor： Stephane Hay ,  Nicolas Soulier

    IPC: F16C32/04 ,  B23P15/00 ,  F16C43/04

    CPC classification number: F16C32/0474 ,  B23P15/003 ,  F16C32/0461 ,  F16C32/0468 ,  F16C32/048 ,  F16C43/00 ,  F16C43/04 ,  F16C2202/42 ,  F16C2300/02 ,  Y10T29/49009

    Abstract: A radial magnetic bearing having an inner rotor including a central shaft having a ferromagnetic armature mounted on the shaft and an outer stator providing a plurality of electromagnets including poles made of ferromagnetic material which project radially inwardly towards the rotor is provided. As such, air-gaps (e) are left between end faces of the poles and the ferromagnetic armature, and coils wound around the poles. The poles are extended through outer portions attached to a supporting member. Each pole and the corresponding outer portion are included in an angularly segmented module providing a stack of laminations made of ferromagnetic material. The outer portion defines shoulders with respect to the corresponding pole, the outer portion contacting outer portions of neighboring segmented modules and the outer portions of all segmented modules being assembled by clamping rings, wherein the coils located in free spaces around the poles are mounted in a string.

    Abstract translation: 一种径向磁轴承，其具有内转子，该内转子包括具有安装在该轴上的铁磁衔铁的中心轴和设置多个电磁体的外定子，该多个电磁体包括由径向向内朝向转子突出的铁磁材料制成的极。 因此，气隙（e）留在磁极的端面和铁磁电枢之间，线圈缠绕在磁极上。 极通过附接到支撑构件的外部部分延伸。 每个极和对应的外部部分包括在角度分段的模块中，提供由铁磁材料制成的叠片。 外部部分相对于相应的极限定肩部，接触相邻分段模块的外部的外部部分和所有分段模块的外部部分由夹紧环组装，其中位于极周围的自由空间中的线圈安装在 串。

    AUXILIARY BEARING OF THE BALL BEARING TYPE FOR A MAGNETICALLY SUSPENDED ROTOR SYSTEM
    82.
    发明申请
    AUXILIARY BEARING OF THE BALL BEARING TYPE FOR A MAGNETICALLY SUSPENDED ROTOR SYSTEM 有权
    用于磁悬浮转子系统的球轴承类型的辅助轴承

    公开(公告)号：US20150028706A1

    公开(公告)日：2015-01-29

    申请号：US14444114

    申请日：2014-07-28

    Applicant: Jens Anders ,  Mohamed Bendaoud ,  Joaquim Da Silva ,  Matthieu Oliva ,  Frederic Ponson

    Inventor： Jens Anders ,  Mohamed Bendaoud ,  Joaquim Da Silva ,  Matthieu Oliva ,  Frederic Ponson

    IPC: F16C32/04 ,  F16C35/073

    CPC classification number: F16C32/0402 ,  F16C19/163 ,  F16C19/542 ,  F16C27/04 ,  F16C32/0442 ,  F16C32/048 ,  F16C35/073 ,  F16C39/02 ,  F16C2240/40 ,  F16C2240/46

    Abstract: An assembly includes a rotating shaft supported with respect to a stationary housing by at least one active magnetic bearing presenting a mean radial air gap and at least one auxiliary bearing having first and second coaxially arranged annular surfaces is provided. One of the first and second coaxially arranged annular surfaces defines a clearance (E2) with one of the stationary housing and the rotating shaft, the clearance (E2) being less than the mean radial air gap and the other of the first and second coaxially arranged annular surfaces being integral with the other one of the stationary housing and the rotating shaft. The auxiliary bearing provides a first ball bearing and a second ball bearing having a misalignment with respect to each other in order to increase the starting torque.

    Abstract translation: 组件包括通过至少一个具有平均径向气隙的主动磁轴承相对于固定壳体支撑的旋转轴，并且提供具有第一和第二同轴布置的环形表面的至少一个辅助轴承。 第一和第二同轴布置的环形表面中的一个与固定壳体和旋转轴中的一个形成间隙（E2），间隙（E2）小于平均径向气隙，并且第一和第二同轴布置 环形表面与固定壳体和旋转轴中的另一个成一体。 辅助轴承提供第一球轴承和第二球轴承，其具有相对于彼此的不对准，以便增加启动扭矩。

    Device for estimating the sensitivity of a sensor, associated method and system
    83.
    发明授权
    Device for estimating the sensitivity of a sensor, associated method and system 有权

    公开(公告)号：US12253390B2

    公开(公告)日：2025-03-18

    申请号：US17981318

    申请日：2022-11-04

    Applicant: SKF Magnetic Mechatronics

    Inventor： Yves Dupuis

    IPC: G01D5/20 ,  F16C32/04

    Abstract: A device for estimating the sensitivity of a position sensor for a magnetic bearing supporting a rotor, the sensor being capable of measuring the position of the rotor in relation to the magnetic bearing, the magnetic bearing including at least one shaft provided with at least two radially opposite coils. The device includes a control, a current-measuring component, a component for measuring the initial position of the rotor, a component for determining a variation in currents, a component for determining a movement of the rotor, and a component for determining the sensitivity of the sensor, configured to determine the sensitivity of the position sensor based on a movement setpoint and on the value of a movement of the rotor.

    DEVICE FOR CONTROLLING A MAGNETIC BEARING AND ASSOCIATED SYSTEM
    84.
    发明公开
    DEVICE FOR CONTROLLING A MAGNETIC BEARING AND ASSOCIATED SYSTEM 审中-公开

    公开(公告)号：US20240093729A1

    公开(公告)日：2024-03-21

    申请号：US18462094

    申请日：2023-09-06

    Applicant: SKF Magnetic Mechatronics

    Inventor： Andre DEANDRADE ,  Lakdar Sadi-Haddad

    IPC: F16C32/04 ,  F16C37/00

    CPC classification number: F16C32/0446 ,  F16C32/0459 ,  F16C37/005

    Abstract: A device (24) for controlling a magnetic bearing (22) includes an axis with two electromagnets (26, 28) diametrically opposed. The device (24) includes two power converters per axis of the magnetic bearing. Each power converter supplies one different electromagnet. The device includes eight power devices (40, 42, 44, 46, 48, 50, 52, 54) arranged in a first line (88) and a second line (90). Each of the first and second lines includes four power devices. A first set of four power devices (40, 42, 44, 46) are connected together to form a first power converter. A second set of four power devices (48, 50, 52, 54) are connected together to form a second power converter. Each of the first and second lines (88, 90) includes two power devices (40, 42, 44, 46) of the first set and two power devices (48, 50, 52, 54) of the second set.

    System for controlling at least one active magnetic bearing equipping a rotating machine comprising a rotor and a stator, and corresponding method
    88.
    发明授权
    System for controlling at least one active magnetic bearing equipping a rotating machine comprising a rotor and a stator, and corresponding method 有权

    公开(公告)号：US11530720B2

    公开(公告)日：2022-12-20

    申请号：US17171215

    申请日：2021-02-09

    Applicant: SKF Magnetic Mechatronics

    Inventor： Francis Bienaime

    IPC: F16C32/04 ,  H03H17/02 ,  H02P21/13 ,  H02P21/18

    Abstract: System for controlling at least one active magnetic bearing equipping a rotating machine comprising a rotor and a stator, at least one means for measuring the radial positions of the rotor as a function of the signal from at least one position sensor, and at least two control loops of the active magnetic bearing as a function of the radial positions of the rotor, each control loop of the magnetic bearing being provided with at least one synchronous filter as a function of the rotation speed, and an extended Kalman filter for determining the rotation speed of the rotor with respect to the stator receiving as input, from position sensors, measurements of radial position of the rotor and as a function of measurements of radial position of the rotor performed over a predetermined time at zero rotor rotation speed.

    Landing bearing assembly and rotary machine equipped with such an assembly
    89.
    发明授权
    Landing bearing assembly and rotary machine equipped with such an assembly 有权

    公开(公告)号：US10605310B2

    公开(公告)日：2020-03-31

    申请号：US15824181

    申请日：2017-11-28

    Applicant: SKF Magnetic Mechatronics

    Inventor： Luc Baudelocque

    IPC: H02K7/09 ,  F16C39/02 ,  F16C32/04 ,  F16C27/04 ,  H02K7/08

    Abstract: A landing bearing assembly for a rotary machine rotatable around a central axis and having a stator, a rotor with a shaft, a magnetic bearing, an auxiliary rolling bearing with two lateral faces, a landing sleeve facing, in normal operation of the rotary machine when the rotor is supported only by the magnetic bearing, the auxiliary rolling bearing at a nominal distance defined as the landing airgap El, the auxiliary rolling bearing coming into contact with the landing sleeve upon landing of the rotor in the event of a high shock. The assembly further provides a compliance ring with a nominal thickness Eo made from a material with a lower mechanical stiffness than the material constituting the other components of the landing bearing assembly to first absorb some energy of the shock by elastic deformation resulting in a reduction of its thickness.

    Stator assembly and magnetic bearing or electric motor having such a stator assembly
    90.
    发明授权
    Stator assembly and magnetic bearing or electric motor having such a stator assembly 有权

    公开(公告)号：US10135316B2

    公开(公告)日：2018-11-20

    申请号：US15074693

    申请日：2016-03-18

    Applicant: Eduardo Carrasco ,  Eddy Herisse

    Inventor： Eduardo Carrasco ,  Eddy Herisse

    IPC: H02K7/09 ,  H02K1/18 ,  H02K5/04 ,  H02K15/02 ,  H02K1/12

    Abstract: A stator assembly that provides a concentric housing and stator, the stator radially positioned inside the housing, the housing having an inner surface, the stator having an outer surface radially facing the inner surface. One of the outer surface of the stator and the inner surface of the housing has recessed shapes and the other one of the outer and inner surface has protruding shapes. When the two shapes are arranged in a first relative position, the protruding shapes are inserted in the recessed shapes so that the stator can be mounted radially inside the housing along a central axis of the assembly, and in a second relative position that is angularly shifted relative to the first position around the central axis, the protruding shapes exert, against the one of the housing and the stator that bears the recessed shapes, a radial force that angularly and axially locks the stator.

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