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    • 52. 发明授权
    • Magnetic suspension assembly for a rotor
    • 用于转子的磁悬浮组件
    • US4398773A
    • 1983-08-16
    • US148236
    • 1980-05-09
    • Karl BodenJohan K. Fremerey
    • Karl BodenJohan K. Fremerey
    • F16C32/04F01D25/16F16C39/06G01F1/10F16C39/00
    • F16C32/0444F01D25/16F16C32/0425F16C32/0478F05D2240/515
    • A magnetic suspension system, especially for a rotor, comprises a stator having two axially spaced permanent magnets which are poled the same as a pair of spaced-apart permanent magnets on the rotor so that a repulsion field suspends the rotor within the stator. A magnetic coil surrounds the rotor and is disposed between the pole pieces of the stator substantially bridging the gap between them and the permanent magnets of the stator and the rotor repel each other in the axial direction. A contactless field sensor responds to the axial position of the rotor and controls the energization of the magnetic coil to stabilize the axial position of the rotor by augmenting or decreasing the net axial forces generated by the magnetic fields in the axial direction.
    • 特别是用于转子的磁悬浮系统包括具有两个轴向隔开的永磁体的定子,该永磁体与转子上的一对间隔开的永磁体相同,使得排斥场将转子悬挂在定子内。 电磁线圈围绕转子并且设置在定子的极片之间,基本上桥接它们之间的间隙和定子的永磁体和转子在轴向上彼此排斥。 非接触式场传感器响应于转子的轴向位置,并且通过增加或减小由轴向方向产生的磁场的净轴向力来控制电磁线圈的通电以稳定转子的轴向位置。
    • 53. 发明申请
    • HYBRID MAGNETIC SUSPENSION OF A ROTOR
    • 转子的混合磁悬浮
    • US20140199179A1
    • 2014-07-17
    • US14140676
    • 2013-12-26
    • Aktiebolaget SKF
    • Joaquim Da SilvaYves DupuisOlivier LemarchandLateb RamdaneErwan SalahunUlrich Schroeder
    • H02K7/09F04D25/06
    • F04D29/058F04D25/16F16C32/0425F16C32/0478F16C32/0495F16C2360/24F16C2360/42F16C2360/44H02K7/09
    • A hybrid magnetic suspension of a rotor (1) having compressor wheels (2, 3) having permanent magnets (104, 114) integral to shrunk fit rings (8, 18) arranged on the rotor (1) in the vicinity of the compressor wheels (2, 3), permanent magnets (124, 134) integral to stationary rings (23, 33) coaxially arranged with the rotor (1) and associated with a resilient material (5, 15) to define a passive radial magnetic bearing, coils (6, 16) associated with magnetic armatures (10, 20) and facing rotor parts (7, 17) being located perpendicularly to the rotor (1), and axial sensors (60, 160) configured for sensing the axial position of the rotor (1) and control means (200) configured for feeding the coils (6, 16) as a function of the outputs of the axial sensors (60, 160) for generating both axial bearing forces and a motor torque and thereby being adapted for defining an axial bearingless motor.
    • 具有压缩机叶轮(2,3)的转子(1)的混合磁悬浮液,其具有与设置在转子(1)上的压缩机叶轮附近的收缩配合环(8,18)成一体的永磁体(104,114) (2,3),与固定环(23,33)成一体的永磁体(124,134),其与所述转子(1)同轴布置并且与弹性材料(5,15)相关联以限定无源径向磁轴承,线圈 (6,16),其与磁性衔铁(10,20)相关联并且面向与转子(1)垂直的转子部分(7,17);以及轴向传感器(60,160),其被配置用于感测转子的轴向位置 (1)和控制装置(200),其被配置为根据轴向传感器(60,160)的输出来馈送线圈(6,16),用于产生轴向轴承力和电机扭矩,从而适于定义 轴向无轴承电机。
    • 54. 发明授权
    • Apparatus for magnetic bearing of rotor shaft with radial guidance and axial control
    • 具有径向引导和轴向控制的转子轴磁轴承装置
    • US08058758B2
    • 2011-11-15
    • US11988037
    • 2006-06-22
    • Günter Ries
    • Günter Ries
    • H02K7/09F16C39/06F16C32/04
    • F16C32/0478F16C32/041F16C32/0414F16C2300/02
    • Radial, soft magnetic rotor disk elements which engage in each other and soft magnetic stator disk elements form a magnetic bearing device. The elements are provided with teeth-like extensions which are arranged opposite to each other over an air gap on sides which are oriented towards each other. Magnetic fields, which may be produced by permanent magnets or electromagnets, are assigned to the stator disk elements to produce a magnetic maintaining flow which is oriented in an axial direction between the disk elements for radial adjustment. An electromagnetic winding is also provided in the region of the central plane of the bearing device for axial adjustment, which enables a magnetic control flow, which superimposes the magnetic maintaining flow, to be produced.
    • 彼此接合的径向,软磁性转子盘元件和软磁性定子盘元件形成磁性轴承装置。 这些元件设置有齿形延伸部,它们彼此相对设置在彼此朝向彼此的侧面上的气隙上。 可以由永磁体或电磁体产生的磁场被分配给定子盘元件,以产生在用于径向调节的盘元件之间沿轴向定向的磁保持流。 在用于轴向调节的轴承装置的中心平面的区域中还设置有电磁绕组,这使得能够产生叠加磁保持流的磁控制流。
    • 58. 发明申请
    • Vacuum pump
    • 真空泵
    • US20030180162A1
    • 2003-09-25
    • US10363473
    • 2003-02-28
    • Christian BeyerHeinrich EnglanderJosef Hodapp
    • F04B017/00
    • F04D29/058F04D19/048F16C32/047F16C32/0478F16C2360/45
    • The vacuum pump (10) comprises a stator (14) in which a rotor (12) with radial magnetic bearings (16,19) and with an axial magnetic bearing (40) is mounted in a contactless manner. The axial magnetic bearing (40) produces an axial magnetic field by means of a magnet coil (40) with a yoke iron (44) on the stator (14). An axially magnetized permanent magnet (50) is provided on the rotor (12), located approximately axially opposite the yoke iron (44). A permanently axially magnetized compensating magnet (54) is provided on the stator (14) and arranged axially opposite the permanent magnet of the rotor (50) and polarized in the opposite direction, whereby the permanent magnet (50) of the rotor and the compensating magnet (54) repel each other. In a centre position, the rotor is bias-free by compensating the forces of attraction between the permanent magnet of the rotor and the yoke iron. As a result, the centre position of the rotor can be adjusted with relatively small magnet coil flows. This results in small magnet coils, produces less heat and reduces the required power of the axial bearing.
    • 真空泵(10)包括定子(14),其中具有径向磁轴承(16,19)的转子(12)和轴向磁性轴承(40)以无接触的方式安装在该定子中。 轴向磁性轴承(40)通过在定子(14)上具有轭铁(44)的磁体线圈(40)产生轴向磁场。 轴向磁化永磁体(50)设置在转子(12)上,位于大致轴向相对于轭铁(44)的位置。 永久轴向磁化补偿磁体(54)设置在定子(14)上并且与转子(50)的永磁体轴向布置并且沿相反方向极化,由此转子的永磁体(50)和补偿 磁铁(54)彼此排斥。 在中心位置,通过补偿转子的永磁体和轭铁之间的吸引力,转子是无偏置的。 结果,转子的中心位置可以用较小的磁体线圈流量来调节。 这导致小的磁体线圈,产生较少的热量并减少轴向轴承的所需功率。
    • 59. 发明授权
    • Pump having magnetic bearing for pumping blood and the like
    • 具有用于抽血的磁轴承的泵等
    • US06201329B1
    • 2001-03-13
    • US09046334
    • 1998-03-23
    • H. Ming Chen
    • H. Ming Chen
    • H02K709
    • F16C32/0444F16C32/047F16C32/0478F16C2316/18H02K7/09H02K7/14
    • In order to provide a blood pump bearing having a suitable stiffness, magnetic rings for a journal bearing are provided on each of the stationary portion and the rotor and disposed in magnetically interacting facing relationship on opposite sides of a gap, and a thrust bearing is provided on the stationary portion and the rotor and disposed with magnets in magnetically interacting facing relationship on opposite sides of the same or another gap. The pump motor preferably has a bearing span which is at least about 2½ times greater than an average radius of the distributed magnetic force. In accordance with one embodiment, the stator has at least one axial extension, an axially extending gap is provided between the stator and rotor, and a journal bearing has magnets interactively disposed on opposite sides of the gap. In accordance with another embodiment, at least one pair of permanent magnets on the housing are movable relative to at least one pair of permanent magnets on the rotor which are oriented in an attractive relationship thereto in response to axial displacement of the rotor.
    • 为了提供具有适当刚度的血泵轴承,在每个固定部分和转子上设置用于轴颈轴承的磁环,并且在间隙的相对侧上以磁力相互作用的关系设置,并且提供推力轴承 在固定部分和转子上并且在相同或另一个间隙的相对侧上设置有与磁性相互作用的磁体。 泵电动机优选地具有比分布磁力的平均半径大至少约2.5倍的轴承跨度。 根据一个实施例,定子具有至少一个轴向延伸部,在定子和转子之间提供轴向延伸的间隙,并且轴颈轴承具有交互地设置在间隙的相对侧上的磁体。 根据另一个实施例,壳体上的至少一对永久磁铁相对于转子上的至少一对永磁体是可移动的,其响应于转子的轴向位移而与其有吸引力的关系。