AUGMENTED PERMANENT MAGNET SYSTEM

    公开(公告)号:US20210178906A1

    公开(公告)日:2021-06-17

    申请号:US17168861

    申请日:2021-02-05

    摘要: A magnetic bearing system for controlling magnetic coupling between a mobile carriage and a guideway. The magnetic bearing system includes at least two engines successively arranged in a travel direction, wherein each of the at least two engines comprises at least two poles. The at least two engines have centerlines in the travel direction that are fixedly offset from each other, and the at least two engines are configured to be magnetically coupled to the guideway through air gaps.

    Magnetic support for journal bearing operation at low and zero speeds

    公开(公告)号:US10573484B2

    公开(公告)日:2020-02-25

    申请号:US15689326

    申请日:2017-08-29

    摘要: A structure and method of operation of a journal bearing is disclosed that minimizes contact of the shaft with the sleeve during start up and slow down of rotation of the shaft relative to the sleeve, or vice versa. The bearing assembly includes a gravitational load reduction mechanism with magnets disposed on the sleeve and on the shaft in alignment with one another. The magnet(s) on the shaft interacts with the magnet(s) disposed on the sleeve to provide a force against the pressure of the shaft towards the sleeve generated by gravity on the rotating component. The magnets enable centering of the rotating component within the stationary component during low rotation and non-rotation. This prevents rubbing of the rotating journal bearing component surfaces, e.g., sleeve, against the stationary journal bearing component, e.g., shaft, during assembly, ramp-up, and coast-down when the journal bearing fluid provides minimal or no bearing centering capability.

    Flywheel arrangement
    6.
    发明授权

    公开(公告)号:US10260595B2

    公开(公告)日:2019-04-16

    申请号:US15313679

    申请日:2015-05-22

    发明人: Gary Murphy

    摘要: A flywheel (6) is provided that comprises a rotatable shaft (7). At least one end of the rotatable shaft (7) is provided with a recess (51) and two magnets (15, 20, 31, 36). The flywheel (6) is provided with support means (18, 23, 34, 39) with the support means comprising: a first arrangement (18, 34) of magnets (17, 33) for vertical stabilization of the shaft (7); and a second arrangement (23, 39) of magnets (22, 38) for horizontal stabilization of the shaft (7). The first of the two magnets (15, 31) of the shaft (7) interacts with the first arrangement (18, 34) and the second of the two magnets (20, 36) interacts with the second arrangement (23, 39).

    SPINDLE DEVICE
    7.
    发明申请
    SPINDLE DEVICE 审中-公开

    公开(公告)号:US20180345304A1

    公开(公告)日:2018-12-06

    申请号:US15778328

    申请日:2016-11-25

    申请人: NSK LTD.

    摘要: A spindle device (10) includes a rotating shaft (12) having a plurality of turbine blades (11) provided in a circumferential direction, a housing configured to accommodate therein the rotating shaft (12), and a gas bearing (40) mounted to the housing (20) and configured to float and support the rotating shaft (12) to the housing (20) in a contactless manner by supply of a gas. The rotating shaft (12) is configured to be rotatively driven by jetting gas to the plurality of turbine blades (11). The plurality of turbine blades (11) overlaps the gas bearing (40) in an axial direction. Therefore, there is provided the spindle device having a flat configuration in which an axial length is short and capable of implementing miniaturization and weight saving.

    Support of propeller unit for a vessel
    9.
    发明授权
    Support of propeller unit for a vessel 有权
    支持船舶的螺旋桨单元

    公开(公告)号:US09592897B2

    公开(公告)日:2017-03-14

    申请号:US13321174

    申请日:2010-05-12

    申请人: Gunnar Johnsen

    发明人: Gunnar Johnsen

    摘要: The present invention relates to a rim driven propeller unit for a vessel, where a number of permanent magnets (4) are arranged round the propeller unit's rotatable rotor housing (1), comprising a number of propeller blades (3), and a number of permanent magnets round the propeller unit's external, stationary casing (2) housing the rotatable rotor housing, where the permanent magnets round parts of the rotatable rotor housing and the external, stationary casing's circumference are provided located above one another with like polarity, while other parts of the rotatable rotor housing and the external, stationary casing are provided located facing one another with opposite polarity, whereby the rotor housing and the stationary casing are repelled by and attracted to one another respectively, thereby being prevented from coming into contact with one another.

    摘要翻译: 本发明涉及一种用于容器的边缘驱动螺旋桨单元,其中多个永磁体(4)布置在螺旋桨单元的可旋转转子壳体(1)的周围,包括多个螺旋桨叶(3),并且多个 螺旋桨单元的外部静止壳体(2)上的永磁体容纳可旋转的转子壳体,其中可旋转转子壳体的圆周部分和外部静止壳体的圆周上的永久磁体设置成彼此具有相似极性,而其它部分 可旋转的转子壳体和外部固定的壳体被设置为相对极性地彼此面对,由此转子壳体和固定壳体分别被排斥并相互吸引,从而防止彼此接触。

    RADIAL PERMANENT MAGNETIC SUSPENSION BEARING HAVING MICRO-FRICTION OR NO FRICTION OF PIVOT POINT
    10.
    发明申请
    RADIAL PERMANENT MAGNETIC SUSPENSION BEARING HAVING MICRO-FRICTION OR NO FRICTION OF PIVOT POINT 审中-公开
    径向永久磁悬浮轴承具有微摩擦或无摩擦点

    公开(公告)号:US20170023057A1

    公开(公告)日:2017-01-26

    申请号:US15108958

    申请日:2014-12-30

    IPC分类号: F16C32/04 F16C39/06

    摘要: A radial permanent magnetic suspension bearing, comprising: a horizontal shaft (2), a support bearing (4), and a radial permanent magnet suspension bearing (3); the permanent magnetic suspension bearing (3) comprises a stator pull-push magnet (31) disposed on a stator casing (1) via a permeability magnetic substrate (322), and a rotor pull-push magnet (32) disposed on the horizontal shaft (2) correspondingly via an annular permeability magnetic substrate (322), having a radial gap and forming an axial pull-push magnetic circuit with the stator pull-push magnet (31); wherein the rotor pull-push magnet (32) consists of two or more annual permanent magnets axially and closely fitting, with magnetic poles alternately arranged in the axial direction; the stator pull-push magnet (31) consists of two or more annular permanent magnets axially and closely fitting, with magnetic poles alternately arranged in the axial direction, disposed over the horizontal panel where the axle center of the horizontal shaft (2) is located, and being symmetrical about the perpendicular bisection plane of the horizontal shaft. The bearing has a simple structure and greatly reduces energy consumption, without wear or bearing maintenance.

    摘要翻译: 一种径向永磁悬浮轴承,包括:水平轴(2),支撑轴承(4)和径向永磁悬浮轴承(3); 永久磁悬浮轴承(3)包括通过磁导磁性基板(322)设置在定子壳体(1)上的定子拉推磁体(31)和设置在水平轴上的转子拉推磁体 (2)相应地经由环形导磁磁性基板(322),具有径向间隙并与定子拉推磁体(31)形成轴向拉推磁路; 其中所述转子拉推磁体由两个或更多个轴向和紧密配合的年度永磁体组成,磁极在轴向交替布置; 定子拉推磁体由两个或更多个轴向和紧密配合的环形永磁体组成,其中磁极在轴向上交替布置,设置在水平轴(2)的轴心所在的水平面板上 并且关于水平轴的垂直二等分平面对称。 轴承结构简单,能耗大大降低,无磨损或轴承维护。