APPARATUS AND METHOD FOR MAGNETICALLY UNLOADING A ROTOR BEARING

    公开(公告)号:WO2019108305A1

    公开(公告)日:2019-06-06

    申请号:PCT/US2018/054697

    申请日:2018-10-05

    Abstract: A flywheel apparatus that magnetically unloads a top rotor bearing is described. The apparatus includes a flywheel housing, a rotor with a vertical axis of rotation that includes a magnetic material, a magnet configured to apply a desired upward off-loading force along the vertical axis of rotation, an upper bearing connected to an upper shaft of the rotor, and a bearing housing disposed between the upper bearing and the flywheel housing that substantially prevents downward axial motion of the upper bearing. The magnet includes an electromagnet. A force sensor is used to measure a force on the upper bearing which is provided as input to a controller that updates the current to the electromagnet. The rotor is maintained in a fixed axial position and a spring disposed below a lower bearing absorbs axial dimension growth of the rotor.

    SAFE ASSEMBLY AND INSTALLATION OF A FLYWHEEL
    2.
    发明申请
    SAFE ASSEMBLY AND INSTALLATION OF A FLYWHEEL 审中-公开
    安全组装和安装FLYWHEEL

    公开(公告)号:WO2016210176A1

    公开(公告)日:2016-12-29

    申请号:PCT/US2016/039093

    申请日:2016-06-23

    CPC classification number: G05G1/00 H02K7/02 H02K7/025 H02K15/00 Y02E60/16

    Abstract: A flywheel device includes structures allowing the flywheel system to be assembled offsite, transported safely, and installed with relatively few steps. The flywheel includes a rotor and a housing enclosing the rotor, where the housing includes a bottom plate, a top plate and side walls. The bottom plate and the top plate each includes a hole aligned with the center axis of the rotor. The flywheel also includes multiple bearing housings substantially covering the holes of the bottom plate and the top plate that are aligned to the center axis of the rotor. The flywheel also includes posts that physically contact the primary rotational mass of the rotor to prevent motion of the rotor during transport of the flywheel system. Some or all of these posts may be repositioned or removed during installation so that the rotor can spin freely.

    Abstract translation: 飞轮装置包括使飞轮系统能够非现场组装,安全运输并以相对较少的台阶安装的结构。 飞轮包括转子和包围转子的壳体,其中壳体包括底板,顶板和侧壁。 底板和顶板各自包括与转子的中心轴对准的孔。 飞轮还包括多个轴承座,其基本上覆盖与转子的中心轴对准的底板和顶板的孔。 飞轮还包括物理地接触转子的主旋转质量的柱,以防止在飞轮系统运输期间转子的运动。 在安装过程中,可能会重新定位或移除这些柱中的一些或全部,以便转子能自由旋转。

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