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    ROTATION-SPEED-INDEPENDENT STABILIZER FOR PASSIVE MAGNETIC BEARING SYSTEMS
    3.
    发明申请
    ROTATION-SPEED-INDEPENDENT STABILIZER FOR PASSIVE MAGNETIC BEARING SYSTEMS 审中-公开
    旋转速度独立稳定器，用于无源磁力轴承系统

    公开(公告)号：US20160102704A1

    公开(公告)日：2016-04-14

    申请号：US14512280

    申请日：2014-10-10

    申请人： Lawrence Livermore National Security, LLC

    发明人： Richard F Post

    IPC分类号： F16C32/04

    CPC分类号： F16C32/0404 ,  F16C32/0408

    摘要： By employing a combination of magnetic forces and those from electrostatic fields, a new stabilizer is able, unlike those employing dynamic effects, to function at any speed with no need for sensors or dynamically generated electrical currents. Embodiments are provided that stabilize the radial, axial and tilt instability. In addition to its use for stabilization, the radial stabilizer described herein also functions as an eccentricity detector.

    摘要翻译： 通过采用磁力和来自静电场的磁力的组合，新的稳定器能够与采用动态效应的稳定器以任何速度运行，而不需要传感器或动态产生的电流。 提供了稳定径向，轴向和倾斜不稳定性的实施例。 除了其用于稳定之外，本文所述的径向稳定器还用作偏心检测器。

    ELECTROSTATIC STABILIZER FOR A PASSIVE MAGNETIC BEARING SYSTEM
    4.
    发明申请
    ELECTROSTATIC STABILIZER FOR A PASSIVE MAGNETIC BEARING SYSTEM 有权
    用于无源磁力轴承系统的静电稳定器

    公开(公告)号：US20160084315A1

    公开(公告)日：2016-03-24

    申请号：US14928729

    申请日：2015-10-30

    申请人： Lawrence Livermore National Security, LLC

    发明人： Richard F. Post

    IPC分类号： F16C39/00 ,  H02K7/09 ,  F16C32/04

    CPC分类号： F16C39/00 ,  F16C32/0404 ,  F16C32/0408 ,  F16C32/0425 ,  F16C2361/55 ,  H02K7/09

    摘要： Electrostatic stabilizers are provided for passive bearing systems composed of annular magnets having a net positive stiffness against radial displacements and that have a negative stiffness for vertical displacements, resulting in a vertical instability. Further embodiments are shown of a radial electrostatic stabilizer geometry (using circuitry similar to that employed in the vertical stabilizer). This version is suitable for stabilizing radial (lateral) displacements of a rotor that is levitated by annular permanent magnets that are stable against vertical displacements but are unstable against radial displacements.

    摘要翻译： 提供静电稳定器用于由环形磁体构成的被动轴承系统，该环形磁体具有抵抗径向位移的净正刚度，并且对于垂直位移具有负刚度，导致垂直不稳定性。 示出了径向静电稳定器几何形状的其他实施例（使用与垂直稳定器中采用的电路类似的电路）。 该版本适用于稳定由垂直位移稳定但对径向位移不稳定的环形永磁体悬浮的转子的径向（横向）位移。

    Electrostatic stabilizer for a passive magnetic bearing system
    9.
    发明授权
    Electrostatic stabilizer for a passive magnetic bearing system 有权
    一种无源磁轴承系统的静电稳定器

    公开(公告)号：US09197110B2

    公开(公告)日：2015-11-24

    申请号：US13827245

    申请日：2013-03-14

    申请人： Lawrence Livermore National Security, LLC

    发明人： Richard F Post

    IPC分类号： H02K7/09 ,  F16C32/04

    CPC分类号： F16C39/00 ,  F16C32/0404 ,  F16C32/0408 ,  F16C32/0425 ,  F16C2361/55 ,  H02K7/09

    摘要： Electrostatic stabilizers are provided for passive bearing systems composed of annular magnets having a net positive stiffness against radial displacements and that have a negative stiffness for vertical displacements, resulting in a vertical instability. Further embodiments are shown of a radial electrostatic stabilizer geometry (using circuitry similar to that employed in the vertical stabilizer). This version is suitable for stabilizing radial (lateral) displacements of a rotor that is levitated by annular permanent magnets that are stable against vertical displacements but are unstable against radial displacements.

    摘要翻译： 提供静电稳定器用于由环形磁体构成的被动轴承系统，该环形磁体具有抵抗径向位移的净正刚度，并且对于垂直位移具有负刚度，导致垂直不稳定性。 示出了径向静电稳定器几何形状的其他实施例（使用与垂直稳定器中采用的电路类似的电路）。 该版本适用于稳定由垂直位移稳定但对径向位移不稳定的环形永磁体悬浮的转子的径向（侧向）位移。

    Radial turbomolecular pump with electrostatically levitated rotor
    10.
    发明授权
    Radial turbomolecular pump with electrostatically levitated rotor 有权
    具有静电悬浮转子的径向涡轮分子泵

    公开(公告)号：US08221098B2

    公开(公告)日：2012-07-17

    申请号：US12425197

    申请日：2009-04-16

    申请人： Wei Yang ,  Alex Gu

    发明人： Wei Yang ,  Alex Gu

    IPC分类号： F04B37/14 ,  F04D19/04

    CPC分类号： F16C32/0404 ,  F04D17/127 ,  F04D17/168 ,  F04D19/042

    摘要： A radial turbomolecular pump comprising an electrostatically levitated rotor with a high compression ratio and pump speed at a chip-scale level. The levitated rotor can be sandwiched between a stator plate and a driver and multiple concentric rings of microblades can be fabricated on the rotor plate and the stator plate. The center portions of the driver and the base plate include concentric ring electrodes for rotor levitation by electrostatic forces. The space between two concentric rings of microblades forms a groove that is wide enough to receive the microblades from the opposing disk. The stator disk can be fixed and the rotor disk spins such that the rotor microblades move tangentially relative to the stator microblades. The microblades can be tilted at an angle from the tangent, facilitating momentum transfer to gas molecules in the radial direction.

    摘要翻译： 一种径向涡轮分子泵，包括在芯片级别具有高压缩比和泵速度的静电悬浮转子。 悬浮转子可以夹在定子板和驱动器之间，并且可以在转子板和定子板上制造多个微刀片同心环。 驱动器和基板的中心部分包​​括用于静电力转子悬浮的同心环形电极。 微型刀片的两个同心环之间的空间形成了足够宽的槽，以从相对的盘接收微刀片。 定子盘可以是固定的，并且转子盘旋转，使得转子微刀片相对于定子微刀片切向移动。 微刀片可以与切线成一定角度倾斜，从而促进沿径向向气体分子的动量传递。