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    • 3. 发明授权
    • Door actuation system having a variable damping device
    • 门致动系统具有可变阻尼装置
    • US5803404A
    • 1998-09-08
    • US590121
    • 1996-01-23
    • Anton A. PetrouCraig H. ScottStephen B. WarnerJerry D. Hielkema
    • Anton A. PetrouCraig H. ScottStephen B. WarnerJerry D. Hielkema
    • B64C1/14B64C1/24
    • B64C1/1407B64C1/24
    • The damper is comprised of a set of core rotor magnets arranged in an opposing north/south configuration. A conducting material cylindrically encircles the rotor magnets. A set of stator magnets laterally encircle the conducting material and are arranged in the same manner as the rotor magnets. A system of gears are coupled to the damper shaft and control the rotation of the rotor magnets such that they can be positioned relative to the stator magnets to set up the desired damping torque. As the rotor and stator magnets of opposite polarity approach each other, the eddy-current in the rotating conducting material increases causing the conducting material to generate a field in response to the eddy-current. The damping torque is caused by the magnetic force generated when the induced field in the material and the stator/rotor field attempt to line up.
    • 阻尼器包括以相对的北/南配置布置的一组芯转子磁体。 导电材料圆柱形地环绕转子磁体。 一组定子磁体横向环绕导电材料并且以与转子磁体相同的方式布置。 齿轮系统耦合到阻尼器轴并且控制转子磁体的旋转,使得它们可以相对于定子磁体定位以建立所需的阻尼扭矩。 当相反极性的转子和定子磁体相互接近时,旋转导电材料中的涡流增加,导致导电材料响应于涡流而产生场。 阻尼转矩由材料和定子/转子磁场中的感应场试图排列时产生的磁力引起。