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    FLUID DYNAMIC BEARING DEVICE AND MOTOR WITH SAME
    2.
    发明申请
    FLUID DYNAMIC BEARING DEVICE AND MOTOR WITH SAME 有权
    流体动力轴承装置和电动机

    公开(公告)号：US20150233417A1

    公开(公告)日：2015-08-20

    申请号：US14425972

    申请日：2013-08-19

    申请人： Shinji Komatsubara ,  Tetsuya Kurimura ,  Yasuhiro Yamamoto

    发明人： Shinji Komatsubara ,  Tetsuya Kurimura ,  Yasuhiro Yamamoto

    IPC分类号： F16C17/10 ,  F16C33/10

    CPC分类号： F16C17/107 ,  F16C33/103 ,  F16C33/104 ,  F16C43/02 ,  F16C2240/40 ,  F16C2240/46 ,  F16C2370/12

    摘要： A fluid dynamic bearing device including: a bearing sleeve fixed to an inner periphery of a housing; a shaft member removably inserted along an inner periphery of the bearing sleeve; an annular member having an inner peripheral surface for defining a radial gap together with an outer peripheral surface of the shaft member; and radial bearing portions and a thrust bearing portion for supporting the shaft member. At least the radial bearing gap at each of the radial bearing portions, and a bottom gap having the thrust bearing portion received therein are filled with lubricating oil. A void section is formed in an interior space of the housing. Assuming that d1 represents a gap width of the radial bearing gap and d2 represents a gap width of the radial gap, a relationship of 30d1≦d2≦250d1 is satisfied.

    摘要翻译： 一种流体动力轴承装置，包括：固定到壳体的内周的轴承套筒; 轴构件，其沿着所述轴承套筒的内周可移除地插入; 环形构件，其具有用于与所述轴构件的外周表面一起限定径向间隙的内周表面; 以及用于支撑轴构件的径向轴承部分和止推轴承部分。 至少每个径向轴承部分处的径向轴承间隙和其中容纳有止推轴承部分的底部间隙填充有润滑油。 在壳体的内部空间中形成空隙部。 假设d1表示径向轴承间隙的间隙宽度，d2表示径向间隙的间隙宽度，则满足30d1＆nlE; d2＆nlE; 250d1的关系。

    Fluid dynamic bearing device and motor with same
    3.
    发明授权
    Fluid dynamic bearing device and motor with same 有权
    流体动力轴承装置和电动机相同

    公开(公告)号：US09476449B2

    公开(公告)日：2016-10-25

    申请号：US14425972

    申请日：2013-08-19

    申请人： Shinji Komatsubara ,  Tetsuya Kurimura ,  Yasuhiro Yamamoto

    发明人： Shinji Komatsubara ,  Tetsuya Kurimura ,  Yasuhiro Yamamoto

    IPC分类号： F16C32/06 ,  F16C17/10 ,  F16C33/10

    CPC分类号： F16C17/107 ,  F16C33/103 ,  F16C33/104 ,  F16C43/02 ,  F16C2240/40 ,  F16C2240/46 ,  F16C2370/12

    摘要： A fluid dynamic bearing device including: a bearing sleeve fixed to an inner periphery of a housing; a shaft member removably inserted along an inner periphery of the bearing sleeve; an annular member having an inner peripheral surface for defining a radial gap together with an outer peripheral surface of the shaft member; and radial bearing portions and a thrust bearing portion for supporting the shaft member. At least the radial bearing gap at each of the radial bearing portions, and a bottom gap having the thrust bearing portion received therein are filled with lubricating oil. A void section is formed in an interior space of the housing. Assuming that d1 represents a gap width of the radial bearing gap and d2 represents a gap width of the radial gap, a relationship of 30d1≦d2≦250d1 is satisfied.

    摘要翻译： 一种流体动力轴承装置，包括：固定到壳体的内周的轴承套筒; 轴构件，其沿着所述轴承套筒的内周可移除地插入; 环形构件，其具有用于与所述轴构件的外周表面一起限定径向间隙的内周表面; 以及用于支撑轴构件的径向轴承部分和止推轴承部分。 至少每个径向轴承部分处的径向轴承间隙和其中容纳有止推轴承部分的底部间隙填充有润滑油。 在壳体的内部空间中形成空隙部。 假设d1表示径向轴承间隙的间隙宽度，d2表示径向间隙的间隙宽度，则满足30d1≤d2≤250d1的关系。

    Fluid lubricated bearing device
    7.
    发明授权
    Fluid lubricated bearing device 有权
    流体润滑轴承装置

    公开(公告)号：US07604410B2

    公开(公告)日：2009-10-20

    申请号：US11854366

    申请日：2007-09-12

    申请人： Tetsuya Kurimura ,  Yasuhiro Yamamoto ,  Tatsuo Kawase

    发明人： Tetsuya Kurimura ,  Yasuhiro Yamamoto ,  Tatsuo Kawase

    IPC分类号： F16C32/06

    CPC分类号： F16C17/107 ,  F16C17/026 ,  F16C17/028 ,  F16C33/103 ,  F16C33/1075 ,  F16C33/745 ,  F16C2370/12 ,  G11B19/2009 ,  G11B19/2036

    摘要： An inner space of a housing sealed with a seal member as well as internal pores of a bearing member (pores in a porous structure) are filled with a lubricating oil without the presence of air, so that the oil surface of the lubricating oil is within a seal space. Under a reduced pressure of 100 Torr, no lubricating oil leaks outside of the housing even at any attitude of the fluid lubricated bearing device such as normal, inverted, or horizontal attitude.

    摘要翻译： 用密封构件密封的壳体的内部空间以及轴承构件的内部孔（多孔结构中的孔）在没有空气的情况下填充润滑油，使得润滑油的油表面在 密封空间。 在100乇的减压下，即使在流体润滑的轴承装置的任何姿态下，例如正常的，倒置的或水平的姿态，也不会在壳体外面泄漏润滑油。

    FLUID DYNAMIC BEARING DEVICE
    8.
    发明申请
    FLUID DYNAMIC BEARING DEVICE 审中-公开
    流体动力轴承装置

    公开(公告)号：US20140126846A1

    公开(公告)日：2014-05-08

    申请号：US14112005

    申请日：2012-03-22

    申请人： Tetsuya Kurimura ,  Kazuyuki Shiozawa ,  Yasuhiro Yamamoto

    发明人： Tetsuya Kurimura ,  Kazuyuki Shiozawa ,  Yasuhiro Yamamoto

    IPC分类号： F16C32/06 ,  F16C33/72

    CPC分类号： F16C32/0633 ,  F16C17/107 ,  F16C33/72 ,  F16C33/745 ,  F16C2202/60

    摘要： A shaft side sealing surface (2a2) provided to an outer peripheral surface of a shaft member (2a) and a bearing side sealing surface (9a) provided to an inner peripheral surface of a bearing member (11) (sealing portion (9)) each has a tapered surface that radially shrinks toward an open-to-air side. In addition, the bearing side sealing surface (9a) has a minimum diameter (r4) set to be larger than a maximum diameter (r5) of the shaft side sealing surface (2a2).

    摘要翻译： 设置在轴构件（2a）的外周面的轴侧密封面（2a2）和设置在轴承部件（11）的内周面（密封部（9））的轴承侧密封面9a， 每个都具有朝向空气侧朝向收缩的锥形表面。 此外，轴承侧密封面9a具有设定为大于轴侧密封面2a2的最大直径（r5）的最小直径（r4）。