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    Folded fluid channel for a fluid dynamic bearing
    5.
    发明授权
    Folded fluid channel for a fluid dynamic bearing 有权

    公开(公告)号：US09644675B2

    公开(公告)日：2017-05-09

    申请号：US12117619

    申请日：2008-05-08

    申请人： Lynn B. Le ,  Alan L. Grantz

    发明人： Lynn B. Le ,  Alan L. Grantz

    IPC分类号： F16C32/06 ,  F16C33/10 ,  F16C41/00 ,  F16C17/10

    CPC分类号： F16C32/0633 ,  F16C17/105 ,  F16C17/107 ,  F16C33/107 ,  F16C33/1085 ,  F16C41/008 ,  F16C2370/12

    摘要： A system and method are provided for sealing a fluid dynamic bearing motor. A first and a second folded fluid channel are shaped for maximizing bearing axial span and establishing angular stiffness, to resist gyroscopic rocking of the facing bearing surfaces. The first folded fluid channel is limited to occupying at least a portion of the same axial space as the bearing. A first and a second fluid sealing system are connected to opposite axial ends of the bearing. The first fluid sealing system forms an active pumping seal to pump fluid during motor rotation. In an aspect, a top cover attached shaft, and a single thrust surface are employed, allowing for a rigid motor structure and power reduction in applications including high rotational speed disc drives. Also, by employing a rigid shaft design, significantly lower amplitude radial vibration responses are exhibited at higher frequencies than prior art motor designs.

    OPTICAL IMAGING PROBE
    7.
    发明申请
    OPTICAL IMAGING PROBE 有权
    光学成像探头

    公开(公告)号：US20150338580A1

    公开(公告)日：2015-11-26

    申请号：US14796504

    申请日：2015-07-10

    申请人： NAMIKI SEIMITSU HOUSEKI KABUSHIKI KAISHA

    发明人： Hiroshi YAMAZAKI ,  Eri FUKUSHIMA ,  Takafumi ASADA

    IPC分类号： G02B6/36 ,  F16C32/06

    CPC分类号： G02B6/3604 ,  A61B1/00172 ,  F16C17/028 ,  F16C32/0633 ,  F16C33/107 ,  G02B23/26

    摘要： Provided is optical imaging probe that is able to obtain stable observation image by optical path correction.It includes a rotation driving source (10) adapted to drive and rotate a rotor (11); a first single-mode optical fiber (33) inserted and fixed over the axial direction in the rotation center side of the rotor (11), the front end of which light is able to enter; a second single-mode optical fiber (34) supported at the rear end side of the first single-mode optical fiber (33) in a non-rotatable manner; and a gap (s) and optical path correcting means (35) interposed between the first single-mode optical fiber (33) and the second single-mode optical fiber (34), and the optical path correcting means (35) is adapted to expand and collimate the light transmitted from one single-mode optical fiber and pass it through the gap (s), and then guide it to the other single-mode optical fiber.

    摘要翻译： 提供能够通过光路校正获得稳定的观察图像的光学成像探头。 其包括适于驱动和旋转转子（11）的旋转驱动源（10）; 在转子（11）的旋转中心侧的轴向插入固定的第一单模光纤（33），其前端能够进入光; 在第一单模光纤（33）的后端侧以不可旋转的方式支撑的第二单模光纤（34） 以及插入在第一单模光纤（33）和第二单模光纤（34）之间的间隙和光路校正装置（35），并且光路校正装置（35）适于 扩展并准直从一个单模光纤传输的光并将其通过间隙，然后将其引导到另一个单模光纤。

    Fluid dynamic bearing system
    9.
    发明授权
    Fluid dynamic bearing system 有权
    流体动力轴承系统

    公开(公告)号：US09033580B2

    公开(公告)日：2015-05-19

    申请号：US14095532

    申请日：2013-12-03

    申请人： MINEBEA CO., LTD.

    发明人： Thomas Fuss ,  Martin Engesser ,  Atsushi Yanagawa ,  Werner Schmid ,  Carsten Etling

    IPC分类号： F16C32/06 ,  F16C33/10 ,  F16C33/74 ,  F16C17/10

    CPC分类号： F16C32/0633 ,  F16C17/107 ,  F16C33/1085 ,  F16C33/745 ,  F16C2370/12

    摘要： The fluid dynamic bearing system has at, least one stationary part, and at least one rotating part that is supported rotatable about a rotational axis with respect to the stationary part. A bearing gap filled with bearing fluid is formed between mutually opposing surfaces of the stationary and of the rotating part. The bearing system includes at least one fluid dynamic radial bearing and at least one fluid dynamic axial bearing that are disposed along sections of the bearing gap. In one aspect of the invention, an annular sealing gap for sealing open ends of the bearing gap has one end connected to the bearing gap and one end connected to an annular reservoir, the outside radius of the reservoir measured from the rotational axis being larger than the outside radius of the sealing gap.

    摘要翻译： 流体动力轴承系统具有至少一个固定部分，以及至少一个旋转部件，其可相对于静止部分围绕旋转轴线旋转。 填充有轴承流体的轴承间隙形成在固定件和旋转部件的相互相对的表面之间。 轴承系统包括沿轴承间隙的部分设置的至少一个流体动态径向轴承和至少一个流体动态轴向轴承。 在本发明的一个方面，用于密封轴承间隙的开口端的环形密封间隙具有连接到轴承间隙的一端，并且一端连接到环形容器，从旋转轴线测量的储存器的外半径大于 密封间隙的外半径。