公开(公告)号：US5993066A

公开(公告)日：1999-11-30

申请号：US963651

申请日：1997-11-03

申请人： Hans Leuthold ,  Coda H. Pan ,  David John Jennings ,  Lakshman Nagarathnam ,  Raquib U. Khan ,  Wesley Ronald Clark ,  Gunter Heine

发明人： Hans Leuthold ,  Coda H. Pan ,  David John Jennings ,  Lakshman Nagarathnam ,  Raquib U. Khan ,  Wesley Ronald Clark ,  Gunter Heine

IPC分类号： F16C33/10 ,  F16C33/72 ,  F16C33/74 ,  G11B19/20 ,  G11B33/14 ,  F16C17/10

CPC分类号： F16C33/74 ,  F16C17/026 ,  F16C17/045 ,  F16C33/103 ,  F16C33/107 ,  G11B19/2009 ,  G11B33/148 ,  F16C2370/12 ,  G11B33/1446

摘要： A hydrodynamic bearing design is disclosed incorporating a flexible membrane at one end of the fluid gap in the hydrodynamic bearing. If voids exist in the fluid, and if changes in the size of these voids or bubbles occur with changes in temperature or pressure in which the disc drive is being used, then the volume of the fluid will change, and increase relative to the change in size of the volume of the surrounding physical part. The flexible membrane will yield to the increased pressure of the increasing volume of the fluid. The membrane essentially acts as a spring whose spring force is overcome by the pressure created by or accompanying a increase in volume in which the lubricating fluid is contained, and preventing its escape or being forced out of the inner region of the bearing.

摘要翻译： 公开了一种流体动力轴承设计，其在流体动力轴承中的流体间隙的一端处并入柔性膜。 如果流体中存在空隙，并且如果在使用盘驱动器的温度或压力的变化中发生这些空隙或气泡的尺寸的变化，则流体的体积将改变，并且相对于 周围物体的体积大小。 柔性膜将产生增加的流体体积的增加的压力。 膜基本上起到弹簧的作用，其弹簧力由于容纳润滑液的体积增加而产生的压力克服，并且防止其从轴承的内部区域中排出或被迫离开。

公开(公告)号：US5524986A

公开(公告)日：1996-06-11

申请号：US284126

申请日：1994-08-02

申请人： Hans Leuthold ,  Coda H. Pan ,  David J. Jennings ,  Lakshman Nagarathnam ,  Raquib U. Khan ,  Wesley R. Clark ,  Gunter Heine

发明人： Hans Leuthold ,  Coda H. Pan ,  David J. Jennings ,  Lakshman Nagarathnam ,  Raquib U. Khan ,  Wesley R. Clark ,  Gunter Heine

IPC分类号： F16C33/10 ,  F16C33/72 ,  F16C33/74 ,  G11B19/20 ,  G11B33/14 ,  F16C32/06

CPC分类号： F16C33/74 ,  F16C17/026 ,  F16C17/045 ,  F16C33/103 ,  F16C33/107 ,  G11B19/2009 ,  G11B33/148 ,  F16C2370/12 ,  G11B33/1446

摘要： A hydrodynamic bearing incorporates a flexible membrane at one end of the fluid gap in the hydrodynamic bearing. If voids exist in the fluid, and if changes in the size of these voids or bubbles occur with changes in temperature or pressure in which the disc drive is being used, then the volume of the fluid will change, and increase relative to the change in size of the volume of the surrounding physical part. The flexible membrane will yield to the increased pressure of the increasing volume of the fluid. The membrane essentially acts as a spring whose spring force is overcome by the pressure created by or accompanying a increase in volume of the fluid. As this happens, the spring force of the membrane is overcome, the membrane relaxes and forms a bladder, effectively increasing the volume in which the lubricating fluid is contained, and preventing its escape or being forced out of the inner region of the bearing. In this way, the fluid remains in the bearing and will not enter the surrounding atmosphere, nor will it be lost from the journal bearing region so that the hydrodynamic bearing is not as effective, when the temperature decreases or the pressure drops.

摘要翻译： 流体动力轴承在流体动力轴承中的流体间隙的一端处包含柔性膜。 如果流体中存在空隙，并且如果在使用盘驱动器的温度或压力的变化中发生这些空隙或气泡的尺寸的变化，则流体的体积将改变，并且相对于 周围物体的体积大小。 柔性膜将产生增加的流体体积的增加的压力。 膜基本上起弹簧的作用，其弹簧力由流体的体积增加产生的压力或伴随着流体体积的增加而克服。 发生这种情况时，膜的弹簧力被克服，膜松弛并形成气囊，有效地增加容纳润滑液的体积，并防止其逃逸或被迫离开轴承的内部区域。 以这种方式，流体保持在轴承中并且不会进入周围的大气，也不会从轴颈轴承区域中流失，使得当温度降低或压力下降时，流体动力轴承不那么有效。