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1. 发明授权

US5533812A Single plate hydrodynamic bearing with self-balancing fluid level 失效
公开(公告)号：US5533812A
公开(公告)日：1996-07-09
申请号：US279199
申请日：1994-07-22
申请人： Hans Leuthold , David J. Jennings , Gunter Heine , Lakshman Nagarathnam
发明人： Hans Leuthold , David J. Jennings , Gunter Heine , Lakshman Nagarathnam
IPC分类号： F16C17/10 , F16C33/10 , G11B19/20 , F16C32/06
CPC分类号： F16C17/107 , F16C33/107 , G11B19/2009 , F16C2370/12
摘要： A thrust plate with grooved surfaces within a hydrodynamic bearing establishes pressure gradients which cause the lubricating fluid for the bearing to reliably remain within the region of the hydrodynamic bearing, with the pressure gradient imposed on the fluid causing the fluid to flow toward the center of the bearing rather than to be caused to be forced outward toward the far end of the bearing which could potentially result in a leakage of the fluid.

2. 发明授权

US5524986A Fluid retention principles for hydrodynamic bearings 失效
标题翻译：流体动力学轴承的流体保留原理
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。

3. 发明授权

US5930075A Disc drive spindle motor having hydro bearing with optimized lubricant viscosity 失效
标题翻译：具有优化润滑剂粘度的液压轴承的盘式驱动主轴电机
公开(公告)号：US5930075A
公开(公告)日：1999-07-27
申请号：US737437
申请日：1997-10-10
申请人： Raquib U. Khan , Hans Leuthold , David J. Jennings , Gregory I. Rudd , Gunter K. Heine
发明人： Raquib U. Khan , Hans Leuthold , David J. Jennings , Gregory I. Rudd , Gunter K. Heine
IPC分类号： C10M171/00 , F16C33/10 , G11B19/20 , H02K5/16
CPC分类号： F16C33/109 , C10M171/00 , F16C17/026 , G11B19/2009 , C10M2201/065 , C10M2201/066 , C10M2201/084 , C10M2203/1006 , C10M2203/1025 , C10M2203/1045 , C10M2203/1065 , C10M2203/1085 , C10M2205/00 , C10M2205/02 , C10M2205/0206 , C10M2207/023 , C10M2207/026 , C10M2207/027 , C10M2207/10 , C10M2207/28 , C10M2207/281 , C10M2207/282 , C10M2207/2825 , C10M2207/283 , C10M2207/2835 , C10M2207/2855 , C10M2207/286 , C10M2207/288 , C10M2207/34 , C10M2213/00 , C10M2213/023 , C10M2213/04 , C10M2213/043 , C10M2213/06 , C10M2213/0606 , C10M2213/0623 , C10M2215/04 , C10M2215/06 , C10M2215/064 , C10M2215/065 , C10M2215/066 , C10M2215/067 , C10M2215/068 , C10M2215/22 , C10M2215/221 , C10M2215/223 , C10M2215/225 , C10M2215/226 , C10M2215/26 , C10M2215/30 , C10M2219/044 , C10M2219/066 , C10M2219/068 , C10M2219/082 , C10M2219/083 , C10M2219/086 , C10M2219/10 , C10M2219/102 , C10M2219/104 , C10M2219/106 , C10M2219/108 , C10M2223/04 , C10M2223/041 , C10M2223/042 , C10M2223/043 , C10M2223/045 , C10M2223/047 , C10N2210/03 , C10N2220/02 , C10N2240/00 , C10N2240/02 , C10N2240/22 , C10N2240/30 , C10N2240/50 , C10N2240/52 , C10N2240/54 , C10N2240/56 , C10N2240/58 , C10N2240/60 , C10N2240/66 , F16C2370/12
摘要： A disc drive data storage system according to the present invention includes a housing, a central axis, a stationary member which is fixed with respect to the housing and coaxial with the central axis, and a rotatable member which is rotatable about the central axis with respect to the stationary member. A stator is fixed with respect to the housing. A rotor is supported by the rotatable member and is magnetically coupled to the stator. At least one data storage disc is attached to and is coaxial with the rotatable member. A hydro bearing interconnects the stationary member and the rotatable member and includes a blend of base fluids. The base fluids in the blend are selected such that one of the base fluids has a viscosity that is greater than a desired viscosity selected for the disc drive, another of the base fluids has a viscosity that is less than the desired viscosity and the blend of base fluids has a viscosity that is within a selected range of the desired viscosity.
摘要翻译： PCT No.PCT / US96 / 17131 Sec。 371日期：1997年10月10日 102（e）日期1997年10月10日PCT 1996年10月25日PCT公布。公开号WO97 / 16828 PCT 日本1997年5月9日根据本发明的盘驱动数据存储系统包括壳体，中心轴线，相对于壳体固定并与中心轴线同轴的固定构件，以及可旋转构件，中心轴相对于固定构件。定子相对于壳体固定。转子由可旋转构件支撑并且磁耦合到定子。至少一个数据存储盘被附接到可旋转构件并且与可旋转构件同轴。水压轴承将固定构件和可旋转构件互连，并且包括基础流体的混合物。选择共混物中的基础流体使得一种基础流体具有大于为盘驱动器选择的所需粘度的粘度，另一种基础流体具有小于所需粘度的粘度和基础液体具有在所需粘度的选定范围内的粘度。

4. 发明授权

US5487608A Single plate hydrodynamic bearing with self-balancing fluid level and fluid circulation 失效
标题翻译：单板流体动力轴承，具有自平衡液位和流体循环
公开(公告)号：US5487608A
公开(公告)日：1996-01-30
申请号：US278754
申请日：1994-07-22
申请人： Hans Leuthold , David J. Jennings , Wesley R. Clark , Raquib Khan , Guenther Heine
发明人： Hans Leuthold , David J. Jennings , Wesley R. Clark , Raquib Khan , Guenther Heine
IPC分类号： F16C17/10 , F16C33/10
CPC分类号： F16C17/107 , F16C33/107
摘要： The present invention includes four sections or partitions: two thrust bearings which are formed by the sides of a grooved thrust plate and corresponding countersurfaces, the thrust bearings designed to cause fluid flow in a single direction up around the rotating thrust plate and upward along the surface of a rotating journal, and two journal bearings formed side-by-side on the journal formed between a rotating shaft and a bushing with multiple spiral-grooved sections being formed on the rotating shaft or in the stationary bushing. The two journal bearings are separated by a circumferential groove in the shaft which is connected by a radial bore to a hollow reservoir in the shaft for providing fluid to the journal bearing and the thrust bearing. By providing this bore and a second bore located near to the thrust bearing, the boundary conditions for the combined journal bearings and thrust bearings are fixed and a stable rotating shaft is achieved.
摘要翻译：本发明包括四个部分或隔板：两个推力轴承，由推力推力板的侧面和对应的对接面形成，推力轴承设计成使流体沿单一方向沿着旋转止推板向上流动并沿着表面向上一个旋转轴颈和两个在轴颈上并排形成的轴颈轴颈，形成在旋转轴和衬套之间，多个螺旋槽部分形成在旋转轴上或固定衬套中。两个轴颈轴承由轴中的圆周凹槽分隔开，该圆周槽通过径向孔连接到轴中的中空容器中，用于向轴颈轴承和止推轴承提供流体。通过提供该孔和位于推力轴承附近的第二孔，组合的轴颈轴承和推力轴承的边界条件是固定的，并且实现了稳定的旋转轴。

5. 发明授权

US5520038A Device for manufacturing a groove bearing 失效
标题翻译：槽轴承制造装置
公开(公告)号：US5520038A
公开(公告)日：1996-05-28
申请号：US279194
申请日：1994-07-22
申请人： Wesley R. Clark , David J. Jennings
发明人： Wesley R. Clark , David J. Jennings
IPC分类号： B21D17/04 , B21D53/10 , F16C33/10 , B21D15/00 , B21D19/00
CPC分类号： F16C33/1065 , B21D17/04 , B21D53/10
摘要： A moveable cage which has a pattern of holes surrounding and concentric with a central axis of the cage, and a short hard pin located within the cage, and movable back and forth between the two ends of the cage. A single drive device attached to the cage causes both translation and rotation of the cage. As the cage is advanced and rotated, the interior pin is caused to move backward and forward as the balls roll over the surface of the pin, so that the wear on the balls and on the surface of the interior pin is evenly distributed.
摘要翻译：具有围绕保持架的中心轴线并且同心的孔的图形的可移动保持架，以及位于保持架内的短的硬销，并且在保持架的两端之间来回移动。连接到保持架上的单个驱动装置引起笼的平移和旋转。当保持架前进并旋转时，随着滚珠在销的表面上滚动，使内销向后和向前移动，使得球上的磨损和内销的表面均匀分布。

6. 发明授权

US06741420B2 Hydrodynamic spindle motor with an internally disposed heating element 有权
标题翻译：具有内置加热元件的流体动力主轴电机
公开(公告)号：US06741420B2
公开(公告)日：2004-05-25
申请号：US09894809
申请日：2001-06-28
申请人： David J. Jennings , John Elsing
发明人： David J. Jennings , John Elsing
IPC分类号： G11B1920
CPC分类号： G11B19/2009 , F16C17/105 , F16C17/243 , F16C33/103 , F16C2370/12 , G11B33/14 , H02K7/088 , H02K15/125
摘要： A hydrodynamic spindle motor including an internally disposed heating element in a stationary spindle portion having a spindle hub rotatably coupled thereto. The hydrodynamic spindle motor has particular application for supporting discs for co-rotation for a disc drive. The heating element is activated to control viscosity of a hydrodynamic fluid of a hydrodynamic bearing rotationally supporting the spindle hub relative to the stationary spindle. Operation of the heating element reduces viscosity of the hydrodynamic fluid to reduce motor power requirements and improve “up-to-speed” time.
摘要翻译：一种流体动力主轴电动机，其包括在固定心轴部分中的内部设置的加热元件，其具有可旋转地联接到其上的心轴毂。流体动力主轴电动机具有用于支撑用于盘驱动器的共同旋转的盘的特别应用。激活加热元件以控制流体动力轴承的流体动力流体的粘度，该流体动力轴承相对于固定主轴旋转地支撑主轴毂。加热元件的操作降低了流体动力流体的粘度，从而降低了电机的功率需求并提高了“高速”时间。

7. 发明授权

US06525440B1 Thermal compensation spindle for ceramic ball bearings 失效
标题翻译：陶瓷球轴承热补偿主轴
公开(公告)号：US06525440B1
公开(公告)日：2003-02-25
申请号：US09556888
申请日：2000-04-19
申请人： John W. Elsing , David J. Jennings , Martin F. Byl , Jeffery A. LeBlanc , Robert M. Pelstring
发明人： John W. Elsing , David J. Jennings , Martin F. Byl , Jeffery A. LeBlanc , Robert M. Pelstring
IPC分类号： H02K516
CPC分类号： G11B33/1406 , F16C19/525 , F16C33/32 , F16C2370/12 , G11B19/2009 , G11B25/043 , H02K5/1732
摘要： This invention deals with compensating for thermal changes such that the spindle motor bearing preload remains as constant as possible throughout the disc drive operational temperature range. This is achieved by selecting a combination of materials with a composite thermal expansion that offsets the differential expansion of the steel bearing supports and the ceramic balls. The change in materials and configuration can be either that of the shaft, the hub, the support members, or any combination thereof.
摘要翻译：本发明涉及补偿热变化，使得在整个盘驱动器工作温度范围内，主轴电动机承受预载荷保持恒定。这通过选择具有抵消钢轴承座和陶瓷球的不同膨胀的复合热膨胀的材料的组合来实现。材料和构造的变化可以是轴，轮毂，支撑构件或其任何组合的变化。

8. 发明授权

US5457589A Hub-disc interface reducing hub reloaded disc surface curvature 失效
标题翻译：轮毂光盘接口还原轮毂重新加载盘表面曲率
公开(公告)号：US5457589A
公开(公告)日：1995-10-10
申请号：US205891
申请日：1994-03-02
申请人： Hans L. Leuthold , David J. Jennings , Gerold Heiner , Donald J. MacLeod
发明人： Hans L. Leuthold , David J. Jennings , Gerold Heiner , Donald J. MacLeod
IPC分类号： G11B17/022 , G11B25/04 , G11B17/02
CPC分类号： G11B25/043 , G11B17/022
摘要： A specially designed disc-mounting hub is provided having a disc-mounting flange protruding from a substantially cylindrical hub portion. A disc-mounting flange has a raised surface about the periphery of the flange upon which the disc rests. A lapped or ground spacer rests on the surface of the hub above the flange, and the disc in a single disc system or the bottommost disc in a multiple disc system rests upon this spacer. The opposite side of the disc in a single disc device is then clamped in place; if a plurality of discs are being utilized, the remainder of the discs are alternately stacked with spacer rings upon the first disc. A clamping ring is attached opposite the disc or discs-mounting flange and working cooperatively with the flange and ground spacer imparts a force upon the disc and spacer ring stack to hold the discs in place.e
摘要翻译：提供了一种特别设计的盘安装毂，其具有从基本上圆柱形的毂部突出的盘安装凸缘。碟形安装法兰具有围绕盘片的凸缘的周边的凸起表面。研磨垫片或研磨垫片位于凸缘上方的表面上，单盘系统中的盘或多盘系统中的最底盘位于该间隔件上。然后将单个盘装置中的盘的相对侧夹紧就位; 如果正在利用多个盘，则剩余的盘在第一盘上交替地与间隔环堆叠。夹紧环与盘或盘安装法兰相对地连接，并与法兰和接地垫片协同工作，在盘和间隔环叠层上施加力以将盘保持在适当位置。

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