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1. 发明授权

US06292328B1 Both ends open fluid dynamic bearing having a journal in combination with a conical bearing 失效
标题翻译：两端打开流体动力轴承，其具有与锥形轴承组合的轴颈
公开(公告)号：US06292328B1
公开(公告)日：2001-09-18
申请号：US09536265
申请日：2000-03-27
申请人： Mohamed Mizanur Rahman , Gunter Karl Heine , Hans Leuthold , Raquib Uddin Khan
发明人： Mohamed Mizanur Rahman , Gunter Karl Heine , Hans Leuthold , Raquib Uddin Khan
IPC分类号： G11B1702
CPC分类号： G11B19/2009 , F16C17/102 , F16C33/107 , F16C33/745 , F16C2370/12 , G11B19/2018 , G11B19/2036
摘要： A method of creating an improved hydrodynamic fluid bearing is provided which is relatively insensitive to shock vibration changes in load and rotational speed. The hydrodynamic bearing motor in which the bearing is open at both the upper and lower ends, and in which the balance of fluid flow within the bearings is maintained. The assembly of the hydrodynamic bearing is more easily assembled, and the gaps are easily adjusted. In the design of the hydrodynamic bearing, the tolerances for assembly of the various components is minimized; that is, the critical nature of many of the gaps is diminished.
摘要翻译：提供了一种创建改进的流体动力流体轴承的方法，其对负载和转速的冲击振动变化相对不敏感。其中轴承在上端和下端都是敞开的流体动力轴承电动机，并保持轴承内的流体平衡。流体动力轴承的组装更容易组装，并且容易调节间隙。在流体动力轴承的设计中，各种部件的组装公差最小化; 也就是说，许多差距的关键性质就会减弱。

2. 发明授权

US6069768A Spindle motor with multiple thrust plate fluid dynamic bearing 有权
标题翻译：主轴电机带多个推力板流体动力轴承
公开(公告)号：US6069768A
公开(公告)日：2000-05-30
申请号：US300006
申请日：1999-04-26
申请人： Gunter Karl Heine , Raquib Uddin Khan , Mohamed Mizanur Rahman , Hans Leuthold
发明人： Gunter Karl Heine , Raquib Uddin Khan , Mohamed Mizanur Rahman , Hans Leuthold
IPC分类号： F16C17/10 , F16C33/10 , G11B5/48 , G11B19/20 , G11B25/04 , H02K7/08 , G11B17/02 , F16C32/06
CPC分类号： G11B19/2009 , F16C17/107 , G11B25/043
摘要： A method to create an improved hydrodynamic bearing which is relatively insensitive to changes in load and rotational speed is provided, wherein the hydrodynamic bearing is useful in a spindle motor for a disc drive or the like which is stiffer than known standard spindle motors so that the stability of the system and specifically of the actuator arm and transducer relative to the rotating disc is optimized. The hydrodynamic bearing can also be used as a bearing cartridge or as the cartridge that may be incorporated into a spindle motor or the like, where the bearing includes a shaft and at least two independent bearings each comprising a thrust plate supported on the shaft and a counter plate incorporated in a sleeve which is capable of relative rotation around the shaft.
摘要翻译：提供了一种创建对载荷和转速变化相对不敏感的改进的流体动力轴承的方法，其中，流体动力轴承可用于比已知标准主轴马达更硬的盘驱动器等的主轴电机，使得优化了系统，特别是致动器臂和换能器相对于旋转盘的稳定性。流体动力轴承还可以用作轴承筒或作为可以并入主轴电机等的盒，其中轴承包括轴和至少两个独立的轴承，每个轴承包括支撑在轴上的止推板和计数板结合在能够围绕轴相对旋转的套筒中。

3. 发明授权

US6137650A Spindle motor with fluid dynamic bearing having a journal bearing in combination with a conical bearing 失效
标题翻译：具有流体动力轴承的主轴电机具有与锥形轴承组合的轴颈轴承
公开(公告)号：US6137650A
公开(公告)日：2000-10-24
申请号：US981338
申请日：1997-12-19
申请人： Gunter Karl Heine , Mohamed Mizanur Rahman , Raquib Uddin Khan , Hans Leuthold
发明人： Gunter Karl Heine , Mohamed Mizanur Rahman , Raquib Uddin Khan , Hans Leuthold
IPC分类号： G11B5/48 , F16C17/10 , F16C17/26 , F16C33/10 , F16C33/74 , G11B19/20 , H02K7/08 , G11B17/08
CPC分类号： G11B19/2009 , F16C17/102 , F16C33/107 , F16C33/745 , G11B19/2018 , G11B19/2036 , F16C2370/12
摘要： A hydrodynamic fluid bearing useful in a bearing cartridge which cartridge may be incorporated into a spindle motor or the like, where the bearing includes a shaft, a conical bearing supported on the shaft, and journal bearings located at least on one side and typically both above and below the conical bearing. A sleeve is mounted for rotation relative to the shaft and defines, in cooperation with the shaft, the gaps necessary for both the conical hydrodynamic bearing and the axial, journal bearings. At an end of the shaft, capillary seals are defined between the sleeve and the shaft so that fluid does not escape from the hydrodynamic bearing. The shaft itself includes a central hole, with bores communicating with both the conical bearing and the journal bearings to maintain appropriate pressure balances.In a further desirable feature, in some embodiments the diameter of one end of the shaft can be made greater than the diameter of the other end of the shaft. This allows for making the gaps between the shaft and the surrounding sleeve or journal to be greater where the diameter of the fixed shaft is greater, reducing the need for tight tolerances within at least part of the hydrodynamic bearing. Preferably the top end of the shaft (i.e. the end of the shaft adjacent the wider end of the conical bearing) has the journal bearing with greater diameter.
摘要翻译： PCT No.PCT / US97 / 23925 Sec。 371 1997年12月19日第 102（e）日期1997年12月19日PCT 1997年12月19日PCT公布。第WO98 / 48419号公报日期1998年10月29日一种用于轴承筒的流体动力学流体轴承，其中可以将筒体并入到主轴电机等中，其中轴承包括轴，支撑在轴上的锥形轴承和至少位于一个上的轴颈轴承并且通常在锥形轴承的上方和下方。安装套筒相对于轴线旋转，并与轴配合限定锥形流体动力轴承和轴向轴颈轴承所需的间隙。在轴的端部，在套筒和轴之间限定毛细管密封，使得流体不会从流体动力轴承逸出。轴本身包括中心孔，孔与锥形轴承和轴颈轴承连通，以保持适当的压力平衡。在另一个期望的特征中，在一些实施例中，轴的一端的直径可以制成大于轴的另一端的直径。这允许在固定轴的直径更大的情况下使得轴和周围的套筒或轴颈之间的间隙更大，减少了至少部分流体动力轴承内的严格公差的需要。优选地，轴的顶端（即，与锥形轴承的较宽端相邻的轴的端部）具有较大直径的轴颈轴承。

4. 发明授权

US6130802A Both ends open fluid dynamic bearing having a journal in combination with a conical bearing 失效
标题翻译：两端打开流体动力轴承，其具有与锥形轴承组合的轴颈
公开(公告)号：US6130802A
公开(公告)日：2000-10-10
申请号：US981548
申请日：1997-12-19
申请人： Mohamed Mizanur Rahman , Gunter Karl Heine , Hans Leuthold , Raquib Uddin Khan
发明人： Mohamed Mizanur Rahman , Gunter Karl Heine , Hans Leuthold , Raquib Uddin Khan
IPC分类号： F16C17/10 , F16C17/26 , F16C33/10 , F16C33/74 , G11B19/20 , G11B17/02
CPC分类号： F16C33/107 , F16C17/102 , F16C33/745 , F16C41/008 , G11B19/2009 , F16C2370/12
摘要： A method of creating an improved hydrodynamic fluid bearing is provided which is relatively insensitive to shock vibration changes in load and rotational speed. The hydrodynamic bearing motor in which the bearing is open at both the upper and lower ends, and in which the balance of fluid flow within the bearings is maintained. The assembly of the hydrodynamic bearing is more easily assembled, and the gaps are easily adjusted. In the design of the hydrodynamic bearing, the tolerances for assembly of the various components is minimized that is, the critical nature of many of the gaps is diminished.
摘要翻译： PCT No.PCT / US97 / 23640 Sec。 371 1997年12月19日第 102（e）日期1997年12月19日PCT 1997年12月19日PCT公布。出版物WO98 / 48188 日期1998年10月29日提供了一种创建改进的流体动力流体轴承的方法，其对负载和转速的冲击振动变化相对不敏感。其中轴承在上端和下端都是敞开的流体动力轴承电动机，并保持轴承内的流体平衡。流体动力轴承的组装更容易组装，并且容易调节间隙。在流体动力轴承的设计中，各种部件的组装公差最小化，即许多间隙的关键性质减弱。

5. 发明授权

US6069767A Both ends open fluid dynamic bearing with multiple thrust plates 失效
标题翻译：两端用多个推力板打开流体动力轴承
公开(公告)号：US6069767A
公开(公告)日：2000-05-30
申请号：US043065
申请日：1997-12-19
申请人： Raquib Uddin Khan , Gunter Karl Heine , Hans Leuthold , Mohamed Mizanur Rahman
发明人： Raquib Uddin Khan , Gunter Karl Heine , Hans Leuthold , Mohamed Mizanur Rahman
IPC分类号： F16C17/10 , F16C33/10 , G11B5/48 , G11B17/02 , G11B19/20 , G11B25/04 , H02K7/14
CPC分类号： G11B25/043 , F16C17/102 , F16C33/10 , F16C33/109 , G11B19/2009 , F16C2370/12
摘要： The third dynamic bearing includes a fixed shaft and a sleeve rotating around and surrounding the shaft, and at least first and second thrust plates separated by a portion of the shaft. The shaft includes an axial hole to vent appropriate positions inside the bearing. The axial hole extends from one end of the shaft past at least one of the thrust plates. The axial hole is connected by a radial bore to the bearing gap at a location between the thrust plate closest to that one end of the shaft and the facing counterplate.Alternatively, the axial hole can extend beyond the farthest thrust plate from the one end of the shaft, and can be connected to the bearing gap by a second radial cross-bore. A meniscus forms in the bearing gap on either side of each vent opening, decoupling adjacent bearing sections of the hydrodynamic bearing.
摘要翻译： PCT No.PCT / US97 / 24261 Sec。 371 1997年12月19日第 102（e）日期1997年12月19日PCT 1997年12月19日PCT公布。第WO98 / 48422号公报日期1998年10月29日第三动态轴承包括固定轴和围绕轴周围旋转的套筒，以及由轴的一部分分开的至少第一和第二推力板。轴包括用于排出轴承内的适当位置的轴向孔。轴向孔从轴的一端延伸通过至少一个止推板。轴向孔通过径向孔连接到轴承间隙处，位于最靠近轴的一端的推力板和面向对置板之间的位置。或者，轴向孔可以从轴的一端延伸超出最远的推力板，并且可以通过第二径向横向孔连接到轴承间隙。在每个通气口的任一侧上的轴承间隙中形成弯液面，使流体动力轴承的相邻轴承部分脱离。

6. 发明授权

US6005748A Spindle motor with multiple thrust plate fluid dynamic bearing 失效
公开(公告)号：US6005748A
公开(公告)日：1999-12-21
申请号：US994100
申请日：1997-12-19
申请人： Gunter Karl Heine , Raquib Uddin Khan , Mohamed Mizanur Rahman , Hans Leuthold
发明人： Gunter Karl Heine , Raquib Uddin Khan , Mohamed Mizanur Rahman , Hans Leuthold
IPC分类号： F16C17/10 , F16C33/10 , G11B5/48 , G11B19/20 , G11B25/04 , H02K7/08 , G11B17/02
CPC分类号： G11B19/2009 , F16C17/107 , G11B25/043
摘要： A method to create an improved hydrodynamic bearing which is relatively insensitive to changes in load and rotational speed is provided, wherein the hydrodynamic bearing is useful in a spindle motor for a disc drive or the like which is stiffer than known standard spindle motors so that the stability of the system and specifically of the actuator arm and transducer relative to the rotating disc is optimized. The hydrodynamic bearing can also be used as a bearing cartridge or as the cartridge that may be incorporated into a spindle motor or the like, where the bearing includes a shaft and at least two independent bearings each comprising a thrust plate supported on the shaft and a counter plate incorporated in a sleeve which is capable of relative rotation around the shaft.

7. 发明授权

US5997179A Multifluid application in hydrodynamic fluid bearing to reduce evaporation and control stiffness and other bearing performance 失效
标题翻译：多流体应用于流体动力流体轴承，以减少蒸发和控制刚度等轴承性能
公开(公告)号：US5997179A
公开(公告)日：1999-12-07
申请号：US64804
申请日：1998-04-22
申请人： Raquib Uddin Khan , Gunter Karl Heine , Mohamed Mizanur Rahman
发明人： Raquib Uddin Khan , Gunter Karl Heine , Mohamed Mizanur Rahman
IPC分类号： F16C33/10 , G11B19/20 , F16C17/10
CPC分类号： G11B19/2018 , F16C33/10 , F16C33/1035 , F16C2370/12
摘要： The hydrodynamic bearing gap from one end to the other of the shaft and sleeve combination is effectively separated into sections, with the fluid in each bearing section being contained within that section. The viscosity of the fluid in each bearing section can then be selected to optimize the characteristics of the entire hydrodynamic bearing. Typically, the sections of the bearing adjacent each open end of the bearing would be filled with a fluid with relatively high viscosity. The remaining sections, toward the center of bearing, would typically be filled with a lower viscosity fluid, liquid or gas so that the power consumption within the motor itself would be minimized.
摘要翻译：轴和套筒组合的一端到另一端的流体动力轴承间隙被有效地分成多个部分，每个轴承部分中的流体都包含在该部分内。然后可以选择每个轴承部分中的流体的粘度以优化整个流体动力轴承的特性。通常，与轴承的每个开口端相邻的轴承部分将填充有具有较高粘度的流体。剩余部分朝向轴承中心通常将填充较低粘度的流体，液体或气体，使得电动机本身内的功率消耗将最小化。

8. 发明授权

US06799892B2 Hybrid spindle bearing 有权
标题翻译：混合主轴轴承
公开(公告)号：US06799892B2
公开(公告)日：2004-10-05
申请号：US10186479
申请日：2002-06-28
申请人： Hans Leuthold , Michael D. Kennedy , Alan Lyndon Grantz , Susan Immisch , Norbert Steve Parsoneault , Mohamed Mizanur Rahman
发明人： Hans Leuthold , Michael D. Kennedy , Alan Lyndon Grantz , Susan Immisch , Norbert Steve Parsoneault , Mohamed Mizanur Rahman
IPC分类号： F16C1710
CPC分类号： F16C17/10 , F16C33/1005 , F16C33/1025 , F16C2370/12 , G11B19/2018
摘要： A bearing system in which an axially stiff narrow gap fluid dynamic gas bearing is preloaded by an axially less stiff larger gap fluid dynamic bearing. As an example two fluid dynamic bearings are provided spaced apart along a shaft, one of the bearings comprising a fluid dynamic bearing, the other comprising an air bearing. The fluid dynamic bearing has a larger gap, while the air bearing has a relatively small gap. The overall working surface area of the air bearing may be twice as much or more than the working surface area of the fluid bearing.
摘要翻译：轴承系统，其中轴向刚性窄间隙流体动态气体轴承由轴向较小刚度较大的间隙流体动力轴承预加载。作为示例，两个流体动力轴承沿着轴间隔开设置，其中一个轴承包括流体动力轴承，另一个包括空气轴承。流体动力轴承具有较大的间隙，而空气轴承的间隙相对较小。空气轴承的总体工作表面积可以是流体轴承的工作表面面积的两倍或更多。

9. 发明授权

US06473271B1 Aerodynamically streamlined actuator arm for disc drives 失效
标题翻译：用于磁盘驱动器的空气动力学流线型执行器臂
公开(公告)号：US06473271B1
公开(公告)日：2002-10-29
申请号：US09590559
申请日：2000-06-09
申请人： Mohamed Mizanur Rahman , Hans Leuthold
发明人： Mohamed Mizanur Rahman , Hans Leuthold
IPC分类号： G11B555
CPC分类号： G11B5/4833
摘要： A disc drive actuator arm is an extended arm having forward edge to engage fluid flow due to rotation of the disc, a rear edge, and a top surface and a bottom surface along which fluid flows. The top and bottom surfaces join the forward and rear edges, and the fluid flow has a boundary layer along the top surface and the bottom surface. The arm has an aerodynamic cross-section so that the fluid flow boundary layer does not separate at the forward and rear edges. The fluid flow past the arm from the forward edge to the rear edge is substantially laminar to prevent vortex shedding.
摘要翻译：盘驱动器致动器臂是具有前缘的延伸臂，其由于盘的旋转，后边缘以及流体流过的顶表面和底表面而接合流体流动。顶表面和底表面连接前后边缘，流体流沿着顶表面和底表面具有边界层。臂具有空气动力学横截面，使得流体流动边界层在前边缘和后边缘处不分离。从前缘到后边缘的液体流经过臂大体层流以防止涡流脱落。

10. 发明授权

US06583952B1 In-hub spindle motor with separate fluid dynamic bearings 有权
标题翻译：内置主轴电机，带独立的流体动力轴承
公开(公告)号：US06583952B1
公开(公告)日：2003-06-24
申请号：US09621938
申请日：2000-07-24
申请人： Alan Lyndon Grantz , Norbert Steven Parsoneault , Samnathan Murthy , Hans Leuthold , Mohamed Mizanur Rahman
发明人： Alan Lyndon Grantz , Norbert Steven Parsoneault , Samnathan Murthy , Hans Leuthold , Mohamed Mizanur Rahman
IPC分类号： G11B1702
CPC分类号： F16C17/105 , F16C33/103 , F16C33/107 , F16C33/74 , F16C2370/12 , G11B19/2009 , H02K5/124
摘要： A hydrodynamic bearing system where the bearing includes a shaft and two independent bearings, including a top cone or bi-sphere and a bottom cone or bi-sphere separated by a segment of the shaft. The bearing includes a hub supported bearing element rotating around the shaft and the shaft supported top cone and bottom cone; complementary surfaces of the bearing element and the cone define a narrow gap between the bearing support element for the bearing fluid. Sealing plates or seal elements define a fluid gap with a radially extending face of the cone; a gap also exists between an interior surface portion of each cone and the shaft. These gaps are connected so that separate flow paths are established, one around the top cone or bi-sphere and one around the bottom cone or bi-sphere. By providing two independent bearings, the stator can be mounted to the shaft, facing magnets supported on the hub to form an in-hub motor. When the load or RPM changes, the fluid pressure or movement in each bearing may change but the function of the bearing and its ability to provide stiffness and stability to the system will not be lessened.
摘要翻译：一种流体动力轴承系统，其中轴承包括轴和两个独立的轴承，包括顶部锥体或双球体以及由轴的一部分分隔的底部锥体或双球体。轴承包括围绕轴旋转的轮毂支撑的轴承元件和轴支撑的顶锥和底锥; 轴承元件和锥体的互补表面限定用于轴承流体的轴承支撑元件之间的窄间隙。密封板或密封元件与锥体的径向延伸的表面限定流体间隙; 在每个锥体的内表面部分和轴之间也存在间隙。这些间隙被连接，使得形成单独的流动路径，一个围绕顶部圆锥体或双球体，一个围绕底部锥体或双球体。通过提供两个独立的轴承，定子可以安装到轴上，面向支撑在轮毂上的磁体，以形成内轮毂电机。当负载或RPM变化时，每个轴承中的流体压力或运动可能发生变化，但是轴承的功能及其对系统提供刚度和稳定性的能力将不会降低。

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