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1. 发明授权

US07284910B2 Capillary seal with flow restrictors 有权
标题翻译：带流量限制器的毛细管密封
公开(公告)号：US07284910B2
公开(公告)日：2007-10-23
申请号：US10860941
申请日：2004-06-03
申请人： Daniel Dennis Dittmer , Robert Michael Pelstring , Anthony J. Aiella , Lynn Bich-Ouy Le , Hans L. Leuthold , Alan Lyndon Grantz
发明人： Daniel Dennis Dittmer , Robert Michael Pelstring , Anthony J. Aiella , Lynn Bich-Ouy Le , Hans L. Leuthold , Alan Lyndon Grantz
IPC分类号： F16C7/00 , F16C32/06
CPC分类号： F16C33/103 , F16C33/745 , F16C2370/12 , G11B19/2009
摘要： A disk drive motor having a capillary bearing seal is provided. In one embodiment, a disk drive motor includes a stationary assembly and a rotating assembly having a fluid dynamic journal bearing disposed therebetween. A capillary seal is defined proximate an upper end of the journal bearing and coupled to at least one re-circulation path. The capillary seal is configured to advantageously retain lubricating fluids within the motor when the motor is subjected to lateral shock.
摘要翻译：提供具有毛细管轴承密封件的盘驱动马达。在一个实施例中，磁盘驱动电动机包括固定组件和旋转组件，其具有设置在其间的流体动态轴颈轴承。毛细管密封件被限定在轴颈轴承的上端附近并耦合到至少一个再循环路径。毛细管密封件构造成当马达受到横向冲击时有利地将润滑流体保持在马达内。

2. 发明授权

US5801902A Setting bearing preload utilizing thermal exspansion/contraction 失效
标题翻译：使用热膨胀/收缩设置轴承预载
公开(公告)号：US5801902A
公开(公告)日：1998-09-01
申请号：US613827
申请日：1996-02-29
申请人： Klaus Dieter Koeppel , Robert Michael Pelstring , Alan Lyndon Grantz , Steven Craig Knoche
发明人： Klaus Dieter Koeppel , Robert Michael Pelstring , Alan Lyndon Grantz , Steven Craig Knoche
IPC分类号： F16C19/54 , F16C25/06 , F16C35/06 , G11B17/028 , G11B17/02 , F16C33/04
CPC分类号： F16C19/54 , F16C25/06 , F16C35/061 , G11B17/028
摘要： Bearings in a motor or bearing cartridge are positioned relative to the shaft and an outer sleeve, and a bearing retainer is then pressed against the outer races of one of the bearings in order to hold the bearings in position and preload the bearings in a desired orientation. The bearing retainer is chilled to a temperature significantly different than the sleeve with which it cooperates; shrinking the retainer to a size where it may be slip fit within a sleeve or other means for supporting the bearings in place. The retainer is then pressed against the outer races of the bearings, and held in place while it returns to the temperature of the sleeve within which it is fit. In this way, the preload is defined and maintained for the long term, as the retainer is pressed tightly against the outer race of the bearings; and the retainer is held within the sleeve as it returns to the same temperature being chilled is eliminated. In an alternative approach, the retainer ring may be heated to expand its internal diameter, and after being heated to a temperature which is greater than the sleeve, is slipped over the outside of the sleeve while the bearings are being held with the required preload.
摘要翻译：电动机或轴承盒中的轴承相对于轴和外套筒定位，然后将轴承保持器压靠在其中一个轴承的外座圈上，以便将轴承保持在适当位置并以期望的方向预紧轴承。轴承保持架被冷却至与其配合的套管明显不同的温度; 将保持器收缩到其可以滑动配合在套筒内的尺寸或用于将轴承支撑在适当位置的其它装置。然后将保持器压靠在轴承的外圈上，并保持在适当的位置，同时保持在其适合的套筒的温度。以这种方式，由于保持器紧紧地压靠在轴承的外圈上，预定义被长期限定和维持，并且当其返回到被冷却的相同温度时，保持器保持在套筒内。在替代方法中，保持环可以被加热以扩大其内径，并且在被加热到大于套筒的温度之后，在轴承被保持所需的预载荷的同时，滑动在套筒的外部。

3. 发明授权

US5982061A Spindle motor with two-piece shaft and connector 失效
标题翻译：主轴电机带两片轴和连接器
公开(公告)号：US5982061A
公开(公告)日：1999-11-09
申请号：US974277
申请日：1997-11-19
申请人： Alan Lyndon Grantz , Anthony Joseph Aiello , Robert Michael Pelstring , Klaus Dieter Kloeppel
发明人： Alan Lyndon Grantz , Anthony Joseph Aiello , Robert Michael Pelstring , Klaus Dieter Kloeppel
IPC分类号： H02K3/50 , H02K5/173 , H02K5/22 , H02K7/14 , H02K11/00
CPC分类号： H02K5/225 , H02K11/40 , H02K5/1737 , H02K2203/03 , H02K2211/03 , H02K3/50
摘要： An improved, simplified spindle motor design for use in a disc drive is provided, which utilizes a two-piece shaft and provides a central connector in the bottom section of the shaft which can be easily connected through the base to a power source for the motor. The improved spindle motor has a stator and motor connector which can be easily assembled into the spindle motor before the bearings and other elements are installed so that the cleaning and soldering of the stator and motor connector can be efficiently achieved. Further, the spindle and motor connector design incorporates an effective electrical grounding path between the stator and the central shaft of the spindle motor.
摘要翻译：提供了一种用于盘式驱动器的改进的简化的主轴电动机设计，其利用两件式轴，并且在轴的底部提供中心连接器，其可以容易地通过底座连接到电动机的电源。改进的主轴电动机具有定子和电动机连接器，其可以在安装轴承和其它元件之前容易地组装到主轴电机中，使得可以有效地实现定子和电动机连接器的清洁和焊接。此外，主轴和马达连接器设计包括定子和主轴马达的中心轴之间的有效的电接地路径。

4. 发明授权

US06955471B2 Cartridge style fluid dynamic bearing with conical or spherical bearing elements 失效
标题翻译：带锥形或球面轴承元件的筒式流体动力轴承
公开(公告)号：US06955471B2
公开(公告)日：2005-10-18
申请号：US10681804
申请日：2003-10-07
申请人： Gunter Heine , Alan Lyndon Grantz
发明人： Gunter Heine , Alan Lyndon Grantz
IPC分类号： F16C17/10 , F16C33/10 , F16C32/06
CPC分类号： F16C33/107 , F16C17/026 , F16C17/105
摘要： A fluid dynamic bearing cartridge includes a shaft or sleeve adapted to be fixed in place has at least one fluid dynamic bearing supporting the shaft and one or more seals at either end of the shaft. The seal arrangements may include a pair of centrifugal capillary seals at either end of the shaft. Alternatively, a grooved pumping seal or centrifugal capillary seal at one end may be used in combination with a static capillary seal, especially where a journal bearing defined along the shaft near the capillary seal has an imbalanced groove section.
摘要翻译：流体动力轴承盒包括适于固定在适当位置的轴或套筒，其具有支撑轴的至少一个流体动力轴承和轴的任一端的一个或多个密封件。密封装置可以包括在轴的任一端的一对离心毛细管密封件。或者，一端的槽式泵送密封或离心毛细管密封可以与静态毛细管密封件组合使用，特别是在靠近毛细管密封件的轴上限定的轴颈轴承具有不平衡的槽部分的情况下。

5. 发明授权

US06702465B2 Exclusion seal for fluid dynamic bearing motors 有权
标题翻译：流体动力轴承电机排除密封
公开(公告)号：US06702465B2
公开(公告)日：2004-03-09
申请号：US10017196
申请日：2001-12-13
申请人： Alan Lyndon Grantz , Robert Alan Nottingham , Jeffry Arnold LeBlanc , Troy Michael Herndon , Norbert Steve Parsoneault , Saul Ceballos , Hans Leuthold , Alexander Gredinberg
发明人： Alan Lyndon Grantz , Robert Alan Nottingham , Jeffry Arnold LeBlanc , Troy Michael Herndon , Norbert Steve Parsoneault , Saul Ceballos , Hans Leuthold , Alexander Gredinberg
IPC分类号： F16C3206
CPC分类号： F16C17/10 , F16C33/74 , F16C2370/12 , G11B19/2009
摘要： A method and apparatus for a conical bearing is provided having a seal shield having an angle supported from the hub or sleeve which surrounds the shaft, and extending at an angle toward the outer surface of the shaft and spaced slightly away from the upper angular surface of the cone. As the cone and seal shield rotate relative to one another, fluid is drawn toward the lower inner region of the reservoir. However, due to shock or the like, some fluid may reach the radial gap between the end of the shield and the outer surface of the shaft, therefore, a ring is either incorporated into the upper end of the cone or pressed against the axial outer end of the cone, defining an axial gap which is smaller than the radial gap. In a preferred form of the invention, the ratio is about 1:3. When oil is introduced to either of the two gaps (typically by shock), it transfers or typically comes to rest in the axial gap, since the capillary attractive force increases as the gap size decreases; therefore, with the axial gap being smaller than the radial gap the oil will tend to transfer to the axial gap. As the seal is spun up as the shield and cone rotate relative to one another, centrifugal force acting on the oil in the axial gap transfers the oil radially away from the radial gap and into the reservoir defined between the shield and the cone. This transfer typically happens in two stages. First the oil in the radial gap is transferred into the axial gap, typically in the first few seconds of operation. The oil remaining in the axial gap then transfers into the reservoir volume due to centrifugal pumping.
摘要翻译：提供了一种用于锥形轴承的方法和装置，其具有密封屏蔽件，所述密封屏蔽件具有从所述毂或套筒支撑的角度，所述角度围绕所述轴部并且以一定角度朝向所述轴的外表面延伸并且间隔开远离所述轴的所述上角度表面锥体当锥体和密封罩相对于彼此旋转时，流体被拉向储存器的下部内部区域。然而，由于冲击等，一些流体可能到达屏蔽端部和轴的外表面之间的径向间隙，因此，环被结合到锥体的上端或压靠在轴向外部锥体的端部，限定小于径向间隙的轴向间隙。在本发明的优选形式中，该比例为约1:3。当将油引入两个间隙中的任一个（通常是通过冲击）时，其转移或通常在轴向间隙中停留，因为毛细吸引力增加随着间隙尺寸的减小; 因此，随着轴向间隙小于径向间隙，油将倾向于转移到轴向间隙。随着密封件的旋转，屏蔽和锥体相对于彼此旋转，作用在轴向间隙中的油的离心力使油径向离开径向间隙并进入限定在护罩和锥体之间的储液器中。这种转移通常发生在两个阶段。首先，径向间隙中的油通常在操作的最初几秒内被转移到轴向间隙中。由于离心泵送，剩余在轴向间隙中的油然后转移到储存器容积中。

6. 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。

7. 发明授权

US06946764B2 Conical hybrid FDB motor 失效
标题翻译：锥形混合式FDB电机
公开(公告)号：US06946764B2
公开(公告)日：2005-09-20
申请号：US10328276
申请日：2002-12-23
申请人： Jeffry Arnold LeBlanc , Alan Lyndon Grantz , Troy Michael Herndon , Michael David Kennedy , Robert Alan Nottingham , Anthony Joseph Aiello , Klaus Dieter Kloeppel , Paco Flores
发明人： Jeffry Arnold LeBlanc , Alan Lyndon Grantz , Troy Michael Herndon , Michael David Kennedy , Robert Alan Nottingham , Anthony Joseph Aiello , Klaus Dieter Kloeppel , Paco Flores
IPC分类号： F16C17/04 , F16C17/10 , F16C33/10 , G11B19/20 , G11B25/04 , H02K7/08 , H02K5/16
CPC分类号： F16C33/107 , F16C17/045 , F16C17/105 , F16C2370/12 , G11B19/2018 , G11B25/043 , H02K7/085
摘要： A disc drive design comprising a shaft and sleeve supported for relative rotation by a journal type fluid dynamic bearing utilizing grooves on one of the shaft or sleeve surfaces. At least a part of the shaft is generally conical in cross-section, so that a downward force component is developed to balance upward pressure on end of shaft; this conical region typically includes a fluid dynamic bearing (grooves being on either the shaft or sleeve). A grooved pattern of a design similar to that usually found on a thrust plate may be defined on an axial end surface of the shaft or the counterplate facing the axial end of the shaft, so that thrust is created to maintain separation of the end of the shaft and the facing counterplate plate during relative rotation. A diamond-like coating (DLC) may be applied to the counterplate surface or to the end of the shaft; further, either the counterplate or shaft may be made out of ceramic material to enhance this performance. This coating may also be applied to the conical surface of the shaft or the facing surface of the sleeve.
摘要翻译：一种盘驱动器设计，其包括轴和套筒，所述轴和套筒通过利用在所述轴或套筒表面中的一个上的凹槽的轴颈型流体动力轴承来相对旋转。轴的至少一部分的横截面通常为圆锥形，从而形成向下的力分量以平衡轴端的向上压力; 该锥形区域通常包括流体动力轴承（在轴或套筒上的凹槽）。类似于通常在推力板上发现的设计的凹槽图案可以被限定在轴的轴向端表面上或面对轴的轴向端的对准板上，从而产生推力以保持分离轴和相对旋转时的面对对板。钻石状涂层（DLC）可以施加到对面板表面或轴的端部; 此外，对板或轴可以由陶瓷材料制成以增强该性能。该涂层也可以施加到轴的锥形表面或套筒的相对表面。

8. 发明授权

US06322252B1 Discrete fluid dynamic bearings 有权
标题翻译：离散流体动力轴承
公开(公告)号：US06322252B1
公开(公告)日：2001-11-27
申请号：US09292098
申请日：1999-04-14
申请人： Alan Lyndon Grantz , Gunter Karl Heine
发明人： Alan Lyndon Grantz , Gunter Karl Heine
IPC分类号： F16C3206
CPC分类号： F16C33/107 , F16C17/105
摘要： A discrete fluid dynamic bearing comprising a fluid dynamic bearing including a bearing cone mounted on a sleeve and defining in cooperation with a bearing seat having a surface facing an outer surface of the bearing cone across a fluid bearing gap, a first seal establishing a pressure gradient from a distal end of the sleeve toward the gap of the fluid dynamic bearing and a second seal on an opposite side of the fluid dynamic bearing from the first seal for establishing a positive, higher pressure toward the fluid bearing gap, the press established by the first and second seals maintain the fluid in the gap during relative rotation of the surfaces of the fluid dynamic bearing.
摘要翻译：一种离散流体动力轴承，包括流体动力轴承，该流体动力轴承包括安装在套筒上并与轴承座配合定义的轴承座，所述轴承座具有面向轴承圆锥体的外表面的表面横跨流体轴承间隙;第一密封件，其建立压力梯度从套筒的远端朝向流体动力轴承的间隙，并且在与第一密封件相对的流体动力轴承的相对侧上形成第二密封件，用于朝向流体轴承间隙建立正的更高的压力，由第一和第二密封件在流体动力轴承的表面的相对旋转期间将流体保持在间隙中。

9. 发明授权

US06181039B2 Centrifugal capillary seal for use with fluid dynamic bearings 有权
标题翻译：用于流体动力轴承的离心毛细管密封
公开(公告)号：US06181039B2
公开(公告)日：2001-01-30
申请号：US09330705
申请日：1999-06-11
申请人： Michael D. Kennedy , Alan Lyndon Grantz
发明人： Michael D. Kennedy , Alan Lyndon Grantz
IPC分类号： H02K708
CPC分类号： F16C33/106 , F16C33/74 , F16C2370/12 , G11B19/2009 , H02K7/086
摘要： A fluid dynamic bearing usable in a spindle motor where the bearing is defined between two relative rotating surfaces which are open to the air at both ends, allowing the use of a fixed shaft. At one end of the shaft, at least one high volume, low stiffness seal is used, in combination with a low volume, high stiffness seal. The pressure differential between these two seals is balanced by one or more high stiffness, low volume seals spaced axially away along the shaft.
摘要翻译：可用于主轴电动机的流体动力轴承，其中轴承限定在两端相对于空气开放的两个相对旋转表面之间，允许使用固定轴。在轴的一端，使用至少一个高体积，低刚度的密封，结合低体积，高刚度密封。这两个密封件之间的压差通过一个或多个沿着轴轴向间隔开的高刚度，低体积密封来平衡。

10. 发明授权

US6124776A Method for improved audible noise for spindle motor 有权
标题翻译：改善主轴电机噪音的方法
公开(公告)号：US6124776A
公开(公告)日：2000-09-26
申请号：US158641
申请日：1998-09-22
申请人： Anthony Joseph Aiello , Alan Lyndon Grantz
发明人： Anthony Joseph Aiello , Alan Lyndon Grantz
IPC分类号： H02K15/03 , H01F13/00
CPC分类号： H02K15/03
摘要： A method is disclosed for shaping the magnetization wave form or flux which is established by a magnetizer which magnetizes the magnet to be used in a motor. The magnetizer includes a steel core having a plurality of axially directed conductors; the annular magnet surrounds the core. A similarly shaped annular backiron surrounds the magnet; the backiron is separated from the magnet by an airgap of a fixed width. The gap is also referred to herein as an "airgap." However, airgap material need not be limited to air. Other materials (e.g., plastic) with similar magnetic permeability to that of air would work equally well. Introducing an airgap between the magnet outer diameter and the steel flux return path backiron results in widening the magnet flux pole-to-pole transition zone, increasing the flux transition angle, reducing torque ripple without serious negative impact on K.sub.e and torque.
摘要翻译：公开了一种用于使由磁化器建立的磁化波形或磁通成形的方法，磁化器磁化用于电动机的磁体。磁化器包括具有多个轴向导向的钢芯; 环形磁体围绕着磁芯。类似形状的环形背铁围绕磁体; 背铁通过固定宽度的气隙与磁体分离。这里的差距在这里也称为“气隙”。然而，气隙材料不必限于空气。具有与空气相似的磁导率的其它材料（例如塑料）将同样良好地工作。引入磁铁外径与钢筋返回路径后铁之间的气隙导致磁通极点到极点过渡区的扩大，增加磁通转变角度，减小转矩脉动，而不会对Ke和转矩产生严重的负面影响。

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