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1. 发明授权

US08308365B2 Air purging for a fluid dynamic bearing 有权
标题翻译：空气吹扫用于流体动力轴承
公开(公告)号：US08308365B2
公开(公告)日：2012-11-13
申请号：US12787325
申请日：2010-05-25
申请人： Anthony J. Aiello , Christopher M. Woldemar , Norbert S. Parsoneault , Alan L. Grantz
发明人： Anthony J. Aiello , Christopher M. Woldemar , Norbert S. Parsoneault , Alan L. Grantz
IPC分类号： F16C32/06 , G11B17/02 , G11B17/04
CPC分类号： F16C33/103 , F16C17/107 , F16C33/107 , F16C33/745 , F16C2370/12 , Y10T29/49639 , Y10T29/49826
摘要： A robust spindle motor is provided having improved shock resistance for fluid containment, as well as enhanced air purging characteristics. In an aspect, axial displacement of relatively rotating components is restricted by utilizing a limiter situated adjacent to a limiter bushing forming an axial limiter gap therebetween. A fluid channel, at least partially diverging, extends from a hydrodynamic bearing to the axial limiter gap, and continues to a region beyond the axial limiter gap. In an aspect, an axially diverging slot is situated adjacent to the axial limiter gap. Power is reduced by reducing viscous drag between relatively rotating components, hydrodynamic bearing length is increased, and higher stiffness of the hydrodynamic bearing is provided. Fluid volume may be increased, thereby offsetting fluid evaporation losses and allowing for the use of lower viscosity lubricants.
摘要翻译：提供了一种坚固的主轴电动机，其具有改进的防止流体容纳的抗冲击性，以及增强的空气净化特性。在一个方面，相对旋转部件的轴向位移通过利用与限制器衬套相邻的限制器来限制，该限制器在其间形成轴向限制器间隙。至少部分发散的流体通道从流体动力轴承延伸到轴向限制器间隙，并且继续到超出轴向限制器间隙的区域。在一个方面，轴向发散的狭槽位于轴向限制器间隙附近。通过减少相对旋转部件之间的粘滞阻力来降低动力，提高流体动力轴承长度，提供更高刚度的流体动力轴承。流体体积可能增加，从而抵消流体蒸发损失并允许使用较低粘度的润滑剂。

2. 发明申请

US20080317392A1 Air purging for a fluid dynamic bearing 有权
标题翻译：空气吹扫用于流体动力轴承
公开(公告)号：US20080317392A1
公开(公告)日：2008-12-25
申请号：US11821900
申请日：2007-06-25
申请人： Anthony J. Aiello , Christopher M. Woldemar , Norbert S. Parsoneault , Alan L. Grantz
发明人： Anthony J. Aiello , Christopher M. Woldemar , Norbert S. Parsoneault , Alan L. Grantz
IPC分类号： F16C32/06
CPC分类号： F16C33/103 , F16C17/107 , F16C33/107 , F16C33/745 , F16C2370/12 , Y10T29/49639 , Y10T29/49826
摘要： A robust spindle motor is provided having improved shock resistance for fluid containment, as well as enhanced air purging characteristics. In an aspect, axial displacement of relatively rotating components is restricted by utilizing a limiter situated adjacent to a limiter bushing forming an axial limiter gap therebetween. A fluid channel, at least partially diverging, extends from a hydrodynamic bearing to the axial limiter gap, and continues to a region beyond the axial limiter gap. In an aspect, an axially diverging slot is situated adjacent to the axial limiter gap. Power is reduced by reducing viscous drag between relatively rotating components, hydrodynamic bearing length is increased, and higher stiffness of the hydrodynamic bearing is provided. Fluid volume may be increased, thereby offsetting fluid evaporation losses and allowing for the use of lower viscosity lubricants.
摘要翻译：提供了一种坚固的主轴电动机，其具有改进的防止流体容纳的抗冲击性，以及增强的空气净化特性。在一个方面，相对旋转部件的轴向位移通过利用与限制器衬套相邻的限制器来限制，该限制器在其间形成轴向限制器间隙。至少部分发散的流体通道从流体动力轴承延伸到轴向限制器间隙，并且继续到超出轴向限制器间隙的区域。在一个方面，轴向发散的狭槽位于轴向限制器间隙附近。通过减少相对旋转部件之间的粘滞阻力来降低动力，提高流体动力轴承长度，提供更高刚度的流体动力轴承。流体体积可能增加，从而抵消流体蒸发损失并允许使用较低粘度的润滑剂。

3. 发明授权

US07758246B2 Air purging for a fluid dynamic bearing 有权
标题翻译：空气吹扫用于流体动力轴承
公开(公告)号：US07758246B2
公开(公告)日：2010-07-20
申请号：US11821900
申请日：2007-06-25
申请人： Anthony J. Aiello , Christopher M. Woldemar , Norbert S. Parsoneault , Alan L. Grantz
发明人： Anthony J. Aiello , Christopher M. Woldemar , Norbert S. Parsoneault , Alan L. Grantz
IPC分类号： F16C32/06 , G11B17/04 , G11B17/02
CPC分类号： F16C33/103 , F16C17/107 , F16C33/107 , F16C33/745 , F16C2370/12 , Y10T29/49639 , Y10T29/49826
摘要： A robust spindle motor is provided having improved shock resistance for fluid containment, as well as enhanced air purging characteristics. In an aspect, axial displacement of relatively rotating components is restricted by utilizing a limiter situated adjacent to a limiter bushing forming an axial limiter gap therebetween. A fluid channel, at least partially diverging, extends from a hydrodynamic bearing to the axial limiter gap, and continues to a region beyond the axial limiter gap. In an aspect, an axially diverging slot is situated adjacent to the axial limiter gap. Power is reduced by reducing viscous drag between relatively rotating components, hydrodynamic bearing length is increased, and higher stiffness of the hydrodynamic bearing is provided. Fluid volume may be increased, thereby offsetting fluid evaporation losses and allowing for the use of lower viscosity lubricants.
摘要翻译：提供了一种坚固的主轴电动机，其具有改进的防止流体容纳的抗冲击性，以及增强的空气净化特性。在一个方面，相对旋转部件的轴向位移通过利用与限制器衬套相邻的限制器来限制，该限制器在其间形成轴向限制器间隙。至少部分发散的流体通道从流体动力轴承延伸到轴向限制器间隙，并且继续到超出轴向限制器间隙的区域。在一个方面，轴向发散的狭槽位于轴向限制器间隙附近。通过减少相对旋转部件之间的粘滞阻力来降低动力，提高流体动力轴承长度，提供更高刚度的流体动力轴承。流体体积可能增加，从而抵消流体蒸发损失并允许使用较低粘度的润滑剂。

4. 发明申请

US20100247009A1 AIR PURGING FOR A FLUID DYNAMIC BEARING 有权
标题翻译：流体动力轴承的空气净化
公开(公告)号：US20100247009A1
公开(公告)日：2010-09-30
申请号：US12787325
申请日：2010-05-25
申请人： Anthony J. Aiello , Christopher M. Woldemar , Norbert S. Parsoneault , Alan L. Grantz
发明人： Anthony J. Aiello , Christopher M. Woldemar , Norbert S. Parsoneault , Alan L. Grantz
IPC分类号： F16C32/06 , B23P17/04
CPC分类号： F16C33/103 , F16C17/107 , F16C33/107 , F16C33/745 , F16C2370/12 , Y10T29/49639 , Y10T29/49826
摘要： A robust spindle motor is provided having improved shock resistance for fluid containment, as well as enhanced air purging characteristics. In an aspect, axial displacement of relatively rotating components is restricted by utilizing a limiter situated adjacent to a limiter bushing forming an axial limiter gap therebetween. A fluid channel, at least partially diverging, extends from a hydrodynamic bearing to the axial limiter gap, and continues to a region beyond the axial limiter gap. In an aspect, an axially diverging slot is situated adjacent to the axial limiter gap. Power is reduced by reducing viscous drag between relatively rotating components, hydrodynamic bearing length is increased, and higher stiffness of the hydrodynamic bearing is provided. Fluid volume may be increased, thereby offsetting fluid evaporation losses and allowing for the use of lower viscosity lubricants.
摘要翻译：提供了一种坚固的主轴电动机，其具有改进的防止流体容纳的抗冲击性，以及增强的空气净化特性。在一个方面，相对旋转部件的轴向位移通过利用与限制器衬套相邻的限制器来限制，该限制器在其间形成轴向限制器间隙。至少部分发散的流体通道从流体动力轴承延伸到轴向限制器间隙，并且继续到超出轴向限制器间隙的区域。在一个方面，轴向发散的狭槽位于轴向限制器间隙附近。通过减少相对旋转部件之间的粘滞阻力来降低动力，提高流体动力轴承长度，提供更高刚度的流体动力轴承。流体体积可能增加，从而抵消流体蒸发损失并允许使用较低粘度的润滑剂。

5. 发明授权

US07422371B2 Active hybrid FDB motor 有权
标题翻译：主动混合式FDB电机
公开(公告)号：US07422371B2
公开(公告)日：2008-09-09
申请号：US11054928
申请日：2005-02-09
申请人： Michael D. Kennedy , Alan L. Grantz , Anthony J. Aiello , Paco Flores , Klaus D. Kloeppel
发明人： Michael D. Kennedy , Alan L. Grantz , Anthony J. Aiello , Paco Flores , Klaus D. Kloeppel
IPC分类号： F16C32/06
CPC分类号： G11B19/2018 , F16C17/105 , F16C33/1015 , F16C33/107 , F16C39/02 , F16C2370/12 , H02K7/086
摘要： An active fluid bearing system is provided. In one example, the active fluid bearing system includes an interface region formed between an outer surface of an inner member and an opposing inner surface of an outer member. The inner and outer members are disposed for relative rotation of the inner and outer members, and thereby form an interface region having a hydrodynamic bearing region and an active bearing region. A liquid is disposed in the interface region at the hydrodynamic bearing region, and is further disposed in the active bearing region if the inner and outer members are not relatively rotating. The bearing system is operable for evacuating at least a portion of the liquid from the active bearing region during relative rotation of the inner and outer members. The active bearing region may be a journal bearing or a thrust bearing.
摘要翻译：提供了一种主动流体轴承系统。在一个示例中，主动流体轴承系统包括形成在内部构件的外表面和外部构件的相对的内表面之间的界面区域。内部和外部构件被布置成用于内部构件和外部构件的相对旋转，从而形成具有流体动力轴承区域和主动承受区域的界面区域。如果内部和外部构件不相对旋转，则液体设置在流体动力轴承区域的界面区域中，并且进一步设置在主动轴承区域中。轴承系统可操作用于在内部和外部构件的相对旋转期间从主动轴承区域排出至少一部分液体。主动轴承区域可以是轴颈轴承或止推轴承。

6. 发明授权

US07362022B2 Column capillary seal for FDB motors 有权
标题翻译： FDB电机的色谱柱毛细管密封
公开(公告)号：US07362022B2
公开(公告)日：2008-04-22
申请号：US11126932
申请日：2005-05-10
申请人： Paco Flores , Anthony J. Aiello , Klaus D. Kloeppel , Alan L. Grantz
发明人： Paco Flores , Anthony J. Aiello , Klaus D. Kloeppel , Alan L. Grantz
IPC分类号： H02K7/08
CPC分类号： H02K7/085 , F16C33/107 , F16C33/74 , H02K5/1675
摘要： For a motor having liquid lubricated bearing surface(s), aspects include providing a column shaped Capillary Seal (CS) for storing and supply lubricating liquid to the bearing surface(s). The column shaped CS may have a cross-section substantially topologically equivalent to a circle. Aspects include disposing the column shaped CS between relatively rotational motor members or between relatively irrotational motor members. Other aspects include disposition of the column shaped CS in a spiral shape where one opening of the CS fluidicly communicates with the bearing surface and another opening vents to a gas environment. Still other aspects include disposing the column shaped CS circumferentially on surfaces of generally cylindrical shaped motor members. Such surfaces may oppose a second surface that is one of relatively rotational and relatively irrotational vis the surface. The column shaped CS may circumscribe an axis of a rotating member or may be disposed parallel to the axis of the rotating member.
摘要翻译：对于具有液体润滑的轴承表面的电动机，方面包括提供用于将润滑液体储存和供应到支承表面的柱状毛细管密封（CS）。柱形CS可以具有基本上在拓扑上等同于圆的横截面。方面包括将柱形CS布置在相对旋转的马达构件之间或相对旋转的马达构件之间。其他方面包括将柱状CS设置成螺旋形状，其中CS的一个开口与支承表面流体连通，另一个开口通向气体环境。还有其它方面包括将柱状CS周向地设置在大致圆柱形的电动机构件的表面上。这种表面可以相对于相对于表面相对旋转和相对旋转的第二表面。柱形CS可以围绕旋转构件的轴线，或者可以平行于旋转构件的轴线设置。

7. 发明授权

US07284909B2 Hybrid orbital fluid dynamic bearing motor 失效
标题翻译：混合轨道动力轴承电机
公开(公告)号：US07284909B2
公开(公告)日：2007-10-23
申请号：US11021702
申请日：2004-12-23
申请人： Anthony J. Aiello , Hans Leuthold , Klaus D. Kloeppel , Paco Flores , Alan L. Grantz
发明人： Anthony J. Aiello , Hans Leuthold , Klaus D. Kloeppel , Paco Flores , Alan L. Grantz
IPC分类号： F16C17/10
CPC分类号： F16C17/102 , F16C17/107 , F16C33/107 , Y10S384/901
摘要： Hybrid orbital fluid dynamic bearing motors are disclosed. The motors achieve improved efficiency advantages observed in fluid dynamic bearing motors containing an orbital ring. In addition, the hybrid orbital FDB motor has serial thrust bearings and traditional style journal bearings, which provide typically higher radial and angular stiffness not observed in previous orbital fluid dynamic bearing motor designs. Designs for centering orbital rings are also disclosed.
摘要翻译：公开了混合轨道流体动力轴承电动机。电动机实现了在含有轨道环的流体动力轴承电机中观察到的改进的效率优势。此外，混合轨道FDB电机具有串联推力轴承和传统型轴颈轴承，其在先前的轨道流体动力轴承电机设计中未提供通常较高的径向和角度刚度。还公开了用于定心轨道环的设计。

8. 发明申请

US20120230617A1 GROOVE CONFIGURATION FOR A FLUID DYNAMIC BEARING 有权
标题翻译：流体动力轴承的配置
公开(公告)号：US20120230617A1
公开(公告)日：2012-09-13
申请号：US13447895
申请日：2012-04-16
申请人： Anthony J. Aiello
发明人： Anthony J. Aiello
IPC分类号： F16C32/06
CPC分类号： F16C33/1065 , F16C17/026 , F16C17/045 , F16C17/107 , F16C33/107
摘要： A groove configuration that improves angular stiffness in a fluid dynamic bearing is provided. A primary groove and a secondary groove are formed on a journal bearing or thrust bearing surface. The secondary groove apex induces a heightened pressure response at a localized area to counteract angular displacement. The primary groove extends a greater circumferential distance about the bearing surface as compared to the secondary groove. The secondary groove apex is also situated closer to an axial end of the journal bearing, or closer to an outer diameter of the thrust bearing, as compared to the primary groove apex. Bearing wear is prevented or minimized under gyroscopic loading. The improved angular stiffness may result in the heads of a storage device being accurately aligned with disc storage tracks. Discs may thus be designed with increased track densities, allowing for smaller discs and increased storage capacity of discs.
摘要翻译：提供了改善流体动力轴承中的角度刚度的凹槽构造。在轴颈轴承或止推轴承表面上形成有主槽和副槽。二次槽顶点在局部区域处引起增加的压力响应以抵消角位移。与第二槽相比，主槽相对于支承表面延伸更大的周向距离。与主槽顶点相比，次槽顶点也位于更靠近轴颈轴承的轴向端部，或者更靠近推力轴承的外径。在陀螺加载下防止或最小化轴承磨损。改善的角度刚度可能导致存储设备的头部与光盘存储轨迹精确对准。因此，盘可以设计成具有增加的轨道密度，允许较小的盘和增加盘的存储容量。

9. 发明授权

US08732954B2 Single thrust bearing fluid dynamic bearing motor 有权
标题翻译：单推力轴承液动力轴承电机
公开(公告)号：US08732954B2
公开(公告)日：2014-05-27
申请号：US12950383
申请日：2010-11-19
申请人： Anthony J. Aiello
发明人： Anthony J. Aiello
IPC分类号： B21D53/10 , F16C32/06
CPC分类号： F16C33/107 , F16C17/045 , F16C17/107 , F16C2370/12 , G11B19/2009 , G11B19/2018 , Y10T29/49639 , Y10T29/49645 , Y10T29/49696
摘要： A typical dynamic bearing design comprises a ring shaped or circular thrust plate mounted at or near the end of a shaft, the shaft defining together with a surrounding sleeve a journal bearing by providing grooves on only one of the two surfaces facing the gap between the shaft and sleeve. On the ring shaped thrust plate supported by the shaft, the traditional upward thrust bearing defined between the lower face of the thrust plate and the facing surface of the sleeve is maintained; but no grooves are on the surface of the thrust plate distant from the shaft and a facing counterplate surface. Further, the journal bearing is defined to have an asymmetry so that a bias force pressure along the surface of the shaft toward the thrust plate is established. The combination of the journal groove asymmetry pumping action toward the shoulder or thrust plate, together with the single grooved thrust bearing, is sufficient to establish a constant pressure between the distal surface of the thrust plate and the facing counterplate, as well as between the groove thrust plate and the facing shoulder surface.
摘要翻译：典型的动态轴承设计包括安装在轴的端部或附近的环形或圆形推力板，轴与环绕套筒一起定义轴颈轴承，通过仅在两个表面之一上提供凹槽，面对轴之间的间隙和袖子。在由轴支撑的环形止推板上，保持推力板的下表面和套筒的相对表面之间限定的传统向上推力轴承; 但是推力板的表面上没有凹槽远离轴和面对的对板表面。此外，轴颈轴承被限定为具有不对称性，使得沿着轴的表面朝推力板的偏压力建立。轴颈凹槽不对称泵送作用朝向肩部或推力板与单槽推力轴承的组合足以在推力板的远端表面和面向对置板之间以及在凹槽之间建立恒定的压力推力板和面对的肩部表面。

10. 发明授权

US08157447B2 Groove configuration for a fluid dynamic bearing 有权
标题翻译：流体动力轴承的槽配置
公开(公告)号：US08157447B2
公开(公告)日：2012-04-17
申请号：US12101992
申请日：2008-04-13
申请人： Anthony J. Aiello
发明人： Anthony J. Aiello
IPC分类号： F16C32/06
CPC分类号： F16C33/1065 , F16C17/026 , F16C17/045 , F16C17/107 , F16C33/107
摘要： A groove configuration that improves angular stiffness in a fluid dynamic bearing is provided. A primary groove and a secondary groove are formed on a journal bearing or thrust bearing surface. The secondary groove apex induces a heightened pressure response at a localized area to counteract angular displacement. The primary groove extends a greater circumferential distance about the bearing surface as compared to the secondary groove. The secondary groove apex is also situated closer to an axial end of the journal bearing, or closer to an outer diameter of the thrust bearing, as compared to the primary groove apex. Bearing wear is prevented or minimized under gyroscopic loading. The improved angular stiffness may result in the heads of a storage device being accurately aligned with disc storage tracks. Discs may thus be designed with increased track densities, allowing for smaller discs and increased storage capacity of discs.
摘要翻译：提供了改善流体动力轴承中的角度刚度的凹槽构造。在轴颈轴承或止推轴承表面上形成有主槽和副槽。二次槽顶点在局部区域处引起增加的压力响应以抵消角位移。与第二槽相比，主槽相对于支承表面延伸更大的周向距离。与主槽顶点相比，次槽顶点也位于更靠近轴颈轴承的轴向端部，或者更靠近推力轴承的外径。在陀螺加载下防止或最小化轴承磨损。改善的角度刚度可能导致存储设备的头部与光盘存储轨迹精确对准。因此，盘可以设计成具有增加的轨道密度，允许较小的盘和增加盘的存储容量。

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