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1. 发明授权

US07626783B2 Lubricated limiter for fluid dynamic bearing motor 有权
标题翻译：流体动力轴承电机润滑限位器
公开(公告)号：US07626783B2
公开(公告)日：2009-12-01
申请号：US12119410
申请日：2008-05-12
申请人： Jeffry A. LeBlanc , Robert A. Nottingham , Troy M. Herndon , Norbert S. Parsoneault , Lynn B. Le
发明人： Jeffry A. LeBlanc , Robert A. Nottingham , Troy M. Herndon , Norbert S. Parsoneault , Lynn B. Le
IPC分类号： G11B17/02
CPC分类号： G11B19/2018 , F16C17/045 , F16C17/107 , F16C25/045 , F16C2370/12
摘要： In one example, a FDB motor having a top-cover attached, EM biased bearing system is provided. The motor includes a shaft and rotor disposed for relative rotation, and an axial limiter for restricting axial movement of the rotor with respect to the shaft, wherein the axial limiter is wet or lubricated during contact. The limiter is spatially fixed with respect to one of the shaft or the rotor and disposed with an axial end surface opposing a surface portion spatially fixed with respect to the other of the shaft or the rotor to form a gap therebetween. The gap may be filled with a fluid such as bearing lubricant, thereby providing a lubricated or wet contact surface to restrict axial movement of the shaft and rotor. Additionally, one or both surfaces may include a groove or slot to provide circulation of fluid through the gap.
摘要翻译：在一个示例中，提供具有顶盖附接的EM偏置轴承系统的FDB电动机。马达包括一个设置用于相对旋转的轴和转子，以及用于限制转子相对于轴的轴向运动的轴向限制器，其中轴向限制器在接触期间被湿润或润滑。限制器相对于轴或转子中的一个空间地固定，并且设置有与相对于轴或转子中的另一个空间固定的表面部分相对的轴向端表面，以在它们之间形成间隙。间隙可以填充有诸如轴承润滑剂的流体，从而提供润滑或湿的接触表面以限制轴和转子的轴向运动。另外，一个或两个表面可以包括槽或槽，以提供流体通过间隙的循环。

2. 发明申请

US20080273263A1 LUBRICATED LIMITER FOR FLUID DYNAMIC BEARING MOTOR 有权
标题翻译：流体动力轴承电机润滑限值
公开(公告)号：US20080273263A1
公开(公告)日：2008-11-06
申请号：US12119410
申请日：2008-05-12
申请人： Jeffry A. LEBLANC , Robert A. Nottingham , Troy M. Herndon , Norbert S. Parsoneault , Lynn B. Le
发明人： Jeffry A. LEBLANC , Robert A. Nottingham , Troy M. Herndon , Norbert S. Parsoneault , Lynn B. Le
IPC分类号： G11B17/02
CPC分类号： G11B19/2018 , F16C17/045 , F16C17/107 , F16C25/045 , F16C2370/12
摘要： In one example, a FDB motor having a top-cover attached, EM biased bearing system is provided. The motor includes a shaft and rotor disposed for relative rotation, and an axial limiter for restricting axial movement of the rotor with respect to the shaft, wherein the axial limiter is wet or lubricated during contact. The limiter is spatially fixed with respect to one of the shaft or the rotor and disposed with an axial end surface opposing a surface portion spatially fixed with respect to the other of the shaft or the rotor to form a gap therebetween. The gap may be filled with a fluid such as bearing lubricant, thereby providing a lubricated or wet contact surface to restrict axial movement of the shaft and rotor. Additionally, one or both surfaces may include a groove or slot to provide circulation of fluid through the gap.
摘要翻译：在一个示例中，提供具有顶盖附接的EM偏置轴承系统的FDB电动机。马达包括一个设置用于相对旋转的轴和转子，以及用于限制转子相对于轴的轴向运动的轴向限制器，其中轴向限制器在接触期间被湿润或润滑。限制器相对于轴或转子中的一个空间地固定，并且设置有与相对于轴或转子中的另一个空间固定的表面部分相对的轴向端表面，以在它们之间形成间隙。间隙可以填充有诸如轴承润滑剂的流体，从而提供润滑或湿的接触表面以限制轴和转子的轴向运动。另外，一个或两个表面可以包括槽或槽，以提供流体通过间隙的循环。

3. 发明授权

US07944645B2 Lubricated limiter for fluid dynamic bearing motor 有权
标题翻译：流体动力轴承电机润滑限位器
公开(公告)号：US07944645B2
公开(公告)日：2011-05-17
申请号：US12615992
申请日：2009-11-10
申请人： Jeffry A. LeBlanc , Robert A. Nottingham , Troy M. Herndon , Norbert S. Parsoneault , Lynn B. Le
发明人： Jeffry A. LeBlanc , Robert A. Nottingham , Troy M. Herndon , Norbert S. Parsoneault , Lynn B. Le
IPC分类号： G11B17/02
CPC分类号： G11B19/2018 , F16C17/045 , F16C17/107 , F16C25/045 , F16C2370/12
摘要： A component for restricting relative movement of a rotor and a shaft is disclosed. A motor may include a shaft and a rotor, where the rotor is disposed for relative rotation with respect to said shaft. A component is operable to restrict relative movement of the rotor and the shaft, where the component includes a first surface operable to receive a fluid.
摘要翻译：公开了一种用于限制转子和轴的相对运动的部件。马达可以包括轴和转子，其中转子被设置成相对于所述轴相对旋转。组件可操作以限制转子和轴的相对运动，其中部件包括可操作以接收流体的第一表面。

4. 发明授权

US07372663B2 Lubricated limiter for fluid dynamic bearing motor 有权
标题翻译：流体动力轴承电机润滑限位器
公开(公告)号：US07372663B2
公开(公告)日：2008-05-13
申请号：US11084610
申请日：2005-03-18
申请人： Jeffry A. Leblanc , Robert A. Nottingham , Troy M. Herndon , Norbert S. Parsoneault , Lynn B. Le
发明人： Jeffry A. Leblanc , Robert A. Nottingham , Troy M. Herndon , Norbert S. Parsoneault , Lynn B. Le
IPC分类号： G11B17/02
CPC分类号： G11B19/2018 , F16C17/045 , F16C17/107 , F16C25/045 , F16C2370/12
摘要： In one example, a FDB motor having a top-cover attached, EM biased bearing system is provided. The motor includes a shaft and rotor disposed for relative rotation, and an axial limiter for restricting axial movement of the rotor with respect to the shaft, wherein the axial limiter is wet or lubricated during contact. The limiter is spatially fixed with respect to one of the shaft or the rotor and disposed with an axial end surface opposing a surface portion spatially fixed with respect to the other of the shaft or the rotor to form a gap therebetween. The gap may be filled with a fluid such as bearing lubricant, thereby providing a lubricated or wet contact surface to restrict axial movement of the shaft and rotor. Additionally, one or both surfaces may include a groove or slot to provide circulation of fluid through the gap.
摘要翻译：在一个示例中，提供具有顶盖附接的EM偏置轴承系统的FDB电动机。马达包括一个设置用于相对旋转的轴和转子，以及用于限制转子相对于轴的轴向运动的轴向限制器，其中轴向限制器在接触期间被湿润或润滑。限制器相对于轴或转子中的一个空间地固定，并且设置有与相对于轴或转子中的另一个空间固定的表面部分相对的轴向端表面，以在它们之间形成间隙。间隙可以填充有诸如轴承润滑剂的流体，从而提供润滑或湿的接触表面以限制轴和转子的轴向运动。另外，一个或两个表面可以包括槽或槽，以提供流体通过间隙的循环。

5. 发明申请

US20100053807A1 LUBRICATED LIMITER FOR FLUID DYNAMIC BEARING MOTOR 有权
标题翻译：流体动力轴承电机润滑限值
公开(公告)号：US20100053807A1
公开(公告)日：2010-03-04
申请号：US12615992
申请日：2009-11-10
申请人： Jeffry A. LeBlanc , Robert A. Nottingham , Troy M. Herndon , Norbert S. Parsoneault , Lynn B. Le
发明人： Jeffry A. LeBlanc , Robert A. Nottingham , Troy M. Herndon , Norbert S. Parsoneault , Lynn B. Le
IPC分类号： G11B17/02
CPC分类号： G11B19/2018 , F16C17/045 , F16C17/107 , F16C25/045 , F16C2370/12
摘要： A component for restricting relative movement of a rotor and a shaft is disclosed. A motor may include a shaft and a rotor, where the rotor is disposed for relative rotation with respect to said shaft. A component is operable to restrict relative movement of the rotor and the shaft, where the component includes a first surface operable to receive a fluid.
摘要翻译：公开了一种用于限制转子和轴的相对运动的部件。马达可以包括轴和转子，其中转子被设置成相对于所述轴相对旋转。组件可操作以限制转子和轴的相对运动，其中部件包括可操作以接收流体的第一表面。

6. 发明申请

US20100142869A1 Fluid Pumping Capillary Seal For A Fluid Dynamic Bearing 有权
标题翻译：流体动力轴承的流体泵送毛细管密封
公开(公告)号：US20100142869A1
公开(公告)日：2010-06-10
申请号：US12328710
申请日：2008-12-04
申请人： Alan L. Grantz , Lynn B. Le , Klaus Kloeppel
发明人： Alan L. Grantz , Lynn B. Le , Klaus Kloeppel
IPC分类号： F16C32/06
CPC分类号： F16C32/064 , F16C33/745 , F16C41/008 , F16C2370/12
摘要： An apparatus and method are provided for a robust and shock resistant fluid dynamic bearing. A fluid sealing system with fluid pumping and capillary features provides increased reliability and performance for small form factor disc drive memory systems. Concerns of motor jog are addressed, jog being the rapid and repeated opening and closing of spaces between relatively rotatable components that can dispel oil from, or draw air into, these spaces. The fluid pumping capillary sealing system includes a fluid pumping groove with a rib portion and a slot portion for pumping fluid. The fluid pumping capillary sealing system also includes a capillary seal. In an aspect, a sweeping rib sweeps fluid toward the bearing. A truncated rib is situated adjacent to the sweeping rib, the truncated rib extending a shorter radial distance as compared to the sweeping rib and forming a plenum region.
摘要翻译：提供了一种用于坚固耐冲击的流体动力轴承的装置和方法。具有流体泵送和毛细管特性的流体密封系统为小尺寸盘驱动器存储器系统提供了更高的可靠性和性能。解决了电机点动的问题，慢跑是能够将油从其中排出或将空气吸入这些空间的相对可旋转部件之间的空间的快速且重复的打开和关闭。流体泵送毛细管密封系统包括具有肋部分的流体泵送槽和用于泵送流体的槽部分。流体泵送毛细管密封系统还包括毛细管密封。在一方面，清扫肋将流体朝向轴承扫过。截头肋位于扫掠肋附近，与扫掠肋相比，截形肋延伸较短的径向距离并形成增压区。

7. 发明授权

US09644675B2 Folded fluid channel for a fluid dynamic bearing 有权
公开(公告)号：US09644675B2
公开(公告)日：2017-05-09
申请号：US12117619
申请日：2008-05-08
申请人： Lynn B. Le , Alan L. Grantz
发明人： Lynn B. Le , Alan L. Grantz
IPC分类号： F16C32/06 , F16C33/10 , F16C41/00 , F16C17/10
CPC分类号： F16C32/0633 , F16C17/105 , F16C17/107 , F16C33/107 , F16C33/1085 , F16C41/008 , F16C2370/12
摘要： A system and method are provided for sealing a fluid dynamic bearing motor. A first and a second folded fluid channel are shaped for maximizing bearing axial span and establishing angular stiffness, to resist gyroscopic rocking of the facing bearing surfaces. The first folded fluid channel is limited to occupying at least a portion of the same axial space as the bearing. A first and a second fluid sealing system are connected to opposite axial ends of the bearing. The first fluid sealing system forms an active pumping seal to pump fluid during motor rotation. In an aspect, a top cover attached shaft, and a single thrust surface are employed, allowing for a rigid motor structure and power reduction in applications including high rotational speed disc drives. Also, by employing a rigid shaft design, significantly lower amplitude radial vibration responses are exhibited at higher frequencies than prior art motor designs.

8. 发明授权

US08618706B2 Fluid pumping capillary seal for a fluid dynamic bearing 有权
标题翻译：用于流体动力轴承的流体泵送毛细管密封
公开(公告)号：US08618706B2
公开(公告)日：2013-12-31
申请号：US12328710
申请日：2008-12-04
申请人： Alan L. Grantz , Lynn B. Le , Klaus Kloeppel
发明人： Alan L. Grantz , Lynn B. Le , Klaus Kloeppel
IPC分类号： H02K5/124
CPC分类号： F16C32/064 , F16C33/745 , F16C41/008 , F16C2370/12
摘要： A motor includes a rotatable component rotatable relative to a stationary component, a fluid operable to flow between the rotatable and stationary component, and a capillary sealing component. The capillary sealing component provides a capillary seal and includes at least one tapered slot configured to pump the fluid between the rotatable and stationary components.
摘要翻译：马达包括可相对于静止部件旋转的可旋转部件，可操作以在可旋转和静止部件之间流动的流体和毛细管密封部件。毛细管密封部件提供毛细管密封件，并且包括至少一个锥形狭槽，其构造成在可旋转部件和固定部件之间泵送流体。

9. 发明申请

US20090279818A1 FOLDED FLUID CHANNEL FOR A FLUID DYNAMIC BEARING MOTOR 有权
标题翻译：用于流体动力轴承电机的折叠流体通道
公开(公告)号：US20090279818A1
公开(公告)日：2009-11-12
申请号：US12117619
申请日：2008-05-08
申请人： Lynn B. Le , Alan L. Grantz
发明人： Lynn B. Le , Alan L. Grantz
IPC分类号： F16C32/06 , F16N25/04
CPC分类号： F16C32/0633 , F16C17/105 , F16C17/107 , F16C33/107 , F16C33/1085 , F16C41/008 , F16C2370/12
摘要： A system and method are provided for sealing a fluid dynamic bearing motor. A first and a second folded fluid channel are shaped for maximizing bearing axial span and establishing angular stiffness, to resist gyroscopic rocking of the facing bearing surfaces. The first folded fluid channel is limited to occupying at least a portion of the same axial space as the bearing. A first and a second fluid sealing system are connected to opposite axial ends of the bearing. The first fluid sealing system forms an active pumping seal to pump fluid during motor rotation. In an aspect, a top cover attached shaft, and a single thrust surface are employed, allowing for a rigid motor structure and power reduction in applications including high rotational speed disc drives. Also, by employing a rigid shaft design, significantly lower amplitude radial vibration responses are exhibited at higher frequencies than prior art motor designs.
摘要翻译：提供一种用于密封流体动力轴承马达的系统和方法。第一和第二折叠流体通道被成形为最大化轴承轴向跨度并且建立角度刚度，以抵抗面对轴承表面的陀螺摇摆。第一折叠流体通道被限制为占据与轴承相同轴向空间的至少一部分。第一和第二流体密封系统连接到轴承的相对的轴向端部。第一流体密封系统在电机旋转期间形成主动泵送密封件以泵送流体。在一方面，采用顶盖连接轴和单个推力表面，允许在包括高转速盘驱动器的应用中具有刚性的电机结构和功率降低。此外，通过采用刚性轴设计，在比现有技术的电动机设计更高的频率下显示出显着较低振幅的径向振动响应。

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