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    High speed internal permanent magnet machine and method of manufacturing the same
    1.
    发明授权
    High speed internal permanent magnet machine and method of manufacturing the same 有权
    高速内置永磁电机及其制造方法

    公开(公告)号：US08018110B2

    公开(公告)日：2011-09-13

    申请号：US12432885

    申请日：2009-04-30

    申请人： James Pellegrino Alexander ,  Ayman Mohamed Fawzi EL-Refaie ,  Murtuza Lokhandwalla ,  Manoj Ramprasad Shah ,  Jeremy Daniel VanDam

    发明人： James Pellegrino Alexander ,  Ayman Mohamed Fawzi EL-Refaie ,  Murtuza Lokhandwalla ,  Manoj Ramprasad Shah ,  Jeremy Daniel VanDam

    IPC分类号： H02K21/12 ,  H02K1/06

    CPC分类号： H02K1/2773 ,  H02K1/32 ,  H02K7/1838 ,  Y10T29/49012

    摘要： An internal permanent magnet (IPM) machine is provided. The IPM machine includes a stator assembly and a stator core. The stator core also includes multiple stator teeth. The stator assembly is further configured with stator windings to generate a magnetic field when excited with alternating currents and extends along a longitudinal axis with an inner surface defining a cavity. The IPM machine also includes a rotor assembly and a rotor core. The rotor core is disposed inside the cavity and configured to rotate about the longitudinal axis. The rotor assembly further includes a shaft. The shaft further includes multiple protrusions alternately arranged relative to multiple bottom structures provided on the shaft. The rotor assembly also includes multiple stacks of laminations disposed on the protrusions and dovetailed circumferentially around the shaft. The rotor assembly further includes multiple permanent magnets for generating a magnetic field, which interacts with the stator magnetic field to produce torque. The permanent magnets are disposed between the stacks. The rotor assembly also includes multiple bottom wedges disposed on the bottom structures of the shaft and configured to hold the multiple stacks and the multiple permanent magnets.

    摘要翻译： 提供内置永磁（IPM）机器。 IPM机器包括定子组件和定子芯。 定子芯还包括多个定子齿。 定子组件进一步配置有定子绕组以在用交流电流激发时产生磁场，并且沿着纵向轴线延伸，并且内表面限定空腔。 IPM机器还包括转子组件和转子芯。 转子芯设置在空腔内并且构造成围绕纵向轴线旋转。 转子组件还包括轴。 轴还包括相对于设置在轴上的多个底部结构交替布置的多个突起。 转子组件还包括设置在突起上的多个叠片堆叠，并且围绕轴线周向燕尾。 转子组件还包括用于产生磁场的多个永磁体，其与定子磁场相互作用以产生转矩。 永磁体设置在堆叠之间。 转子组件还包括设置在轴的底部结构上并被构造成保持多个堆叠和多个永磁体的多个底部楔块。

    Dovetail spoke internal permanent magnet machine
    2.
    发明授权
    Dovetail spoke internal permanent magnet machine 有权
    蜗杆式内置永磁机

    公开(公告)号：US08004140B2

    公开(公告)日：2011-08-23

    申请号：US12432894

    申请日：2009-04-30

    申请人： James Pellegrino Alexander ,  Ayman Mohamed Fawzi EL-Refaie ,  Murtuza Lokhandwalla ,  Manoj Ramprasad Shah ,  Jeremy Daniel VanDam

    发明人： James Pellegrino Alexander ,  Ayman Mohamed Fawzi EL-Refaie ,  Murtuza Lokhandwalla ,  Manoj Ramprasad Shah ,  Jeremy Daniel VanDam

    IPC分类号： H02K21/12 ,  H02K1/06

    CPC分类号： H02K1/2773 ,  H02K7/1838 ,  Y10T29/49012

    摘要： An internal permanent magnet (IPM) machine is provided. The IPM machine includes a stator assembly and a stator core. The stator core also includes multiple stator teeth. The stator assembly is further configured with stator windings to generate a stator magnetic field when excited with alternating currents and extends along a longitudinal axis with an inner surface defining a cavity. The IPM machine also includes a rotor assembly and a rotor core. The rotor core is disposed inside the cavity and configured to rotate about the longitudinal axis. The rotor assembly further includes a shaft. The shaft further includes multiple protrusions alternately arranged relative to multiple bottom structures provided on the shaft. The rotor assembly also includes multiple stacks of laminations disposed on the protrusions and dovetailed circumferentially around the shaft. The rotor assembly further includes multiple pair of permanent magnets for generating a magnetic field, which magnetic field interacts with the stator magnetic field to produce a torque. The multiple pair of permanent magnets are disposed between the stacks. The rotor assembly also includes multiple middle wedges mounted between each pair of the multiple permanent magnets.

    摘要翻译： 提供内置永磁（IPM）机器。 IPM机器包括定子组件和定子芯。 定子芯还包括多个定子齿。 定子组件进一步配置有定子绕组，以在用交流电流激发时产生定子磁场，并且沿着纵向轴线延伸，内表面限定空腔。 IPM机器还包括转子组件和转子芯。 转子芯设置在空腔内并且构造成围绕纵向轴线旋转。 转子组件还包括轴。 轴还包括相对于设置在轴上的多个底部结构交替布置的多个突起。 转子组件还包括设置在突起上的多个叠片堆叠，并且围绕轴线周向燕尾。 转子组件还包括用于产生磁场的多对永磁体，该磁场与定子磁场相互作用以产生转矩。 多对永久磁铁配置在堆叠之间。 转子组件还包括安装在每对多个永磁体之间的多个中间楔块。

    Sealing device and method for turbomachinery
    7.
    发明授权
    Sealing device and method for turbomachinery 有权
    涡轮机械密封装置及方法

    公开(公告)号：US07435049B2

    公开(公告)日：2008-10-14

    申请号：US10813102

    申请日：2004-03-30

    申请人： Farshad Ghasripoor ,  Murtuza Lokhandwalla ,  Raymond Edward Chupp ,  Nitin Bhate

    发明人： Farshad Ghasripoor ,  Murtuza Lokhandwalla ,  Raymond Edward Chupp ,  Nitin Bhate

    IPC分类号： F01D11/06

    CPC分类号： F01D11/14 ,  F01D5/225 ,  Y02T50/673

    摘要： A compliant seal for use between rotating blades and a static shroud surrounding the rotating blades in a steam or gas turbine is disclosed. The seal includes a tip surface, substantially resistant to wear due to rubbing by the tip of the rotating blades, and an elastic biasing member, comprising a biasing element. The wear-resistant surface is thus biased against the tips of the rotating blades to seal a gas path between the rotating blades and the static shroud.

    摘要翻译： 公开了一种在旋转叶片和围绕蒸汽或燃气轮机中的旋转叶片的静态护罩之间使用的柔性密封件。 密封件包括基本上抵抗由旋转刀片的尖端摩擦而导致的磨损的尖端表面，以及包括偏置元件的弹性偏置构件。 因此耐磨表面被偏压抵靠旋转叶片的尖端以密封旋转叶片和静态护罩之间的气体路径。

    Vacuum seal for high speed generator
    8.
    发明申请
    Vacuum seal for high speed generator 审中-公开
    高速发电机真空密封

    公开(公告)号：US20080136114A1

    公开(公告)日：2008-06-12

    申请号：US11635748

    申请日：2006-12-07

    申请人： Murtuza Lokhandwalla ,  Kirubaharan Sivasubramaniam ,  Evangelos Trifon Laskaris

    发明人： Murtuza Lokhandwalla ,  Kirubaharan Sivasubramaniam ,  Evangelos Trifon Laskaris

    IPC分类号： F16J15/36

    CPC分类号： F16J15/002 ,  F16J15/44 ,  H02K5/124

    摘要： The present invention solves the aforementioned problems by providing a vacuum seal assembly for a high power generator stub shaft which includes a seal stator encircling the stub shaft and a plurality of oil seals disposed on an inner diameter of the seal stator and encircling the stub shaft. Adjacent oil seals form a plurality of seal cavities between the stub shaft and the seal stator, and define gaps between each oil seal and the stub shaft for receiving a lubricant film. At least one seal feed conduit extending through the seal stator into the plurality of seal cavities to provide lubricant to the seal assembly.

    摘要翻译： 本发明通过提供一种用于大功率发生器短轴的真空密封组件来解决上述问题，其包括围绕短轴的密封定子和设置在密封定子的内径上且环绕短轴的多个油封。 邻近的油封在短轴和密封定子之间形成多个密封空腔，并且在每个油封与短轴之间形成间隙，用于容纳润滑剂膜。 至少一个密封进给导管，其延伸穿过所述密封定子到所述多个密封腔中，以向所述密封组件提供润滑剂。

    Multi-focus ultrasound system and method
    10.
    发明授权
    Multi-focus ultrasound system and method 有权
    多焦点超声系统及方法

    公开(公告)号：US08409102B2

    公开(公告)日：2013-04-02

    申请号：US12873026

    申请日：2010-08-31

    申请人： Weston Blaine Griffin ,  Douglas Glenn Wildes ,  David Martin Mills ,  Murtuza Lokhandwalla ,  Christopher Robert Hazard ,  Warren Lee ,  Reinhold Bruestle

    发明人： Weston Blaine Griffin ,  Douglas Glenn Wildes ,  David Martin Mills ,  Murtuza Lokhandwalla ,  Christopher Robert Hazard ,  Warren Lee ,  Reinhold Bruestle

    IPC分类号： A61B8/14

    CPC分类号： A61B8/12 ,  A61B8/4461 ,  A61N7/02 ,  A61N2007/0091

    摘要： A multi-focus probe that includes a motor communicatively coupled with a lead screw and configured to turn the lead screw about a lengthwise axis of the lead screw, wherein the lead screw includes a length having threads. The probe also includes a lead-screw nut positioned about the lead screw such that the lead-screw nut engages the threads and such that the lead-screw nut and the lead screw can move relative to one another via the threads, a transducer configured to move vertically with the lead screw, and an enclosure surrounding the transducer, wherein the enclosure includes a probe face configured to hold fluid and engage a wave emission target such that waves from the transducer can enter the target. Further, the probe includes a capture feature capable of engaging the lead-screw nut such that the lead-screw nut is vertically fixed relative to the probe face and such that the lead screw moves away from the probe face when rotating within the lead-screw nut in a first direction and moves toward the probe face when rotating within the lead-screw nut in a second direction opposite to the first direction while the lead-screw nut is engaged by the capture feature.

    摘要翻译： 一种多焦点探针，其包括与导螺杆通信地联接并且构造成围绕导螺杆的纵向轴线转动导螺杆的电动机，其中所述导螺杆包括具有螺纹的长度。 该探头还包括一个围绕导螺杆定位的导螺杆螺母，使得导螺杆螺母与螺纹接合，使得导螺杆螺母和导螺杆可以经由螺纹相对于彼此移动，传感器配置成 使用导螺杆和围绕换能器的外壳垂直移动，其中外壳包括被配置为保持流体并接合波发射目标的探针面，使得来自换能器的波可以进入目标。 此外，探针包括捕获特征，其能够接合丝杠螺母，使得丝杠螺母相对于探针面垂直固定，并且当螺杆内的旋转时，导螺杆远离探针面移动 螺母沿第一方向旋转，并且当螺纹螺母与捕获特征接合时，在与第一方向相反的第二方向上在丝杠螺母内旋转时朝向探针面移动。