MAGNETIC CONTROL CIRCUIT SEPARATION SLIT
    21.
    发明申请
    MAGNETIC CONTROL CIRCUIT SEPARATION SLIT 有权
    磁控电路分离槽

    公开(公告)号:US20070267931A1

    公开(公告)日:2007-11-22

    申请号:US11419238

    申请日:2006-05-19

    CPC classification number: H02K21/046 H02K21/22

    Abstract: The electric alternator/motor comprises a stator having at least two non-overlapping sectors. A cross-talk reduction feature, such as a peripheral slit, is provided between each sector of the stator for impeding magnetic flux crossing between the sectors.

    Abstract translation: 电动交流发电机/电动机包括具有至少两个非重叠扇形的定子。 在定子的每个扇区之间提供串扰减少特征,例如外围狭缝,以阻止扇区之间的磁通交叉。

    Voltage-limited electric machine
    22.
    发明授权
    Voltage-limited electric machine 有权
    电压限制电机

    公开(公告)号:US07288923B1

    公开(公告)日:2007-10-30

    申请号:US11379620

    申请日:2006-04-21

    CPC classification number: H02K21/046

    Abstract: An electric alternator having a rotor, stator and at least one winding in the stator adapted to conduct a current, the machine also having and first and second magnetic circuits around different portions of the winding which may be configured relative to one another to control generated output voltage of the winding.

    Abstract translation: 一种具有转子,定子和定子中的至少一个绕组的电动交流发电机,其适于传导电流,所述机器还具有围绕所述绕组的不同部分的第一和第二磁路,所述第一和第二磁路可以相对于彼此配置以控制所产生的输出 绕组电压。

    Sensorless control in a permanent magnet machine
    23.
    发明授权
    Sensorless control in a permanent magnet machine 有权
    永磁机无传感器控制

    公开(公告)号:US07288910B2

    公开(公告)日:2007-10-30

    申请号:US10724148

    申请日:2003-12-01

    CPC classification number: H02P6/182 H02K29/12 H02P6/22

    Abstract: An apparatus and method for providing improved sensorless control of permanent magnet motors is described. Induced electricity from at least one winding set is used to determine rotor position and provide feedback to a commutation circuit driving at least another winding set isolated from the first.

    Abstract translation: 描述了一种用于提供永磁电动机的改进的无传感器控制的装置和方法。 使用来自至少一个绕组的感应电力来确定转子位置,并向至少驱动与第一组隔离的另一绕组组的换向电路提供反馈。

    Electromagnetic actuator
    25.
    发明授权
    Electromagnetic actuator 有权
    电磁执行器

    公开(公告)号:US07227440B2

    公开(公告)日:2007-06-05

    申请号:US11070265

    申请日:2005-03-03

    CPC classification number: H01L41/12 H02N2/023

    Abstract: An electromagnetic actuator comprises an driven member and magnetostrictive elements which change the dimensions thereof when activated or deactivated by selectively applying magnetic flux therein. The driven member is moved in a selected direction when the appropriate elements are activated and deactivated in a controlled manner.

    Abstract translation: 电磁致动器包括从动构件和磁致伸缩元件,其通过在其中选择性地施加磁通量来激活或去激活时改变其尺寸。 当适当的元件以受控的方式被激活和去激活时,被驱动构件在所选择的方向上移动。

    Multi pumping chamber magnetostrictive pump

    公开(公告)号:US07040873B2

    公开(公告)日:2006-05-09

    申请号:US11056268

    申请日:2005-02-14

    CPC classification number: F04B17/003 F04B17/00 F04B17/03 F04B17/04

    Abstract: A positive displacement pump includes a magnetostrictive actuator. A single actuator drives multiple pumping chambers. The pump may include two pumping chambers driven in phase by the linear expansion of the actuator at both its ends. The pump may include a third pumping cavity, driven by the transverse expansion and contraction of the actuator, out of phase with either cavity driven by the lengthwise extension of the actuator. A pump assembly having multiple pumps each including a magnetostrictive element is also disclosed.

    Current limiting means for a generator

    公开(公告)号:US06920023B2

    公开(公告)日:2005-07-19

    申请号:US10393462

    申请日:2003-03-21

    CPC classification number: H02K1/165 H02K11/00

    Abstract: The invention provides means of limiting maximum current conducted through windings of an electric machine having a rotor and a stator. By encouraging an appropriate leakage flux around a winding, a leak impedance can be achieved which may be used, according to the invention, to limit the maximum current in the winding as a matter of machine design.

    Apparatus for measuring and recording data from boreholes
    30.
    发明授权
    Apparatus for measuring and recording data from boreholes 失效
    用于测量和记录钻孔数据的装置

    公开(公告)号:US06550321B1

    公开(公告)日:2003-04-22

    申请号:US09679598

    申请日:2000-10-05

    CPC classification number: E21B47/011 E21B17/028 E21B47/00 E21B47/12

    Abstract: For collecting data from a water well, down-hole sensors are housed in modules. The modules are arranged to be screwed together in-line to form a vertical string. Mechanically, the modules are secured to each other only by the screw connection. Data is transmitted to the surface on a 2-wire cable, there being no other electrical connection between the modules and the surface. The modules are connected in multi-drop configuration to the 2-wire cable. Data is transmitted using time-division multiplexing.

    Abstract translation: 为了从水井采集数据,井下传感器安装在模块中。 这些模块被布置为在线地螺纹连接以形成垂直的线。 在机械上,模块仅通过螺钉连接彼此固定。 数据以2线电缆传输到表面,模块和表面之间没有其他电气连接。 模块以多点配置连接到2线电缆。 使用时分多路传输数据。

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