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    • 4. 发明授权
    • Control system for bearingless motor-generator
    • 无轴承电机发电机控制系统
    • US07456537B1
    • 2008-11-25
    • US11304359
    • 2005-12-15
    • Peter E. KascakRalph H. JansenTimothy P. Dever
    • Peter E. KascakRalph H. JansenTimothy P. Dever
    • H02K7/09H02P5/00H02P21/00
    • H02K7/09F16C32/0446F16C32/0493H02P21/0003H02P25/16
    • A control system for an electromagnetic rotary drive for bearingless motor-generators comprises a winding configuration comprising a plurality of individual pole pairs through which phase current flows, each phase current producing both a lateral force and a torque. A motor-generator comprises a stator, a rotor supported for movement relative to the stator, and a control system. The motor-generator comprises a winding configuration supported by the stator. The winding configuration comprises at least three pole pairs through which phase current flows resulting in three three-phase systems. Each phase system has a first rotor reference frame axis current that produces a levitating force with no average torque and a second rotor reference frame axis current that produces torque.
    • 用于无轴承电动发电机的电磁旋转驱动器的控制系统包括绕组配置,其包括相电流流过的多个单独的极对,每个相电流产生横向力和转矩。 电动发电机包括定子,支撑相对于定子运动的转子和控制系统。 电动发电机包括由定子支撑的绕组构造。 绕组配置包括至少三个极对,相电流通过该极对,导致三个三相系统。 每个相位系统具有产生没有平均转矩的悬浮力和产生转矩的第二转子参考框架轴电流的第一转子参考框架轴电流。
    • 6. 发明授权
    • Xenon metal halide lamp having improved thermal gradient characteristics for longer lamp life
    • 氙金属卤化物灯具有改善的热梯度特性以延长灯的寿命
    • US06400076B1
    • 2002-06-04
    • US08649887
    • 1996-05-14
    • Gary R. AllenRocco T. GiordanoGary O. JacobsKenneth S. KingTimothy P. Dever
    • Gary R. AllenRocco T. GiordanoGary O. JacobsKenneth S. KingTimothy P. Dever
    • H01J1704
    • H01J61/18H01J61/30H01J61/40H01J61/82
    • A high brightness discharge light source having improved thermal balance characteristics includes a lamp envelope having an arc chamber formed therein and a pair of electrodes extending into opposite ends of the arc chamber so as to be displaced from one another by a distance of no greater than 4 mm. A fill disposed within the arc chamber is excited to a discharge state upon the introduction of an excitation energy coupled through the pair of electrodes. The light source is operated vertically so that one of the electrodes is disposed at the top region and the other electrode is disposed at the bottom region of the arc chamber. The arc chamber is formed having a diameter dimension which is just larger than the spacing between the electrodes, and a height dimension which is approximately twice the diameter dimension. The diameter dimension is substantially uniform along the length of the arc chamber. The uniform diameter characteristic is effective so that the thermal operating properties associated with the discharge state are substantially equally distributed from the top to the bottom regions of the arc chamber thereby resulting in extending the life of this light source to approximately 6000 hours.
    • 具有改善的热平衡特性的高亮度放电光源包括具有形成在其中的电弧室的灯壳和延伸到电弧室的相对端的一对电极,以便彼此相距不大于4 mm。 当引入通过一对电极耦合的激发能量时,设置在电弧室内的填充物被激发到放电状态。 光源垂直运行,使得一个电极设置在顶部区域,另一个电极设置在电弧室的底部区域。 电弧室形成的直径尺寸刚好大于电极之间的间距,高度尺寸大约是直径尺寸的两倍。 直径尺寸沿电弧室的长度基本均匀。 均匀直径特性是有效的,使得与放电状态相关联的热操作性质从电弧室的顶部到底部区域基本均匀分布,从而导致该光源的寿命延长到大约6000小时。
    • 8. 发明授权
    • Control system for bearingless motor-generator
    • 无轴承电机发电机控制系统
    • US07667418B2
    • 2010-02-23
    • US12261707
    • 2008-10-30
    • Peter E. KascakRalph H. JansenTimothy P. Dever
    • Peter E. KascakRalph H. JansenTimothy P. Dever
    • H02P21/00
    • H02K7/09F16C32/0446F16C32/0493H02P21/0003H02P25/16
    • A control system for an electromagnetic rotary drive for bearingless motor-generators comprises a winding configuration comprising a plurality of individual pole pairs through which phase current flows, each phase current producing both a lateral force and a torque. A motor-generator comprises a stator, a rotor supported for movement relative to the stator, and a control system. The motor-generator comprises a winding configuration supported by the stator. The winding configuration comprises at least three pole pairs through which phase current flows resulting in three three-phase systems. Each phase system has a first rotor reference frame axis current that produces a levitating force with no average torque and a second rotor reference frame axis current that produces torque.
    • 用于无轴承电动发电机的电磁旋转驱动器的控制系统包括绕组配置,其包括相电流流过的多个单独的极对,每个相电流产生横向力和转矩。 电动发电机包括定子,支撑相对于定子运动的转子和控制系统。 电动发电机包括由定子支撑的绕组构造。 绕组配置包括至少三个极对,相电流通过该极对,导致三个三相系统。 每个相位系统具有产生没有平均转矩的悬浮力和产生转矩的第二转子参考框架轴电流的第一转子参考框架轴电流。