公开(公告)号：US06803693B2

公开(公告)日：2004-10-12

申请号：US10063327

申请日：2002-04-11

申请人： Manoj R. Shah ,  Sameh R. Salem ,  Gerald Burt Kliman ,  Luana Emiliana Iorio ,  Judson Sloan Marte ,  Russell Walthers

发明人： Manoj R. Shah ,  Sameh R. Salem ,  Gerald Burt Kliman ,  Luana Emiliana Iorio ,  Judson Sloan Marte ,  Russell Walthers

IPC分类号： H02K116

CPC分类号： H02K1/02 ,  H02K15/0006

摘要： An electrical machine stator core and method for reducing electromagnetic losses and the consequent heating of the core. The stator core makes use of laminations made from an iron-aluminum alloy at the core-ends of the core, while laminations between the core-ends are formed of a ferromagnetic alloy different from the iron-aluminum alloy. Use of iron-aluminum alloy laminations at the core-ends makes possible a relatively simple technique for generator uprate, by removing laminations located at the core-ends of the stator core, and then installing replacement laminations formed of the iron-aluminum alloy at the core-end, again with the result that the laminations located at the core-ends are formed of an Fe—Al alloy that is different from the alloy of the laminations between the core ends.

摘要翻译： 一种用于减少电磁损耗和随之而来的芯体加热的电机定子铁心和方法。 定子铁芯利用铁芯铁心铝合金制成的叠片，芯铁心之间的叠片由不同于铁铝合金的铁磁合金形成。 在铁芯端部使用铁铝合金叠片可以通过去除位于定子铁心的芯端的叠片，然后在铁素体合金的铁芯 - 铝合金形成的更换叠层 芯端，结果是位于芯端的叠片由Fe-Al合金形成，其不同于芯端之间的叠片的合金。

公开(公告)号：US06720699B1

公开(公告)日：2004-04-13

申请号：US10279908

申请日：2002-10-25

申请人： Manoj R. Shah ,  Sameh R. Salem

发明人： Manoj R. Shah ,  Sameh R. Salem

IPC分类号： H02K100

CPC分类号： H02K1/16 ,  H02K11/01 ,  H02K11/40

摘要： A power generator that operates at a reduced keybar voltages and currents, flange currents, and keybar voltage differentials includes a keybar shield that reduces the amount of magnetic flux coupling into a keybar of multiple keybars during operation of the generator. By reducing the amount of coupled flux, the keybar shield reduces a keybar voltage and a keybar current in a keybar, reduces keybar current flowing into a flange, and reduces a voltage differential between voltages induced by the flux in the multiple keybars.

摘要翻译： 在减少的键盘电压和电流，法兰电流和键槽电压差下工作的发电机包括一个键槽屏蔽，其减少了在发电机运行期间耦合到多个键盘的键槽中的磁通量。 通过减少耦合磁通量，键盘屏蔽减少了键槽中的键槽电压和键槽电流，减少了流入法兰的键槽电流，并降低了由多个键盘中的磁通引起的电压之间的电压差。

公开(公告)号：US5030871A

公开(公告)日：1991-07-09

申请号：US522037

申请日：1990-05-11

申请人： Manoj R. Shah ,  True T. Shih

发明人： Manoj R. Shah ,  True T. Shih

IPC分类号： H02K1/26 ,  H02K1/32 ,  H02K3/24 ,  H02K3/487 ,  H02K5/18

CPC分类号： H02K3/24 ,  H02K1/32 ,  H02K3/487

摘要： A solid rotor for a dynamoelectric machine including field conductors and ventilation passages in axial slots is provided with low resistivity thermally conductive axial winged inserts which seal and overlie the slots to form a low resistivity cylinder about the rotor to minimize power losses and associated heating due to harmonic induced eddy currents, enhance the conductive cooling of the rotor, and increase efficiency.

公开(公告)号：US4914335A

公开(公告)日：1990-04-03

申请号：US275486

申请日：1988-11-23

申请人： Malcolm D. Horton ,  Manoj R. Shah ,  Charles J. Czech

发明人： Malcolm D. Horton ,  Manoj R. Shah ,  Charles J. Czech

IPC分类号： H02K3/28 ,  H02K3/50

CPC分类号： H02K3/50 ,  H02K3/28 ,  H02K2203/09

摘要： An armature of an AC generator includes a plurality of polyphase windings. Each of the polyphase windings is a wave winding passing about substantially the entire circumference of the armature. In one embodiment, four three-phase windings are wave wound in the armature. External connection to each of the phases and the neutral of each three-phase winding is made through four connector quadrants disposed in four parallel planes. Connection to the remaining nine phases and three neutrals are made through further connector quadrants sharing respective planes with the first-mentioned connector quadrants.

公开(公告)号：US06278217B1

公开(公告)日：2001-08-21

申请号：US09457480

申请日：1999-12-09

申请人： Gerald B. Kliman ,  Manoj R. Shah

发明人： Gerald B. Kliman ,  Manoj R. Shah

IPC分类号： H02K112

CPC分类号： H02K3/48 ,  H02K15/085 ,  H02K2203/15 ,  Y10T29/49009 ,  Y10T29/49073

摘要： A stator for a high voltage generator has cable windings that are radially inserted into the stator slots. The stator is assembled as the cable windings are laid into the stator slots. The stator slots are left wide open to allow the cable windings and separator bars to be inserted in the slot as the stator is assembled. The open slots have sidewalls that are defined by stator teeth, which extend radially out from a rotor jig in the stator. As each coil section is laid in a slot, a separator bar is inserted over the coil so that another coil section can be laid into the stator. The coils are stacked in a slot and sandwiched between separator bars also in the slot. The separator bar is keyed to the sidewalls of the teeth to provide structural support for the cable windings.

摘要翻译： 用于高压发生器的定子具有径向插入定子槽中的电缆绕组。 当电缆绕组放置在定子槽中时，定子被组装。 定子槽宽敞开，以便在组装定子时，将电缆绕组和隔板插入槽中。 开口槽具有由定子齿限定的侧壁，其从定子中的转子夹具径向延伸。 当每个线圈段被放置在槽中时，隔板被插入到线圈上，使得另一个线圈段可以放置在定子中。 线圈堆叠在槽中并夹在狭槽中的分隔杆之间。 分隔杆被锁定到齿的侧壁，以为电缆绕组提供结构支撑。

公开(公告)号：US4843271A

公开(公告)日：1989-06-27

申请号：US130866

申请日：1987-12-10

申请人： Manoj R. Shah

发明人： Manoj R. Shah

IPC分类号： H02K1/06 ,  H02K1/26 ,  H02K3/16

CPC分类号： H02K3/16

摘要： A rotor of a dynamoelectric machine includes a coating of a high-conductivity metal covering a substantial portion of the surface thereof. The high-conductivity metal reduces resistive heating produced by eddy currents from high-frequency harmonics of an AC power source. In one embodiment of the invention, surfaces of dovetail wedges retaining energizing conductors in logitudinal slots are coated with a copper coating. The pole regions of the rotor include undercut slots to retain chamfered wedges of magnetic material coated with a high-conductivity metal. Retaining rings at opposed ends of the rotor may also be coated with a high-conductivity metal.

公开(公告)号：US06389679B1

公开(公告)日：2002-05-21

申请号：US09882176

申请日：2001-06-18

申请人： Gerald B. Kliman ,  Manoj R. Shah

发明人： Gerald B. Kliman ,  Manoj R. Shah

IPC分类号： H02K1502

CPC分类号： H02K3/48 ,  H02K15/085 ,  H02K2203/15 ,  Y10T29/49009 ,  Y10T29/49073

摘要： A stator for a high voltage generator has cable windings that are radially inserted into the stator slots. The stator is assembled as the cable windings are laid into the stator slots. The stator slots are left wide open to allow the cable windings and separator bars to be inserted in the slot as the stator is assembled. The open slots have sidewalls that are defined by stator teeth, which extend radially out from a rotor jig in the stator. As each coil section is laid in a slot, a separator bar is inserted over the coil so that another coil section can be laid into the stator. The coils are stacked in a slot and sandwiched between separator bars also in the slot. The separator bar is keyed to the sidewalls of the teeth to provide structural support for the cable windings.

摘要翻译： 用于高压发生器的定子具有径向插入定子槽中的电缆绕组。 当电缆绕组放置在定子槽中时，定子被组装。 定子槽宽敞开，以便在组装定子时，将电缆绕组和隔板插入槽中。 开口槽具有由定子齿限定的侧壁，其从定子中的转子夹具径向延伸。 当每个线圈段被放置在槽中时，隔板被插入到线圈上，使得另一个线圈段可以放置在定子中。 线圈堆叠在槽中并夹在狭槽中的分隔杆之间。 分隔杆被锁定到齿的侧壁，以为电缆绕组提供结构支撑。

公开(公告)号：US06268673B1

公开(公告)日：2001-07-31

申请号：US09305376

申请日：1999-05-05

申请人： Manoj R. Shah ,  Chad R. Lewandowski

发明人： Manoj R. Shah ,  Chad R. Lewandowski

IPC分类号： H02K709

CPC分类号： F16C32/0465 ,  F16C32/0459 ,  F16C32/0476 ,  F16C32/0493 ,  H02K7/09

摘要： A rotating machine (e.g., a turbine, motor or generator) is provided wherein a fixed solenoid or other coil configuration is disposed adjacent to one or both ends of the active portion of the machine rotor for producing an axially directed flux in the active portion so as to provide planar axial control at single or multiple locations for rotor balance, levitation, centering, torque and thrust action. Permanent magnets can be used to produce an axial bias magnetic field. The rotor can include magnetic disks disposed in opposed, facing relation to the coil configuration.

摘要翻译： 提供了旋转机器（例如，涡轮机，电动机或发电机），其中固定螺线管或其它线圈构造设置在机器转子的有效部分的一端或两端附近，用于在有源部分中产生轴向定向的通量， 以在单个或多个位置为转子平衡，悬浮，定心，扭矩和推力动作提供平面轴向控制。 可以使用永磁体产生轴向偏置磁场。 转子可以包括以与线圈构型相对的相对的方式设置的磁盘。

公开(公告)号：US4716328A

公开(公告)日：1987-12-29

申请号：US815611

申请日：1986-01-02

申请人： Manoj R. Shah ,  Henry G. Lenz ,  William L. Bird, Jr

发明人： Manoj R. Shah ,  Henry G. Lenz ,  William L. Bird, Jr

IPC分类号： H02K13/00 ,  H02K31/04 ,  H02K31/00

CPC分类号： H02K31/04

摘要： Active compensation in the form of a pair of trim coils and passive compensation in the form of a solenoidal-shaped magnetic shunt are disclosed for shaping the magnetic field existing in the liquid metal current collector region of an acyclic generator such as to minimize the field component normal to the stator and rotor collector surfaces and thereby substantially eliminate the generation of circulating currents in the liquid metal medium.

摘要翻译： 公开了以螺旋形磁分流器形式的一对修边线圈和无源补偿形式的有源补偿，用于对存在于非循环发生器的液态金属集流体区域中的磁场进行成形，以使场分量 垂直于定子和转子收集器表面，从而基本上消除了液态金属介质中循环电流的产生。

公开(公告)号：US07750521B2

公开(公告)日：2010-07-06

申请号：US11567850

申请日：2006-12-07

申请人： Ronghai Qu ,  John M. Kern ,  Wei Wu ,  Juan M. De Bedout ,  Manoj R. Shah ,  Ayman Mohamed Fawzi El-Refaie

发明人： Ronghai Qu ,  John M. Kern ,  Wei Wu ,  Juan M. De Bedout ,  Manoj R. Shah ,  Ayman Mohamed Fawzi El-Refaie

IPC分类号： H02K1/04

CPC分类号： H02K16/00 ,  H02K7/1823 ,  H02K21/12

摘要： An electromagnetic machine for extracting power from a turbine engine includes an outer rotor and an inner rotor rotatably supported adjacent to a stator. The stator is disposed between the inner and outer rotors. The stator has an inner set of windings disposed on an inner surface adjacent to the inner rotor, and an outer set of windings on an outer surface of the stator adjacent to the outer rotor. A plurality of permanent magnets are disposed on an inner surface of the outer rotor element and on an outer surface of the inner rotor element. Air gaps are defined between the outer surface of the stator and the outer permanent magnets, and between the inner surface of the stator portion and the inner permanent magnets. The inner stator windings form a set of multiple-phase windings, and the outer stator windings form a set of multiple-phase windings.

摘要翻译： 用于从涡轮发动机提取动力的电磁机包括外转子和与定子相邻可旋转地支撑的内转子。 定子设置在内转子和外转子之间。 定子具有设置在与内转子相邻的内表面上的内部组绕组，以及在定子的与外转子相邻的外表面上的外绕组。 多个永磁体设置在外转子元件的内表面和内转子元件的外表面上。 在定子的外表面和外部永磁体之间以及定子部分的内表面和内部永磁体之间限定气隙。 内定子绕组形成一组多相绕组，外定子绕组形成一组多相绕组。