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1. 发明授权

US4656447A Superconducting filter coils for high homogeneity magnetic field 失效
标题翻译：用于高均匀磁场的超导滤波器线圈
公开(公告)号：US4656447A
公开(公告)日：1987-04-07
申请号：US625076
申请日：1984-06-27
申请人： Thomas A. Keim , Isaak D. Mayergoyz
发明人： Thomas A. Keim , Isaak D. Mayergoyz
IPC分类号： G01R33/3875 , H01F7/22
CPC分类号： G01R33/3875 , Y10S505/879
摘要： When a closed circuit is formed by joining superconducting wires with superconducting joints, the current in that circuit adjusts itself as required to maintain whatever total flux linkage the circuit had at the instant superconductivity was achieved. In particular, a closed circuit which first becomes superconducting under conditions of zero net flux linkage maintains zero net flux linkage as long as the circuit remains superconducting. By appropriately configuring a set of short-circuited superconducting coils, a field inside a volume described by the coils is kept substantially more uniform than it would be if the same volume were magnetized by the same source in the absence of the short-circuited coils. This property is used to insure that the volume within the coils exhibits improved magnetic field homogeneity.
摘要翻译：当通过将超导线与超导接头连接形成闭合电路时，该电路中的电流根据需要调节自身以保持电路在实现瞬时超导时具有的任何总磁链。特别地，只要电路保持超导，在零净磁通的条件下首先变为超导的闭路保持零净磁通。通过适当地配置一组短路的超导线圈，由线圈所描述的体积内的场比如果在没有短路线圈的情况下相同的体积被相同的源磁化的情况下保持基本上更均匀。该属性用于确保线圈内的体积表现出改善的磁场均匀性。

2. 发明授权

US4528532A Switch for fine adjustment of persistent current loops in superconductive circuits 失效
标题翻译：切换超导电路中持续电流回路的微调
公开(公告)号：US4528532A
公开(公告)日：1985-07-09
申请号：US553212
申请日：1983-11-18
申请人： Thomas A. Keim
发明人： Thomas A. Keim
IPC分类号： H01R39/20 , H01F6/00 , H01L39/10 , H01L39/16 , H01L39/20 , H01F7/22
CPC分类号： H01L39/20 , H01F6/006 , Y10S505/851
摘要： A small portion of a lead for a superconducting coil is made to function as a controllable resistor with a low resistance value and fast thermal response so as to be capable of rapidly being switched between the superconducting and resistive states. The device is thus capable of fine adjustment of the current flowing in a superconducting loop. The switch includes lengths of parallel conductor so that the resulting section of superconductive material is cryostable. The superconducting oil lead is disposed on a substrate so as to permit ready access for helium or other cryogenic coolant to most lead surfaces. The small mass and close contact with the coolant produce rapid turn-on and turn-off response characteristics. Furthermore, the low overall resistance causes the coil current to decay slowly, thus preventing precise control of the superconducting current.
摘要翻译：使超导线圈的引线的一小部分用作具有低电阻值和快速热响应的可控电阻器，以便能够在超导和电阻状态之间快速切换。因此，器件能够精细调节在超导环路中流动的电流。该开关包括平行导体的长度，使得所得到的超导材料部分是可低温的。超导油引线设置在基板上，以允许氦气或其他低温冷却剂容易接近大多数引线表面。与冷却液的小质量和紧密接触产生快速的开启和关闭响应特性。此外，低的总电阻使得线圈电流缓慢衰减，从而阻止对超导电流的精确控制。

3. 发明授权

US06912142B2 Alternator control circuit and related techniques 有权
标题翻译：交流发电机控制电路及相关技术
公开(公告)号：US06912142B2
公开(公告)日：2005-06-28
申请号：US10086069
申请日：2001-10-22
申请人： Thomas A. Keim , David J. Perreault
发明人： Thomas A. Keim , David J. Perreault
IPC分类号： B60L11/18 , H02J7/00 , H02J7/14 , H02M3/158 , H02M7/217 , H02P6/18 , H02P9/30 , H02P9/48 , H02M5/42
CPC分类号： B60L11/1803 , B60L15/007 , B60L2210/20 , B60L2220/54 , H02J7/0054 , H02J7/1423 , H02J2001/006 , H02J2007/0059 , H02M3/158 , H02M7/217 , H02M2001/009 , H02M2003/1552 , H02P6/182 , H02P9/305 , H02P9/307 , H02P9/48 , H02P2101/15 , Y02T10/641 , Y02T10/644 , Y02T10/645 , Y02T10/7005 , Y02T10/725
摘要： An alternator system having an alternating current (ac) voltage source includes a switched-mode rectifier (SMR) coupled to the ac voltage source and having an output port coupled to an output of the alternator system, and a controller coupled to said switched-mode rectifier so as to provide a controlled pulse sequence synchronized with an angular rotor position of the (ac) voltage source to activate and deactivate the switched-mode rectifier. The controller further includes a PWM generator having a first input to receive a total duty ratio signal synchronized with an angular rotor position of the (ac) voltage source. The switched mode rectifiers are controlled to increase power output levels at lower speeds near idle. The controller combines improved idle speed power output levels with load matching improvements from PWM control for more efficient operation when compared to circuits using conventional control or PWM load matching control alone.
摘要翻译：具有交流（AC）电压源的交流发电机系统包括耦合到交流电压源并且具有耦合到交流发电机系统的输出的输出端口的开关模式整流器（SMR），以及耦合到所述开关模式整流器以提供与（ac）电压源的角转子位置同步的受控脉冲序列，以激活和去激活开关模式整流器。控制器还包括PWM发生器，其具有第一输入端，以接收与（ac）电压源的角转子位置同步的总占空比信号。开关模式整流器被控制以在空闲时以更低的速度增加功率输出电平。与仅使用常规控制或PWM负载匹配控制的电路相比，控制器将改进的怠速功率输出电平与PWM控制的负载匹配改进相结合，以实现更高效的操作。

4. 发明授权

US4404486A Star connected air gap polyphase armature having limited voltage gradients at phase boundaries 失效
标题翻译：星形连接气隙多相电枢在相位边界处具有有限的电压梯度
公开(公告)号：US4404486A
公开(公告)日：1983-09-13
申请号：US220203
申请日：1980-12-24
申请人： Thomas A. Keim , Stephen H. Minnich
发明人： Thomas A. Keim , Stephen H. Minnich
IPC分类号： H02K3/28 , H02K19/00
CPC分类号： H02K3/28
摘要： A star (wye) connected air gap polyphase armature having limited voltage differences between physically adjacent coil windings at the phase boundary for the different phase circuits. The unconnected lead of the coil or coils at the first edge of the phase belt region forms the neutral terminal for connection of the phase winding in a star or wye circuit comprised of other similarly formed phase windings, and the unconnected lead of the last coil or coils remaining at the middle of the phase belt region forms the line terminal for the multiple coil phase winding to thereby minimize voltage differences between turns of physically-adjacent phase windings at the phase boundaries.
摘要翻译：在不同相电路的相边界处，物理相邻的线圈绕组之间具有有限的电压差的星形（Y形）气隙多相电枢。在相位带区域的第一边缘处的线圈或线圈的未连接引线形成中性端子，用于将相绕组连接在包括其他类似形成的相绕组的星形或者微带电路中，以及最后线圈的未连接引线或保留在相带区域中间的线圈形成用于多线圈相绕组的线路端子，从而使在相位边界处的物理相邻相绕组的匝间的电压差最小化。

5. 发明授权

US5691589A Detachable magnet carrier for permanent magnet motor 失效
标题翻译：永磁电机可拆卸磁铁架
公开(公告)号：US5691589A
公开(公告)日：1997-11-25
申请号：US496928
申请日：1995-06-30
申请人： Thomas A. Keim , Peter P. Mongeau , Thomas Dade
发明人： Thomas A. Keim , Peter P. Mongeau , Thomas Dade
IPC分类号： H02K1/27 , H02K15/03 , H02K21/12
CPC分类号： H02K1/2786 , H02K1/2793 , H02K15/03 , H02K2213/12 , Y10T29/49009 , Y10T29/49012
摘要： A magnet carrier assembly for holding and carrying a high-energy-product permanent magnet is arranged for releasable attachment to a rotor of an axial disc or drum type rotor in an electric machine. The permanent magnet placed in a container which then receives a cover. The magnet carrier assembly includes a mounting flange at one end and a locating and mounting tab at an opposite end for attaching the assembly to the rotor. In certain applications, the rotor has recesses which have a size and shape complementary to the size and shape of the magnet carrier assembly. The recesses are circumaxially located around the radial periphery of the rotor at the poles of the rotor. In other embodiments, the magnet carrier assembly includes a key which is received in a mating groove in a rotor surface and is used to transfer to the rotor the electromagnetic shear force developed by the high-energy-product permanent magnet. The present magnet carrier assembly can be used with both axial field disc or radial field drum rotors. The present invention also contemplates a method and apparatus for removing and installing magnet carrier assemblies in electric machines.
摘要翻译：用于保持和携带高能量永磁体的磁体载体组件布置成用于可释放地附接到电机中的轴向盘或鼓式转子的转子。将永磁体放置在容器中，然后容纳盖子。磁体支架组件包括在一端的安装凸缘和在相对端的定位和安装凸片，用于将组件附接到转子。在某些应用中，转子具有凹槽，其具有与磁体承载组件的尺寸和形状互补的尺寸和形状。凹部在转子的极点周围位于转子的径向周边周围。在其它实施例中，磁体支架组件包括一个钥匙，该钥匙被容纳在转子表面的配合槽中，并用于将由高能量永磁体产生的电磁剪切力传递到转子。本磁体载体组件可以与轴向场盘或径向场鼓转子一起使用。本发明还考虑了一种用于在电机中去除和安装磁体载体组件的方法和装置。

6. 发明授权

US4281264A Mounting of armature conductors in air-gap armatures 失效
标题翻译：电枢导体安装在气隙电枢中
公开(公告)号：US4281264A
公开(公告)日：1981-07-28
申请号：US014942
申请日：1979-02-26
申请人： Thomas A. Keim , Donald W. Jones
发明人： Thomas A. Keim , Donald W. Jones
IPC分类号： H02K3/47 , H02K3/48
CPC分类号： H02K3/47 , Y10S174/20
摘要： In a dynamoelectric machine having armature conductors located in the air-gap separating rotor and stator, the conductors are secured to the stator structure. Conductor fastening means are provided which maintain the armature conductors and their support members in compression in all modes of operation of the machine.
摘要翻译：在具有位于气隙分离转子和定子中的电枢导体的电动机中，导体固定到定子结构。提供了导体紧固装置，其在电机的所有操作模式中使电枢导体及其支撑构件保持压缩。

7. 发明授权

US4214182A Support structure for armature conductors 失效
标题翻译：电枢导体的支撑结构
公开(公告)号：US4214182A
公开(公告)日：1980-07-22
申请号：US917170
申请日：1978-06-20
申请人： Thomas A. Keim
发明人： Thomas A. Keim
IPC分类号： H02K3/47 , H02K55/04 , H02K1/00
CPC分类号： H02K55/04 , H02K3/47 , Y02E40/625
摘要： Armature conductors are mounted to the ferromagnetic stator core of an AC machine by a plurality of flexible supports. Each support comprises a plurality of teeth interleaved with spacers having a discontinuity which creates a spring section on each tooth. The structure of the support provides a flexible mounting which will accommodate differential thermal expansion between the armature conductors and the stator core during operation while providing rigid attachment between the conductors and the stator core in the radial and azimuthal directions.
摘要翻译：电枢导体通过多个柔性支撑件安装到交流电机的铁磁定子芯上。每个支撑件包括与间隔件交错的多个齿，其具有在每个齿上产生弹簧部分的不连续性。支架的结构提供了灵活的安装，其将在运行期间适应电枢导体和定子芯之间的差异热膨胀，同时在径向和方位方向上提供导体和定子芯之间的刚性附接。

8. 发明授权

US06755166B2 Electromechanical valve drive incorporating a nonlinear mechanical transformer 失效
标题翻译：装有非线性机械变压器的机电阀驱动器
公开(公告)号：US06755166B2
公开(公告)日：2004-06-29
申请号：US10245453
申请日：2002-09-17
申请人： Woo Sok Chang , Thomas A. Keim , John G. Kassakian
发明人： Woo Sok Chang , Thomas A. Keim , John G. Kassakian
IPC分类号： F01L130
CPC分类号： F01L1/042 , F01L1/30 , F01L9/02 , F01L9/04 , F01L2009/0411 , F01L2105/00 , Y10T74/1683
摘要： The present invention provides a means to reduce holding current and driving current of EMVD's effectively and practically and to provide soft landing of a valve. The invention incorporates a nonlinear mechanical transformer as part of an EMVD system. The nonlinear mechanical transformer is designed for the spring and the inertia in the EMVD to have desirable nonlinear characteristics. With the presently disclosed invention, the holding current and driving current are reduced and soft valve landing is achieved. The nonlinear characteristics of a nonlinear mechanical transformer can be implemented in various ways. The concept of the invention can be applied not only to EMVD's but also to general reciprocating and bi-stable servomechanical systems, where smooth acceleration, soft landing, and small power consumption are desired.
摘要翻译：本发明提供了一种有效和实际地减小EMVD的保持电流和驱动电流并提供阀的软着陆的手段。本发明将非线性机械变压器作为EMVD系统的一部分。非线性机械变压器设计用于弹簧，EMVD中的惯性具有理想的非线性特性。利用目前公开的发明，减小了保持电流和驱动电流，并实现了软阀门的着陆。非线性机械变压器的非线性特性可以以各种方式实现。本发明的概念不仅可以应用于EMVD，还可以应用于平滑加速，软着陆和小功率消耗的通用往复式和双稳态伺服机构系统。

9. 发明授权

US5831365A Detachable magnet carrier for permanent magnet motor 失效
标题翻译：永磁电机可拆卸磁铁架
公开(公告)号：US5831365A
公开(公告)日：1998-11-03
申请号：US888369
申请日：1997-07-03
申请人： Thomas A. Keim , Peter P. Mongeau , Thomas Dade
发明人： Thomas A. Keim , Peter P. Mongeau , Thomas Dade
IPC分类号： H02K1/27 , H02K15/03 , H02K21/12
CPC分类号： H02K1/2786 , H02K1/2793 , H02K15/03 , H02K2213/12 , Y10T29/49009 , Y10T29/49012
摘要： A magnet carrier assembly for holding and carrying a high-energy-product permanent magnet is arranged for releasable attachment to a rotor of an axial disc or drum type rotor in an electric machine. The permanent magnet placed in a container which then receives a cover. The magnet carrier assembly includes a mounting flange at one end and a locating and mounting tab at an opposite end for attaching the assembly to the rotor. In certain applications, the rotor has recesses which have a size and shape complementary to the size and shape of the magnet carrier assembly. The recesses are circumaxially located around the radial periphery of the rotor at the poles of the rotor. In other embodiments, the magnet carrier assembly includes a key which is received in a mating groove in a rotor surface and is used to transfer to the rotor the electromagnetic shear force developed by the high-energy-product permanent magnet. The present magnet carrier assembly can be used with both axial field disc or radial field drum rotors. The present invention also contemplates a method and apparatus for removing and installing magnet carrier assemblies in electric machines.
摘要翻译：用于保持和携带高能量永磁体的磁体载体组件布置成用于可释放地附接到电机中的轴向盘或鼓式转子的转子。将永磁体放置在容器中，然后容纳盖子。磁体支架组件包括在一端的安装凸缘和在相对端的定位和安装凸片，用于将组件附接到转子。在某些应用中，转子具有凹槽，其具有与磁体承载组件的尺寸和形状互补的尺寸和形状。凹部在转子的极点周围位于转子的径向周边周围。在其它实施例中，磁体支架组件包括一个钥匙，该钥匙被容纳在转子表面的配合槽中，并用于将由高能量永磁体产生的电磁剪切力传递到转子。本磁体载体组件可以与轴向场盘或径向场鼓转子一起使用。本发明还考虑了一种用于在电机中去除和安装磁体载体组件的方法和装置。

10. 发明授权

US4581580A Intentionally non-orthogonal correction coils for high-homogeneity magnets 失效
标题翻译：用于高均匀磁体的故意非正交校正线圈
公开(公告)号：US4581580A
公开(公告)日：1986-04-08
申请号：US561495
申请日：1983-12-14
申请人： Thomas A. Keim
发明人： Thomas A. Keim
IPC分类号： G01R33/20 , A61B5/055 , A61B10/00 , G01R33/38 , G01R33/3875 , H01F5/00
CPC分类号： G01R33/3875 , Y10S505/843
摘要： In the design of large electromagnets having high magnetic field uniformity requirements it is common practice to employ a set of correction coils and coil circuits, each coil being excited so as to correct for a specially defined, symmetrically shaped error field. The error field is typically defined as certain terms in a spherical harmonic expansion for the field. The present invention proposes instead to provide a set of correction coil circuits in which the creation of a desired spherical harmonic is achieved by exciting a set of correction coils with a specified set of currents, and in which the same coils can further be used to create a spherical harmonic of substantially different symmetry by exciting the same coils with a different set of currents. In the present invention, a linear combination of spherical harmonic components may be effected, so as to increase the flexibility of operation and the correction capability of the magnet and correction coil structure.
摘要翻译：在具有高磁场均匀性要求的大型电磁铁的设计中，通常采用一组校正线圈和线圈电路，每个线圈被激励以校正特别限定的对称形状的误差场。误差场通常被定义为场的球面谐波膨胀中的某些项。本发明提出了提供一组校正线圈电路，其中通过用指定的一组电流激励一组校正线圈来实现所需球面谐波的产生，并且其中可以进一步使用相同的线圈来创建通过用不同的电流组激励相同的线圈，实现对称性的球面谐波。在本发明中，可以实现球面谐波分量的线性组合，以增加磁体和校正线圈结构的操作灵活性和校正能力。

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