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1. 发明授权

US07288870B2 Stator core 有权
标题翻译：定子核心
公开(公告)号：US07288870B2
公开(公告)日：2007-10-30
申请号：US10849882
申请日：2004-05-21
申请人： Alan J Mitcham , Anthony G Razzell
发明人： Alan J Mitcham , Anthony G Razzell
IPC分类号： H02K1/00
CPC分类号： H02K5/20 , H02K1/02 , H02K1/20 , H02K9/00
摘要： A stator core 2 comprises laminations (9) of low loss stator iron forming a body of magnetic nature and lamination components (11) of high thermal conductivity material regularly arranged within that body. The high thermal conductivity components (11) increasing the effective radial thermal conductivity rate of the core 2 whereby temperature gradients are reduced in comparison with previous stator cores. Thus, there is a reduction in operational temperature of the electrical insulation on the stator windings.
摘要翻译：定子芯2包括形成磁性体的低损耗定子铁的叠片（9）和规则地布置在该主体内的高导热性材料的层压部件（11）。高导热率组分（11）提高了芯2的有效径向热导率，从而与先前的定子芯相比，温度梯度减小。因此，定子绕组上的电绝缘的工作温度降低。

2. 发明授权

US5886449A Electrical machine 失效
标题翻译：电机
公开(公告)号：US5886449A
公开(公告)日：1999-03-23
申请号：US694427
申请日：1996-08-08
申请人： Alan J Mitcham
发明人： Alan J Mitcham
IPC分类号： H02K16/00 , H02K21/12 , H02K37/12 , H02K1/22
CPC分类号： H02K21/125 , H02K37/12 , H02K2201/06 , H02K2201/12
摘要： An electrical machine has a rotor shaft which carries a plurality of rotor discs for rotation therewith. Each rotor disc has two pairs of rotor rims secured thereto. Each rotor rim consists of a single row of alternate magnets and pole pieces and is opposed by a series of stator cores which straddle the rotor rim. The stator cores are `c` shaped so that they receive flux from two adjacent magnets and close around two opposite rotor poles on either side of the rotor rim. The stator cores, formed by winding electrical steel around a former, reduce the losses caused by eddy currents generated when flux impinges on the side faces of the stator core.
摘要翻译：电机具有转子轴，该转子轴承有多个用于与其一起旋转的转子盘。每个转子盘具有固定到其上的两对转子轮缘。每个转子轮辋由一排交替磁体和极片组成，并且与一系列定子铁心相对，该定子铁心跨过转子轮辋。定子铁芯'c'形，使得它们接收来自两个相邻磁体的磁通，并且关闭转子边缘两侧的两个相对的转子极。定子铁心是通过将电钢绕在前者上而形成的，减少了当磁通量撞击定子铁心的侧面时产生的涡流所引起的损耗。

3. 发明授权

US4934243A Electromagentic projectile launcher 失效
标题翻译：电子弹射器
公开(公告)号：US4934243A
公开(公告)日：1990-06-19
申请号：US339620
申请日：1989-05-31
申请人： Alan J. Mitcham , Derek Putley
发明人： Alan J. Mitcham , Derek Putley
IPC分类号： F41B6/00
CPC分类号： F41B6/006
摘要： An electromagnetic projectile launcher (commonly referred to as a "railgun") consists of an electrical direct current power supply, two parallel rails (52), and switching armature (54) releasably linked to a projectile armature (56), each armature being slideably located in mutually parallel channels between and along the length of the rails. The rails are each provided with two overlapping conductive zones along their length, the first zone (60) being electrically connected to the power source and in electrical contact with the switching armature in its start position. In operation, electromagnetic forces induced by the power supply propel the switching armature (54), and hence the projectile armature (56) linked to it, along the rails from the start position until the projectile armature comes into electrical contact with the second conductive zone (62). Thereafter the switching armature travels to a position where it is eliminated from the power supply curcuit to prevent it remaining a resistive element in the circuit, the link between the two armatures is broken, and the projectile armature (56) is accelerated through the second zone (62) to its launch velocity to launch the projectile (72). The overlap of the conductive zones (60,62) reduces the tendency for arcing to occur at the trailing edge of the switching armature (54) as it is eliminated from the circuit.
摘要翻译： PCT No.PCT / GB87 / 00695 Sec。 371日期：1989年5月31日 102（e）日期1989年5月31日PCT提交1987年10月1日PCT公布。出版物WO88 / 02467 日期：1988年4月7日。电磁射弹发射器（通常称为“轨道枪”）由电气直流电源，两个平行轨道（52）和可释放地连接到射弹电枢的切换电枢（54）组成 56），每个电枢可滑动地定位在沿着轨道的长度之间并沿着轨道的长度的相互平行的通道中。导轨各自沿着它们的长度设置有两个重叠的导电区域，第一区域（60）电连接到电源并且在开始位置与开关电枢电接触。在操作中，由电源引起的电磁力推动开关电枢（54），并因此推动与其相连的弹射电枢（56），从起始位置到轨道，直到弹丸衔铁与第二导电区域（62）。此后，开关电枢行进到从电源电路消除的位置，以防止其在电路中保留电阻元件，两个电枢之间的连接断开，并且弹丸电枢（56）通过第二区域被加速（62）发射速度发射射弹（72）。导电区（60,62）的重叠减少了在从电路消除时在开关电枢（54）的后缘发生电弧的趋势。

4. 发明申请

US20100117569A1 SYNCHRONOUS ELECTRICAL MACHINE 有权
标题翻译：同步电机
公开(公告)号：US20100117569A1
公开(公告)日：2010-05-13
申请号：US12451819
申请日：2008-06-13
申请人： David R. Trainer , John J.A. Cullen , Alan J. Mitcham , Andrew M. Cross , Andrew J. Forsyth , Ahmed A-M Abdel-Hafez
发明人： David R. Trainer , John J.A. Cullen , Alan J. Mitcham , Andrew M. Cross , Andrew J. Forsyth , Ahmed A-M Abdel-Hafez
IPC分类号： H02P27/00
CPC分类号： H02P9/00 , H02P9/006 , H02P25/22 , H02P29/0243 , H02P29/032 , H02P29/50 , H02P2101/30
摘要： A synchronous electrical machine comprising a plurality of phases, detecting means arranged to detect a fault in at least one of the phases of the synchronous electrical machine, isolating means arranged to isolate the at least one phase of the synchronous electrical machine with the fault, phase shift means arranged to produce a controlled phase shift between the voltage and the current within the remaining phases of the synchronous electrical machine to adjust the phase angle and magnitude of the second harmonic powers produced by the remaining phases of the synchronous electrical machine such that the vector sum of the second harmonic power vectors of the remaining phases of the synchronous electrical machine is zero.
摘要翻译：一种包括多相的同步电机，被配置为检测所述同步电机的至少一相中的故障的检测装置，被配置为将所述同步电机的至少一相与故障相隔离的隔离装置移位装置被布置成在同步电机的剩余相位内的电压和电流之间产生受控的相移，以调整由同步电机的剩余相产生的二次谐波功率的相位角和幅度，使得矢量同步电机的其余相的二次谐波功率矢量的和为零。

5. 发明授权

US07339303B2 Electrical machine 有权
标题翻译：电机
公开(公告)号：US07339303B2
公开(公告)日：2008-03-04
申请号：US10954268
申请日：2004-10-01
申请人： Alan J Mitcham
发明人： Alan J Mitcham
IPC分类号： H02K17/16
CPC分类号： H02K17/165
摘要： An electrical machine incorporates a rotor core assembly (30) wherein the core (33) has rotor bars (31) extending into and secured within slots of end rings (34) either side of the core (33). The core (33) is secured in axial compression upon a shaft (35) by at least inner clamp rings (37). These inner clamp rings (37) include a recess, which in association with a recess in an outer clamp ring (38) forms a cavity to retain a clamp section (36) of the respective end rings (34). The outer clamp ring (38) is secured to the inner clamp ring (37) typically using bolts. Thus, the structural strength of the clamp rings (37, 38) inhibits differential radial growth between the core (33) and the end rings (34) due to thermal, rotational and centrifrugal expansion.
摘要翻译：电机包括转子芯组件（30），其中芯部（33）具有延伸到并固定在芯部（33）的任一侧上的端环（34）的狭槽内的转子杆（31）。芯部（33）通过至少内部夹紧环（37）固定在轴（35）上的轴向压缩中。这些内部夹紧环（37）包括凹部，其与外部夹紧环（38）中的凹部相关联，形成空腔以保持各个端环（34）的夹紧部分（36）。通常使用螺栓将外部夹紧环（38）固定到内侧夹紧环（37）上。因此，由于热，旋转和离心扩张，夹紧环（37,38）的结构强度抑制了芯（33）和端环（34）之间的径向径向生长差异。

6. 发明授权

US06825640B1 Generator arrangements 有权
标题翻译：发电机安排
公开(公告)号：US06825640B1
公开(公告)日：2004-11-30
申请号：US10295845
申请日：2002-11-18
申请人： Jason E Hill , Steven J Mountain , Alan J Mitcham
发明人： Jason E Hill , Steven J Mountain , Alan J Mitcham
IPC分类号： H02P1106
CPC分类号： H02P9/48 , H02P9/302 , H02P9/305 , H02P2101/30
摘要： A permanent magnet fault tolerant generator 32 is driven by a variable speed shaft 34 to create AC power at terminals 36, converted at 40 to DC power before being applied to a load 38. The converter 40 is a bi-directional device which rectifies AC to DC and also acts as an inverter to synthesize AC from the DC. This synthesized AC waveform is imposed on the terminals 36 to maintain a constant magnitude generator output voltage, regardless of the speed of the shaft 34, and thus regardless of the EMF of the generator. This results in reactive currents flowing between the generator 32 and the converter 40, but allows the generator design have a reduced current rating, resulting in improved generator size and weight.
摘要翻译：永久磁铁容错发电机32由变速轴34驱动，以在端子36之间产生AC电力，在施加到负载38之前以40转换成直流电力。转换器40是一个双向装置，其将AC整流到 DC并且还用作逆变器以从DC合成AC。该合成的AC波形被施加在端子36上，以保持恒定的发电机输出电压，而不管轴34的速度如何，因此与发电机的EMF无关。这导致无功电流在发电机32和转换器40之间流动，但允许发电机设计具有降低的额定电流，从而改善发电机的尺寸和重量。

7. 发明授权

US5973436A Electrical machine 失效
标题翻译：电机
公开(公告)号：US5973436A
公开(公告)日：1999-10-26
申请号：US903357
申请日：1997-07-30
申请人： Alan J. Mitcham
发明人： Alan J. Mitcham
IPC分类号： H02K21/12 , H02K37/12
CPC分类号： H02K21/125 , H02K2201/12
摘要： An electrical machine has a rotor shaft (12) which carries a plurality of rotor discs (14) for rotation therewith. Each rotor disc (14) has pairs of rotor rims (16) secured thereto. Each rotor rim (16) consists of a single row of alternate magnets (20) and laminated pole pieces (18) and is opposed by a series of stator cores (22) which straddle the rotor rim (16). Armature windings (24) are disposed within the stator cores (22) for operably exciting said stator. The phase relationship between the currents through the armature windings (24) and the orientation of the stator cores (22) or the magnets (20) in opposing rims (16) are such that the effects of electromagnetic coupling, long path fluxes and torque ripple is reduced.
摘要翻译：电机具有转子轴（12），该转子轴（12）承载多个用于与其一起旋转的转子盘（14）。每个转子盘（14）具有固定到其上的成对的转子轮缘（16）。每个转子轮辋（16）由单排交替磁体（20）和层叠极片（18）组成，并且与跨过转子轮辋（16）的一系列定子铁心（22）相对。电枢绕组（24）设置在定子铁芯（22）内，用于可操作地激励所述定子。通过电枢绕组（24）的电流和相对的边缘（16）中的定子铁心（22）或磁体（20）的取向之间的相位关系使得电磁耦合，长路径通量和转矩波动的影响降低了。

8. 发明授权

US08395346B2 Synchronous electrical machine 有权
标题翻译：同步电机
公开(公告)号：US08395346B2
公开(公告)日：2013-03-12
申请号：US12451819
申请日：2008-06-13
申请人： David R Trainer , John J A Cullen , Alan J Mitcham , Andrew M Cross , Andrew J Forsyth , Ahmed A-M Abdel-Hafez
发明人： David R Trainer , John J A Cullen , Alan J Mitcham , Andrew M Cross , Andrew J Forsyth , Ahmed A-M Abdel-Hafez
IPC分类号： H02P3/18
CPC分类号： H02P9/00 , H02P9/006 , H02P25/22 , H02P29/0243 , H02P29/032 , H02P29/50 , H02P2101/30
摘要： A synchronous electrical machine having a plurality of phases, a detecting unit arranged to detect a fault in at least one of the phases of the synchronous electrical machine, an isolating unit arranged to isolate the at least one phase of the synchronous electrical machine with the fault, a phase shift unit arranged to produce a controlled phase shift between the voltage and the current within the remaining phases of the synchronous electrical machine to adjust the phase angle and magnitude of the second harmonic powers produced by the remaining phases of the synchronous electrical machine such that the vector sum of the second harmonic power vectors of the remaining phases of the synchronous electrical machine is zero.
摘要翻译：一种具有多相的同步电机，检测单元，被配置为检测所述同步电机的至少一相中的故障;隔离单元，被布置成将所述同步电机的所述至少一相与故障隔离相移单元，被配置为在同步电机的剩余相位内的电压和电流之间产生受控的相移，以调整由同步电机的其余相产生的二次谐波功率的相位角和大小，同步电机的剩余相位的二次谐波功率矢量的向量和为零。

9. 发明授权

US07474030B2 Magnetic coils for electrical machines 有权
标题翻译：电机用磁线圈
公开(公告)号：US07474030B2
公开(公告)日：2009-01-06
申请号：US11593115
申请日：2006-11-06
申请人： Alan J Mitcham
发明人： Alan J Mitcham
IPC分类号： H02K17/00
CPC分类号： H02K3/14 , Y10T29/49009 , Y10T29/49071
摘要： A magnetic coil 32 for an electrical machine is constructed from two sub-conductors 34A, 34B, each in the form of laminae of conducting material such as copper sheet, coated with an insulating material. At one end of the coil, the sub-conductors extend by different distances, to provide space at 39 for a transposition of the sub-conductors.
摘要翻译：用于电机的电磁线圈32由两个分导体34A，34B构成，每个分导体34A，34B以包覆有绝缘材料的铜片等导电材料层的形式。在线圈的一端，分导体延伸不同的距离，以便在39处提供用于分导体的转置的空间。

10. 发明授权

US07265472B2 Magnetic coils for electrical machines 有权
标题翻译：电机用磁线圈
公开(公告)号：US07265472B2
公开(公告)日：2007-09-04
申请号：US10921152
申请日：2004-08-19
申请人： Alan J Mitcham
发明人： Alan J Mitcham
IPC分类号： H02K3/04
CPC分类号： H02K3/14 , Y10T29/49009 , Y10T29/49071
摘要： A magnetic coil 32 for an electrical machine is constructed from two sub-conductors 34A, 34B, each in the form of laminae of conducting material such as copper sheet, coated with an insulating material. At one end of the coil, the sub-conductors extend by different distances, to provide space at 39 for a transposition of the sub-conductors.
摘要翻译：用于电机的电磁线圈32由两个分导体34A，34B构成，每个分导体34A，34B以覆盖有绝缘材料的铜片等导电材料层的形式。在线圈的一端，分导体延伸不同的距离，以便在39处提供用于分导体的转置的空间。

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