公开(公告)号：US3794870A

公开(公告)日：1974-02-26

申请号：US3794870D

申请日：1972-07-17

Applicant: NAT RES DEV

Inventor： BROADWAY A ,  FONG W ,  RAWCLIFFE G

IPC: H02K3/28 ,  H02K3/00

CPC classification number: H02K3/28

Abstract: A three-phase, alternating current, speed-changing electric motor, or generator, suitable for six-terminal, series/parallel switching and with pole-changing effected by pole-amplitide modulation, having a composite three-phase stator winding comprising two component windings with corresponding phasewinding parts connected in the same phase of the composite winding and spaced apart from each other around the winding periphery. Most commonly the spacing is uniform.

Abstract translation: 适用于六端子，串联/并联开关和由极点放大器调制实现的极点变化的三相，交流，变速电动机或发电机，具有复合三相定子绕组，其包括两个部件 绕组，其中相应的相绕组部分连接在复合绕组的相同相中并且围绕绕组周边彼此间隔开。 最通常的间距是均匀的。

公开(公告)号：US3826960A

公开(公告)日：1974-07-30

申请号：US22813772

申请日：1972-02-22

Applicant: NAT RES DEV

Inventor： RAWCLIFFE G ,  BROADWAY A ,  FONG W

IPC: H02K3/28 ,  H02K17/10

CPC classification number: H02K17/10 ,  H02K3/28

Abstract: A single-phase alternating current, two-speed, shaded-pole induction motor having a squirrel cage rotor and having a stator winding switched to provide alternative pole-numbers by poleamplitude modulation. The stator winding has a number of coils corresponding to the lower pole-number. The coil pitch and coil spacing represent a compromise between the lower and higher polenumbers. The stator may be either of the salient pole or slotted type.

Abstract translation: 具有鼠笼式转子并具有定子绕组的单相交流，双速，阴极感应电动机，其通过极振幅调制来切换以提供替代的极数。 定子绕组具有对应于下极数的多个线圈。 线圈间距和线圈间距代表较低和较高极数之间的折衷。 定子可以是凸极或开槽型之一。

公开(公告)号：US3761753A

公开(公告)日：1973-09-25

申请号：US3761753D

申请日：1972-02-18

Applicant: NAT RES DEV

Inventor： FONG W ,  HINDLE RAWCLIFFE G

IPC: H02P1/44 ,  H02K1/14

CPC classification number: H02P1/44

Abstract: A single-phase alternating current capacitor-start electric motor with a stator winding wound as two components spaced 90 + OR - N* electrically, where N is a small angle but never zero. Both components are energised for running. For starting, one component is energised serially with a capacitor to provide starting torque. Phase reversal of one component reverses the direction of rotation.

Abstract translation: 一个单相交流电容器起动电动机，其定子绕组缠绕成两个组件，间隔90 +/- N°，其中N是小角度，但从不为零。 两个部件都通电以运行。 为了启动，一个组件用电容器串联供电以提供起动转矩。

公开(公告)号：US3721844A

公开(公告)日：1973-03-20

申请号：US3721844D

申请日：1971-05-27

Applicant: NAT RES DEV

Inventor： FONG W

IPC: H02K19/10 ,  H02K17/00

CPC classification number: H02K1/246

Abstract: The rotor of a reluctance motor has a squirrel cage winding and flux barriers which follow the paths of direct axis flux between alternate pairs of poles but lie athwart the paths of quadrature axis flux. The number of flux barriers is equal to half the number of poles for which the stator is wound, but there are not less than three flux barriers. The angles subtended at the central axis of the rotor between the ends of each flux barrier and between the ends of adjacent flux barriers are all equal to each other. In addition auxiliary flux barriers may be provided which are embraced by the main flux barriers or extend between the ends of adjacent flux barriers, or both. Also circumferential grooves may be provided either in sectors defined by the end of the main flux barriers or in sectors defined by the ends of adjacent flux barriers, or both.

Abstract translation: 磁阻电动机的转子具有鼠笼式绕组和磁通屏障，其沿着交替的极极之间的直轴通量的路径，但是位于正交轴磁通的路径上。 磁通屏障的数量等于定子缠绕的极数的一半，但不得少于三个通量屏障。 在每个磁通屏障的端部之间和相邻磁通屏障的端部之间的转子的中心轴线处的角度都相互相等。 此外，可以提供辅助通量屏障，其被主通量屏障包围或在相邻磁通屏障的端部之间延伸，或两者兼有。 也可以在由主通量屏障的端部限定的扇区中或在由相邻的通量屏障的端部或两者限定的扇区中提供周向槽。