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WO/1986/005337A1 |
A variable-speed multi-phase squirrel-cage induction motor which is driven by a variable-frequency power source of the pulse-width modulation type, which exhibits constant torque characteristics when it runs at speeds lower than a predet...
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WO/1985/003174A1 |
The proposed induction motor comprises a permanent magnet rotor and a stator which is electromagnetically energized by an alternating field. Between a rotatingly free inner part (16) of the permanent magnet rotor and the stator poles (11...
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WO/1984/003370A1 |
A motor-driven rotary actuator includes an electric drive motor adapted to be configured for providing one of a plurality of output torques. A power transmission is coupled to the drive motor and includes a rotatable output shaft and dri...
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WO/1984/003400A1 |
Electromotive machine of the type having a stator (14) and a rotor (15). The stator is provided with multiple sets of windings (quadrants 1:4, Fig. 1), each independently electrically coupled to an electrical means to establish separate ...
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WO/1984/003401A1 |
An alternating current electrical machine including a first part and a second relatively movable part and an airgap therebetween, one machine part including windings energisable in operation to produce a magnetic flux to move along said ...
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WO/1983/001713A1 |
The parametric electric machine includes an oscillator loop comprising in series a capacity (C) (C1) which is varied by mechanical means, and inductance (L) (2, 3) and an ohmic resistance (R), for the load-free values (Co), (Lo), (Ro) fo...
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WO/1983/001482A1 |
Energy converter, comprising a boiler, a turbine (11), a condenser, a feed pump (16) and a generator (17) and, if required, a recuperator and a pre-feeding pump. The thermal energy to be supplied to the boiler has been arranged to mainta...
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WO/1982/003734A1 |
Apparatus for controlling high voltage by absorption of capacitive vars, comprising a stator (10) having a core and a three phase winding (14) connected to the high voltage, and a rotor (12) having magnetic material (20) exhibiting a sha...
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WO/1982/001283A1 |
An arrangement to provide variation of the speed or other operating parameters of an electrical machine without connection to the rotor. The machine is of the induction type having a winding in separate parts to create a flux movable in ...
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WO/1981/002228A1 |
Induction motor with a short-circuited armature and a pipe cage at which the rotor bars protrude beyond the frontal side of the rotor at one or both ends thereof and on the protruding bar ends short-circuiting means are arranged. In the ...
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WO/1981/000652A1 |
Prior art design characteristics result in motor flux density being maintained during normal operation at non-optimum levels. Accordingly the motor size must be substantially larger than would theoretically be necessary in an ideal motor...
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WO/1981/000651A1 |
Induction motors traditionally have a high breakaway torque to running torque ratio to prevent motor damage from excessive current as the motor slows down under a heavy load. Such design characteristic results in motor flux density being...
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JP2024022904A |
[Problem] To prevent the permanent magnet from being demagnetized due to heat during the die-casting process in a rotor core in which both a squirrel cage conductor for self-starting and a permanent magnet are provided. Enables sufficien...
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JP7434075B2 |
According to the present invention, a stator has stator slots and stator teeth. A rotor has rotor slots, rotor teeth, and rotor slot tips projecting in a circumferential direction from the ends in the circumferential direction of the rot...
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JP7419205B2 |
This rotor has a rotor conductor, wherein the rotor conductor has: a first region in which the width of the rotor conductor in the circumferential direction decreases toward the inner circumferential side of the rotor conductor; and a se...
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JP2024502380A |
The present invention comprises a stator, a main winding (M) of the stator for generating a rotating magnetic field (RMF), and a rotor arranged to rotate relative to the main winding (M) of the stator by the RMF. The present invention re...
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JP7399843B2 |
To provide a three-phase AC axial dual gap type induction motor capable of high-speed rotation.In a three-phase AC axial dual gap type induction motor, a rotor includes a short-circuit outer ring that has a rotor core wrapped with a stri...
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JP7398920B2 |
A squirrel cage rotor, is made up of a shaft, a rotor laminated core with rotor bars which are arranged in the interior, and short-circuiting rings with clearances through which the bar ends of the rotor bars extend out of the rotor lami...
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JP2023169954A |
To provide a squirrel-cage rotor capable of depressing breakage of a holding member due to stress while depressing breakage and deformation of an end ring concentration.A squirrel-cage rotor includes: a rotor core, a plurality of rotor b...
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JP2023153665A |
To provide a three-phase induction motor capable of realizing a low-speed region requiring large torque in six-pole operation and realizing a high-speed region requiring a high rotational number by two-pole operation.In a three-phase ind...
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JP7361616B2 |
To prevent chip from entering a gap between an end ring and a bracket.An electric motor comprises: a stator 5; a rotor 6 provided on an outer peripheral side of a stator 5 via an air gap 40 and having a rotor bar 30 provided in a rotor i...
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JP2023137312A |
To provide a rotor of a motor in which breakage can be suppressed.A rotor of a motor includes a rotor core and an aluminum-made bar. The part of the bar to be in contact with the rotor core is at least partially formed of an aluminum all...
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JP7344850B2 |
To provide a rotor and a rotary electric machine that alleviates stress increase even when an axial ventilation path is provided at a bottom of a rotor slot.A squirrel-cage shaped rotor of a squirrel-cage shaped inductive rotary machine ...
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JP7309076B2 |
Enhanced network power factor corrective designs are presented that can use corrective devices that achieve long-term, operationally stable mechanical work. Embodiments can utilize reverse-winding induction motor designs with engineerabl...
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JP2023084416A |
To provide a power generation system by which, in an induction power generator provided with a primary winding having a main winding and an auxiliary winding, a power generation converter connected to the auxiliary winding side is inhibi...
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JP2023082562A |
To provide a rotary electric machine capable of filling a rotor bar material into a through hole with less pressure.A rotary electric machine according to one embodiment includes a stator, a shaft, a rotor core, and a plurality of conduc...
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JP2023524256A |
An induction machine is provided comprising a rotor, a stator and a phase shift oscillator. The stator comprises a first winding and a second winding arranged at a first angle with respect to the first winding. The phase shift oscillator...
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JP2023077392A |
To provide a radial and axial type hybrid motor capable of increasing torque even without volume increase.A hybrid motor includes a rotor 100, a radial stator 110 facing the circumference of the rotor, and axial stators 120 facing both s...
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JP2023076896A |
To provide a rotary electric machine improved in motor output and a manufacturing method thereof.A rotary electric machine 1 has a rotor 401 having a laminated iron core 103 formed by laminating multiple core pieces 501 in the axial dire...
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JP2023520147A |
The present invention relates to a rotor (11) of a dynamoelectric rotating machine (10). The rotor has one rotor core (4) arranged concentrically with respect to the rotor axis (6), the rotor core (4) has a plurality of slots (3), the sl...
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JP2023064885A |
To provide a rotor which can reliably restrict a slot inner portion of a conductor from moving to an outer side in a radial direction inside a slot before the slot inner portion is fixed to the slot.In a rotor 100, each of a plurality of...
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JP2023064902A |
To provide a rotor for a squirrel-cage induction rotary electric machine capable of making the region other than a region where a conductor is disposed, into a cavity in a slot while preventing the conductor from moving in a radial direc...
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JP2023064895A |
To provide a rotor which can reliably restrict a slot inner portion of a conductor from moving to an outer side in a radial direction inside a slot before the slot inner portion is fixed to the slot.In a rotor 100, a rotor core 10 is for...
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JP7265850B2 |
A squirrel cage rotor having a shaft, a rotor plate stack with rotor bars arranged in the interior thereof, and cage rings, wherein at least one part of a cage ring includes a disk stack, which is constituted as a layered structure of di...
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JP7264613B2 |
This rotating electrical machine comprises: a stator including a stator iron core, a stator slot disposed in the circumferential direction of the stator iron core, and a stator winding disposed in the stator slot; and a rotor including a...
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JP2023056676A |
To provide a rotor core with a secondary conductor and a rotor core manufacturing method.A rotor core includes a body portion formed by stacking a plurality of plate members made of a first metal in the direction of the rotation axis. Th...
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JP2023055178A |
To provide a single-phase electromagnetic driving system equipped with novel functions in regard to demands for application of electromagnetic driving as a driving source for various industrial facilities, machines and facilities includi...
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JP7247722B2 |
To provide a motor system capable of reducing a facility load by suppressing a starting current low, and capable of being exchanged in a short period when the motor system is in failure.A driving source 4 making a load device 2 operate w...
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JP7244236B2 |
The present invention addresses the problem of stress concentration in a rotor core and/or the interior of an end ring. According to one embodiment, a rotor for an outer-rotor type motor comprises: a rotor core having a substantially cyl...
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JP2023037849A |
To provide a rotary electric machine which can improve output density without a large size.A motor 1 includes a cylindrical stator 2 extending in an axial direction and a rotor 3 positioned inward of the stator 2 in a radial direction. T...
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JP2023026866A |
To provide an induction motor and a railway vehicle which has high efficiency and supports high-speed rotation.An induction motor 1 of the present invention comprises: a shaft 8; a rotator 3 that rotates with the shaft 8; and a stator 2 ...
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JP7214491B2 |
To provide a squirrel-cage rotor manufacture of which is facilitated.A squirrel-cage rotor 1 has a shaft 2, a rotor bar 4 and a short circuit ring 5, and a rotor laminate core 3. At least a part of the short circuit ring consists of a di...
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JP3240595U |
A variable pole type AC motor is provided in which the optimum number of poles can be selected according to the rotation speed of one AC motor. Kind Code: A1 Each coil of an AC motor has a circuit capable of changing the electric potenti...
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JP7209638B2 |
A squirrel-cage induction rotating electrical machine comprises: a solid rotor, a stator, and bearings. The solid rotor includes a shaft part, a columnar-shaped rotor core part (13) integrally formed with the shaft part and having rotor ...
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JP7198988B2 |
This alternating-current motor comprises: main cores and auxiliary cores connected alternately in the circumferential direction and formed in a ring shape; a main winding and an auxiliary winding annularly routed to the respective cores;...
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JP2023000053A |
To improve conductivity on one side of an axial direction of a conductive member inserted into a flux barrier.One embodiment of a synchronous reluctance motor has a flux barrier provided in each pole of a rotor core, and a conductive mem...
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JP7189118B2 |
To provide an abnormality detection device in which a secular change or deterioration can be detected without opening and inspecting a brush pull-up device.A brush pull-up device 100 of a main motor M1 includes collector electrodes CU, C...
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JP7185073B1 |
Provided is a rotating electrical machine capable of suppressing imbalance of a rotor and vibration of the entire rotating electrical machine. A rotary electric machine according to the present invention includes a rotating shaft, a roto...
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JP7176993B2 |
To reduce a start time during which a starting current flows in a wound-rotor induction motor.A wound-rotor comprises a rotor shaft extending in a shaft direction; a rotor core provided outside in a radial direction of the rotor shaft; a...
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JP7168680B2 |
This solid rotor (10) used in a squirrel cage induction rotating electric machine includes: a shaft part which extends in the axial direction and is rotatably supported; a columnar rotor core part (13) which is integrally formed coaxiall...
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