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9030071 Electrical machines  
An electrical machine 20, 48 comprises a first stator 22 and a second stator 24 spaced from the first stator 22, at least one of the first stator 22 and the second stator 24 including a guide...
9006949 Synchronous motor  
A double-stator synchronous motor has a rotor, an inner stator and an outer stator. The rotor has segment-magnetic poles arranged in a ring shape. Magnetic poles formed in the inner stator and the...
9000649 Cross-interlocked multi-set switch type DC brushless electric machine system having auxiliary excitation winding set  
The present invention relates to a multi-set switched DC brushless electric machine having its rotary part of electric machine being installed with an auxiliary excitation winding set, for being...
9000641 Actuator for electric adjusting device of vehicle seat with several adjusting functions  
An actuator for an electric adjusting device of a vehicle seat has several adjusting functions. The actuator includes a frame, an electric drive motor disposed on the frame, having an output shaft...
9000644 Concentric motor power generation and drive system  
An apparatus is provided and includes a hub, including opposing faces, a first sidewall fixed to the opposing faces to define a first interior and a second sidewall fixed to one of the opposing...
8987962 Double-stator/double-rotor type motor and direct drive apparatus for washer using same  
Provided are a double-stator/double-rotor type motor, and a direct drive apparatus for a washing machine using the double-stator/double-rotor type motor, in which a nonmagnetic material is...
8957554 Stepping motor with position regulation member  
A stepping motor includes a stator, a rotor which is rotatable to the stator, a rotor-side position regulation part which is fixed to the rotor and is rotated together with the rotor, and a...
8946952 Low profile spindle motor  
A low profile spindle motor for supporting and rotating media disk or disks of a hard disk drive includes a plurality of stator teeth, a winding layer which may be formed by printed circuit board...
8922087 High efficiency low torque ripple multi-phase permanent magnet machine  
An electrically driven motor, an electrical generator, a rotating electrical machine and method of operating, that includes a rotating rotor having an even number of alternating polarity permanent...
8917004 Homopolar motor-generator  
A motor-generator utilizes a multi-part rotor encircling a stator, the rotor including a plurality of rotor segments.
8878373 Variable electrical generator  
A variable electrical generator (20) is operable to convert mechanical motion to electrical power. The generator (20) includes at least a stator element (60) and a rotor element (50) including...
8860274 Motor provided with two stators arranged radially inside and outside rotor  
In a double-stator motor has a rotary shaft, an annular rotor is coupled with a rotary shaft. First and second three-phase stators are arranged inside and outside to the rotor in the radial...
8860281 Multiple-gap electric rotating machine  
The multiple-gap electric rotating machine includes a rotor cantilever-supported at a first axial end thereof by a rotor arm coupled to a rotating shaft. The rotor includes a laminated core of...
8860268 Rotational vibration exciter  
Provided is an rotational vibration exciter, and more particularly to an rotational vibration exciter which can accurately generate angular vibration of a printed circuit board including a moving...
8816554 Motor  
A clutch mechanism moving together with an actuator allows coupling or decoupling an inner rotor to or from a power shaft, thereby controlling a rotation angle. This structure allows a polarity of...
8810347 Method and apparatus for activating an electric machine, and electric machine  
A method of activating an electric machine having a stator, and a rotor which rotates about an axis with respect to the stator; the stator having a plurality of stator segments arranged about the...
8810099 Power magnetic planetary gear set  
A power magnetic planetary gear set uses stator of a motor to provide electrically generated magnetic sections. The electrically generated magnetic sections are variable under the excitation...
8766500 System and method for power purifying  
A system and method for power purification is provided. The system contains a power source. A motor is connected to the power source. A plurality of rotating elements is provided, each rotatable...
8749105 Magnetic inductor rotary machine and fluid transfer apparatus that uses the same  
A high-efficiency magnetic inductor rotary machine in which eddy current loss is reduced even if driven at super-high-speed rotation, and a fluid transfer apparatus that uses the same. In the...
8742641 Concentric motor power generation and drive system  
An apparatus is provided and includes a hub, including first and second opposing faces, a first sidewall fixed at opposite ends thereof to the first and second opposing faces to define a first...
8720635 Vehicle having two generators  
A vehicle includes an engine having a crankshaft, a charging generator disposed on the crankshaft, a power-supplying generator driven by the engine and including a rotating shaft misaligned from...
8710708 Tandem electric machine arrangement  
The tandem electric machine arrangement comprises an outside rotor having two axially spaced-apart sets of circumferentially-disposed permanent magnets. It also comprises an inside stator having...
8680730 Low voltage high horsepower brushless motor assembly  
A low voltage high horsepower brushless motor assembly including a plurality of axially aligned and interconnected stator module sections, a plurality of rotor modules mounted upon a common shaft...
8674649 High acceleration rotary actuator  
A high acceleration rotary actuator motor assembly is provided comprising a plurality of phase motor elements provided in tandem on a shaft, each phase element including a rotor carrying magnets...
8664962 Winding method and winding structure of stator for rotation detector, and electric motor comprising rotation detector  
The N1(s) turns of a first output winding is divided by a split ratio α into N1a(s) turns of a lower-layer first output winding and N1b(s) of an upper-layer first output winding. The lower-layer...
8653766 Linear motor driving system and linear motor control method  
In a linear motor, a driving device calculates a deviation between a position command from a controller and a position detected by a position sensor, a position controlling is performed...
8648514 Rotary electric motor and blower that uses the same  
In a rotary electric motor a first stator core and a second stator core are disposed coaxially so as to be separated by a predetermined distance axially and such that circumferential positions of...
8643249 Electrostatic generator/motor configurations  
Electrostatic generators/motors designs are provided that generally may include a first cylindrical stator centered about a longitudinal axis; a second cylindrical stator centered about the axis,...
8629586 Electric rotating machine with cooling mechanism  
An electric rotating machine includes a rotor, a stator in which a coil is so wound as to have an coil end, and a coolant supply pipe. The coolant supply pipe lies with a length thereof extending...
8624460 MP-T II machines  
MP-T II Machines are alternating current, two, three, or four or more phase machines of the multipolar type, i.e. machines whose torque is produced in a cylindrical current tube through axially...
8621958 Drive device  
A drive device serves for adjusting an operating element for a valve, a throttle, a blow-out preventor or the like, in particular in the field of gas and oil production, the operating element...
8610325 Generator with non-magnetic rotor  
The generator contains an outer casing, a non-magnetic rotor, an inner casing, outer stators, and inner stators. The non-magnetic rotor has an internal storage space, and is axially mounted on an...
8604804 Method and structure of winding of stator for rotation detector, and electric motor comprising rotation detector  
The N1(s) turns of an output winding is divided by a split ratio α into N1a(s) turns of an output winding (1a) and N1b(s) turns of an output winding (1b). The output winding (1a) is continuously...
8604739 Vector control for an axial gap motor  
A controller for an axial gap-type motor (3) comprises a rotor (11) having a permanent magnet and a first stator (12a) and a second stator (12b) opposed to each other with the rotor (11)...
8598757 Magnetic-controlled actuator with auto-locking function for joints of manipulation arm  
A magnetic-controlled actuator (100) with an auto-locking function for joints of a manipulation arm mainly includes an inner-layer stator (10), an inner-layer mover (20), an outer-layer mover...
8587162 Actuator and electric toothbrush utilizing same  
Disclosed is an actuator that realizes reciprocal rotational motion of an electric toothbrush, for example, without utilizing a drive transmission mechanism that is separate from the drive source....
8581465 Generator  
A generator comprises: a stator plate having a first fixed permanent magnet including a plurality of magnets on one side and a second fixed permanent magnet including a plurality of magnets on the...
8575817 Axial air gap machine having stator and rotor discs formed of multiple detachable segments  
Rotor and stator segments for a generator and motor apparatus are provided. The apparatus includes: a pair of parallel, spaced apart stator segments, each stator segment comprising a stator...
8575806 Power generating structure with dual array of magnetic fields  
A power generating structure comprises a front magnetic disc, a rear magnetic disc, and a coil disc disposed between the front and the rear magnetic discs. The coil disc is provided with a...
8562471 Electric motor assembly with movable rotor segments to reduce back electromotive force  
An electric motor assembly includes a rotor hub, and a rotor supported on the rotor hub. The rotor hub has first and second hub portions, and the rotor has first and second annular rotor segments...
8558486 D. c. Charged particle accelerator, a method of accelerating charged particles using d. c. voltages and a high voltage power supply apparatus for use therewith  
A d.c. charged particle accelerator comprises accelerator electrodes separated by insulating spacers defining acceleration gaps between adjacent pairs of electrodes. Individually regulated gap...
8546981 Actuator  
An actuator is provided, which includes a main shaft having a first shaft portion for generating a magnetic field in a linear direction and a second shaft portion for generating a magnetic field...
8519587 Angular indexing apparatus for machine tool  
An angular indexing apparatus for a machine tool includes a rotating shaft to which a rotationally driven member is secured; a housing, surrounding the outer periphery of the rotating shaft and...
8492946 Device for mounting a resolver in an electric machine  
An electric machine with a resolver for a system for autocontrol of the machine includes a machine stator, a machine rotor mounted for rotation in the stator, the rotor being mounted on a shaft,...
8488262 Lens driving device  
In a lens driving device, magnetic attraction plates that are magnetic bodies are disposed on a fixed frame at both ends of a movement region of a movable unit. Therefore, when the movable unit...
8482243 High acceleration rotary actuator  
A high acceleration rotary actuator motor assembly is provided comprising a plurality of phase motor elements provided in tandem on a shaft, each phase element including a rotor carrying magnets...
8476798 Tandem electric machine arrangement  
The tandem electric machine arrangement comprises an outside rotor having two axially spaced-apart sets of circumferentially-disposed permanent magnets. It also comprises an inside stator having...
8476799 Pulsed multi-rotor constant air gap motor cluster  
Electric motor cluster consisting of several stator sections each possessing a minimum of two salient pole projections, wound with power windings, and each section containing a single rotor. Each...
8471425 Rotor-stator structures including boost magnet structures for magnetic regions having angled confronting surfaces in rotor assemblies  
Various embodiments relate generally to electrodynamic machines and the like, and more particularly, to rotor assemblies and rotor-stator structures for electrodynamic machines, including, but not...
8461736 Electric motor for operating a shutter element or solar protection element in a building  
An electric motor (100) for operating a shutter or solar protection element in a building, comprising at least two phases (10; 20, 30; 50, 60) and a magnetized rotor (16; 40; 70) common to both...