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8183726 |
Electric motor assist bicyle
Methods, systems and apparatus for an electric motor assist bicycle having a hub motor mounted to the front or rear hub to provide electric motor assist, and to function as a generator to charge...
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8183729 |
Electrically powered device
The electrically powered device is provided. The electrically powered device includes: multiple stators structured to respectively have electromagnetic coils and position sensors; a shaft fastened...
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8183731 |
Electro-motive machine using Halbach array and electrons trapped in electromagnetic providing current
A Halbach array is radially disposed in an environment optimized for efficiency and controlled for efficient generation and use of power in order to generate, establish, and maintain a desired...
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8179016 |
Motor and compressor
A motor includes a rotating shaft, a rotor fixed to the rotating shaft and first and second stators facing each other on opposite axial sides of the rotor with a gap in between. Each of the first...
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8178992 |
Axial flux alternator with air gap maintaining arrangement
Axial flux alternator for a wind turbine arrangement includes at least one magnetic disk including magnets and at least one coil disk including electromagnetic assemblies. One or both disks are...
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8154161 |
Miniature motor
A miniature motor includes a substrate having a pivotal portion. A coil unit and a detection element are provided around the pivotal portion. A rotor is rotatably mounted to the pivotal portion and...
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8154165 |
General purpose engine with axial gap type motor/generator
The present invention achieves an improvement in the power generation capacity of a general purpose engine provided for a power generation application while realizing reductions in the weight and...
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8148937 |
Alternating-current motor control apparatus
When a rectangular wave voltage control mode is selected, a control apparatus estimates the output torque of an alternating-current motor based on the outputs of a current sensor and a rotation...
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8143757 |
General purpose engine with axial gap type motor/generator
The present invention achieves reductions in the weight and size of a general purpose engine provided for a power generation application. An optional external apparatus can be attached to one shaft...
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8115361 |
Coil assembly for electrical rotating machine, stator for electrical rotating machine, and electrical rotating machine
The torque characteristic is improved using a magnetic flux efficiently, and an eddy-current loss generated in a coil is reduced. Moreover, a loss is suppressed even if a metal member having a high...
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8115364 |
Permanent magnet generator and wind power generator having a multi-stage rotor and stator
A permanent magnet power generator which, when used at an electric power generating facility such as a wind power plant, etc., would not be bulky and would not impede wind capture by a wind...
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8110955 |
Magnetic bearing device of a rotor shaft against a stator with rotor disc elements, which engage inside one another, and stator disc elements
The magnetic bearing device contains soft-magnetic rotor disc elements, which radially engage inside one another, and soft-magnetic stator disc elements. These elements are, on their sides facing...
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8106563 |
Polyphasic multi-coil electric device
A polyphasic multi-coil generator includes a driveshaft, at least first and second rotors rigidly mounted on the driveshaft so as to simultaneously synchronously rotate with rotation of the...
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8102095 |
Electrical direct drive for a roller
An electrical roller drive which can be connected to a roller includes a disk-type motor with a secondary part in the form of a disk and with a primary part in the form of a disk.
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8072101 |
Base for a heat-dissipating fan motor
A base for a heat-dissipating fan motor includes a plate member made of metal, a coupling barrel made of plastic, and an outer case made of plastic. The plate member is formed with at least one...
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8049389 |
Axial gap motor
An axial gap motor includes a rotor and a stator, and the rotor includes within a rotor frame a plurality of main magnet pieces which are disposed in a circumferential direction in such a manner...
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8040011 |
Generator and magnetic flux conducting unit
The invention relates to a generator, to a magnetic flux conducting unit for a generator, and to a power generation machine comprising such a generator. In an embodiment of the invention, a...
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8040012 |
Electrical machinery incorporating double helix coil designs for superconducting and resistive windings
An alternating current machine which generates a magnetic field or induces a voltage. In one embodiment the machine includes a stator and a rotor positioned about an axis. The stator includes three...
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8030816 |
Motor and motor control device
A rotor (11) is provided with: a main permanent magnet mounting layer (21) having a plurality of main permanent magnets (21a) mounted thereon; a first sub permanent magnet mounting layer (22)...
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8026626 |
Axial flux alternator with air gap maintaining arrangement
Axial flux alternator for a wind turbine arrangement includes at least one magnetic disk including magnets and at least one coil disk including electromagnetic assemblies. One or both disks are...
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8022593 |
Electrical machine
An axial flux electrical machine is provided. The machine includes a plurality of rotors, each sandwiched between a respective pair of stator parts. The plurality of rotors, together with their...
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8018116 |
Electric motor of parallel cycles
A motor arrangement between the movable body and the commutation system comprising movable body coils assembling, wherein said movable body coils assembling are energized for short periods of time...
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8013700 |
Field element
The present invention relates to a field element which reduces a harmonic component of a magnetic flux density. Permanent magnets (20) are in contact with first magnetic plates (1, 3) in a...
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8013482 |
Electric motor with cooling structure
An electric motor (10) includes a stationary shaft-shaped central portion (100) extending through respective central portions of an inner rotor (301), an outer rotor (302), and a stator (200), and...
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8008817 |
Wheel-mounted electrical machine
A hybrid-electric vehicle is provided having a respective electrical machine in each wheel thereof. Each electrical machine is of the axial-flux type, having a rotor sandwiched axially between two...
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8004127 |
Rotary reluctance motor
A rotary reluctance motor includes a set of inner disks each having an inner diameter root, an outer diameter free end, and a plurality of alternating high permeability teeth and low permeability...
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7990011 |
Rotor for electric motor
A rotor for an electric motor (10) includes a magnetic assembly (12) formed into a ring-shaped plate form, a rotor disc (11) for holding an inner periphery of the magnet assembly, and an outer...
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7990009 |
Electric machine
An electrical machine which has a moving part and a stationary part. The moving part is in the form of an inner rotor without windings, and the rotor which has at least two magnetic conductors,...
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7977843 |
Axial gap type motor
The axial gap type motor according to the present invention is provided with: a rotor and a first stator and a second stator, wherein the first and second stators includes an annular back yoke and...
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7973446 |
Electrical devices having tape wound core laminate rotor or stator elements
Electrical output generating devices and driven electrical devices having tape wound core laminate rotor or stator elements. The tape wound core portions enhance magnetic flux and may be shaped and...
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7973443 |
Magnetic field element
A magnetic field element includes magnetic field portions and a coupling portion and is rotatable on a rotation axis along a given direction. Each magnetic field portion includes a magnet and...
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7960884 |
Axial gap type rotating machine
An axial gap rotating machine rigidly fixing permanent magnets without reducing magnetic flux and having a high output has: a housing; a rotating shaft rotatably supported in the housing; two...
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7939983 |
Generator having first and second windings with same-direction electromotive forces
There is provided a generator which produces electromotive forces in the same direction on all windings to prevent occurrence of leakage magnetic fields of the windings and lowering of the...
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7933554 |
Systems and methods for short range wireless communication
A magnetic induction data transmission network comprising a master hub, at least one sensor node communicatively coupled to the master hub and a magnetic induction coil preferably adapted to be...
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7923878 |
Axial gap coreless motor and positioning unit
An axial gap coreless motor includes a stator including a stator yoke having a surface and being composed of a plurality of laminated layers of silicon steel sheets secured together, a wiring...
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7911107 |
AC electric motor
A motor is provided, which includes: a rotor having rotor pole groups, in which N-poles and S-poles are alternately arranged in the circumferential direction; an N number (N is a positive integer)...
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7906886 |
Axial motor
The present invention relates to an axial motor, and more specifically, to an axial motor which has a simple structure and is easily assembled by inserting and holding core teeth in core teeth...
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7888839 |
Commercial low cost, high efficiency motor-generator
A motor-generator includes a rotor that rotates about an axis of rotation, and a stator that is stationary and magnetically interacts with the rotor. The rotor is constructed of two spaced apart...
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7884523 |
Brushless DC motor
A brushless DC motor includes a base, a stator, a rotor, and a leak flux absorber. The base couples with the rotor. The stator has a coil module and is mounted on the base. The rotor has a shaft...
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7884563 |
Motor and drive control system thereof
Provided is a motor having a magnetic polar unit in which a permanent magnetic polar array having arranged therein alternately a plurality of permanent magnetic polar elements in alternate opposite...
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7872393 |
Axial gap type superconducting motor
Stators 12 and 13 are disposed with required air gaps in an axial direction of a rotor 11 so as to face each other, a plurality of field bodies 15 or permanent magnets 33 are disposed in the rotor...
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7868510 |
High-efficiency wheel-motor utilizing molded magnetic flux channels with transverse-flux stator
A motor including an outside rotor having a rotor disc with plural magnets alternating polarities flush mounted in the disc, an inside stator assembly with a ring of pole pieces forming a channel...
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7868514 |
Plural rotor permanent magnet electric motor with coincident electromagnetic axis
An electric motor having a first rotor, a second rotor and a third rotor, a first permanent magnet, a second permanent magnet and a third permanent magnet, a first stator and a second stator, a...
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7863784 |
Axial flux permanent magnet machines
An electromechanical machine having a stator and a rotor, the stator including at least one stator module of N toroid shaped electromagnets, the electromagnets arranged along an arc a predetermined...
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7863792 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Motor and motor control device
A rotor (11) is provided with: a main permanent magnet mounting layer (21) having a plurality of main permanent magnets (21a) mounted thereon; a first sub permanent magnet mounting layer (22)...
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7834503 |
Immersed windings, monopole field, electromagnetic rotating machine
A rotating electromagnetic apparatus has a stator frame supporting spaced apart pairs of permanent magnets which are arranged with like magnetic poles mutually facing. A toroidally shaped rotor...
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7825558 |
Fan with active magnetic bearing
A fan (100) has an electronically commutated drive motor (ECM 52) with a stator (50) connected to a bearing tube (54) and a rotor (22) on a shaft (34). The shaft (34) is journaled in the tube (54)...
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7821168 |
Axial gap dynamo electric machine with magnetic bearing
An axial gap electric dynamo machine has a horizontally disposed rotor disk that is stabilized at its periphery by a plurality of permanent magnets connected to a ferromagnetic bearing plate that...
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7812500 |
Generator / electric motor
A generator and/or electrical motor features elongated electromagnets which extend coaxially, not radially, about the axis of rotation of the axle, thus allowing multiple rings of magnets to be...
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7808142 |
Multivariable generator and method of using the same
A generator device for generating electrical energy includes a rotor having a first set of even-numbered of magnetic sources distributed along a first radius of the rotor, and a first pair of...
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