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7629724 |
Axial air-gap electronic motor
An axial air-gap electronic motor is arranged such that a teeth surface of a stator and a magnet surface of a rotor are arranged opposedly with a predetermined gap therebetween along an axis line...
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7618241 |
Fuel pump
A fuel pump has a housing defining a cavity. A rotor of an electric motor is carried in the cavity for rotation about a drive axis. An annular pump impeller is supported in the cavity separate from...
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7608969 |
Stator for rotary electric machine
A stator for a rotary electric machine, including a plurality of stator cores arranged in a circumferentially spaced relation about a central axis of the stator, and a molded resin filled between...
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7608964 |
Motor, blower, compressor, and air conditioner
It is an object of the present invention to provide techniques for improving efficiency and torque of a motor while achieving thinning of the motor. In a brushless DC motor, a rotor includes a...
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7598647 |
Inductor-type synchronous machine
An inductor-type synchronous machine includes field stators having field elements by which an N-pole and an S-pole are concentrically formed, rotors to which a rotating shaft is fixed and has...
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7595575 |
Motor/generator to reduce cogging torque
The disclosure is directed to a motor/generator including a magnetic circuit that is created between a rotor and stator through a first air gap and a second air gap so that a magnetic field...
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7592733 |
Rotary electric machine and electric wheelchair mounted with rotary electric machine
A rotary electric machine includes a stator including a plurality of teeth which are each wound up by a coil and a stator yoke core connecting the respective teeth, and a rotor provided with...
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7586232 |
Flat radially interacting electric drive and a method of the manufacturing the same
A flat radially interacting electric drive comprises a flat stator, an axle and a magnetized flat rotor. The flat stator comprises a stator core made of silicon steel and placed within two layers...
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7579744 |
Rotor structure of an axial gap rotating electrical device
An axial gap rotating electrical device includes a stator and a rotor. The stator has a stator core and a stator coil. The rotor is disposed in an axial direction with respect to the stator. The...
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7573176 |
Dynamo-electric machine
In a dynamo-electric machine having two rotors, at least one of the rotors is constructed to have a first magnetic path that extends in a circumferential direction of the rotor, at least one of the...
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7573173 |
Apparatus for axial magnetic field electric motor
Apparatuses, circuits, and methods for driving an axial field electric motor, and systems using the same. The electric motor generally comprises a fixed magnet assembly having a plurality of fixed...
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7560836 |
Driving device and light amount adjusting device
A light amount adjusting device mounted with a driving device which can have a reduced size in the direction of thickness. In this controller, a magnet is formed into a hollow circular disk shape...
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7557482 |
Axial-flux electric machine
An axial-flux electric machine includes a stator and a rotor. The rotor may be rotatable about a rotor rotation axis, and at least a portion of the stator may face at least a portion of the rotor...
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7554241 |
Three-gapped motor with outer rotor and stationary shaft
A motor with three gaps produces higher torque than existing one or two gap motors. The motor uses both one radial and two axial gaps to produce torque. A single stator is provided with an...
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7554226 |
Axial air gap type electric motor
A magnetic pre-pressurizing section for pre-pressurizing the inner ring of the bearing in the axial direction by a difference of magnetic forces of permanent magnets of the two rotors is arranged....
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7550894 |
Rotary electrical machine
A rotary electrical machine has a mechanism capable of varying an output characteristic, without increasing mechanical loss, or without consuming the electric power that does not contribute to...
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7541709 |
Ultra-thin motor structure
An ultra-thin motor structure including a stator assembly and a rotator assembly is provided. The stator assembly includes at least one bearing with a bore, a base, and a winding plate. The base...
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7535145 |
Axial air gap-type electric motor
A rotor 31 has permanent magnets 31 a disposed on a surface of a disk-shaped back yoke 31 b in such a manner that long sides of each permanent magnet extend in a radial direction and that a...
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7531930 |
Energy producing magnetic converter
An energy producing magnetic converter is provided that outputs both electrical and mechanical energy. The converter includes a controller assembly rotatably secured between a plurality of field...
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7528521 |
Rotary electric machine and electric wheelchair mounted with rotary electric machine
A rotary electric machine comprises a stator including a plurality of teeth which are wound up by coils and a stator yoke core connecting the respective teeth, and a rotor provided with magnets...
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7525228 |
Three-phase opposite rotating motor and fan
A three-phase opposite rotating motor of a fan comprises a stator having a three-phase coil set without a core, a first rotor and a second rotor. The number of the poles of the first rotor is...
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7521834 |
Poly-phase electromagnetic device having an improved conductor winding arrangement
A poly-phase electromagnetic device having n winding phases (n>2) wherein each phase is made from a single conductor strand wound in a lap form configuration. The windings are configured such...
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7518282 |
Rotor, vibration motor having the same, and fabrication method thereof
A rotor, vibration motor having the same, and fabrication method thereof are disclosed. A rotor according to an embodiment of the invention comprises a first layer on which are formed a plurality...
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7514839 |
Stator with a rotary current winding, brushless direct current machine having a stator, shaped part for winding guidance for a stator with a rotary current winding, and winding method for producing a stator with a rotary current winding
A method of producing a stator with a rotary current winding, having a first and second face end. On the face end, at least one shaped part with struts for winding guidance is provided. A brushless...
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7514838 |
Fan unit using motor equipped with rotor united with fins
A fan unit comprises an electric rotary machine (e.g. electric motor) having a rotor and a fin structure unified with the rotor. The fan unit further comprises a rotation mechanism for rotating the...
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7514833 |
Axial gap permanent-magnet machine with reluctance poles and PM element covers
An electric machine ( 10 ) has a disk-shaped rotor ( 24 ) disposed in an operating space between two opposing stator assemblies ( 11, 12 ) to provide two axial air gaps ( 15, 16 ). The rotor ( 24 )...
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7493989 |
Elevator suspension arrangement
The invention relates to a suspension arrangement for an elevator, which elevator preferably is an elevator without machine room and in which elevator the hoisting machine ( 4 ) is connected via a...
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7485993 |
Direct current brushless vibration motor
A direct current (DC) brushless vibration motor includes an inductive coil as the stator, and a magnetic element, which has a plurality of coplanar magnetic poles, as the rotor. The inductive coil...
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7485992 |
Armature type electrical generators for self powered cell phones
Self powered cell phones are provided with an armature which is supported to freely oscillate in swinging opposite motions and which includes a wire coil configured to intersect the magnetic flux...
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7482722 |
Brushless generator having coreless assembly
A brushless generator has a high rotation speed, a high usage efficiency, no iron loss and a small mechanical loss while the electric power output of the generator is increased
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7476999 |
Torque producing device
Device ( 100 ) for producing torque, the device including an armature ( 102 ) made of a printed circuit board, at least one winding ( 124 ) formed on the armature in a substantially rectangular...
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7474032 |
Simplified fan device having a thin-type structure with a minimum air gap for reducing an axial thickness
A simplified fan device includes a base plate, a flat-type impeller, a magnet sheet and a shaft member. The base plate includes an axial hole and at least one stator coil arranged thereon. The...
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7471026 |
Brushless electric motor
A brushless electric motor includes a housing with a pair of disc-shaped end plates fixed relative to the housing in a spaced, generally parallel relationship to each other. A pair of bearings are...
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7466049 |
Wheel assembly with electric power generator
A wheel assembly includes a carrier and a wheel mounted adjacent to the carrier for rotation relative to the carrier. A first array of magnets is carried by one of the first side of the wheel and...
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7459822 |
Rotating electric machine having switched or variable reluctance with flux transverse to the axis of rotation
An electric machine, such as a switched reluctance motor (SRM), having one or more transverse flux axes is described. The rotor and stator of the electric machine have more than one phase, not...
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7456541 |
Fan device having an ultra thin-type structure with a minimum air gap for reducing an axial thickness
A fan device includes a base plate, a flat-type impeller, an assembling member, a magnet sheet and a shaft member. The base plate includes an axial hole and at least one stator coil arranged...
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7455501 |
Miniature blower fan
A miniature blower fan includes an axial seat and a shaft extending from a central portion of the axial seat. A plurality of vanes and a magnet are mounted to an outer circumferential wall of the...
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7448383 |
Air assistance apparatus providing fast rise and fall of pressure within one patient's breath
An apparatus to deliver air to a patient through a mask, including an air blower ( 33 ) where the impeller ( 5 ) is rotated by an electromotor including a rotor ( 3 ) and a stator ( 8 ), the stator...
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7446447 |
Magnetic structure and motor employing said magnetic structure, and driver comprising said motor
Provided is a small motor superior in weight/torque balance. A phase stator 10 and B phase stator 12 are disposed to face each other. A rotor is interpositioned between these stators....
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7436137 |
Drive regenerative control system
Provided is a drive regenerative control system of a drivee with a motor superior in torque and weight balance and suitable for miniaturization as the drive source. In a drive regenerative control...
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7432623 |
Brushless electromechanical machine
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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7427845 |
Segmented switched reluctance electric machine with interdigitated disk-type rotor and stator construction
The present invention relates to a unipolar current electrical machine operable as a switched reluctance motor, comprising a motor structure and a control unit. The motor structure comprises a...
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7425772 |
Electric power generating system using ring-shaped generators
Electric power generator system using ring-shaped generators and essentially being formed of turbines and generators, and optionally converging-diverging nozzles. The turbines may optionally have...
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7411325 |
High efficiency combination motor and drive
A brushless permanent magnet motor has a rotor constructed of spaced ferromagnetic backirons and a circumferential array of alternating polarity magnetic poles that drive magnetic flux back and...
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7400069 |
Generator having reciprocating and rotating permanent motor magnets
A generator for producing electric power includes a drive mechanism, such as a drive motor, having a rotor supported for rotation about an axis. A first generator magnet driveable by the rotor...
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7385330 |
Permanent-magnet switched-flux machine
A permanent-magnet switched-flux (PMSF) apparatus comprises a plurality of permanent-magnet switched-flux (PMSF) devices, wherein each of the plurality of PMSF devices comprises a ferromagnetic...
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7382077 |
Electric motor
An electric motor comprises a stator ( 1, 5, 8 ) having an air-gap which extends around an axis and in which a rotating magnetic field is generated, and a rotor ( 11, 12, 13 ) comprising a shaft (...
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7375449 |
Optimized modular electrical machine using permanent magnets
An electrical machine having a magnet assembly with a magnet carrier ring with an even number of permanent magnets mounted in the carrier ring around a circular locus, and a conductor assembly with...
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7356922 |
Method of fabricating a rate gyroscope and accelerometer multisensor
Three magnetic substrates are provided, the first substrate forms the rotor and the other two form the outer stator. A series of spaced concentric grooves and spaced spiral grooves are formed in...
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7355311 |
Rotor of axial gap motor and method of producing same
A rotor of an axial gap motor has a circular rotor core. A circular frame member is put on one axial face of the circular rotor core. The frame member has a plurality of magnet receiving recesses...
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