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Match Document Document Title
7619345 Stator coil assembly  
A stator coil assembly includes a cylindrical support tube with first and second pluralities of stator coils disposed radially around the support tube. Each stator coil includes first, second,...
7592736 Permanent magnet electric generator with rotor circumferentially encircling stator  
A permanent magnet electric generator includes a housing, and a stator and a rotor assembly disposed inside the housing. The rotor assembly has annular inner and outer rings concentric with the...
7592730 Hybrid induction motor  
A hybrid induction motor includes a motor casing; a rotational shaft rotatably coupled with the motor casing; an induction rotor rotated by being integrally coupled with the rotational shaft and...
7569970 Electric motor with multiple rotors in a concentrically circular arrangement around a rotation axis of the electric motor  
An electric motor comprising an inner periphery side rotor provided with inner peripheral permanent magnets with unlike poles, which are disposed alternately along a circumferential direction of...
7560845 Rotor for a switched reluctance machine  
A rotor for a switched reluctance machine has its main magnetic circuit provided by two mouldings of soft magnetic composite. The mouldings are substantially identical and fit together to form a...
7557486 Dual rotor type motor  
A dual rotor-type motor includes a stator located between inner and outer rotors. The stator includes a core having first and second surfaces that face magnets on respective circumferential...
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...
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...
7548008 Electrical machine with double-sided lamination stack  
The machine includes a rotor with an inner rotor core and an outer rotor core and a double-sided stator with an inner stator side and an outer stator side. The double-sided stator is concentrically...
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...
7535143 Electromagnetic coupler  
An electromagnetic coupler for a motor vehicle. The coupler includes a first electric machine having an axis and including a first stator bearing a first coil, an input rotor and a first part of an...
7531932 Power generating system  
A small power generating system includes a turbine driven by a fluid, a small high-speed rotation power generator including a permanent magnet rotor having a permanent magnet and rotated together...
7525230 Air core motor-generator  
A brushless motor-generator includes a rotor having a ferromagnetic tube with radially polarized, alternating polarity permanent magnet poles, and an air core armature that magnetically exerts...
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...
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...
7511395 Hybrid induction motor  
A hybrid induction motor comprises a stator fixedly installed in a casing, an induction rotor rotatably inserted into a center of the stator and having a shaft at a center thereof, a first...
7501733 Electric machine  
A two-phase electric motor includes first and second coil groups and a magnet group. In the magnet group, N poles and S poles are disposed alternatively opposite the first and second coil groups....
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...
7453180 Rotary disk energy storage and pulse power supply  
A system for generating an electrical current in a circuit includes a rotor, a stator and a motor for rotating the rotor about a rotation axis. A plurality of permanent magnets are mounted on the...
7443642 Electric motor control  
A method and apparatus is disclosed for controlling a system comprising at least one electric motor. The system includes aspects which permit, among other things, electromagnetically disconnecting...
7443074 Apparatus for driving drum of washing machine  
A radial core type double rotor brushless direct-current motor is provided in which a double rotor structure is employed with inner and outer rotors which are doubly disposed and thus a stator core...
7443066 Methods and apparatus for cooling wind turbine generators  
A wind turbine generator includes a stator having a core and a plurality of stator windings circumferentially spaced about a generator longitudinal axis. A rotor is rotatable about the generator...
7439644 Hybrid induction motor  
A hybrid induction motor comprises a stator fixedly installed in a casing, an induction rotor rotatably inserted into a center of the stator and having a shaft at a center thereof, a first...
7411330 Rotating electric machine  
A rotating electric machine is comprised of a stator having a stator core and a stator coil wound around the stator core, the stator core having at least two tip portions, and a rotor having a...
7402934 High performance air core motor-generator winding  
A motor-generator for converting between electrical and rotational energy includes a rotor mounted for rotation about an axis of rotation relative to a stationary a stator that magnetically...
7400077 Electric motor having multiple armatures  
An electric motor that includes a housing, a rotatable axle, a first field armature, which is disposed substantially around the axle and secured to the axle, and which includes a plurality of first...
7372182 Axial gap alternator associated with a flywheel  
An axial gap alternator comprises a first carrier associated with or secured to an output shaft of an internal combustion engine. A first carrier carries a first set of magnets arranged radially...
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...
7356906 Brushless direct-current motor of radial core type having a structure of double rotors and method for making the same  
A method of manufacturing a radial core type double rotor brushless direct-current motor is provided. A double rotor structure is employed with inner and outer rotors which are doubly disposed such...
7332846 Damping device  
A damping device for damping speed irregularities of a rotating shaft includes an armature having at least one armature part made of a non-ferromagnetic, electrically conductive material. An...
7302749 Method of making a two-layer lap winding for a multiphase electrical machine  
The method of making a two-layer lap winding ( 12 ) for a multiphase electrical machine includes the steps of winding a first coil unit ( 20 ) of a first phase winding ( 14 ) around a winding bar (...
7262536 Gearless wheel motor drive system  
Methods and apparatus are provided for an electric vehicle embodying an axial flux traction motor directly coupled to a wheel thereof. The fraction motor includes a stator having coils for...
7259493 Stator of two rotor single stator type electric motor  
A stator for a two rotor single stator type electric motor is described. The electric motor has inner and outer rotors that are rotated independently within and around a stator upon application of...
7256524 Axial gap electric motor  
First and second stators are arranged on mutually spaced positions of an imaginary common axis, and first and second rotors are coaxially and rotatably arranged on mutually spaced positions of the...
7233093 Electric rotating machine  
An electric rotating machine, including a stator including circumferentially arranged stator teeth, inner and outer rotors disposed coaxially with the stator inside and outside thereof, an inner...
7230363 Low profile generator configuration  
One embodiment of the invention relates to a low profile electric generator having a short axial length. A cylindrical rotor body defines an interior cavity and is coupled to a driveshaft along the...
7225284 Increasing the quantity of I/O decode ranges using SMI traps  
A method of increasing the quantity of input/output (I/O) decode ranges using system management interrupts (SMI) traps is disclosed. In one aspect, the present disclosure teaches a method of...
7166950 Structure of driving unit in drum type washing machine  
Structure of driving unit in a drum type washing machine including a tub mounted inside of a cabinet, a drum mounted inside of the tub, a shaft connected to the drum mounted inside of the tub for...
7166940 External rotor motor  
An external rotor motor is disclosed, which features a stator ( 11 ) and a rotor ( 13 ) surrounding the stator ( 11 ) while leaving an air gap. A damper ( 16 ) made of an elastic material is...
7164220 Stator pole structure for an electrical machine  
An electrical machine, such as a transverse flux motor, incorporates a stator core assembly 1 . The stator core assembly 1 comprises a stator frame 4 upon which stator cores 2,3 are located...
7164219 Electromechanical converter  
An electromechanical converter, in particular an electric variable transmission, is provided with a primary shaft ( 5 ) having a rotor ( 8 ) mounted thereon, a secondary shaft ( 7 ) having an...
7138742 Rotating machine  
In a rotating machine, a plurality of laminated electromagnetic steel sheets constitutes at least one of a stator and a rotor and a plurality of permanent joining portions to unit each of the...
7134180 Method for providing slip energy control in permanent magnet electrical machines  
An electric machine ( 40 ) has a stator ( 43 ), a permanent magnet rotor ( 38 ) with permanent magnets ( 39 ) and a magnetic coupling uncluttered rotor ( 46 ) for inducing a slip energy current in...
7129602 Method for cooling a transverse flow synchronous machine and transverse flow synchronous machine  
A method and apparatus for cooling a transverse flow synchronous machine is provided which uses a coolant that is entrained by the rotor rotation during operation of the synchronous machine and is...
7119468 Electric motor  
An electric motor intended for driving transport vehicles without a reduction gear is described. The electric motor can have an annular magnetic conductor of the stator with permanent magnets...
7112901 Construction and method of an electric motor drive  
In an electric motor drive, a asynchronous motor, such as drum motor, has a stator ( 2 ) mounted on a non-rotatory shaft ( 1 ) and has rotatory, like by means of bearings ( 3 ), connected rotor ( 4...
7109629 Rotor disc for an electrical machine and a retainer  
A rotor disc for an electrical machine is disclosed. The rotor disc comprises a series of magnetisable members arranged in a circumferential series on a surface thereof and against peripheral...
7105979 Compact heteropolar hybrid alternator-motor  
A brushless hybrid electrical machine for converting between electrical and mechanical energy has a rotor supported for rotation about an axis of rotation relative to a juxtaposed stator that is...
7098566 Axial gap electrical machine  
An axial gap electrical machine employs unique architecture to (1) overcome critical limits in the air gap at high speeds, while maintaining high torque performance at low speeds, while...
7095155 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...
Matches 1 - 50 out of 445 1 2 3 4 5 6 7 8 9 >