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US20100085005 ELECTRIC MOTOR  
A multi-phase electric motor comprises a stator comprising a plurality of wire coils surrounding a non-magnetizable core; a rotor with permanent magnets embedded therein, the rotor being disposed...
US20060055266 Sintered ring magnet  
A sintered ring magnet (10) is produced through processes of magnetically orienting magnetic powder by applying a magnetic field, pressing the magnetic powder and sintering a ring-shaped powder...
US20050184611 Permanent magnet motor  
A rotor for a permanent magnet motor includes a rotor body and a plurality of permanent magnets carried by the rotor body. The rotor body has an outside rotor surface with a plurality of dovetail...
US20120248917 STATOR AND ROTOR-STATOR STRUCTURES FOR ELECTRODYNAMIC MACHINES  
Embodiments of the invention relate generally to electric motors, alternators, generators and the like, and more particularly, to stator structures and rotor-stator structures for motors that can...
US20050093390 Rotor, method of manufacturing the same and rotary machine  
A rotor has magnets segmented in a circumferential direction of a periphery of a shaft, wherein magnetizing directions of the segmented magnets continuously vary, and a non-magnetic material or a...
US20100264770 PERMANENT-MAGNET SYNCHRONOUS MACHINE WITH SUPPRESSION MEANS FOR IMPROVING THE TORQUE RIPPLE  
A permanent-magnet synchronous machine for suppressing harmonics includes a stator and a rotor with permanent magnets. Each permanent magnet represents a magnetic pole and is, when viewed in the...
US20070035192 Motor and motor manufacturing method  
The motor of the present invention comprises; a stator, a rotor rotating to the stator and a permanent magnet installed to the rotor, wherein the permanent magnet is a single body and formed...
US20070145846 Magnetic rotary device  
Devices of the invention include a rotor with magnets and a stator with two magnet zones. The end zone of the stator toward which the rotor magnet first approaches has two preferred variants: it...
US20080024018 Rotor for an electric rotary machine, and a method of manufacture  
The present invention relates to a rotor for an electric rotary machine, the rotor comprising a hub having pole pieces placed thereon, and wherein: the pole pieces include a molded portion fitting...
US20070284960 MAGNET FOR A DYNAMOELECTRIC MACHINE, DYNAMOELECTRIC MACHINE AND METHOD  
Disclosed herein is an apparatus relating to a magnet member for a dynamoelectric machine comprising, a first portion of the magnet member made of a first magnetic material and a second portion of...
US20050179337 Axial gap electric rotary machine  
An axial gap electric rotary machine includes a rotor and a stator which face each other with an axial gap therebetween. The rotor includes permanent magnets which are arranged with their magnetic...
US20140354103 MOTOR  
A motor includes a stator including stator cores and coils wound on the stator cores, a rotor disposed at the inside of the stator and rotated by electromagnetic interaction with the stator, and a...
US20090195104 PERMANENT MAGNET SYNCHRONOUS MOTOR  
To obtain a permanent magnet synchronous motor suitable for an electric power steering system, in which the magnet thickness (magnet used amount) can be reduced while securing demagnetization...
US20070080604 ELECTRIC FAN  
An electric fan includes a frame (10) having a central tube (11) extending therefrom, a bearing (30) received in the central tube, a stator (50) mounted around the central tube, and a rotor (70)...
US20130278105 ROTOR ASSEMBLY  
Disclosed herein is a rotor assembly, including: a rotor portion provided with an insertion hole into which a rotating shaft is inserted; and a magnet inserted into an embedded hole radially...
US20140217847 BRUSHLESS PERMANENT MAGNET MOTOR  
A brushless permanent magnet electric motor (10) configured to have high saliency and low cogging torque, comprises a stator (30) having a plurality of stator teeth (36), and a rotor (50) having a...
US20140239765 PERMANENT MAGNET SYNCHRONOUS MOTOR HAVING A LOW DEMAGNETIZATION FACTOR  
To obtain a permanent magnet synchronous motor suitable for an electric power steering system, in which the magnet thickness (magnet used amount) can be reduced while securing demagnetization...
US20160329762 Single-phase Outer-Rotor Motor And Rotor Thereof  
A single-phase outer-rotor motor includes a stator and a rotor surrounding the stator. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke...
US20140265701 ROTARY ELECTRIC MACHINE  
A rotary electric machine includes: a rotor core in which one or more permanent magnets are provided; and a stator core disposed radially opposite to the rotor core, a plurality of slots being...
US20070228861 Electrical Rotary Machine and Electromagnetic Apparatus  
A permanent magnet rotor (FIG. 2) includes a rotor core (41) and permanent magnets (5). The permanent magnet rotor is also formed with grooves (6) in order to reduce mangetic flux leakage.
US20140152139 PERMANENT MAGNET SYNCHRONOUS MOTOR  
Disclosed is a permanent magnet synchronous motor comprising a stator (1) and a rotor (2), wherein the stator (1) is provided thereon with a plurality of wire slots (3) in a circumferential...
US20060049709 Brushless direct current motor with chamfered magnet  
A brushless DC motor with improved configuration of magnets attached to a rotor thereof. The brushless direct current motor includes a stator having coils for inducting magnetic flux according to...
US20160294235 PERMANENT MAGNET TYPE MOTOR  
To obtain a permanent magnet motor capable of reducing a decrease in torque due to demagnetization and increasing torque per unit of magnet weight. When the number of poles of permanent magnets is...
US20130038164 SEQUENTIALLY LAMINATED, RARE EARTH, PERMANENT MAGNETS WITH DIELECTRIC LAYERS REINFORCED BY TRANSITION AND/OR DIFFUSION REACTION LAYERS  
Laminated, rare earth, permanent magnets with one or more dielectric layers, suitable for use in high performance, rotating machines comprising: sequential laminates of permanent magnet layers and...
US20140354119 PERMANENT MAGNET-TYPE ROTATING MACHINE  
Problem The present invention aims to provide a permanent magnet-type rotating machine capable of reducing cogging torque and increasing rotation torque.Means for Solving the ProblemA permanent...
US20120228977 ROTOR-STATOR STRUCTURES WITH AN OUTER ROTOR FOR ELECTRODYNAMIC MACHINES  
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...
US20090250935 ROTOR FOR WIND TURBINE AND ASSEMBLING METHOD THEREOF  
Disclosed is a rotor for a wind turbine, which prevents permanent magnets from being separated from the rotor due to the melting of portions of the permanent magnets bonded to the rotor by a high...
US20140265702 Electric Machine with Skewed Permanent Magnet Arrangement  
A permanent magnet electric machine includes a stator and a rotor opposing the stator. Axial slots are provided in the rotor with a plurality of magnet stacks positioned in the slots. Each of the...
US20140054999 METHOD OF MANUFACTURING AN ELECTRIC MACHINE WITH SEGMENTED PERMANENT MAGNETS  
A method for manufacturing a magnet stack for placement in a core member of a permanent magnet electric machine includes providing a plurality of magnet segments, each of the plurality of magnet...
US20120228979 OUTER ROTOR ASSEMBLIES FOR ELECTRODYNAMIC MACHINES  
Embodiments of various rotor assemblies can include an arrangement of magnetically permeable structures including confronting surfaces oriented at an angle to the centerline, and different subsets...
US20150171680 INTERIOR PERMANENT MAGNET ROTARY ELECTRIC MACHINE  
A field element has permanent magnets embedded in a core and extending in the axial direction parallel to a rotation axis. Both a magnetic pole face of the permanent magnet close to an armature...
US20150091406 PERMANENT MAGNET MOTOR  
A permanent magnet motor includes a P-pole-implanted permanent magnet rotator containing a ferrite magnet in a laminated silicon steel sheet, wherein, at one pole, a U-shaped permanent magnet...
US20130088114 INNER ROTOR-TYPE PERMANENT MAGNET MOTOR  
A motor includes poles P having a remanence Mr of 0.9 T or more, a coercivity HcJ of 0.80 MA/m or more, and a maximum energy product (BH)max of 150 kJ/m3 or more, which sets a center point Pc of...
US20070257575 Synchronous Machine Using the Thirteenth Harmonic  
A permanently-excited synchronous machine (51), comprises a stator (53) and a rotor (55), the stator (53) preferably comprising a three-phase alternating current winding and the rotor (55)...
US20070085435 Electromagnetic motor employing multiple rotors  
An electromagnetic motor employing plural rotors is provided, with each rotor exhibiting a permanent magnetic field. A control module selectively induces magnetic fields in electromagnetic pads...
US20070200446 Electrical machine  
An electrical machine includes at least one permanently excited rotor and/or stator, a magnetic field for operating the electrical machine being able to be generated, using a plurality of...
US20160329789 Single-phase Outer-rotor Motor And Rotor Thereof  
A single-phase outer-rotor motor includes a stator and a rotor surrounding the stator. The rotor includes a housing and a plurality of permanent magnets affixed to an inside of the housing. The...
US20150270747 SYSTEM AND METHOD FOR CONTROLLING MULTIPHASE ELECTRIC MOTORS  
A multiphase electric motor for a down-hole electrical submersible pump having a rotor having a first set of rotor voids filled or partially filled with permanent magnetic material. The electric...
US20100102663 ELECTRICAL MACHINE  
The present invention relates to an electrical machine having a rotor, a stator, a rotating-field production device, and a pole-field production device. The rotor can rotate about a rotation axis...
US20120025655 MOTOR ROTOR AND MOTOR HAVING THE MOTOR ROTOR  
A motor rotor includes an annular body and a magnetic body installed on an inner lateral surface of the annular body. The magnetic body has a first curved surface and a second curved surface...
US20080211322 Multipolar, Linear or Rotating Synchronous Direct Drive Motor  
The invention relates to a multipolar, linear or rotating synchronous direct drive motor which comprises a primary part and a secondary part. The primary part comprises a yoke and a plurality of...
US20170070111 Interior Permanent Magnet Rotor and Method for Manufacturing the Same  
An interior permanent magnet rotor restrains demagnetization of permanent magnets embedded in a core. Each permanent magnet is formed by joining a first portion and a second portion at a...
US20130134819 RING SHAPED RUBBER MAGNET AND SPINDLE MOTOR HAVING THE SAME  
Disclosed herein is a ring shaped rubber magnet for a spindle motor formed by coupling one surface and the other surface of a sheet shaped rubber magnet to each other, wherein one surface of the...
US20090134731 MAGNET TYPE SYNCHRONOUS MACHINE  
In a SPM synchronous motor has a rotor and a stator, a permanent magnet is divided to magnet parts magnetized in a diameter direction of the rotor and serve as rotor magnetic poles. The rotor...
US20130169100 PERMANENT MAGNET MOTOR AND ROTOR CORE THEREOF  
A permanent magnet (PM) motor and a rotor core thereof are provided. The PM motor includes a rotor core and a stator. The stator is disposed around the rotor core, and the rotor core is disposed...
US20160329794 SINGLE-PHASE OUTER-ROTOR MOTOR AND STATOR THEREOF  
A single-phase outer-rotor motor includes a stator and a rotor surrounding the stator. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke...
US20130342067 ROTOR OF MOTOR  
Disclosed is a rotor of a motor including: a cup-shaped rotor housing having a side wall portion formed along the outer peripheral surface thereof; a rotor core disposed inside the side wall...
US20130293037 ROTATING ELECTRIC MACHINE  
The disclosed is a rotating electric machine, comprising a magnetic iron stator and a surface permanent magnet type rotor, wherein a wire-winding axis and a rotating axial core of the stator cross...
US20130207500 THREE-PHASE ALTERNATING CURRENT PERMANENT MAGNET MOTOR  
A three-phase PMAC motor comprises a rotor and a stator. The rotor includes a rotor iron core, a plurality of rotor teeth, a plurality of rotor slots each formed between two adjacent rotor teeth,...
US20080203837 Ceiling fan D. C. motor  
A ceiling fan D.C. motor includes a stator and a rotor fitted around the outer circumference of the stator. The rotor is composed of a holder, annular base, a plurality of permanent magnets and a...

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