Matches 1 - 20 out of 20
Match Document Document Title
7102262 Anchoring system for injection molded magnets on a flux ring or motor housing  
A power tool includes a flux ring with an annular member. At least one molded magnet is received on the annular member. An anchor is on the annular member to retain the at least one magnet on the...
6891297 Electrical-steel-sheet formed body for rotor core, rotor, rotary electric machine and related method  
An electrical-steel-sheet formed body is provided with an opening portion into which a permanent magnet is inserted, and an outer-peripheral hardened portion formed on the electrical-steel-sheet...
6812608 Direct current motor having field magnets formed by injection molding synthetic resin, with which magnetic particles are mixed, to the inner periphery of the stator core  
Field magnets are attached to an inner periphery of a stator core, which defines a rotor through hole. The stator core has a plurality of recesses open to the rotor through hole. Each recess faces...
6777842 Doubly salient machine with permanent magnets in stator teeth  
Permanent magnet machines including doubly salient machines having one or more permanent magnets located at least partly and preferably entirely within the stator teeth, thereby avoiding weakening...
6731033 Motor-driven system with stator provided with inductors  
There is provided a motor-driven system which realizes an optimum driving mode for an electric automobile, a robot carrier car, a drum of a copying machine, etc., and a motor-driven system having a...
6724114 Doubly salient machine with angled permanent magnets in stator teeth  
Permanent magnet machines including doubly salient machines having one or more permanent magnets located at least partly and preferably entirely within the stator teeth, thereby avoiding weakening...
6707209 Reduced cogging torque permanent magnet electric machine with rotor having offset sections  
A permanent magnet electric machine with reduced cogging torque includes a plurality of axial rotor sections that are defined on a radially outer surface of a rotor. The axial rotor sections...
5920139 Magnet motor stator  
A magnet motor stator where a magnet of a pole of a stator includes multiple magnets. Each magnet can be flat and made from rare-earth materials. It is thus possible to manufacture these magnet...
5672925 Doubly salient variable reluctance machine with stationary permanent magnets or auxiliary field windings  
A new class of doubly-salient machines which incorporates a specific stator/rotor pole arrangement to provide a linearly increasing flux linkage over the entire area of pole overlap, and either (1)...
4970423 Stepper motor with a rotor teeth sensor  
A stepping motor having a non-touch rotation sensor includes rotor core 5 having magnetic pole teeth of a uniform angular pitch, a stator core 1 having plural magnetic pole teeth groups having...
4516046 Continuous current electric machine with cylindrical air gap and permanent magnet pole piece  
A continuous current electric machine with a cylindrical air gap and with permanent magnet stator excitation in which stacked sheets forming the stator of the continuous current machine have closed...
4514654 Small size electric motor  
A small-size electromotor includes a stator and a rotor enclosed by a housing. In order to reduce weight and moment of inertia of the rotor and stator in the electric motor the rotor and the stator...
4383192 Electromechanical actuator  
An improved permanent magnet DC motor designed to accurately support inner pole pieces between end bells to obviate the need for grinding the bore of the stator assembly, magnets and outer magnet...
4371799 Permanent magnet field pole for a direct current dynamoelectric machine  
A direct current dynamoelectric machine characterized by having a plurality of salient field poles each comprising a rigid laminated base member, a relatively more flexible laminated face member,...
4150312 Permanent magnet stator D.C. dynamoelectric machine  
A disclosed process includes arranging field yoke segments, pole face segments, and one or more pieces of ceramic magnet material so that the yoke segments and pole face segments can be relied upon...
4141137 Method of making a permanent magnet field pole for a direct current dynamoelectric machine  
In the method of the invention a permanent magnet field pole is manufactured by welding a plurality of preformed base member laminae to thereby form a rigid pole base member. A plurality of...
3999107 Self-starting synchronous motor  
An electro-magnetic synchronous motor has an E-shaped stator linear or partially wrapped around an axis, the legs being the pole shoes. The middle leg includes a permanent magnet and one or both...
3979616 Unipolar rotary step motor  
A unipolar rotary step motor having a polarized rotor which turns step-by-step in response to the magnetic field of a control coil as the coil is periodically pulsed by spaced unidirectional...
3932929 Method of making a sectioned stator for a dynamoelectric machine  
A method of manufacturing rotating electric machines comprising a stator and a rotor consisting of the steps of forming the stator in at least two sections by permanently moulding in a plastic mass...
3671787 LAMINATED DYNAMOELECTRIC MACHINE HAVING NONMAGNETIC LAMINA FOR STRUCTURAL SUPPORT  
A permanent magnet dynamoelectric machine whose housing is formed by a plurality of continuous nonmagnetic lamina which support a plurality of discontinuous magnetic lamina in cooperative relation...
Matches 1 - 20 out of 20