Patents
Patents for H02K 21 - Synchronous motors having permanent magnet; Synchronous generators having permanent magnet (17,141)
06/2004
06/03/2004WO2004047255A2 Axial flux motor assembly
06/03/2004US20040105232 Cooling fluid pump and electric apparatus, such as personal computer, provided with the pump
06/03/2004US20040104637 High performance brushless motor and drive for an electrical vehicle motorization
06/03/2004US20040104635 Mounting block for electric motor with external rotor
06/03/2004US20040104631 Brushless vibration motor
06/03/2004US20040103695 Outer rotor type motor of washing machine
06/03/2004US20040103520 Method of providing electric power with thermal protection
06/03/2004DE10251647A1 Elektromotor Electric motor
06/02/2004EP1424764A2 Vehicular generator-motor system
06/02/2004EP0996215B1 Generator
06/02/2004CN1501570A A flat rare-earth permanent-magnetic brushless DC machine
06/01/2004US6744164 Motor, electric vehicle and hybrid electric vehicle
05/2004
05/27/2004WO2004045048A1 Slotless rotary electric machine and manufacturing method of coils for such a machine
05/27/2004WO2004045047A2 Permanent magnet rotor with a yoke shape for reducing weight
05/27/2004WO2004043213A1 Food processing apparatus including magnetic drive
05/27/2004US20040101415 Method and a pump apparatus for the generation of an adjustable, substantially constant volume flow of a fluid and a use of this method
05/27/2004US20040100161 Low-profile stepping motor with two coils arranged flush with each other horizontally
05/27/2004US20040100156 Process for the production of a rotor, containing permanent magnets, of a synchronous machine, and rotor produced according to this process
05/27/2004US20040100155 Driving unit
05/27/2004DE10253072A1 Component with coils forming part of e.g. permanent magnet motor drive for vehicle actuator, has carrier with radially-projecting bridges and insertion sections for coils
05/27/2004DE10253071A1 Actuator drive comprising axial field motor and gearing, for use in vehicles, transmits radial forces from shaft into casing via interlocking sections
05/27/2004DE10024907B4 Antriebseinheit Drive unit
05/26/2004EP1421668A1 Unipolar transverse magnetic flux machine
05/26/2004EP1421664A1 Electric motor excited by permanent magnets
05/26/2004CN2618358Y High-efficient rare earth permanent magnetic synchronous motor
05/25/2004US6741003 Permanent magnet rotor
05/25/2004US6741002 Motor having a rotor with interior split-permanent-magnet
05/25/2004US6741001 Spindle motor and bearing assembly
05/25/2004CA2155218C Multi-phase electric machine with offset multi-polar electric pole units
05/21/2004WO2004042900A1 Drive device provided for operating adjusting devices in motor vehicles
05/21/2004WO2004042891A1 Permanent-magnet machine having an axial air gap
05/21/2004WO2004021550A3 A synchronous electrical machine
05/20/2004US20040095037 Low profile motor with internal gear train
05/20/2004US20040095034 Rotor assembly for an electrical machine and P.M. motor comprising such rotor assembly
05/20/2004US20040095033 Rotor assembly for a permanent magnet electrical machine comprising such a rotor assembly
05/20/2004US20040095032 Rotor, manufacturing method of the rotor and motor using the rotor
05/20/2004US20040095031 Micro-electromechanical voltage converter
05/20/2004US20040095030 D.C. motor and winding method for coils thereof
05/20/2004US20040094430 Method and device for forming a dynamic pressure-generating groove in a fluid dynamic pressure bearing
05/19/2004EP1420507A1 Minature motor with permanent magnetic rotor
05/19/2004EP1420506A1 Miniatur motor with permanent magnetic rotor
05/19/2004EP1420500A1 Rotor assembly for an electrical machine
05/19/2004EP1420499A1 Rotor with embedded permanent magnets
05/19/2004EP1419568A1 Electric motor with a high ip-protective system
05/19/2004DE10348401A1 Rotary machine, e.g. motor with permanent magnets, has upper threshold for oblique offset angle set using ratio of offset torque
05/19/2004CN1497818A Permanent magnet slewing motor
05/18/2004US6737783 Sealed motor compressor
05/18/2004US6737782 Electric rotary machine having bobbins with thin-walled extensions of flange
05/18/2004US6737778 Pulley driving system
05/18/2004US6737775 Power generating installation that compises a drive engine and a generator
05/18/2004US6737769 Easy-to-start-structure of a DC brushless motor
05/18/2004US6736616 Centrifugal pump with integrated motor
05/18/2004CA2233707C Integrated magnetic levitation and rotation system
05/13/2004WO2004040737A1 Elastic wave actuator
05/13/2004WO2003055042A8 Electric motor
05/13/2004US20040090701 Slim spindle motor and micro-drive apparatus comprising the same
05/13/2004US20040090140 Axial-gap motor
05/13/2004US20040090138 Economical, non-wearing electrical drive device
05/13/2004US20040090136 Three-phase alternating current generator
05/13/2004US20040090135 Permanent magnet motor rotor having magnetic permeable material for enhanced flux distribution
05/13/2004US20040089257 Flywheel arrangement for engine
05/13/2004DE10251154A1 Switched permanent magnet electrical machine e.g. for servo drive, has stator provided with electromagnetic poles alternating with permanent magnet poles
05/12/2004EP1418657A1 Rotary electric machine
05/12/2004EP1418475A1 Electromechanic micromotor
05/12/2004CN2615956Y Permasyn motor
05/12/2004CN1496602A 磁马达 Magnetic Motor
05/12/2004CN1495988A Rotary motor
05/12/2004CN1495396A Air conditioner, outdoor unit and refrigerating unit
05/12/2004CN1149728C Permanent magnet rotor type electric motor
05/12/2004CN1149453C Clock mechanism allocated with generator
05/11/2004US6734666 Method of determining the angular position of a permanent magnet rotor of a polyphase electric motor
05/11/2004US6734592 Permanent magnet rotating electric machine and electrically driven vehicle employing same
05/11/2004US6734591 Spindle motor
05/11/2004US6734590 Motor
05/11/2004US6733192 Electromagnetic actuator and camera blade driving device
05/06/2004WO2004038898A1 Permanent-field synchronous motor
05/06/2004WO2004021544A3 Interior permanent magnet machine with reduced magnet chattering
05/06/2004WO2004001744A3 Low friction, wear resistant coatings for high speed spindle motors in disc drive/storage applications
05/06/2004WO2003100957A9 Method, apparatus, and system for drive control, power conversion, and start-up control
05/06/2004WO2003100956A9 Apparatus and method for identifying an operational phase and controlling energization
05/06/2004US20040086394 Air impeller and a housing for such an impeller
05/06/2004US20040084984 Synchronous induction motor and manufacturing method and drive unit for the same, and hermetic electric compressor
05/06/2004US20040084978 Magneto-generator, method of manufacturing the same and resin molding die assembly for manufacturing the same
05/06/2004EP1416619A1 Hybrid synchronous electric machine
05/06/2004EP1416618A1 Rotor for an electric rotating machine with hybrid excitation and corresponding electric machine
05/06/2004EP1416617A1 Rotor for a rotating electric machine with hybrid excitation and corresponding electric machine
05/06/2004EP1416607A2 Spherical airgap electric motor
05/06/2004EP1415383A1 Brushless motor and electric appliance or vehicle equipped with the same
05/06/2004EP1018203B1 Electric motor with permanent-magnet rotor having viscous shaft coupling
05/06/2004DE10058669B4 Mikromotor Micromotor
05/05/2004CN1494197A Axial gap brushless motor with built-in driving circuit component
05/05/2004CN1148859C Motor
05/04/2004US6731081 Vehicle alternator having rectifier circuit using diode and FET
05/04/2004US6731033 Motor-driven system with stator provided with inductors
05/04/2004US6731025 Motor with linear and rotary motion
04/2004
04/29/2004WO2003028193A8 Two-or three-phase polyphase motor
04/29/2004US20040081561 Composite type compressor
04/29/2004US20040081376 Hydrodynamic thrust bearing
04/29/2004US20040080233 Low-profile stepping motor with two coils arranged flush with each other horizontally
04/29/2004US20040080221 Electric motor with variable rotation speed