| Patents for H02K 27 - Ac commutator motors or generators having mechanical commutator (267) |
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| 02/03/2015 | US8946963 Polyphase stator for internally ventilated rotating electrical machine, and rotating electrical machine comprising such stator |
| 11/18/2014 | US8890466 Circuit arrangement |
| 08/13/2014 | CN103986249A 交流整流子电动机和使用其的电动风机 AC commutator motor and using the same electric blower |
| 07/30/2014 | CN203747613U 一种外置碳刷交流发电机 An outboard brushless alternator |
| 07/22/2014 | US8786233 Electric ratchet for a powered screwdriver |
| 07/15/2014 | US8779644 Rotating electrical machine and method for manufacturing a stator thereof |
| 06/24/2014 | US8760089 Variable speed drive system |
| 04/16/2014 | CN103731000A Reversing direct-current motor with magnetic poles formed by combined permanent magnets |
| 02/25/2014 | US8659805 Motor driving control device, image forming apparatus, and image forming method |
| 01/29/2014 | CN203416141U Motor vehicle AC generator rotor and motor vehicle AC generator |
| 10/23/2013 | CN103368349A Vehicular AC generator |
| 10/15/2013 | CA2476167C Fuel flexible internal explosion gun-engine that converts completely energy of fuel into work or electricity or both |
| 09/17/2013 | US8536970 Multilayered miniature coil component |
| 09/17/2013 | US8536751 Electromagnetic device with reversible generator-motor operation |
| 09/03/2013 | US8525384 Motor |
| 08/27/2013 | US8519590 Magneto generator with multiple sets of three-phase windings |
| 07/10/2013 | CN203056810U Anti-radiation environment-friendly motor |
| 04/17/2013 | CN202889155U Novel alternating-current series motor |
| 02/27/2013 | CN1950993B Commutator motor having a number of field winding groups |
| 01/29/2013 | US8362751 Harnessing power through electromagnetic induction utilizing printed coils |
| 11/06/2012 | US8303449 Automatic transmission for a power tool |
| 10/17/2012 | CN102738999A Motor |
| 10/10/2012 | CN101867276B Control system of frequency conversion-controlled centrifugal machine |
| 10/03/2012 | CN102714452A Pitch drive device for a wind power or hydroelectric power station |
| 09/26/2012 | EP2502334A2 Pitch drive device for a wind power or hydroelectric power station |
| 08/29/2012 | CN102651598A Alternating current commutator electric motor and electric blower adopting electric motor |
| 08/08/2012 | CN101320926B Electric power tool with a rotatable brush plate |
| 07/18/2012 | CN102594074A Switched Reluctance Motor |
| 07/18/2012 | CN102594073A Switched reluctance motor |
| 06/05/2012 | US8193682 Vehicle alternator provided with brushes, brush holder, and slip rings |
| 06/05/2012 | US8193677 Brushless motor and electric power steering apparatus having exposed bus bar |
| 05/23/2012 | CN101675576B Mold rectifier and rectification motor using the same |
| 05/09/2012 | CN202218140U Single-phase alternating current (AC) series motor |
| 05/08/2012 | US8174159 Optimized multi-phase armature winding |
| 05/03/2012 | WO2011061233A3 Pitch drive device for a wind power or hydroelectric power station |
| 05/02/2012 | CN202210746U Flat motor |
| 04/11/2012 | CN202190200U 一种汽车有刷交流发电机的励磁线圈 An automobile brush alternator field coil |
| 03/13/2012 | CA2404942C Universal frequency electrical generator |
| 10/18/2011 | US8040012 Electrical machinery incorporating double helix coil designs for superconducting and resistive windings |
| 09/13/2011 | US8018112 Coil wire for coil assembly for rotary electrical machine |
| 09/08/2011 | DE102011011435A1 Rotor for e.g. permanent magnet direct-current motor, has windings led around teeth and electrically connected with respective segments, where number of segments amounts to one and half times of number of winding slots |
| 08/03/2011 | CN201918871U 聚醚反应釜搅拌电机自动控制装置 Polyether reactor stirring motor automatic control device |
| 05/26/2011 | CA2780849A1 Pitch drive device for a wind power or hydroelectric power station |
| 03/22/2011 | US7911164 Circuit installation capable of full voltage activation, division voltage operation and delayed breaking |
| 03/22/2011 | US7911107 AC electric motor |
| 03/22/2011 | US7911106 Rotary electric machine |
| 03/10/2011 | DE102010034890A1 Universalmotor Universal motor |
| 02/10/2011 | WO2011016789A1 Electric motor |
| 01/06/2011 | US20110001384 Motor |
| 12/07/2010 | US7847464 Armature of rotary electric machine and method for producing same |
| 11/24/2010 | EP2254222A2 Electric handheld machine tool with an electric motor comprising a commuter and polishing brushes |
| 11/23/2010 | US7839105 Circuit installation capable of full voltage activation, division voltage operation and delayed breaking |
| 11/09/2010 | US7830059 Stacked rail stator and capacitive armature linear motor |
| 10/20/2010 | CN101867276A Control system of frequency conversion-controlled centrifugal machine |
| 09/21/2010 | US7800321 Method for the detection of the rotational position of the rotor of a DC motor with commutator |
| 09/07/2010 | US7791298 Motor driver system and method for protecting motor driver |
| 08/24/2010 | US7781933 Winding arrangement for rotating electrical machine |
| 07/29/2010 | WO2010035639A3 Commutator motor, electric tool using same, and method of manufacturing same |
| 07/22/2010 | DE102009058346A1 Universalmotor Universal motor |
| 07/20/2010 | US7759835 Method for manufacturing a winding for a stator of an electric machine |
| 06/16/2010 | CN101741152A Motor, motor stator and motor stator manufacturing method |
| 05/27/2010 | DE102009052221A1 Elektromotor Electric motor |
| 05/26/2010 | CN1446396B Universal frequency electrical generator |
| 04/27/2010 | US7705549 Series resistor assembly for an electric motor, circuit arrangement comprising a series resistor assembly for operating an electric motor and use of said assembly |
| 04/01/2010 | WO2010035639A2 Commutator motor, electric tool using same, and method of manufacturing same |
| 03/17/2010 | CN201426060Y Variable frequency AC motor for blade variation of wind-driven generator and driving system thereof |
| 03/17/2010 | CN101675576A Mold rectifier and rectification motor using the same |
| 03/03/2010 | EP2158668A2 Switched reluctance machines with minimum stator core |
| 02/17/2010 | CN201409063Y Sealing and fastening mechanism for inserting heat pipes into water tank |
| 01/19/2010 | US7649297 Commutator, direct-current motor, and method for manufacturing commutator |
| 12/30/2009 | WO2008153832A3 Switched reluctance machines with minimum stator core |
| 12/23/2009 | EP2136457A1 Mold rectifier and rectification motor using the same |
| 12/22/2009 | US7634955 Method of controlling drive of driving motor for rotary indexing device of machine tool |
| 12/17/2009 | DE102009024910A1 Elektromotor Electric motor |
| 12/15/2009 | CA2345234C A synchronous machine with rotating brushes |
| 10/20/2009 | US7605513 Electric tool having electric motor with first and second coils having first and second coil bundles of different innermost peripheral length |
| 10/06/2009 | US7598691 Current control device and method |
| 09/24/2009 | WO2009070472A3 Circular self-powered magnetic generator |
| 09/22/2009 | US7594239 Magnetic actuator |
| 06/09/2009 | US7545070 Commutator motor having a number of field winding groups |
| 06/04/2009 | WO2009070472A2 Circular self-powered magnetic generator |
| 05/27/2009 | CN201248022Y Electric tool with motor control module |
| 05/07/2009 | WO2009057029A2 Rotational magnetic propulsion motors |
| 05/07/2009 | CA2703862A1 Rotational magnetic propulsion motors |
| 03/31/2009 | US7511401 Rotor of motor |
| 12/18/2008 | WO2008153832A2 Switched reluctance machines with minimum stator core |
| 12/11/2008 | DE102007026106A1 Elektrohandwerkzeugmaschine mit einer drehbaren Bürstenplatte Electric hand tool with a rotating brush plate |
| 12/10/2008 | CN101320926A Electric power tool with a rotatable brush plate |
| 12/04/2008 | DE102007025010A1 Stator for electrical machine, particularly universal motor, has cross section extension, longitudinal extension and jacket surface |
| 12/04/2008 | DE102007025009A1 Stator for electrical machine, particularly universal motor, has cross section extension, longitudinal extension and jacket surface |
| 11/20/2008 | WO2008139681A1 Mold rectifier and rectification motor using the same |
| 10/21/2008 | US7439698 Electric motor system |
| 10/10/2008 | CA2585285A1 A method to generate electricity and light electric generator |
| 09/10/2008 | CN201113735Y Multifunctional frequency converter |
| 09/04/2008 | WO2008106443A2 Magnetic power supply engine |
| 08/27/2008 | EP1279221B1 Universal frequency electrical generator |
| 08/19/2008 | US7414344 Commutator and an armature |
| 08/07/2008 | US20080185933 Three-phase rotating electrical machine |
| 05/08/2008 | DE102004026540B4 Verfahren zur Herstellung von Lamellen eines Flachkommutators A process for the production of lamellae of a Flachkommutators |
| 04/30/2008 | CN100386001C Device for supplying power to light source and its method |