| Patents for H02K 19 - Synchronous motors or generators (6,576) |
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| 10/01/1991 | US5053658 Electrical machine, such as rotary current generator, having improved cooling |
| 09/25/1991 | CN1054861A Pole-variable windings for adjustable-speed motor |
| 09/24/1991 | US5051640 Heteropolar excited synchronous machine |
| 09/19/1991 | WO1991008609A3 An alternator unit and an engine including the same |
| 09/19/1991 | DE4107867A1 Alternator for motor vehicle current supply - has permanent magnet rotor and electromagnet motor for flux-voltage regulation |
| 09/17/1991 | CA1289191C Detection of transposition group short circuits in machine windings |
| 09/12/1991 | DE4007526A1 Alternator for motor vehicle - has auxiliary step=up transformer with tap for excitation winding voltage supply |
| 09/11/1991 | EP0446058A2 Constant current reluctance motor drive systems |
| 09/10/1991 | US5047680 Rotating electrical machine |
| 09/04/1991 | EP0444203A1 Three-phase reluctance motor |
| 09/03/1991 | US5046150 Alternators |
| 08/27/1991 | US5043836 Noise proof capacitor unit for a vehicular generator |
| 08/27/1991 | US5043618 Electric machines |
| 08/21/1991 | EP0441970A1 Reluctance type motor |
| 08/14/1991 | CN2082914U Rectification device for excitation of brushless generator |
| 08/13/1991 | US5039896 Main field coil connector with high cyclic duty capability |
| 08/08/1991 | DE4003455A1 Single-phase synchronous motor with stator control poles - has semiconductor controlled switch with gate electrode connected to winding of secondary control pole of pair |
| 08/06/1991 | CA1287367C Switched reluctance motor |
| 07/31/1991 | EP0439016A1 Rectifier device in alternating current generator for motor vehicle |
| 07/25/1991 | WO1991011051A1 Magnetic induction method and magnetic circuit of rotator for generating mechanical and electric power |
| 07/25/1991 | WO1991011050A1 Variable-speed electric machine |
| 07/25/1991 | DE4001656A1 Elektrische maschine mit regelbarer drehzahl Electrical machine with adjustable speed |
| 07/17/1991 | CN1053106A Miniature electric generating set with methane as energy source |
| 07/16/1991 | US5031587 Internal combustion engine with integral stator and regulator |
| 07/15/1991 | CA2007767A1 Rotary machine |
| 07/13/1991 | CA2033635A1 Rectifier device in alternating current generator for motor vehicle |
| 07/11/1991 | WO1991010279A1 Combination hysteresis-reluctance-permanent-magnet motor |
| 07/04/1991 | DE3943278A1 Alternator for motor vehicle - has single diode and buffer capacitor between rotating generator winding and excitation winding of claw-pole rotor |
| 06/27/1991 | WO1991009445A1 Liquid-cooled electric generator |
| 06/27/1991 | WO1991008919A1 Power unit for vehicles |
| 06/26/1991 | EP0434666A1 Electric machine and connection wheel for changing over the rotor windings |
| 06/26/1991 | CN2079827U Generator with rectification regulator for 750 type motorcycle |
| 06/26/1991 | CN2079826U Reluctance motor with composite solid rotor |
| 06/23/1991 | WO1991010278A1 Synchronous machine |
| 06/23/1991 | CA2071995A1 Synchronous machine |
| 06/20/1991 | DE3941474A1 Fluessigkeitsgekuehlter elektrischer generator Fluessigkeitsgekuehlter electrical generator |
| 06/19/1991 | EP0432852A1 Starting device for a two-pole single-phase synchronous motor with permanent magnet rotor |
| 06/13/1991 | WO1991008609A2 An alternator unit and an engine including the same |
| 06/12/1991 | EP0431006A1 An electric motor. |
| 06/11/1991 | US5023540 Brushless power generating system having reduced conducted emissions in output power |
| 06/11/1991 | US5023502 Switched reluctance motor rotor |
| 06/04/1991 | US5021696 Cooling fan with reduced noise for variable speed machinery |
| 05/29/1991 | CN1051831A Silicon-rectified constant-voltage generator |
| 05/22/1991 | EP0427868A1 Reluctance-type electric motor |
| 05/15/1991 | EP0426751A1 Stator support structure with stamped end plates |
| 05/14/1991 | US5015903 Electronically commutated reluctance motor |
| 05/14/1991 | US5015895 Insulated, gas tight electrical lead conductor |
| 05/08/1991 | EP0426376A2 Switched reluctance motor rotor |
| 05/02/1991 | EP0424611A1 Electric drive motor, especially for automatic control functions |
| 04/30/1991 | US5012148 AC machine system with induced DC field |
| 04/28/1991 | WO1991007005A1 Multiple-stator synchronous induction motor |
| 04/23/1991 | US5010267 Variable speed machine with high power density |
| 04/09/1991 | US5006748 Stator mounting arrangement |
| 04/04/1991 | WO1991004602A1 Three-phase reluctance motor |
| 04/04/1991 | DE3931484A1 Reluctance motor with magnetic pole rotor - has alternating layers of magnetisable and non-magnetisable material |
| 04/03/1991 | CN1012285B Electric generator inspection system and motor controller |
| 04/02/1991 | US5004944 Lightweight high power electromagnetic transducer |
| 03/27/1991 | CN2074076U Special purpose ignition generator of motorcycle |
| 03/21/1991 | WO1991003858A1 Reactance type motor |
| 03/21/1991 | WO1991003836A1 Rectifier for three-phase current generators in vehicles |
| 03/20/1991 | EP0418027A1 A cooling fan for rotating electrical machinery |
| 03/19/1991 | US5001378 Rotor with reduced windage losses |
| 03/13/1991 | CN1049939A Connection of superposition method for rotor winding of high-performance a.c. motor |
| 03/07/1991 | WO1991003096A1 Single piece punched and bent neutral lead |
| 03/07/1991 | DE3929427A1 Gleichrichtereinrichtung fuer drehstromgeneratoren von fahrzeugen Rectifier means for rotating electric generators of vehicles |
| 03/05/1991 | US4998052 Gearless direct drive switched reluctance motor for laundry application |
| 03/02/1991 | WO1991003859A1 Rotor with reduced windage losses |
| 03/02/1991 | CA2044278A1 Rotor with reduced windage losses |
| 02/27/1991 | EP0414507A1 Improvements in electric reluctance machines |
| 02/26/1991 | US4995159 Method of making an electronically commutated reluctance motor |
| 02/21/1991 | DE3927454A1 Electromagnetically efficient machine with transverse flux path - has high density airgap flux, low magnetic leakage, fast commutation properties and superconducting potential |
| 02/20/1991 | EP0413452A1 Alternators |
| 02/19/1991 | US4993290 Method of stamping rotor and stator laminations |
| 02/18/1991 | WO1991003094A1 Stator mounting arrangement |
| 02/12/1991 | US4992687 Generator with inherent overload limiting |
| 02/12/1991 | CA1280154C Starter generator system with two stator exciter windings |
| 02/05/1991 | US4990812 Solenoid type electric generator |
| 02/05/1991 | US4990809 Variable reluctance motor |
| 02/05/1991 | US4990807 Integrated drive generator having magnet generator on second shaft |
| 01/30/1991 | EP0410784A1 Drive for laundry machines |
| 01/16/1991 | EP0408289A2 Noise proof capacitor unit for a vehicular generator |
| 01/01/1991 | US4982123 Integrated exciter generator and rotating transformer |
| 12/25/1990 | US4980595 Multiple magnetic paths machine |
| 12/18/1990 | CA1278015C Stator assembly for dynamoelectric machine |
| 12/18/1990 | CA1278014C Alternator having an oliquely disposed rotor |
| 12/11/1990 | US4977344 Rotor assembly and motor construction |
| 12/05/1990 | CN2067043U Rotor windingless ac gnerator |
| 11/29/1990 | DE3917343A1 Schleifringloser klauenpol-generator Slip ring-free claw-pole generator |
| 11/22/1990 | EP0397682A1 A rotating electrical machine. |
| 11/21/1990 | CN2066209U Phase compound excitation device |
| 11/20/1990 | US4972114 Alternating-current generator with claw pole rotor |
| 11/15/1990 | WO1990013941A1 Reluctance-type electric motor |
| 11/13/1990 | US4970421 Electric machines |
| 11/07/1990 | EP0395747A1 Polyphase electronically commutated reluctance motor |
| 11/07/1990 | CN1010361B Superconduction magnetic shielding ac generator without sliding contaction |
| 11/06/1990 | US4968912 Single piece punched and bent neutral lead |
| 11/06/1990 | US4967464 Method of making a switched reluctance motor having plural-stage form-wound coil winding |
| 10/31/1990 | EP0394527A1 Heteropolary excited synchronous machine |
| 10/23/1990 | US4965477 Integrated drive generator with permanent magnet generator on second shaft |
| 10/16/1990 | US4963776 Vehicular a.c. generator having improved cooling structure |