| Patents for H02K 17 - Asynchronous induction motors; Asynchronous induction generators (5,343) |
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| 05/01/1991 | CN1051108A 感应电动机 Induction motor |
| 05/01/1991 | CN1012546B Three-phase induction motor |
| 05/01/1991 | CN1012545B Three-phase induction motors |
| 04/28/1991 | WO1991007005A1 Multiple-stator synchronous induction motor |
| 04/24/1991 | CN1012458B Asynchronous motor |
| 04/17/1991 | CN1050798A Excited induction motor |
| 04/16/1991 | US5008576 Magnetizing type induction motor |
| 04/10/1991 | EP0421656A1 Induction motor |
| 04/10/1991 | EP0421655A1 Induction motor |
| 04/10/1991 | CN2074949U Single-phase electrode-changing speed-regulating asynchronous electric motor |
| 04/10/1991 | CN1050650A 感应电动机 Induction motor |
| 04/09/1991 | US5006743 Multiple compartmented dynamoelectric machine |
| 04/09/1991 | US5005383 Washing machine motor with high rotor resistance |
| 04/03/1991 | CN2074514U Three-phase two-speed wound asynchronous motor |
| 04/02/1991 | US5004942 Power and control chamber for dynamoelectric machines |
| 03/19/1991 | US5001380 Rotor for an asynchronous motor with multiple layered screen |
| 03/13/1991 | CN2073188U Motor of ceiling fan with variable speed controlling circuit realizing capacity reduction voltage |
| 03/13/1991 | CN1049939A Connection of superposition method for rotor winding of high-performance a.c. motor |
| 03/12/1991 | CA1281358C Series resonant capacitor motor |
| 03/05/1991 | USH900 Magnetic repulsion supported ring |
| 03/05/1991 | CA1281065C Parallel resonant single phase motor |
| 03/05/1991 | CA1281064C Capacitor-start parallel resonant motor |
| 02/27/1991 | CN2072293U Explosion insulating type double-speed motor for centrifuger |
| 02/20/1991 | CN2071846U Tube cage asynchronous motor |
| 02/13/1991 | EP0412858A1 Electrical motor-pump with air-gap sleeve |
| 02/13/1991 | EP0412201A1 Single-phase asynchronous motor |
| 02/12/1991 | CA2023130A1 Enclosed pump motor and wiring thereof |
| 01/30/1991 | CN1048957A Miniaturized electromagnetic monophase actuator |
| 01/24/1991 | WO1991001062A1 Method of and device for controlling induction motor for compressor |
| 01/23/1991 | CN2070055U Stepless speed-regulating pulse induction motor |
| 01/16/1991 | CN2069631U High-speed cage rotor end bar anti-breakage structure |
| 01/02/1991 | CN2068731U Double-value condenser single-phase asynchronous motor specially used for carpenter's plane |
| 01/01/1991 | US4982373 Fluid agitator |
| 01/01/1991 | US4981420 Immersion pump |
| 12/27/1990 | WO1990016107A1 Compact monophase electromagnetic actuator |
| 12/20/1990 | DE3919628A1 Capacitor start circuit for single phase induction motor - has two capacitors dimensioned to satisfy start and run condition with relay responding to rotor acceleration |
| 12/19/1990 | EP0403317A1 Electric motor stator |
| 12/19/1990 | CN2067876U 异步电动机 Induction motor |
| 12/12/1990 | CN1047769A Asynchronous motor with external resistance carried by rotor |
| 11/22/1990 | EP0397891A1 Ac spindle motor and method of changing the revolving speed thereof |
| 11/14/1990 | CN1010450B Pole-changing method using phase-mixing |
| 11/13/1990 | US4970424 Rotor construction for high speed induction motor |
| 11/08/1990 | DE4013674A1 Squirrel-cage motor with two cast rotor packets - has modular step rotor suitable for aluminium casting with conductive junction between packet ends within bore |
| 10/25/1990 | DE3912803A1 Combination electrical cooker - has fan which sucks out amount of vapour corresp. to cooking mode by driving fan at two different speeds |
| 10/16/1990 | US4963778 Frequency converter for controlling a motor |
| 10/16/1990 | US4963777 Submersible electromotor with internal voltage selector switch |
| 10/10/1990 | CN2063717U Ac stepless voltage and speed regulating asynchronous motor |
| 10/10/1990 | CN2063716U Change-pole winding of governor motor |
| 10/02/1990 | US4961018 Enclosed pump motor and wiring thereof |
| 09/26/1990 | CN1045668A Wound-rotor asynchronous motor |
| 09/25/1990 | US4959578 Dual rotor axial air gap induction motor |
| 09/25/1990 | US4959573 Electromagnetic induction machines having regulated polar magnetic symmetry |
| 09/20/1990 | WO1990010971A1 Electromagnetic induction devices with multi-form winding incorporating reflected magnetizing |
| 09/12/1990 | EP0386608A1 Device for modulating beams in the light path of photometric analysers |
| 09/04/1990 | US4954740 Stator winding for two-speed electrodynamic machines having fractional speed ratios |
| 08/22/1990 | CN2060827U Power saving centrifugal blower with electric motor installed in casing |
| 08/16/1990 | EP0381769A1 Structure and method for fixing radial type rotor to output shaft of synchronous motor |
| 08/15/1990 | CN1044740A Three-speed miscible-phase pole-changing winding wiring method and pole-changing winding |
| 08/07/1990 | US4947072 Stator winding for two-pole dynamoelectric induction machines |
| 08/06/1990 | CA2009308A1 Electric motors having integrated control housing and method of fabrication |
| 08/01/1990 | CN2060023U Asynchronous motor with sinusoidal winding |
| 07/31/1990 | US4945296 Variable speed controllable induction motor |
| 07/27/1990 | CA2003822A1 Electric motor, especially a submersible motor |
| 07/26/1990 | WO1990008419A1 Terminal box having built-in connection switching contactor for three-phase induction motor |
| 07/17/1990 | US4942323 Two pole electric motor with stator winding encircling the rotor |
| 07/04/1990 | EP0376498A1 Motor terminal box mounted solid state starter |
| 07/04/1990 | CN1008676B Asynchronous motor of new wound-rotor type |
| 06/27/1990 | EP0374612A1 Gap tube electric motor |
| 06/26/1990 | US4937513 Tapped auxiliary winding for multi-speed operation of electric motor and method therefor |
| 06/26/1990 | US4937482 Voltage and rotation switching device |
| 06/26/1990 | CA1270883A1 Rotor of induction motor |
| 06/21/1990 | DE3941336A1 Unipolar generator providing AC or DC output - has counter-pole rotated relative to conductors to generate current |
| 06/19/1990 | US4935653 Stator for a ceiling fan |
| 06/14/1990 | WO1990006617A1 Ac spindle motor and method of changing the revolving speed thereof |
| 06/13/1990 | CN1043047A Multifunctional motor |
| 06/05/1990 | CA1270029A1 Ptc starter for an asynchronous motor |
| 05/31/1990 | WO1990006013A1 Cage rotor and method of manufacturing same |
| 05/29/1990 | US4928771 Cable suspended pumping system |
| 05/17/1990 | DE3937672A1 Capacitor fixing device for motor stator housing - has fixing bracket secured to cooling ribs of stator housing and slot in which rib fits |
| 05/09/1990 | CN1007949B Wound rotor asynchronous motor started with no brush |
| 05/02/1990 | CN1007859B Induction motor |
| 04/25/1990 | CN2056550U Motor of internal arc moment type |
| 04/24/1990 | US4920293 Squirrel-cage induction motor |
| 04/21/1990 | CA2001051A1 Stator winding for two-pole dynamoelectric induction machines |
| 04/19/1990 | WO1990004281A1 Squirrel-cage induction motor for frequency convertor operation |
| 04/19/1990 | WO1990004280A1 Squirrel-cage induction motor for frequency convertor operation |
| 04/11/1990 | EP0201486B1 Induction motor |
| 04/10/1990 | US4916341 Electric arbor integrated with an induction motor |
| 04/04/1990 | CN1041071A Multiple-segment combination method for connecting pole-changeable rotor winding |
| 03/13/1990 | US4908757 Static frequency converter, especially a frequency converter controlling and/or adjusting the performance data of an electromotor |
| 02/22/1990 | WO1990001825A1 Structure for fixing radial type rotor to output shaft of synchronous motor |
| 02/22/1990 | DE3828153A1 Process and apparatus for the doffing of a textile machine |
| 02/21/1990 | CN2053396U High-efficient three-phase asynchronous motor |
| 02/21/1990 | CN2053395U Motor without centrifugal switch |
| 02/21/1990 | CN1039936A Energy-saving multispeed asynchronous motor and making method |
| 02/14/1990 | CN2052985U Power saving single phase asynchronous motor |
| 02/13/1990 | US4901070 Pressure monitoring system with isolating means |
| 02/07/1990 | EP0354155A2 Reversing PSC motor design capable of high reversal repetition rate |
| 02/06/1990 | CA1265567A1 Electrical motor having capacitors mounted between stator teeth |
| 01/31/1990 | EP0352354A1 Compound short-circuit induction machine and method of its control |