Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02K - Dynamo-electric machines › H02K 16 - Machines with more than one rotor or stator
Patents for H02K 16 - Machines with more than one rotor or stator (6,539)
01/1999
01/19/1999US5861693 Permanent magnet having high bhmax (b=magnetic flux density, h=magnetic coercive force) with duplex structure: inner layer cobalt-iron-yttrium and outer layer iron-neodymium-boron; energy efficiency
01/14/1999DE19729153A1 Reluctance motor with simpler manufacturing processes
01/13/1999CN1204882A Variable flux AC adjustable-speed motor
01/07/1999EP0888664A1 Electric motor
01/07/1999EP0818077A4 Hybrid alternator
12/1998
12/30/1998WO1998059410A1 Electrodynamic machine, especially a synchronous alternator and/or motor
12/23/1998EP0696242B1 Articulated arm transfer device
12/22/1998US5851162 System and apparatus for a multiple input and dual output electric differential motor transmission device
12/16/1998EP0883926A1 High-efficiency electric motor of electronic commutation type
12/08/1998US5846062 Two stage screw type vacuum pump with motor in-between the stages
12/03/1998WO1998054463A1 Permanent magnet generator
12/01/1998US5844345 Homopolar motor with dual rotors
12/01/1998US5844341 Electromagnetic machine with at least one pair of concentric rings having modularized magnets and yokes
11/1998
11/25/1998CN1199949A Stepless speed-regulating motor with AC inductor
11/24/1998US5841207 Modular two-coordinate planar motor
11/18/1998CN1199272A Two magnetic wheel coupled DC power generator
11/18/1998CN1199271A Two iron wheel coupled AC electric motor
11/18/1998CN1199270A Three-dimensional magnetic field electric machine technology and three-dimensional magnetic field electric machine
11/17/1998US5838135 Driving means formed by induction motor and method for starting the same
11/17/1998US5838085 Versatile AC dynamo-electric machine
11/12/1998WO1998050998A1 A motor
11/12/1998CA2288643A1 A motor
11/11/1998EP0729663A4 Open stator axial flux electric motor
10/1998
10/28/1998EP0873586A1 Drive with several flat linear motors
10/22/1998WO1998026495A3 Motor/generator
10/21/1998EP0872943A1 Permanent-magnet revolving electrodynamic machine with a concentrated stator winding
10/14/1998EP0871277A1 Modular electric motor
10/13/1998US5821710 Brushless motor having permanent magnets
10/08/1998WO1998044620A1 Permanent magnet generator
10/08/1998DE19712306A1 Magnetoelectrical induction method for motor-generator
10/08/1998CA2285442A1 Permanent magnet generator
10/07/1998EP0868770A1 Basic module for a discoidal electric machine, and corresponding electric machine
10/06/1998US5818144 Linear-type induction motor
10/06/1998US5818131 Linear motor compressor and its application in cooling system
09/1998
09/29/1998US5814913 Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor
09/29/1998US5813823 Articulated arm transfer device
09/29/1998CA2071542C Multiple-stator induction synchronous motor
09/29/1998CA2038480C Two-stator induction synchronous motor
09/24/1998WO1998042063A1 Dc motor actuator to create radial force
09/23/1998EP0866539A1 Electric rotating machine excited by coils, permanent magnets or double excitation
09/23/1998CN2292352Y DC generator with generating energy-storage device
09/17/1998DE19708801A1 Energy converter for energy of fluid flow into electrical energy
09/16/1998CN1193216A Combined motor
09/15/1998US5808450 Special alternator assembly with an inherent ballast impedance characteristic for lighting systems
09/15/1998US5808395 Torque motor
09/11/1998WO1998039836A1 Electronically switched d.c. motor
09/10/1998DE19708927A1 Relative force drive method for electrical machine
09/09/1998CN1192605A Generator unit having various generator by utilizing waste heat as energy source
09/01/1998US5801497 Power output apparatus
09/01/1998US5801473 Open stator axial flux electric motor
08/1998
08/26/1998EP0859666A2 Apparatus with a plurality of electric-motor driven centrifuges
08/20/1998WO1998036487A1 An electric machine
08/19/1998CN2288543Y Three-phase double-stator change-speed motor
08/18/1998US5796233 Multiple-stator induction synchronous motor
08/13/1998WO1998035425A1 Generator and motor
08/13/1998WO1998035423A1 The use of a toroidal winding in an electric polyphase machine
08/13/1998DE19704504A1 Electric motor with sub-divided windings e.g. for drive- or feed-motor in machine tools
08/11/1998US5793136 Differential motor/generator apparatus
08/06/1998DE19704271A1 Electric machine with stator and rotor
07/1998
07/30/1998WO1998033262A1 Dynamo-electric machine and generator and motor wherein the machine is used
07/30/1998WO1998032687A1 Procedure in an elevator drive machine
07/30/1998WO1998032686A1 Elevator drive machine
07/30/1998WO1998032685A1 Elevator drive machine and an elevator
07/30/1998WO1998032684A1 Elevator drive machine
07/30/1998DE19704652C1 Anwendung einer Ringwicklung in elektrischen Drehfeldmaschinen Application of a toroidal winding in electrical induction machines
07/29/1998CN2286941Y Full-floating type motor
07/21/1998US5783894 Method and apparatus for generating electrical energy
07/21/1998US5783893 Multiple stator, single shaft electric machine
07/14/1998US5780950 Co-axial magnetic circuit type compound rotor electrical machine
07/14/1998US5779453 Vacuum pump motor arrangement having reduced heat generation
07/08/1998EP0815633A4 Doubly-salient permanent-magnet machine
07/07/1998US5777418 Transverse flux motor with magnetic floor gap
07/07/1998US5775467 Floating electromagnetic brake system
07/01/1998EP0712545A4 Versatile ac dynamo-electric machine
07/01/1998CN1186374A Electromagnetic motor with two coaxial rotors
06/1998
06/25/1998WO1998027473A1 Mechanical-electric energy converter and watch part comprising this energy converter
06/24/1998EP0849423A2 Locking device
06/24/1998EP0848671A1 Hybrid drive system
06/24/1998CN1185868A Hybrid alternator having voltage regutator
06/18/1998WO1998026495A2 Motor/generator
06/17/1998EP0848480A1 Single-phase electromechanical transducer and electromechanical device with at least one of such transducer
06/17/1998CN1184964A Two-phase electromechanical transducer and electromechanical device including at least one such transducer
06/10/1998EP0847130A1 Two-phase electromechanical transducer and electromechanical device with at least one of such transducer
06/10/1998EP0846365A1 Canned motor
06/10/1998EP0846364A1 Electric motor
06/10/1998DE19650160A1 Electric motor drive for automobile windscreen wipers, electric window, or folding roof cover
06/04/1998WO1998024168A1 Electric machine
06/03/1998EP0845850A1 Electromagnetic motor with two coaxial rotors
06/02/1998US5760520 Motor
06/02/1998US5760507 Electrical generating system for a motor vehicle
06/02/1998US5760503 Stepping motor having rotor sections with permanent magnets disposed thereon at a constant pitch
05/1998
05/28/1998WO1998022734A1 System and apparatus for a multiple input and dual output electric differential motor transmission device
05/27/1998CN1038550C Multi-rotor ac electric machine
05/20/1998CN2282297Y Coaxial split power squirrel-cage asynchronous motor
05/20/1998CN1182302A Efficient multiple-state electric motor
05/20/1998CN1182043A Elevator car door system
05/19/1998US5753989 Hybrid alternator
05/13/1998EP0841285A1 Elevator car door system
05/13/1998CN2281609Y Stable voltage generator
05/13/1998CN2281608Y A. C. asynchronous and synchronous motor
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