Patents for H02K 1 - Details of the magnetic circuit (44,776)
04/1991
04/23/1991US5010266 Anti-clogging offset for rotor of synchronous motor
04/18/1991WO1991005396A1 Structure of rotor of a synchronous motor
04/17/1991CN2075396U Stator core strip for single-phase asynchronous motor
04/16/1991US5008578 Permanent magnet motor having diverting magnets
04/10/1991EP0421529A1 Linear motor and positioning device comprising at least one linear motor
04/10/1991EP0421346A2 Method for producing an electric rotary machine such as a motor of DC brushless type
04/10/1991CN2074950U Three-phase low-speed synchronous electric motor
04/09/1991US5006748 Stator mounting arrangement
04/09/1991US5006045 Scroll compressor with reverse rotation speed limiter
04/04/1991DE3931484A1 Reluctance motor with magnetic pole rotor - has alternating layers of magnetisable and non-magnetisable material
04/04/1991DE3931442A1 Rotor for electrical generator or alternator in vehicle - uses cold forming to fit armature parts to rotor shaft
04/03/1991CN2074511U Large power flywheel magneto
04/03/1991CN1050473A Multipole rotor of dynamo-electric machine
04/02/1991US5004577 Frame and magnet assembly for a dynamoelectric machine
04/02/1991US5003686 Method of manufacturing a synchronous electric motor with magnetized rotar
03/1991
03/27/1991EP0419124A1 Stator assembly for an alternating current generator
03/27/1991EP0418712A1 Position sensor
03/27/1991CN1050292A Multipole rotor of dynamo-electric machine
03/26/1991CA1282102C Wedge locking device in a radially ventilated rotor
03/21/1991WO1991003855A1 Permanent magnet excited rotating electrical high speed machine
03/19/1991US5001380 Rotor for an asynchronous motor with multiple layered screen
03/19/1991US5001378 Rotor with reduced windage losses
03/06/1991EP0415057A1 Device for conveying the cooling medium in salient-pole machines
03/05/1991US4998084 Multipolar magnetic ring
03/05/1991US4998034 Low speed high torque motor with production method
03/05/1991US4997002 Power transmission
03/05/1991CA1280898C Stepping motor and frame plate assembly for a wristwatch
03/02/1991WO1991003859A1 Rotor with reduced windage losses
03/02/1991CA2044278A1 Rotor with reduced windage losses
02/1991
02/27/1991EP0414507A1 Improvements in electric reluctance machines
02/27/1991EP0414129A2 Electric rotary machine, method for producing the same and hydro-electric power installation with the machine
02/27/1991EP0413708A1 Electric machine, in particular tubular generator.
02/27/1991EP0279809B1 D.c. generator
02/26/1991US4996456 Axial retainers for coated electromagnetic rotor
02/21/1991WO1991002398A1 Alternating current generator with a central lamella in the stator bundle and process for manufacturing the central lamella
02/20/1991EP0413452A1 Alternators
02/20/1991EP0413183A1 A method and a structure for assembling and mechanically blocking permanent magnets in brushless synchronous motors and the like
02/20/1991EP0413113A2 Electronically commutated motor for vacuum cleaner and the like
02/19/1991US4994702 Motor
02/19/1991US4994699 Drain cover for yoke of dynamic electric machine
02/19/1991US4993290 Method of stamping rotor and stator laminations
02/18/1991WO1991003094A1 Stator mounting arrangement
02/13/1991EP0412340A1 Synchronmotor, preferably electronically commutated servomotor with permanent magnet excitation
02/12/1991US4992686 Single housing stepper motor
02/07/1991WO1991001588A1 Process for the assembly of an electric motor
02/07/1991WO1991001587A1 Structure for liquid-cooling of motor
02/07/1991WO1991001584A1 Radial drive for implantable centrifugal cardiac assist pump
02/07/1991DE3925365A1 Wechselstromgenerator mit statorpaket-mittellamelle und verfahren zur herstellung der mittellamelle Alternator stator-middle lamella and process for manufacturing the medium lamella
02/07/1991DE3925337A1 Electric motor with housing accommodating stator surrounding rotor - has cooling ducts running axially so gaseous cooling medium under high pressure is fed in closed cooling circuit
02/05/1991US4990812 Solenoid type electric generator
02/05/1991US4990806 Pulse motor
01/1991
01/30/1991EP0410933A1 Tubular motor with reduction gearing and with double insulation
01/30/1991EP0410127A1 Electrical machine as D.C. tachometer generator
01/30/1991EP0410048A2 Method for fixing permanent magnets on rotors of brushless motors and relevant product
01/30/1991EP0410047A1 Improvements to brushless tachogenerators with position sensor for brushless motors
01/30/1991CN2070511U Rare-earth permanent magnet generator for automobile
01/24/1991DE3920549A1 Combined housing and magnetic core for electromotor - uses magnetic wire or strip for cylindrical rotor and stator cores bonded to form robust structure
01/23/1991EP0409661A1 Motor
01/23/1991CN1011372B Double bevel wedge
01/22/1991US4987331 Non-brush D.C. motor with an improved stator
01/22/1991US4987330 Rotor lamination assembly for a dynamoelectric machine
01/22/1991US4987329 Motor magnet arrangement
01/22/1991CA2021663A1 Motor
01/16/1991EP0408486A1 Structure and method of assembly of bearing support means to the stator assembly of an electric motor
01/16/1991EP0282477B1 Electrical machine, in particular for starting systems of internal combustion engines
01/11/1991CA2020735A1 Radial drive for implantable centrifugal cardiac assist pump
01/10/1991WO1991000638A1 Rotor structure of the radial type
01/10/1991DE4018959A1 Hollow motor armature core shaft mfr. - with ridging of outer surface and fixing of core element before removing centre of hollow shaft
01/09/1991EP0406437A1 Method of fabricating a stator structure of built-in motor
01/08/1991US4983866 Encapsulated armature for electric motor
01/07/1991CA2005807A1 Functionally modular brushless motor
01/02/1991EP0405258A2 Rotary electric machine
01/02/1991CN2068730U Stator core of micromotor
01/02/1991CN1048287A Stator iron core and electric machine equipped with said iron core
01/01/1991US4982129 Single phase asynchronous motor with two magnetic poles
01/01/1991US4982128 Double air gap alternator
12/1990
12/30/1990CA2020079A1 Motor stator heat spike
12/26/1990CN2068294U Miniature water-wheel type generator
12/26/1990CN1048129A 同步机 Synchronous machine
12/25/1990US4980595 Multiple magnetic paths machine
12/25/1990US4980593 Direct current dynamoelectric machines utilizing high-strength permanent magnets
12/25/1990US4980592 Flywheel magnet rotor assembly
12/25/1990US4979285 Method of connecting a stack of laminations for electric motors
12/19/1990EP0403317A1 Electric motor stator
12/18/1990CA1278013C Permanent magnet rotor assembly
12/12/1990EP0215129B1 Permanent magnet field rotor assembly
12/11/1990US4977344 Rotor assembly and motor construction
12/11/1990US4977343 Electric motor commutator secured to rotor by confined epoxy
12/04/1990US4975613 Electrical machine with horizontal axis and resilient support of stator core
12/02/1990WO1990015467A1 Synchronous machine
11/1990
11/28/1990EP0399131A1 Electric motor whose poles are set according to the direction of the axis without commutator parts, and magnetic motor based on the same principle
11/28/1990EP0226586B1 A synchronous servomotor
11/27/1990US4973873 Electric machine
11/27/1990US4973872 Dynamoelectric machine rotor assembly with improved magnet retention stucture
11/27/1990US4973871 Stator assembly having magnet retention by mechanical wedge constraint
11/27/1990US4973869 Brushless coreless DC motor
11/27/1990US4973868 Electrical machine with permanent magnet excitation
11/22/1990EP0398746A2 Dynamoelectric machines with slot closure wedges, and methods of making the same
11/20/1990US4972114 Alternating-current generator with claw pole rotor
11/20/1990US4972113 Structure and method of assembly of bearing support means to the stator assembly of an electric motor