Patents for H02K 1 - Details of the magnetic circuit (44,776)
03/1994
03/17/1994WO1994006192A1 Stator and method of constructing same for high power density electric motors and generators
03/16/1994EP0586710A1 Radial anisotropic cylinder type ferrite magnets and their manufacturing methods and motors.
03/16/1994EP0406437B1 Method of fabricating a stator structure of built-in motor
03/16/1994CN1083981A Permanent magnetic rotator of brushless electric motor and manufacture thereof
03/09/1994EP0585452A1 Electromagnetic actuator
03/09/1994CN1083619A Radial anisotropic cylinder type ferrite magnets and their manufacturing methods and motors
03/03/1994WO1994005075A1 Permanent magnet rotor of brushless motor and production method thereof
03/03/1994WO1994005074A1 Brushless dc motor and its driving method
03/03/1994WO1994005073A2 Electric fan motor
03/03/1994WO1994005070A1 Rotor structure for an electrical machine
03/03/1994DE4227919A1 Async. electromechanical energy converter - has spacing between magnetic loops and damping laminae diminishing ineffectual field components
03/03/1994CA2142089A1 Permanent magnet rotor of brushless motor and production method thereof
03/02/1994CN1083279A Brushless DC motor and method for rotative driving of same
02/1994
02/22/1994US5289066 Stator for dynamoelectric machine
02/22/1994US5289065 Zero air gap orbiting gear stepper motor
02/17/1994WO1994003959A1 Armature for an electrical machine
02/16/1994EP0582721A1 Rotor of synchronous motor
02/16/1994CN1023855C Synchronous machine
02/15/1994CA2011014C Structure and method of assembly of bearing support means to the stator assembly of an electric motor
02/09/1994EP0581966A1 Motor equipped with stator cooling means
02/03/1994WO1994002986A1 Electric machine
02/03/1994WO1994002985A1 Electric machine
02/03/1994WO1994002984A1 Electric machine
02/03/1994WO1994002982A1 Stator of motor
02/03/1994DE4239754A1 Läufer für eine elektrische Maschine Rotor for an electric machine
02/03/1994DE4224757A1 Spindle synchronous motor for spinning and twisting - has adhesive bonded permanent magnets at circumference of cage around the rotor
02/03/1994DE4223831A1 Elektrisch erregte Transversalfluß-Maschine Electrically excited transverse flux machine
02/01/1994US5283488 For an electrical generator
02/01/1994CA1326698C Modular electric motor
01/1994
01/27/1994DE4224628A1 Fractional horsepower miniature electromotor - has lobes which bend over return ring after it is pushed onto pole housing to fix ring in place
01/26/1994EP0580208A2 Method of producing magnetic rotor parts
01/26/1994EP0579745A1 Dynamoelectric machines having energy-efficient stator constructions and method
01/26/1994EP0579625A1 A rotor for a short circuited alternating current motor.
01/25/1994US5281881 Frame and magnet assembly for a dynamoelectric machine
01/20/1994WO1994001917A1 Electric motor-wheel
01/20/1994WO1994001592A1 Induced rotors for electromagnetic speed reducers fabricated with ferritic nodular cast iron
01/19/1994EP0579560A1 Stepping motor
01/19/1994CN2153898Y Permanent-magnet generator with protective function for car
01/19/1994CN1081031A Miniature motor and method of making same
01/18/1994US5280210 Universal electric motor with a switch ring mounted adjacent the brushes
01/18/1994US5280209 Permanent magnet structure for use in electric machinery
01/15/1994CA2073837A1 Method of making electric motor components and a motor utilizing components made according to the method
01/12/1994CN1080790A Asychronous induction starting rare-earth permanent magnetic motor
01/11/1994US5278468 Structure for a DC motor with an electronic commutation
01/11/1994US5276958 Method of manufacturing an electromotor with laminated stator
01/06/1994WO1994000905A1 Transient-free synchronous electrical power machine
01/06/1994CA2122019A1 Transient-free synchronous electrical power machine
01/05/1994CN2152340Y Single phase voltage regulating speed regulating motor
01/04/1994US5276375 Apparatus for fixation of magnetic shells in a motor housing
12/1993
12/29/1993CN1080094A Leakage reluctance induction machine
12/28/1993US5274292 Collector ring assembly and method
12/23/1993WO1993026077A1 Permanent magnet alternator
12/23/1993WO1993026076A1 Rotor for synchronous motor
12/22/1993CN2150669Y Permanent magnetic suspension-arm type brushless generator
12/22/1993CN2150668Y Permanent magnetic generator for automobile
12/22/1993CN2149997Y Multi-function mini-size electric drill
12/15/1993CN2149711Y Multi-effect and energy-saving electric motor
12/15/1993CN1079593A Permanent magnet rotor with squirrel-cage embedded-pole structure
12/15/1993CN1079592A Permanent magnet rotor with squirrel-cage shaded-pole structure
12/15/1993CN1079591A Accessories type rare-earth permanent magnet motor
12/15/1993CN1079590A Additional felloe type rare-earth magneto-electric machine rotor
12/14/1993US5270605 Three-phase alternator for a motor vehicle
12/14/1993US5270604 Tandem field alternator having an improved coil and slip ring connection and method of making the same
12/14/1993US5269663 Electric pump for the circulation of a liquid, for example in an internal-combustion engine
12/08/1993CN2149053Y Self-controlling permanent-magnet alternating-current generator
12/07/1993US5268607 Molded resin motor housing
12/07/1993US5268602 Electric machine, especially a dynamo for mounting on a wheel hub
12/01/1993CN2148429Y Rb-Fe-B claw permanent-magnet synchronous motor for textile
12/01/1993CN1079081A Sheet type motor
12/01/1993CN1079071A Mixed magnetic circuit electric device producing method
11/1993
11/30/1993US5266859 Skewing of pole laminations of a switched reluctance machine to reduce acoustic noise
11/25/1993WO1993023641A1 Vibrator with built-in electromotor
11/25/1993WO1993023266A1 Electric car
11/25/1993DE4216938A1 Permanent magnet excited electric motor - has radial cross=section of soft magnetic yoke areas dimensioned w.r.t. the cross=section of the pole cores
11/24/1993EP0571347A1 Electric synchronous motor
11/24/1993CN2147684Y Large power ac/dc permanent magnetic generator
11/24/1993CN2147678Y Magnetic rotator of motive vehicle generator
11/23/1993US5264749 Electric motor with adhesively mounted magnet yoke
11/23/1993US5264748 Axial-flow fan motor
11/22/1993CA2095450A1 Tandem field alternator having an improved coil and slip ring connection and method of making the same
11/18/1993EP0569738A1 Small commutator motor
11/18/1993EP0569594A1 Rotor of synchronous rotating machine
11/18/1993EP0550709A4 Magnetically driven motor
11/18/1993DE4215463A1 Rüttler mit eingebautem Elektromotor Jogger with self-contained electric motor
11/17/1993CN1078581A Numeral-control electric hauling device capable of energy recovery
11/11/1993WO1993022822A1 Composite magnet stepper motor
11/10/1993EP0331740B1 MAGNETIC CORE MATERIAL FOR HIGH FREQUENCY MADE OF Fe-Co BASE ALLOY
11/09/1993US5260620 Asynchronous induction motor
11/09/1993CA2095737A1 Alternator voltage waveform improvement
11/06/1993CA2068051A1 Electric motor
11/03/1993EP0568347A1 Stepping motor
11/03/1993CN1078074A A miniature motor
11/02/1993US5258735 Multi-pole composite magnet used in a magnetic encoder
11/02/1993US5258679 Structure of DC motor with electronic commutation
11/02/1993US5258678 Rotator element for electric motor
10/1993
10/28/1993DE4213380A1 Electronically commutated brushless DC motor with permanent magnets - has circumferential dimension of each rotor magnet equal to sum of breadths of adjacent stator tooth pole piece and gap
10/28/1993DE4213379A1 Electronically commutated claw-pole motor - has rotor disc magnetised with alternate poles equal in width to parallel-edged claws of correspondingly spaced stator pole pieces
10/28/1993DE4213378A1 Electronically commutated DC motor rotor - has interdigitated arrangement of claws extending through plane of symmetry between two discs enclosing permanent magnets
10/28/1993DE4213377A1 Electronically commutated brushless DC motor - has tubular supports for stator windings and insulating coil former with support for each winding into which stator teeth are inserted before being assembled together
10/28/1993DE4213376A1 Brushless electric motor with magnet yokes between stator teeth - has arcuate section of internal surfaces of spaces accommodating windings with yoke thickness increasing in both directions from centre