ClassID:

217483

H02K21/028 - CPC Classification

Classification description:

Synchronous motors having permanent magnets; Synchronous generators having permanent magnets; Details; Means for mechanical adjustment of the excitation flux by modifying the magnetic circuit within the field or the armature, e.g. by using shunts, by adjusting the magnets position, by vectorial combination of field or armature sections

Sub-classes:
Recent Application in this class:
#1
20260066755
2026-03-05

SYSTEMS AND METHODS COMBINING DISCRETE FLUX-DIRECTED MAGNET ASSEMBLIES THAT INTEGRATE MAGNETIC GEAR BOXES WITH SINGLE OR DUAL ROTOR MACHINES

#2
20260031693
2026-01-29

VARIABLE FLUX MOTOR

#3
20250330074
2025-10-23

VARIABLE AXIAL FLUX MOTOR

#4
20240333116
2024-10-03

APPARATUS FOR USE WITH ELECTROCHEMICAL CELLS

#5
20240162795
2024-05-16

PERMANENT MAGNET MOTOR WITH DYNAMIC MAGNET ORIENTATIONS

#6
20240120818
2024-04-11

SYSTEMS AND METHODS COMBINING DISCRETE FLUX-DIRECTED MAGNET ASSEMBLIES THAT INTEGRATE MAGNETIC GEAR BOXES WITH SINGLE OR DUAL ROTOR MACHINES

#7
20240120782
2024-04-11

ELECTRIC MACHINE AND MOTOR VEHICLE

#8
20230421033
2023-12-28

Circumferential flux electric machine with field weakening mechanisms and methods of use

#9
20230238865
2023-07-27

VARIABLE AXIAL FLUX MOTOR

#10
20230117266
2023-04-20

Mechanical and electromechanical arrangements for field-weakening of an electric machine that utilizes permanent magnets

#11
20230100109
2023-03-30

Rotary electric machine

#12
20220385158
2022-12-01

Rotary electrical machine using time-invariant magnetic fields

#13
20220115936
2022-04-14

Circumferential flux electric machine with field weakening mechanisms and methods of use

#14
20220085706
2022-03-17

Electric machine with device for forcibly demagnetising permanent magnets

#15
20220037947
2022-02-03

ROTATING ELECTRIC MACHINE

#16
20210376705
2021-12-02

Permanent magnet motor with field weakening arrangement

#17
20210320576
2021-10-14

Fluid turbine generator

#18
20210317873
2021-10-14

Passive magnetic bearing

#19
20210234445
2021-07-29

Electric machine and hybrid electric aircraft having a fault device configured to change a magnetic flux coupling between coil cores

#20
20210152042
2021-05-20

ROTOR OF AN ELECTRICAL MACHINE WITH ASYMMETRIC MAGNETIC BRIDGES

#21
20200227990
2020-07-16

Electro-magnetic motor

#22
20200220442
2020-07-09

Electrical machine disconnection systems

#23
20200220441
2020-07-09

Electrical machine disconnection systems

#24
20200153299
2020-05-14

Permanent magnet electric machine with variable magnet orientation

#25
20200106316
2020-04-02

Permanent magnet electric machine with moveable flux-shunting elements

#26
20190348896
2019-11-14

Electromagnetic energy converter

#27
20190207492
2019-07-04

Variable flux permanent magnet motor

#28
20190207447
2019-07-04

Permanent magnet electric machine with variable magnet orientation

#29
20190165659
2019-05-30

Rotary electric machine equipped with magnetic flux variable mechanism

#30
20190157946
2019-05-23

Electric machine

#31
20190140495
2019-05-09

Permanent magnet electrical machine

#32
20190068037
2019-02-28

Permanent magnet machine including ferromagnetic components for external field weakening and method of constructing

#33
20180342936
2018-11-29

Variable flux bridge for rotor an electric machine

#34
20180342916
2018-11-29

Variable flux bridge for rotor of an electric machine

#35
20180278134
2018-09-27

Circumferential flux electric machine with field weakening mechanisms and methods of use

#36
20180183289
2018-06-28

ROTARY ELECTRIC MACHINE AND VEHICLE

#37
20180183287
2018-06-28

Method and arrangement for adjusting the magnetization of a permanent magnet machine

#38
20180175712
2018-06-21

Electric machine with variable motor constants

#39
20180145575
2018-05-24

Electrical machine including a magnetic flux weakening apparatus

#40
20170373573
2017-12-28

Electric machine

#41
20170310200
2017-10-26

FIXED MAGNETIC GAP PERMANENT MAGNET SPEED GOVERNOR

#42
20170298915
2017-10-19

Plunger electric fuel pump

#43
20170256106
2017-09-07

Vehicle and engine generator unit for driving vehicle

#44
20170253233
2017-09-07

Vehicle having a generator with inductance-adjustable windings

#45
20170244349
2017-08-24

Electric power supply system, control device, vehicle, and engine generator unit for driving vehicle

#46
20170244348
2017-08-24

Current supply system, electric power supply system, and control device

#47
20170240053
2017-08-24

Transmission, control device, and vehicle

#48
20170163109
2017-06-08

Dynamoelectric machine including displaceable flux-guiding elements

#49
20170163108
2017-06-08

Electric machine having mechanical field weakening and including a fail-safe actuator system

#50
20170117786
2017-04-27

Flux control of permanent magnet electric machine

#51
20170025941
2017-01-26

Permanent magnet speed governor with fixed magnetic gap

#52
20150326101
2015-11-12

ROTARY ELECTRIC MACHINE

#53
20150270760
2015-09-24

Axial flux electric machine including an integral brake and methods of assembling the same

#54
20150200573
2015-07-16

Generator

#55
20140356135
2014-12-04

Gas turbine engine and electric machine

#56
20140125180
2014-05-08

Electric motor

#57
20140091746
2014-04-03

Electromagnetic pump compensation power supply apparatus and electromagnetic pump system

#58
20140069151
2014-03-13

MOTOR AND WASHING MACHINE HAVING THE SAME

#59
20130278095
2013-10-24

Hybrid induction motor with self aligning permanent magnet inner rotor

#60
20130200739
2013-08-08

Motor including a rotor and magnetic flux adjustment unit to change an amount of magnetic flux generated by the rotor

#61
20130162096
2013-06-27

Electric rotating machine

#62
20130162088
2013-06-27

Electric rotating machine

#63
20130154397
2013-06-20

HIGH EFFICIENCY MAGNETIC CORE ELECTRICAL MACHINES

#64
20130009584
2013-01-10

Voltage regulated permanent magnet machine

#65
20120293031
2012-11-22

COUPLER

#66
20120286615
2012-11-15

Permanent magnet motor with field weakening

#67
20120176005
2012-07-12

Induction generator for a bi-cycle

#68
20120153763
2012-06-21

SYNCHRONOUS MOTOR

#69
20120126740
2012-05-24

Permanent magnet motor with field weakening

#70
20120074913
2012-03-29

Windmill generator with mechanically tuneable permanent magnetic field

#71
20110304235
2011-12-15

Permanent magnet electric motor

#72
20110215668
2011-09-08

Magnetic transmission assembly

#73
20110175478
2011-07-21

Permanent magnet electric motor inducing short circuit current in short circuit coil

#74
20110133592
2011-06-09

Rotary electrical machine

#75
20110109185
2011-05-12

HIGH EFFICIENCY MAGNETIC CORE ELECTRICAL MACHINE

#76
20110101817
2011-05-05

VARIABLE GEOMETRY ELECTRIC MACHINE

#77
20110101815
2011-05-05

Electric motor or generator with mechanically tuneable permanent magnetic field

#78
20110101814
2011-05-05

Reconfigurable inductive to synchronous motor

#79
20110101812
2011-05-05

Electric motor and/or generator with mechanically tuneable permanent magnetic field

#80
20110101811
2011-05-05

Reconfigurable inductive to synchronous motor

#81
20100259208
2010-10-14

Electric machine and control method

#82
20100026228
2010-02-04

Variable field permanent magnet dynamoelectric machine

#83
20090224625
2009-09-10

Rotary electrical machine

#84
20090045765
2009-02-19

Field controllable rotating electric machine system with magnetic excitation part

#85
20090026864
2009-01-29

Field controllable rotating electric machine system with flux shunt control

#86
20080185205
2008-08-07

Engine with attached axial gap type rotating electric machine

#87
20080169717
2008-07-17

Permanent magnet motor

#88
20080042509
2008-02-21

Method and apparatus for controlling an electric machine

#89
20060214526
2006-09-28

Rotating electric machine

#90
20060186754
2006-08-24

Rotating electrical machine

#91
20060152104
2006-07-13

Rotary electrical machine

#92
20060131984
2006-06-22

Hybrid induction motor

#93
15700046
2020-05-05

Magnetic motor with dynamic timing adjustment