ClassID:

217311

H02K9/10 - CPC Classification

Classification description:

Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing

Sub-classes:
Recent Application in this class:
#1
20260112940
2026-04-23

SYSTEMS AND METHODS FOR COOLING USING INTEGRATION OF PRESSURE DIFFERENCE COOLING AND PULSATING HEAT PIPE

#2
20260106515
2026-04-16

Air Cooling System for Stand-Alone Vertical electrical motors

#3
20260069106
2026-03-12

DRIVE SYSTEM FOR A FLOOR CLEANER

#4
20260045857
2026-02-12

HEAT EXCHANGERS FOR ELECTRIC MACHINES AND RELATED METHODS OF OPERATION

#5
20260031683
2026-01-29

AXIAL-FLUX MACHINE WITH ROTOR COOLING ASSEMBLY

#6
20260031682
2026-01-29

DEVICE FOR CONDUCTING COOLING AIR ON A MOTOR MOUNT FOR A FAN MOTOR

#7
20260012061
2026-01-08

MAGNETIC LEVITATION MOTOR SEALING-COOLING APPARATUS FOR REFRIGERATION SYSTEM AND METHOD THEREFOR

#8
20250293571
2025-09-18

Motor Assembly and Heat Exchanger Apparatus

#9
20250222549
2025-07-10

INTEGRATED DUST EXTRACTOR AND POWER TOOL

#10
20250146424
2025-05-08

CLOSED BRAYTON CYCLE POWER GENERATION SYSTEM WITH COMPRESSOR DISCHARGE FLUID DRIVEN COOLING FLOW FOR COOLING ELECTRICAL HARDWARE

#11
20250112525
2025-04-03

ENHANCED COOLING SYSTEMS FOR ELECTROMAGNETIC COMPONENTS

#12
20250079943
2025-03-06

MOTOR RADIATOR

#13
20250072679
2025-03-06

Suction Head Provided With A Brush Motor Cooling Circuit

#14
20250023425
2025-01-16

SYSTEMS AND METHODS FOR COOLING MOTORS

#15
20240413711
2024-12-12

HYBRID LIQUID AND AIR COOLING OF HIGH-POWER PERMANENT MAGNET MACHINE ROTOR

#16
20240333120
2024-10-03

COOLING ARCHITECTURE FOR A CRYOGENIC AND SUPERCONDUCTING POWERTRAIN USING LIQUID HYDROGEN ON BOARD AND METHOD FOR MANAGING THE COOLING TEMPERATURE OF THE POWERTRAIN COMPONENTS

#17
20240333106
2024-10-03

ROTATING ELECTRIC MACHINE SYSTEM

#18
20240333105
2024-10-03

ROTATING ELECTRIC MACHINE SYSTEM

#19
20240213852
2024-06-27

Permanent magnet motor with air and water mixed cooling system

#20
20240123560
2024-04-18

Integrated dust extractor and power tool

#21
20240014709
2024-01-11

Superconducting Motor with Reduced Coil Stress

#22
20230369943
2023-11-16

Bearing cap heat sink system for an electric motor

#23
20230188024
2023-06-15

Hydrogen expander magnetic generator apparatus and method

#24
20230187990
2023-06-15

Electric machine

#25
20230163657
2023-05-25

Electric motor with air-gap sleeve

#26
20230109571
2023-04-06

GAS DRYER

#27
20230101634
2023-03-30

Stator assembly, electrical motor, wind power generator set and method for cooling stator assembly

#28
20230072165
2023-03-09

ROTARY ELECTRICAL MACHINE AND STATOR ASSEMBLY FOR SUCH MACHINE

#29
20230047487
2023-02-16

DUAL COOLING FAN INTERPOSED BETWEEN MOTOR CONTROLLER AND MOTOR HOUSING

#30
20230045503
2023-02-09

Bearing cap heat sink system for an electric motor

#31
20220407395
2022-12-22

Power electronics section of a starter-generator without a commutator

#32
20220399767
2022-12-15

GENERATOR, WIND TURBINE AND METHOD FOR COOLING A DIRECT DRIVE GENERATOR OF A WIND TURBINE

#33
20220393551
2022-12-08

Cooling device for rotary electric machine

#34
20220385224
2022-12-01

Control device for electric drive system

#35
20220314384
2022-10-06

Integrated dust extractor and power tool

#36
20220255411
2022-08-11

Rotary electric machine system

#37
20220255393
2022-08-11

Rotary electric machine system

#38
20220247262
2022-08-04

Rotating electric machine

#39
20220243705
2022-08-04

Heat exchange system and motor

#40
20220239198
2022-07-28

Localized immersion cooling enclosure with thermal efficiency features

#41
20220213874
2022-07-07

Cooling device, motor, and wind turbine set

#42
20220161420
2022-05-26

Actuator module with torque output control

#43
20220149699
2022-05-12

Method and equipment for cooling generators

#44
20220131445
2022-04-28

DRIVING DEVICE

#45
20220118402
2022-04-21

CARBON DIOXIDE ENVIRONMENTAL CONTROL SYSTEM

#46
20220069655
2022-03-03

Electric machine

#47
20220052571
2022-02-17

Enhancements to cooling means for axial flux generators

#48
20220042458
2022-02-10

Electric machine cooling of stator with tube

#49
20220037961
2022-02-03

Power systems and enclosures having improved cooling air flow

#50
20210367468
2021-11-25

Blocking element for rotor winding heads on turbogenerators with rotor cap with radial ventilation bores

#51
20210313863
2021-10-07

Slip ring, slip ring unit, electric machine, and wind turbine

#52
20210297023
2021-09-23

Generator cooling

#53
20210249935
2021-08-12

Electric machine with configurable stator/rotor cooling

#54
20210226511
2021-07-22

Cooling device for rotary electric machine

#55
20210199356
2021-07-01

Cooling fan for refrigerant cooled motor

#56
20210143707
2021-05-13

Supercritical CO2 cooled electrical machine

#57
20210083602
2021-03-18

Thyristor starter

#58
20210033111
2021-02-04

Motor and bearing cooling paths and a transfer tube for another cooling channel

#59
20210021163
2021-01-21

Stator assembly, electrical motor, wind power generator set and method for cooling stator assembly

#60
20210016478
2021-01-21

ELECTRIC ACTUATOR FOR DRIVING A HOTRUNNER VALVE PIN

#61
20210006126
2021-01-07

Reel motor with closed cooling circuit

#62
20200412205
2020-12-31

Motor cooling systems

#63
20200366149
2020-11-19

Device for driving a compressor with an insulation arrangement

#64
20200358325
2020-11-12

Electrical machines with liquid cooling

#65
20200347780
2020-11-05

Turbomachine, in particular for a fuel cell system, fuel cell system, method for operating a turbomachine, and method for operating a fuel cell system

#66
20200259405
2020-08-13

Electrical machine

#67
20200096220
2020-03-26

Load operation control system

#68
20200014281
2020-01-09

Sealing structure for peripheral area of generator fan

#69
20190372410
2019-12-05

Electrical machine having cooling features formed in a stator winding

#70
20190273423
2019-09-05

Wound rotor or stator and method for manufacturing same

#71
20190260268
2019-08-22

Radial counter flow jet cooling system

#72
20190245414
2019-08-08

Stator assembly for cooling an electric motor

#73
20190222089
2019-07-18

ELECTRIC MOTOR DRIVE INTEGRATION

#74
20190214885
2019-07-11

COOLING ARRANGEMENT USING AN ELECTROCHEMICAL CELL

#75
20190157964
2019-05-23

System having an electric machine with a cryogenic component, and a method for operating the system

#76
20190157956
2019-05-23

Electrical machine

#77
20190151796
2019-05-23

Carbon dioxide environmental control system

#78
20190074743
2019-03-07

Rotor and generator including the same

#79
20180375403
2018-12-27

System and method for cooling windings of generator rotor

#80
20180375393
2018-12-27

Dynamo-electric machine

#81
20180323672
2018-11-08

Electrical machine and method for manufacturing an electrical machine

#82
20180309345
2018-10-25

Electric machine with variable cooling system

#83
20180287463
2018-10-04

ROTARY ELECTRIC MACHINE

#84
20180257026
2018-09-13

Methods and systems for drying hydrogen gas used in hydrogen-cooled generators

#85
20180212494
2018-07-26

ELECTRICAL MACHINE

#86
20180191225
2018-07-05

Oil distribution element

#87
20180191224
2018-07-05

Media transport in rotor shaft

#88
20180138783
2018-05-17

Linear shaft motor

#89
20180119443
2018-05-03

Motor can seal and shaft

#90
20180117527
2018-05-03

ROTATING ELECTRICAL MACHINE GAS DRYER

#91
20180115218
2018-04-26

Radial counter flow jet cooling system

#92
20180115217
2018-04-26

Power train including cylinder block water jacket having motor cooling port

#93
20180094880
2018-04-05

Integrated pressure compensating heat exchanger and method

#94
20180073521
2018-03-15

COMPRESSOR DRIVING MOTOR AND COOLING METHOD FOR SAME

#95
20180064509
2018-03-08

SELF-ILLUMINATION DENTAL HANDPIECE

#96
20180034347
2018-02-01

Radial ventilation cooling structure for motor

#97
20180030853
2018-02-01

Vent system for load coupling guard

#98
20180006530
2018-01-04

Method for cooling a generator

#99
20170346369
2017-11-30

Stator for electric rotary machine

#100
20170338718
2017-11-23

Strain wave gearing with built-in motor

#101
20170310197
2017-10-26

Electric rotating machine and manufacturing method for electric rotating machine

#102
20170288500
2017-10-05

Stator assembly for an electric generator with accommodation space

#103
20170274520
2017-09-28

Power tool having an elongated housing supporting a power module

#104
20170250587
2017-08-31

LINEAR MOTOR

#105
20170250586
2017-08-31

Motor having internal coolant supply passage

#106
20170237327
2017-08-17

Outer rotor-type axial gap brushless motor

#107
20170214295
2017-07-27

Pod propulsion device and a method for cooling such

#108
20170214294
2017-07-27

Energy conversion apparatus

#109
20170214293
2017-07-27

Electric compressor

#110
20170201154
2017-07-13

Gear stabilization techniques

#111
20170194831
2017-07-06

Electromagnetic coupling for ESP motor

#112
20170187264
2017-06-29

Rotating electrical machine with rotor and stator, with a stator core including packet cores

#113
20170158298
2017-06-08

Pod propulsion device and a method for cooling such

#114
20170155292
2017-06-01

Permanent magnet electrical rotating machine with protection members arranged between permanent magnets and rotor cores

#115
20170126095
2017-05-04

Electric rotating machine

#116
20170104391
2017-04-13

INCREASING THE APPARENT POWER OF GAS-COOLED TURBOGENERATORS BY WAY OF INCREASED PRESSURE IN THE HOUSING

#117
20170082119
2017-03-23

HERMETIC MOTOR COOLING AND CONTROL

#118
20170081007
2017-03-23

Pod propulsion unit of a ship

#119
20170051944
2017-02-23

Remotely adjustable ventilation orifice plate

#120
20170033644
2017-02-02

Air gap baffle train for turbine generator

#121
20170025918
2017-01-26

Ring for an electric machine

#122
20170005548
2017-01-05

METHOD FOR COOLING AN ELECTRICITY GENERATOR AND DEVICE FOR PERFORMING SAID METHOD

#123
20170005545
2017-01-05

Totally-enclosed main motor

#124
20160344262
2016-11-24

Internal Ventilation System For An Electric Rotary Machine

#125
20160301286
2016-10-13

Stators for electrical machines

#126
20160261172
2016-09-08

Rotating electrical machine with removable air flow guides

#127
20160241111
2016-08-18

Device for deflecting at least a portion of a cooling fluid lowing axially in an intermediate space which is arranged between a rotor and a stator of a rotating electrical machine

#128
20160211726
2016-07-21

Method of achieving variable performance of an electric generator

#129
20160211725
2016-07-21

Variable performance electric generator

#130
20160211724
2016-07-21

Variable performance electric generator

#131
20160211722
2016-07-21

Electric generator with variable maximum efficiency

#132
20160211721
2016-07-21

Electric generator with variable maximum efficiency

#133
20160204680
2016-07-14

Electric machine with combined air and water cooling

#134
20160149471
2016-05-26

COOLING ARRANGEMENT

#135
20160129390
2016-05-12

Methods and systems for drying hydrogen gas used in hydrogen-cooled generators

#136
20160126791
2016-05-05

Rotating electric machine

#137
20160065036
2016-03-03

Wind turbine generator with gear unit cooling system including re-cooling

#138
20160056682
2016-02-25

Electric machine with rotor, stator and housing cooling passages

#139
20150329191
2015-11-19

Cooling arrangement for a propulsion unit

#140
20150318763
2015-11-05

Power generation system, power generation method

#141
20150303774
2015-10-22

Rotating electrical machine

#142
20150280521
2015-10-01

Cooling medium supply/discharge device and superconducting rotary machine including cooling medium supply/discharge device

#143
20150270754
2015-09-24

Dual-rotor electric rotating machine

#144
20150249374
2015-09-03

Rotating electrical machine

#145
20150226467
2015-08-13

Motor cooling method for a compressor

#146
20150207385
2015-07-23

Inspection device for a machine

#147
20150206635
2015-07-23

Magnetic field generating device and superconducting rotary machine comprising magnetic field generating device

#148
20150187477
2015-07-02

Coil, rotating electrical machine, and linear motor

#149
20150137631
2015-05-21

Drive module for a vehicle

#150
20150077933
2015-03-19

Electric machine with closed circuit air cooling

#151
20150077034
2015-03-19

Permanent magnet-type rotary electric machine and vehicle drive system

#152
20150015097
2015-01-15

CONDUCTION-COOLED SUPERCONDUCTING ROTATING MACHINE

#153
20140359969
2014-12-11

MOTOR APPARATUS AND CLEANER HAVING THE SAME

#154
20140333163
2014-11-13

Embedded permanent magnet rotary electric machine

#155
20140300221
2014-10-09

Electric motor

#156
20140246932
2014-09-04

Liquid-cooled rotary electric machine having axial end cooling

#157
20140217840
2014-08-07

External cooling tube arrangement for a stator of an electric motor

#158
20140152154
2014-06-05

Rotary electric machine

#159
20140028124
2014-01-30

Electric machine

#160
20140009014
2014-01-09

Direct-drive superconducting synchronous generator for a wind turbine

#161
20130257199
2013-10-03

Cooling arrangement using an electrochemical cell

#162
20130239578
2013-09-19

Internal thermal management for motor driven machinery

#163
20130119830
2013-05-16

Fluid-cooled electric machine

#164
20130076168
2013-03-28

Dynamoelectric machine having air/liquid cooling

#165
20130048246
2013-02-28

Integrated pressure compensating heat exchanger and method

#166
20130014518
2013-01-17

Refrigeration method and apparatus with a pulsating load

#167
20130009496
2013-01-10

Arrangement and method for cooling an electrical machine

#168
20130000332
2013-01-03

Method and equipment for pulsed charge cooling of a component of a tokomak

#169
20120326540
2012-12-27

Motor unit

#170
20120274159
2012-11-01

Cooling arrangement for an electric machine

#171
20120262021
2012-10-18

COMPACT HIGH POWER ALTERNATOR

#172
20120248903
2012-10-04

Superconducting machines

#173
20120217756
2012-08-30

Wind power generator with internal cooling circuit

#174
20120194014
2012-08-02

System and method for increasing airflow in electric machines

#175
20120025638
2012-02-02

Apparatus for cooling an electric machine

#176
20110278969
2011-11-17

Electrical machine with multiple cooling flows and cooling method

#177
20110241350
2011-10-06

Permanent magnetic rotating electric machine and wind power generating system

#178
20110210629
2011-09-01

Scavenging filter system for hydrogen-cooled dynamoelectric machines

#179
20110101801
2011-05-05

Forced cooling rotary electric machine

#180
20110025152
2011-02-03

Compact high power alternator

#181
20100326110
2010-12-30

Cooling circuit for removing waste heat from an electromechanical converter and power generating plant with a cooling circuit of this type

#182
20100289353
2010-11-18

Internal thermal management for motor driven machinery

#183
20100270875
2010-10-28

High-voltage bushing of a rotating electric machine

#184
20100264761
2010-10-21

Coil for a rotating electrical machine

#185
20100237727
2010-09-23

Arrangement and method for cooling an electrical machine

#186
20100205956
2010-08-19

Sealed engine/compressor housing comprising an adsorption element

#187
20100176670
2010-07-15

Machine cooling scheme

#188
20100133933
2010-06-03

Cooling arrangement for an electrical machine

#189
20100102655
2010-04-29

Arrangement for cooling of an electrical machine

#190
20100006265
2010-01-14

COOLING SYSTEM

#191
20100006264
2010-01-14

Motor cooling applications

#192
20100006262
2010-01-14

Motor cooling applications

#193
20090309434
2009-12-17

Multi phase generator arrangement

#194
20090058205
2009-03-05

Rotating electric machine

#195
20080169710
2008-07-17

Forced cooling rotary electric machine

#196
20080150375
2008-06-26

Electric power tool

#197
20080116754
2008-05-22

Devices, systems, and methods for producing an electric motor

#198
20080111433
2008-05-15

Devices and/or systems for mounting an auxiliary blower

#199
20080100159
2008-05-01

Apparatus for cooling stator lamination stacks of electrical machines

#200
20080042363
2008-02-21

ELECTRIC ROTATING MACHINE

#201
20080012437
2008-01-17

Rotary electric machine

#202
20070205677
2007-09-06

Dynamo-Electric Machine

#203
20070018516
2007-01-25

Internal thermal management for motor driven machinery

#204
20060197391
2006-09-07

Gas-cooled generator

#205
20060156793
2006-07-20

Skids, modules, and modular system for monitoring hydrogen-cooled generators

#206
20060091761
2006-05-04

Compact high power alternator

#207
20060017331
2006-01-26

Cooling system for linear motors

#208
20050285458
2005-12-29

Pressurized air-cooled rotating electrical machine and method of operating the same

#209
20050206249
2005-09-22

Electric rotating machine with bearing seals

#210
20050151430
2005-07-14

Cam locked air gap baffle assembly for a dynamoelectric machine

#211
20050135927
2005-06-23

Dynamo-electric machine

#212
20050035673
2005-02-17

Compact high power alternator

#213
19086051
2026-03-24

Closed brayton cycle shutdown control with isolated fluid reservoir for cooling electrical components

#214
18518509
2024-03-19

Adaptive cooling allocation system for multiple motors and junction motor assembly

#215
18398488
2024-11-05

Heat dissipation plate for electric machine

#216
14996317
2017-01-24

Thermal efficiency heat rate improvement over power generation and emissions control