ClassID:

217315

H02K9/18 - CPC Classification

Classification description:

Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing

Recent Application in this class:
#1
20260035082
2026-02-05

LOW SPOOL ELECTRICAL MACHINE ARRANGEMENTS FOR HYBRID-ELECTRIC ENGINES

#2
20250373103
2025-12-04

ELECTRICAL ENERGY-MECHANICAL ENERGY CONVERTER AND ELECTRICAL ENERGY-MECHANICAL ENERGY CONVERTER SYSTEM

#3
20250293571
2025-09-18

Motor Assembly and Heat Exchanger Apparatus

#4
20250264054
2025-08-21

SINGLE-TRANSPORT MOBILE ELECTRIC POWER GENERATION

#5
20250211082
2025-06-26

AUTONOMOUS PORTABLE POWER GENERATOR DEVICE

#6
20250211061
2025-06-26

ELECTRIC PROPULSION UNIT

#7
20250192644
2025-06-12

DRIVING UNIT OF WEARABLE DEVICE

#8
20250183751
2025-06-05

DIRECTED AIR VENTILATION FOR LOWERING TEMPERATURE IN ENCLOSED GENERATORS

#9
20250141309
2025-05-01

Support and Heatsink for an Independent Cart System

#10
20250090887
2025-03-20

ELECTRIC FULL BODY FITNESS EQUIPMENT

#11
20250015664
2025-01-09

DEFLECTOR COVER FOR ROTATING ELECTRIC MACHINE, MODULAR SETS FOR DEFLECTOR COVERS, CORRESPONDING ROTATING ELECTRIC MACHINE AND METHODS OF CONVERTING THE VENTILATION MODE OF A ROTATING ELECTRIC MACHINE

#12
20240405640
2024-12-05

HIGH CURRENT DENSITY ELECTRIC MACHINE

#13
20240344559
2024-10-17

ACTIVE MAGNETIC BEARING APPARATUS

#14
20240243642
2024-07-18

GENERATOR ENCLOSURE WITH FIRE DAMPER

#15
20240204618
2024-06-20

ROTARY MACHINE

#16
20240188269
2024-06-06

LINEAR HEAD MODULE AND ELECTRONIC COMPONENT MOUNTING APPARATUS

#17
20240162784
2024-05-16

COOLING DEVICE FOR AN ELECTRIC DRIVE TRAIN COMPONENT, ELECTRIC DRIVE TRAIN ASSEMBLY, METHOD FOR OPERATING A COOLING DEVICE, METHOD FOR COOLING AN ELECTRIC DRIVE TRAIN COMPONENT, AND VEHICLE

#18
20240115964
2024-04-11

MODEL VEHICLE ELECTRONIC COOLING SYSTEM AND METHOD

#19
20240097546
2024-03-21

MAGNETIC GEARED ELECTRICAL MACHINE AND POWER GENERATION SYSTEM USING THE SAME

#20
20230387752
2023-11-30

COOLING SYSTEM FOR AN ELECTRIC TRACTION MACHINE FOR A MOTOR VEHICLE

#21
20230365264
2023-11-16

THERMAL MANAGEMENT SYSTEM FOR AN AIRCRAFT INCLUDING AN ELECTRIC PROPULSION ENGINE

#22
20230340945
2023-10-26

COOLING CIRCUIT FOR AN ELECTRIC GENERATOR

#23
20230328934
2023-10-12

Process integration in electrical power generation

#24
20230318405
2023-10-05

Rotary electric machine housing, rotary electric machine, and additive manufacturing method

#25
20230235785
2023-07-27

Active magnetic bearing apparatus

#26
20230071116
2023-03-09

Single-transport mobile electric power generation

#27
20230040452
2023-02-09

System for cooling a drive device with several electric machines

#28
20230012130
2023-01-12

COMPRESSOR WITH COOLING PUMP

#29
20220243705
2022-08-04

Heat exchange system and motor

#30
20220213874
2022-07-07

Cooling device, motor, and wind turbine set

#31
20220190673
2022-06-16

HEAT TRANSFER ARRAY AND THE ELECTRIC MACHINE MADE THEREWITH

#32
20220149700
2022-05-12

MULTI-FAN MOBILE GAS GENERATOR COOLING SYSTEM

#33
20220140704
2022-05-05

Generator enclosure with fire damper

#34
20220120317
2022-04-21

Active magnetic bearing apparatus

#35
20220069669
2022-03-03

Cooling of electrical generators in wind turbines

#36
20210320552
2021-10-14

System and methods for multiple configurations to cool an electric motor

#37
20210281141
2021-09-09

Cooling enclosure and motor

#38
20210123379
2021-04-29

Generator with air-cycle cooling

#39
20210099046
2021-04-01

Wind power generation unit, electric motor, and airflow delivery device for electric motor air gap

#40
20210025324
2021-01-28

Single-transport mobile electric power generation

#41
20200389069
2020-12-10

Rotary device with a fan mounted outside a housing to introduce external air into the housing

#42
20200376687
2020-12-03

Parallel integrated drive mechanism

#43
20200373808
2020-11-26

Electric motor assembly

#44
20200368575
2020-11-26

Systems and methods for cooling an exercise device

#45
20200321846
2020-10-08

Stator module and planar drive system

#46
20200303995
2020-09-24

Work device with air-cooled linear motor

#47
20200232506
2020-07-23

Active magnetic bearing apparatus

#48
20200177116
2020-06-04

Motor drive system including removable bypass circuit and/or cooling features

#49
20200014285
2020-01-09

Inverter integrated motor

#50
20200014282
2020-01-09

Cooling module with axial fan and flow deflection region for vehicles

#51
20200003187
2020-01-02

Cooling a wind turbine generator

#52
20190393816
2019-12-26

Motor drive system and method

#53
20190393762
2019-12-26

Motor drive system including removable bypass circuit and/or cooling features

#54
20190393760
2019-12-26

Rotating electric machine

#55
20190393753
2019-12-26

Drive device

#56
20190386537
2019-12-19

Closed rotary electric machine comprising an internal cooling system

#57
20190334409
2019-10-31

Closed rotating electrical machine comprising an internal air cooling system of the magnets in the rotor

#58
20190313549
2019-10-10

MOTOR AND ELECTRIC POWER STEERING DEVICE

#59
20190312489
2019-10-10

Motor component, primary part and linear motor

#60
20190277264
2019-09-12

Generator for a wind turbine

#61
20190199162
2019-06-27

Rotary electric machine

#62
20190140518
2019-05-09

Operating a wind turbine generator cooling system

#63
20190131842
2019-05-02

METHOD FOR PRODUCING A CORONA SHIELD, FAST-CURING CORONA SHIELD SYSTEM, AND ELECTRIC MACHINE

#64
20190109514
2019-04-11

Rotating electrical machine, compressor system, and pump system

#65
20190101105
2019-04-04

Heat exchanger for an electrical machine

#66
20190089211
2019-03-21

Electric machine comprising a stator provided with an inner tubular sleeve

#67
20190074743
2019-03-07

Rotor and generator including the same

#68
20190027997
2019-01-24

Synchronous reluctance machine

#69
20180309345
2018-10-25

Electric machine with variable cooling system

#70
20180309343
2018-10-25

Electric motor with rotating first concentric cooling fins and second concentric fins on the housing

#71
20180269749
2018-09-20

Electrical machine with cooled busbars

#72
20180226861
2018-08-09

Motor controller can with synthetic housing and metal heat sink

#73
20180215587
2018-08-02

Elevator linear propulsion system with cooling device

#74
20180183301
2018-06-28

Electrical machine and method for cooling the electrical machine

#75
20180145574
2018-05-24

Axial flux machine

#76
20180123429
2018-05-03

Mechanical energy harvesting utilizing liquid rotor homopolar generator

#77
20180006531
2018-01-04

Internal closed loop cooling

#78
20170248146
2017-08-31

Blower assembly for a vehicle seat

#79
20170163125
2017-06-08

Electric machine with improved cooling

#80
20170141652
2017-05-18

Electric machine with air channels

#81
20170141651
2017-05-18

Rotary electric machine having gas coolers

#82
20160352181
2016-12-01

Stator comprising an integrated radiator

#83
20160329779
2016-11-10

Liquid-cooled motor device

#84
20160233743
2016-08-11

Electric motor with outer radiator and two separate cooling circuits

#85
20160134175
2016-05-12

AN AIR-TO-AIR HEAT EXCHANGER

#86
20160105067
2016-04-14

Centrally located control electronics for electric machine

#87
20150280520
2015-10-01

Electric machine and method for cooling an electric machine

#88
20150222159
2015-08-06

Internal closed loop cooling

#89
20150115753
2015-04-30

Rotating electric machine including a cooling device for cooling a fluid in the rotating electric machine

#90
20150015096
2015-01-15

Electric machine stator cooling system

#91
20140333163
2014-11-13

Embedded permanent magnet rotary electric machine

#92
20140232219
2014-08-21

Cooling arrangement for a motor assembly and method of cooling a motor assembly

#93
20140217840
2014-08-07

External cooling tube arrangement for a stator of an electric motor

#94
20140191597
2014-07-10

Enhanced cooling of enclosed air cooled high power motors

#95
20140183990
2014-07-03

ARRANGEMENT AND METHOD FOR COOLING AN ELECTRIC MACHINE

#96
20140028124
2014-01-30

Electric machine

#97
20130221774
2013-08-29

Cooling of an electric machine

#98
20130171923
2013-07-04

Electric machine cooling system

#99
20130169076
2013-07-04

Electric machine cooling system

#100
20130119796
2013-05-16

Rotary electric machine

#101
20130119795
2013-05-16

Totally-enclosed fan-cooled motor

#102
20120326540
2012-12-27

Motor unit

#103
20120261098
2012-10-18

HEAT EXCHANGER

#104
20120222844
2012-09-06

ROTATING MACHINE APPARATUS

#105
20120194014
2012-08-02

System and method for increasing airflow in electric machines

#106
20120119602
2012-05-17

Cooling of permanent magnet electric machine

#107
20120062057
2012-03-15

Traction motor

#108
20110254391
2011-10-20

Electrical motor having radially offset cooling stream and cooling method

#109
20110227433
2011-09-22

Electrical motor apparatus having improved cooling system

#110
20100237727
2010-09-23

Arrangement and method for cooling an electrical machine

#111
20100186307
2010-07-29

Acoustic alternator delimitation

#112
20100181848
2010-07-22

Linear motor, linear motor system, and electronic-circuit-component mounting machine including the linear motor

#113
20100156207
2010-06-24

System and method for managing air flow in a motor

#114
20100126703
2010-05-27

Motor device with heat dissipating capability

#115
20100033042
2010-02-11

Totally enclosed heat pipe cooled motor

#116
20100026145
2010-02-04

SEALED TYPE ELECTRIC ROTATING MACHINE

#117
20090230791
2009-09-17

DRIVE UNIT HAVING OPTIMIZED COOLING

#118
20080238224
2008-10-02

Electrical appliance

#119
20060244266
2006-11-02

Electrical power generation system and method for mitigating corona discharge

#120
20060113802
2006-06-01

Electrical power generation system and method for mitigating corona discharge

#121
20060076841
2006-04-13

System for ventilating a motor

#122
20060055256
2006-03-16

Method for ventilating a motor

#123
20060055254
2006-03-16

System and method for managing air flow in a motor

#124
20050206166
2005-09-22

Electrical power generation system and method for mitigating corona discharge

#125
20050140230
2005-06-30

Electric motor and vehicle powered thereby

#126
17662033
2023-02-28

Process integration in electrical power generation

#127
17153058
2023-06-06

High specific power electrical machine

#128
17088888
2024-11-12

Energy recovery system for diesel locomotives

#129
16453159
2020-11-10

Multi-facet partial air deflector