ClassID:

217312

H02K9/12 - 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 wherein the cooling medium circulates freely within the casing

Recent Application in this class:
#1
20260149346
2026-05-28

SYSTEM AND APPARATUS FOR SEGMENTED AXIAL FIELD ROTARY ENERGY DEVICE

#2
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ELECTRIC VEHICLE

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20250364871
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INTEGRAL EXPANDER GENERATOR FOR HYDROGEN APPLICATIONS WITH MAGNETIC BEARINGS

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Motor Assembly and Heat Exchanger Apparatus

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SYSTEM AND APPARATUS FOR SEGMENTED AXIAL FIELD ROTARY ENERGY DEVICE

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2025-03-20

COOLANT SUPPLY SYSTEM FOR AN ELECTRIC VEHICLE AXLE DRIVE

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2025-03-20

SYSTEM AND APPARATUS FOR SEGMENTED AXIAL FIELD ROTARY ENERGY DEVICE

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MOTOR RADIATOR

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ELECTRIC VEHICLE

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SYSTEM AND APPARATUS FOR SEGMENTED AXIAL FIELD ROTARY ENERGY DEVICE

#11
20220294304
2022-09-15

ELECTRIC MACHINE

#12
20220200369
2022-06-23

Air gap baffle train for a zone cooled turbine generator

#13
20220181947
2022-06-09

ENCLOSED ELECTRIC MACHINE WITH EXTERNAL LIQUID COOLING CIRCUIT

#14
20220109344
2022-04-07

Deflector for rotating electrical machine

#15
20220077739
2022-03-10

System and apparatus for segmented axial field rotary energy device

#16
20210324836
2021-10-21

Generator, heat exchange device for shaft system thereof, and wind turbine

#17
20210297023
2021-09-23

Generator cooling

#18
20210273525
2021-09-02

Electric loss shunting in a chiller-compressor-motor-drive system

#19
20210099046
2021-04-01

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

#20
20210057950
2021-02-25

System and apparatus for segmented axial field rotary energy device

#21
20200358325
2020-11-12

Electrical machines with liquid cooling

#22
20200318883
2020-10-08

ROTARY MACHINE

#23
20200313585
2020-10-01

Fluid apparatus

#24
20200313499
2020-10-01

END TURN COOLING

#25
20200303993
2020-09-24

ORC turbine and generator, and method of making a turbine

#26
20200266678
2020-08-20

Generator with series stators, and series rotors separated by annular collars with cooling vents

#27
20200204025
2020-06-25

SYSTEM AND APPARATUS FOR MODULAR AXIAL FIELD ROTARY ENERGY DEVICE

#28
20200161911
2020-05-21

Rotating electric machine

#29
20200067385
2020-02-27

Rotating electrical machine including a magnetic position sensor

#30
20190238018
2019-08-01

System and apparatus for segmented axial field rotary energy device

#31
20190214886
2019-07-11

Turbogenerator rotor, turbogenerator, and methods of furnishing a turbogenerator with a baffle assembly

#32
20190214871
2019-07-11

SYSTEM AND APPARATUS FOR MODULAR AXIAL FIELD ROTARY ENERGY DEVICE

#33
20190207477
2019-07-04

SYSTEMS AND METHODS FOR REGULATING FLUID FLOW FOR INTERNAL COOLING AND LUBRICATION OF ELECTRIC MACHINES

#34
20190199162
2019-06-27

Rotary electric machine

#35
20190195364
2019-06-27

Shaft sealing device and electric rotary machine

#36
20190123612
2019-04-25

Electric machine

#37
20190103778
2019-04-04

Rotor segment of an electric machine

#38
20190074746
2019-03-07

SYSTEM, METHOD AND APPARATUS FOR MODULAR AXIAL FIELD ROTARY ENERGY DEVICE

#39
20190068027
2019-02-28

ORC turbine and generator, and method of making a turbine

#40
20190068017
2019-02-28

System and apparatus for axial field rotary energy device

#41
20190027996
2019-01-24

Electric machine with auxiliary blower mounting arrangement and/or modular exhaust assembly

#42
20180241286
2018-08-23

COOLING APPARATUS FOR AN ELECTRIC MACHINE

#43
20180198355
2018-07-12

System, method and apparatus for modular axial field rotary energy device

#44
20180198339
2018-07-12

System and apparatus for modular axial field rotary energy device

#45
20180198338
2018-07-12

System and apparatus for segmented axial field rotary energy device

#46
20180198327
2018-07-12

System and apparatus for axial field rotary energy device

#47
20180062483
2018-03-01

Heat exchanger for electric machines with double end to center cooling

#48
20170373564
2017-12-28

Electric motor with harmonic shunting

#49
20170338701
2017-11-23

Electric motors

#50
20170222520
2017-08-03

Compressor

#51
20170194840
2017-07-06

Systems and methods for regulating fluid flow for internal cooling and lubrication of electric machines

#52
20170149308
2017-05-25

Alternator with series fans

#53
20170081007
2017-03-23

Pod propulsion unit of a ship

#54
20170077786
2017-03-16

Electric machine

#55
20170063199
2017-03-02

Rotor assembly having improved cooling path

#56
20170051819
2017-02-23

System and method for reducing power train air resistance

#57
20170047806
2017-02-16

Rotor assembly

#58
20160344258
2016-11-24

ORC turbine and generator, and method of making a turbine

#59
20160329778
2016-11-10

Traction motor with cooling fan for improved cooling flow

#60
20160261171
2016-09-08

Drive apparatus for a wheel of a work machine

#61
20160134177
2016-05-12

LIQUID COOLED ELECTRIC MOTOR

#62
20160134174
2016-05-12

Heat dissipation apparatus for motors

#63
20160020672
2016-01-21

Negative pressure motor sealing

#64
20150364962
2015-12-17

Generator gas shield support device and method of removing generator gas shield

#65
20150322811
2015-11-12

ORC Turbine and Generator, And Method Of Making A Turbine

#66
20150267707
2015-09-24

Motor-driven turbo compressor

#67
20150207378
2015-07-23

Cooling jacket comprising a sealing means

#68
20150171707
2015-06-18

Two phase gap cooling of an electrical machine

#69
20150137633
2015-05-21

Ventilation structure for AC generator

#70
20150137631
2015-05-21

Drive module for a vehicle

#71
20150130304
2015-05-14

Electric machine

#72
20150115753
2015-04-30

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

#73
20150069866
2015-03-12

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

#74
20140339000
2014-11-20

System and method for reducing power train air resistance

#75
20140319934
2014-10-30

Shaft rotary type linear motor and shaft rotary type linear motor unit

#76
20140300221
2014-10-09

Electric motor

#77
20140265662
2014-09-18

Micro-channel heat exchanger integrated into stator core of electrical machine

#78
20130293042
2013-11-07

AIR-COOLED ELECTRICAL MACHINE

#79
20130249333
2013-09-26

Electric machine and method to retrofit an electric machine

#80
20130221774
2013-08-29

Cooling of an electric machine

#81
20130168964
2013-07-04

Waste heat recovery system generator encapsulation

#82
20130136629
2013-05-30

Subsea motor-compressor cooling system

#83
20130076168
2013-03-28

Dynamoelectric machine having air/liquid cooling

#84
20130058804
2013-03-07

Turbo compressor and compressor system comprising such a turbo compressor

#85
20130002065
2013-01-03

Totally-enclosed horizontal rotating electric machine

#86
20120266613
2012-10-25

Thermal system having electrical device

#87
20120266612
2012-10-25

THERMAL SYSTEM HAVING ELECTRICAL DEVICE

#88
20120235522
2012-09-20

Cooling system for an electrical machine

#89
20120153620
2012-06-21

Bidirectional pumping and energy recovery system

#90
20120146436
2012-06-14

Systems and methods for regulating fluid flow for internal cooling and lubrication of electric machines

#91
20120068561
2012-03-22

Air-cooled motor-generator and method for operating a motor-generator

#92
20120049669
2012-03-01

Systems and methods for fluid distribution for cooling and lubrication of electric machines

#93
20120049668
2012-03-01

Systems and methods for cooling and lubrication of electric machines

#94
20120049666
2012-03-01

Systems and methods for providing fluid for internal cooling and lubrication of electric machines

#95
20120049665
2012-03-01

Systems and methods for fluid cooling of electric machines

#96
20120025641
2012-02-02

Method and device for cooling an electric machine

#97
20110221289
2011-09-15

Radiator for power generator coil

#98
20110181137
2011-07-28

Permanent magnet type electric power generator

#99
20100078156
2010-04-01

System and method for cooling an electrical device in a closed air volume

#100
20100026110
2010-02-04

Method and device for cooling an electric machine

#101
20090284087
2009-11-19

Starter generator

#102
20090267426
2009-10-29

Liquid-cooled electric machine and method for cooling such electric machine

#103
20090072641
2009-03-19

Generator having a cooling flow bifurcation member and method for controlling a cooling flow

#104
20080309177
2008-12-18

Gas-cooled electrical device

#105
20080309175
2008-12-18

Electric motor cooling

#106
20080231125
2008-09-25

Turbo generator with exciter having pressure recovery

#107
20080224551
2008-09-18

Cooling an electrical machine

#108
20080030086
2008-02-07

Totally enclosed type main drive motor for vehicle

#109
20070108934
2007-05-17

Application of a switched reluctance motion control system in a chiller system

#110
20060145484
2006-07-06

Wind power installation with separate primary and secondary cooling circuits

#111
20050167989
2005-08-04

Wind power installation with separate primary and secondary cooling circuits

#112
20050116555
2005-06-02

Air gap baffle assembly for gas-cooled turbine generator and method of installing

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20050023909
2005-02-03

Automotive generator