ClassID:

144190

F04D29/058 - CPC Classification

Classification description:

Details, component parts, or accessories; Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps; Bearings magnetic; electromagnetic

Recent Application in this class:
#1
20260146620
2026-05-28

FAN

#2
20260146619
2026-05-28

FAN

#3
20260146618
2026-05-28

FAN

#4
20260146617
2026-05-28

ELECTROMAGNETIC ROTARY DRIVE

#5
20260071636
2026-03-12

VACUUM PUMP WITH AN EDDY CURRENT DAMPER

#6
20260028997
2026-01-29

TURBO COMPRESSOR AND TURBO CHILLER COMPRISING SAME

#7
20260009396
2026-01-08

RADIAL MAGNETIC BEARING, COMPRESSOR, AND REFRIGERATOR

#8
20250361872
2025-11-27

SEALING SYSTEM FOR MAGNETIC LEVITATING CENTRIFUGAL COMPRESSOR AND MAGNETIC LEVITATING CENTRIFUGAL COMPRESSOR

#9
20250305508
2025-10-02

MAGLEV AIR COMPRESSOR

#10
20250230818
2025-07-17

FAN DEVICE

#11
20250215809
2025-07-03

INTEGRAL MOTOR PUMP OR TURBINE WITH SENSORLESS MONITORING OF AXIAL BEARING WEAR

#12
20250189183
2025-06-12

TURBO CHILLER

#13
20250163962
2025-05-22

MAGNETIC BEARING AND COMPRESSOR

#14
20250137700
2025-05-01

CALIBRATING COMPRESSOR BEARING SYSTEMS

#15
20250084899
2025-03-13

AIR CYCLE MACHINE (ACM) WITH HYBRID AIRFOIL AND AUXILIARY MAGNETIC THRUST BEARINGS

#16
20250084860
2025-03-13

COMPRESSOR ASSEMBLY WITH HYBRID AIRFOIL AND AUXILIARY MAGNETIC BEARINGS

#17
20250020134
2025-01-16

TEMPERATURE RANGE EXTENSION FOR ELECTRIC COMPRESSOR

#18
20250020133
2025-01-16

Vacuum pump and adjustment method

#19
20240392797
2024-11-28

MONOLITHIC SHAFT FOR CRYOGENIC TURBO MACHINE, CRYOGENIC TURBO MACHINE AND METHOD FOR MANUFACTURING

#20
20240369065
2024-11-07

FAN

#21
20240352937
2024-10-24

MAGNETIC BEARING DEVICE AND VACUUM PUMP

#22
20240337267
2024-10-10

MAGNETIC BEARING DEVICE AND VACUUM PUMP

#23
20240182173
2024-06-06

MOTOR INCORPORATING MAGNETIC BEARINGS

#24
20240157071
2024-05-16

BEARING SLEEVE FOR BLOWER

#25
20240093701
2024-03-21

ROTOR ASSEMBLY FOR A TURBOMOLECULAR PUMP

#26
20230383757
2023-11-30

VACUUM PUMP AND VACUUM EXHAUST SYSTEM USING THE VACUUM PUMP

#27
20230366600
2023-11-16

Calibrating compressor bearing systems

#28
20230332625
2023-10-19

HARMONIC ELIMINATION CIRCUIT, POSITION DETECTION DEVICE, MAGNETIC BEARING DEVICE AND VACUUM PUMP

#29
20230313804
2023-10-05

VACUUM PUMP COMPRISING AN AXIAL MAGNETIC BEARING AND A RADIAL GAS FOIL BEARING

#30
20230228275
2023-07-20

SEALING SYSTEM FOR MAGNETIC LEVITATING CENTRIFUGAL COMPRESSOR AND MAGNETIC LEVITATING CENTRIFUGAL COMPRESSOR

#31
20230184262
2023-06-15

Fan device with stability maintenance assembly

#32
20230037800
2023-02-09

Integrated expander and motor-compressor assembly and closed loop cooling circuit comprising such an assembly

#33
20230018714
2023-01-19

Electric motor system, and turbo compressor provided with same

#34
20220403875
2022-12-22

Magnetic suspension bearing device, compressor and method of adjusting gap of catcher bearing

#35
20220403847
2022-12-22

Pump having opposing magnets between a rotor and stator, and related assemblies, systems, and methods

#36
20220333607
2022-10-20

VACUUM PUMP AND ACCESSORY UNIT OF VACUUM PUMP

#37
20220235777
2022-07-28

VACUUM PUMP AND PROTECTION MEMBER PROVIDED IN VACUUM PUMP

#38
20220224198
2022-07-14

TURBO COMPRESSOR

#39
20220220964
2022-07-14

Lubricant supply system and vacuum pump

#40
20220170473
2022-06-02

Control apparatus and vacuum pump provided with said control apparatus

#41
20220136744
2022-05-05

TURBO CHILLER

#42
20220074418
2022-03-10

Motor-driven compressor having a compression section mounted on a free end of a cantilvered shaft

#43
20220010805
2022-01-13

Thrust magnetic bearing and turbo compressor equipped with same

#44
20210396242
2021-12-23

System and method for magnetic bearings

#45
20210372471
2021-12-02

Hybrid magnetic radial bearing in an electric submersible pump (ESP) assembly

#46
20210372433
2021-12-02

VARIABLE GEOMETRY DIFFUSER HAVING EXTENDED TRAVEL AND CONTROL METHOD THEREOF

#47
20210302104
2021-09-30

Hybrid loop heat pipe with integrated magnetically levitating bearingless pump

#48
20210285453
2021-09-16

Flushing of a touchdown bearing

#49
20210254635
2021-08-19

SYSTEM FOR HYDROCARBON RECOVERY

#50
20210254627
2021-08-19

Compressor configured to control pressure against magnetic motor thrust bearings

#51
20210254626
2021-08-19

COMPRESSOR AND CHILLER INCLUDING THE SAME

#52
20210222586
2021-07-22

Support assembly for a rotary machine

#53
20210172446
2021-06-10

Vacuum pump and temperature control device

#54
20210148368
2021-05-20

Automated fan inlet damper closure apparatus

#55
20210123449
2021-04-29

Vacuum pump, and control device of vacuum pump

#56
20210115930
2021-04-22

Turbo-compressor and method of operating a turbo-compressor

#57
20210115929
2021-04-22

Turbo compressor

#58
20210108646
2021-04-15

Electric motor system and turbo compressor provided therewith

#59
20210010719
2021-01-14

Turbo compressor and centrifugal chiller comprising same

#60
20210010536
2021-01-14

Thrust magnetic bearing and turbo-compressor with same

#61
20200400148
2020-12-24

Motor assembly and method for manufacturing the same

#62
20200392961
2020-12-17

Fan

#63
20200292293
2020-09-17

Method for calibrating gap sensor

#64
20200259394
2020-08-13

Magnetic bearing motor compressor

#65
20200248696
2020-08-06

Pump having magnets for journaling and magnetically axially positioning rotor thereof, and related methods

#66
20200235635
2020-07-23

Magnetic levitation bearing, magnetic levitation rotor support assembly, and compressor

#67
20200224663
2020-07-16

Time lapse shooting apparatus and observation method

#68
20200208509
2020-07-02

Controlling downhole-type rotating machines

#69
20200208471
2020-07-02

Downhole blower system with pin bearing

#70
20200182252
2020-06-11

Rotation driving device, method for mounting rotation driving device, axial blower, method for mounting axial blower, and laser oscillator

#71
20200158118
2020-05-21

Vacuum pump, magnetic bearing device, and rotor

#72
20200158117
2020-05-21

VACUUM PUMP, AND MAGNETIC BEARING PORTION AND SHAFT PROVIDED IN VACUUM PUMP

#73
20200141415
2020-05-07

PUMP MONITORING DEVICE, VACUUM PROCESSING DEVICE, AND VACUUM PUMP

#74
20200116155
2020-04-16

Vacuum pump with a rotary body in a case with the rotary body having at least three balance correction portions accessible from an outside of the case for balance correction by an n-plane method

#75
20200109715
2020-04-09

Surge wear predictor for a turbocharger

#76
20200072030
2020-03-05

Downhole blower system with a passive magnetic radial bearing assembly

#77
20200018527
2020-01-16

Chiller motor with cooling flow path

#78
20200011336
2020-01-09

Vacuum pump, rotating portion included in vacuum pump, and imbalance correction method

#79
20190376521
2019-12-12

CENTRIFUGAL COMPRESSOR

#80
20190338785
2019-11-07

Variable geometry diffuser having extended travel and control method thereof

#81
20190338783
2019-11-07

DUAL-IMPELLER DRIVING DEVICE AND LIQUID-COOLING HEAT DISSIPATION DEVICE WITH SAME

#82
20190323515
2019-10-24

Two-stage centrifugal compressor

#83
20190309765
2019-10-10

Nitrogen purge of compressor dry seal

#84
20190277300
2019-09-12

Compressor and chiller system including same

#85
20190249677
2019-08-15

Magnetic levitation control device and vacuum pump

#86
20190234417
2019-08-01

Water pump

#87
20190203730
2019-07-04

THRUST BEARING PLACEMENT FOR COMPRESSOR

#88
20190170151
2019-06-06

Magnetic bearing device and fluid machine system using same

#89
20190085902
2019-03-21

Magnetic levitation bearing assembly and compressor

#90
20190074749
2019-03-07

Magnetic bearing motor compressor

#91
20190063461
2019-02-28

Refrigerant gas cooling of motor and magnetic bearings

#92
20190063444
2019-02-28

Axleless fan device

#93
20190063257
2019-02-28

Turbomachine systems with magnetic bearing cooling and method

#94
20190055949
2019-02-21

Turbo-molecular pump

#95
20190048884
2019-02-14

Magnetic bearing for a turbomachine

#96
20190041124
2019-02-07

Integrated expander-motor compressor

#97
20190040866
2019-02-07

Vacuum pump

#98
20180363668
2018-12-20

ROTARY MACHINE INCLUDING ACTIVE MAGNETIC BEARING

#99
20180363662
2018-12-20

Vacuum pump, and rotor blade and reflection mechanism mounted in vacuum pump

#100
20180355891
2018-12-13

Rotating machine

#101
20180328375
2018-11-15

Compressor

#102
20180306204
2018-10-25

Power source integrated vacuum pump having a power source with a substrate in contact with and covering a portion of a cooling surface which is also covered by a heat insulating plate

#103
20180291957
2018-10-11

Magnetic bearing device and compressor

#104
20180291926
2018-10-11

Vacuum pump control device

#105
20180283400
2018-10-04

Vacuum pump

#106
20180274556
2018-09-27

Center ring and vacuum pump

#107
20180274548
2018-09-27

Auxiliary turbomachinery shaft support system and turbomachinery comprising said system

#108
20180231006
2018-08-16

Oil free centrifugal compressor for use in low capacity applications

#109
20180223869
2018-08-09

Turbomachine and method of operating a turbomachine

#110
20180216665
2018-08-02

Magnetic bearing control device and vacuum pump

#111
20180216664
2018-08-02

System and method for functional validation of modular automatic control device for rotating apparatus

#112
20180209434
2018-07-26

SUBSEA CENTRIFUGAL COMPRESSOR WITH HORIZONTAL SHAFT AND WITH ONLY ONE AXIAL THRUST BEARING

#113
20180180055
2018-06-28

Downhole blower system with pin bearing

#114
20180180054
2018-06-28

Time lapse shooting apparatus and observation method

#115
20180179872
2018-06-28

Downhole blower system with passive radial bearings

#116
20180179861
2018-06-28

Integrated control of downhole and surface blower systems

#117
20180156223
2018-06-07

Cooling system for cooling a motorcompressor unit

#118
20180128280
2018-05-10

ROTOR AND VACUUM PUMP EQUIPPED WITH SAME

#119
20180080430
2018-03-22

Integrated turbomachine with an axial locking device

#120
20180073779
2018-03-15

CENTRIFUGAL COMPRESSOR

#121
20180073516
2018-03-15

System and method for measuring bending mode frequencies

#122
20180058460
2018-03-01

Compressor and the compressor controlling method

#123
20180038617
2018-02-08

Compressor with motor cooling

#124
20180038380
2018-02-08

Centrifugal compressor having a casing with an adjustable clearance and connections for a variable flow rate cooling medium, impeller clearance control apparatus for centrifugal compressor, and impeller clearance control method for centrifugal compressor

#125
20180030989
2018-02-01

Rotary machine including active magnetic bearing

#126
20180023584
2018-01-25

Centrifugal compressor and magnetic bearing backup system for centrifugal compressor

#127
20170346356
2017-11-30

Vacuum pump

#128
20170328373
2017-11-16

Compressor having a sealing channel

#129
20170328369
2017-11-16

Motor compressor unit with magnetic bearings

#130
20170306967
2017-10-26

Monitoring device and vacuum pump

#131
20170298955
2017-10-19

SYSTEM AND METHOD FOR RAPID PRESSURIZATION OF A MOTOR/BEARING COOLING LOOP FOR A HERMETICALLY SEALED MOTOR/COMPRESSOR SYSTEM

#132
20170268519
2017-09-21

Magnetic levitation vacuum pump

#133
20170248166
2017-08-31

Vacuum pump and abnormality cause estimating method for vacuum pump

#134
20170211595
2017-07-27

Extracting dry gas from a wet-gas compressor

#135
20170198720
2017-07-13

Centrifugal compressor with liquid injection

#136
20170198707
2017-07-13

Centrifugal compressor with hot gas injection

#137
20170184113
2017-06-29

Monitoring device

#138
20170152893
2017-06-01

Cooling system for axial magnetic bearing

#139
20170146271
2017-05-25

TURBO CHILLER

#140
20170097006
2017-04-06

Centrifugal compressor with surge prediction

#141
20170097005
2017-04-06

Centrifugal compressor with surge control

#142
20170089351
2017-03-30

Elongated permanent ring management with a plurality of axially directed magnetized zones and magnetic bearing with such a ring magnet

#143
20170082119
2017-03-23

HERMETIC MOTOR COOLING AND CONTROL

#144
20170074275
2017-03-16

Control system and method for centrifugal compressor

#145
20170051758
2017-02-23

FAN ASSEMBLY

#146
20170040868
2017-02-09

Homopolar, flux-biased hysteresis bearingless motor

#147
20170012491
2017-01-12

Electromagnetic rotary drive

#148
20160377326
2016-12-29

Method of producing refrigeration with R1233zd

#149
20160377086
2016-12-29

COMPRESSOR AND CHILLER SYSTEM INCLUDING A COMPRESSOR

#150
20160312690
2016-10-27

Compressor and motor vehicle

#151
20160290351
2016-10-06

Magnetic bearing device and vacuum pump

#152
20160290345
2016-10-06

Motor-compressor with stage impellers integrated in the motor-rotors

#153
20160265545
2016-09-15

Expander-integrated compressor, refrigerator and operating method for refrigerator

#154
20160252099
2016-09-01

Magnetic bearing device, and vacuum pump having same

#155
20160222981
2016-08-04

Multistage centrifugal compressor

#156
20160195100
2016-07-07

Device for generating a dynamic axial thrust to balance the overall axial thrust of a radial rotating machine

#157
20160177954
2016-06-23

MULTI-STAGE CENTRIFUGAL COMPRESSOR AND AIR CONDITIONING UNIT

#158
20160153492
2016-06-02

Magnetic bearing, apparatus comprising such a magnetic bearing and method for manufacturing such a magnetic bearing

#159
20160123388
2016-05-05

Rotating machine with at least one active magnetic bearing and spaced auxiliary rolling bearings

#160
20160102705
2016-04-14

Rotating machine with at least one active magnetic bearing and auxiliary rolling bearings

#161
20160102672
2016-04-14

BEARING STRUCTURE AND FAN THEREOF

#162
20160097398
2016-04-07

Vacuum pump

#163
20160069391
2016-03-10

Vacuum pump

#164
20160061210
2016-03-03

Turbo compressor and turbo chiller using same

#165
20160053765
2016-02-25

Battery monitoring system

#166
20150345499
2015-12-03

Vacuum pump

#167
20150303836
2015-10-22

Electromagnetic rotating device and vacuum pump equipped with electromagnetic rotating device

#168
20150292515
2015-10-15

Vacuum pump with back-up bearing contact sensor

#169
20150292330
2015-10-15

Method of making a turbomachine

#170
20150285242
2015-10-08

Controlling a gas compressor having multiple magnetic bearings

#171
20150275911
2015-10-01

Compact turbomachine with magnetic bearings and auxiliary bearings

#172
20150275902
2015-10-01

Vacuum pump

#173
20150260221
2015-09-17

Rotary machine, bearing and method for manufacturing a rotary machine

#174
20150240829
2015-08-27

Rotor and vacuum pump equipped with same

#175
20150226467
2015-08-13

Motor cooling method for a compressor

#176
20150219106
2015-08-06

TURBO COMPRESSOR

#177
20150167687
2015-06-18

Centrifugal compressor

#178
20150165391
2015-06-18

Aeration device, a use thereof, and water purification installation with such an aeration device

#179
20150159662
2015-06-11

Efficient and reliable subsea compression system

#180
20150132109
2015-05-14

Vacuum pump

#181
20150078881
2015-03-19

Arrangement with a vacuum pump and method of compensating magnetic field produced by magnetic interference field of at least one vacuum pump component

#182
20150068243
2015-03-12

Multiple-axis magnetic bearing and control of the magnetic bearing with active switch topologies

#183
20150054389
2015-02-26

Homopolar permanent-magnet-biased action magnetic bearing with an integrated rotational speed sensor

#184
20150050170
2015-02-19

Magnetic bearing device and vacuum pump

#185
20150010383
2015-01-08

Centrifugal compressor diffuser control

#186
20140377106
2014-12-25

Sensorless magnetic levitation vacuum pump and sensorless magnetic levitation device

#187
20140363321
2014-12-11

Magnetic bearing device and compressor

#188
20140363311
2014-12-11

Hermetic motor cooling and control

#189
20140360006
2014-12-11

Method of dynamic balancing for magnetic levitation molecular pump

#190
20140356126
2014-12-04

Method and system for synchronously inhibiting subcritical vibrations of magnetic levitation molecular pump rotor

#191
20140328667
2014-11-06

Variable geometry diffuser having extended travel and control method thereof

#192
20140314570
2014-10-23

Method of dynamic balancing for magnetic levitation molecular pump

#193
20140308128
2014-10-16

Fan system

#194
20140303780
2014-10-09

Method for controlling a gas compressor having a magnetic bearing

#195
20140234139
2014-08-21

Compressor having biased controlled magnetic bearings

#196
20140227079
2014-08-14

Midspan active magnetic bearing

#197
20140219841
2014-08-07

Magnetic bearing device and vacuum pump

#198
20140216087
2014-08-07

Compressor clearance control

#199
20140212312
2014-07-31

Magnetic bearing device and vacuum pump

#200
20140210385
2014-07-31

Motor driving device and vacuum pump

#201
20140199179
2014-07-17

Hybrid magnetic suspension of a rotor

#202
20140154102
2014-06-05

Circulating dielectric oil cooling system for canned bearings and canned electronics

#203
20140131018
2014-05-15

Indoor device for an air conditioner

#204
20140112774
2014-04-24

Centrifugal gas compressor magnetic bearing thrust collar with mounting pilots

#205
20140112773
2014-04-24

CENTRIFUGAL GAS COMPRESSOR WITH A HARDENED SHAFT FOR A BEARING SYSTEM

#206
20140037422
2014-02-06

System and cooling for rapid pressurization of a motor-bearing cooling loop for a hermetically sealed motor/compressor system

#207
20140030114
2014-01-30

System and apparatus for reducing thrust forces acting on a compressor rotor

#208
20140023534
2014-01-23

ELECTRIC CENTRIFUGAL COMPRESSOR FOR VEHICLES

#209
20140017078
2014-01-16

Auxiliary bearing landing guard

#210
20130318797
2013-12-05

Compressor thrust bearing surge protection

#211
20130229079
2013-09-05

Magnetic bearing control device and exhaust pump having magnetic bearing control device

#212
20130170943
2013-07-04

Hybrid bearing turbomachine

#213
20130164124
2013-06-27

Exhaust pump

#214
20130156544
2013-06-20

Compressor surge detection

#215
20130147296
2013-06-13

Magnetic levitation type vacuum pump and magnetic levitation device

#216
20130091869
2013-04-18

Integral compressor-expander

#217
20130039786
2013-02-14

Refrigerant compressor magnetic bearing

#218
20130039740
2013-02-14

Turbomachine wheel position control

#219
20130017062
2013-01-17

Turbo machine with magnetic bearings

#220
20120327210
2012-12-27

Time lapse shooting apparatus and observation method

#221
20120299412
2012-11-29

Methods and systems for oil free low voltage conduits

#222
20120288370
2012-11-15

FASTENING AN AXIAL BEARING DISK IN A MAGNETICALLY-MOUNTED TURBOMACHINE BY MEANS OF A SHRINK DISK CONNECTION

#223
20120263577
2012-10-18

Device for detecting the axial position of a rotary shaft and its application to a turbo-molecular pump

#224
20120251351
2012-10-04

Gas Compressor Assembly

#225
20120171021
2012-07-05

Conduit for turbomachine and method

#226
20120107105
2012-05-03

Turbocompressor assembly with a cooling system

#227
20120100017
2012-04-26

Centrifugal compressor unit

#228
20120100011
2012-04-26

Control system for centrifugal compressor

#229
20120063918
2012-03-15

APPARATUS AND METHOD FOR DETERMINING CLEARANCE OF MECHANICAL BACK-UP BEARINGS OF TURBOMACHINERY UTILIZING ELECTROMAGNETIC BEARINGS

#230
20120062060
2012-03-15

Magnetic fan device

#231
20120018006
2012-01-26

MACHINE FOR FLUID TRANSPORTATION

#232
20110181140
2011-07-28

Apparatus Having a Stator and a Rotor Mounted in Said Stator

#233
20110176910
2011-07-21

Turbomolecular Pump with a Flexible Mount

#234
20110164974
2011-07-07

Compressor and method for operating a compressor and fuel cell device with a compressor

#235
20110158831
2011-06-30

FAN AND MOTOR THEREOF

#236
20110150628
2011-06-23

FLUID ENERGY MACHINE

#237
20110123358
2011-05-26

Vacuum pump

#238
20110123328
2011-05-26

VACUUM PUMP

#239
20110121671
2011-05-26

Single bearing motor with magnetic element

#240
20110044832
2011-02-24

Fluid energy machine

#241
20110044826
2011-02-24

Vacuum pump

#242
20110001377
2011-01-06

Canned or sleeved rotary machine and method of manufacturing it

#243
20100322798
2010-12-23

RAPIDLY ROTATING VACUUM PUMP

#244
20100232984
2010-09-16

Compressor Unit and Use of a Cooling Medium

#245
20100194225
2010-08-05

Self Sensing Integrated System and Method for Determining the Position of a Shaft in a Magnetic Bearing

#246
20100158718
2010-06-24

Oil-free centrifugal blade compressor and magnetic-gas bearing thereof

#247
20100124491
2010-05-20

Multistage radial turbocompressor

#248
20100080716
2010-04-01

ROTOR AND COOLING FAN HAVING THE SAME

#249
20100047096
2010-02-25

Turbo vacuum pump and semiconductor manufacturing apparatus having the same

#250
20100014990
2010-01-21

Compressor Unit

#251
20090311108
2009-12-17

Method for operation of a compressor unit, and associated compressor unit

#252
20090121571
2009-05-14

Magnetic levitation motor and pump

#253
20090097978
2009-04-16

FAN BLADE ASSEMBLY

#254
20090067983
2009-03-12

Centerline compression turbine engine

#255
20090041582
2009-02-12

Cooling fan with balance structure

#256
20090015012
2009-01-15

Axial in-line turbomachine

#257
20080292469
2008-11-27

Centrifugal air compressor

#258
20080245082
2008-10-09

Lubrication system for touchdown bearings of a magnetic bearing compressor

#259
20080238228
2008-10-02

MAGNETIC SHAFT OF A COOLING FAN

#260
20080231130
2008-09-25

Magnetic repulsion type bearing

#261
20080231128
2008-09-25

Magnetic bearing device with an improved vacuum feedthrough

#262
20080206079
2008-08-28

Turbo-molecular pump and touchdown bearing device

#263
20080185928
2008-08-07

Rotor shaft for a magnetic bearing device

#264
20080181548
2008-07-31

Magnetic Suspension Bearing

#265
20080169733
2008-07-17

Fan and motor thereof

#266
20080131288
2008-06-05

Vacuum pump

#267
20080115527
2008-05-22

High capacity chiller compressor

#268
20080088398
2008-04-17

Magnetic bearing system

#269
20080074010
2008-03-27

Fan with active magnetic bearing

#270
20080036321
2008-02-14

MAGNETIC FLOATING SHAFT SET AND APPARATUS USING SAME

#271
20080019628
2008-01-24

Touchdown bearing

#272
20070246002
2007-10-25

Compressor for fuel cell

#273
20070212238
2007-09-13

Rotodynamic Fluid Machine

#274
20070196215
2007-08-23

Motor compressor

#275
20070188966
2007-08-16

Magnetic bearing device and a turbo molecular pump with the magnetic bearing device mounted thereto

#276
20070172363
2007-07-26

Centrifugal motor-compressor unit

#277
20070145929
2007-06-28

Vacuum pump

#278
20070110601
2007-05-17

Compressor Unit Comprising a Centrifugal Compressor and an Electric Motor

#279
20070110596
2007-05-17

Methods and apparatus for transporting natural gas through a pipeline

#280
20070101755
2007-05-10

Air refrigerant cooling apparatus and air refrigeration system using the air refigerant cooling apparatus

#281
20070069597
2007-03-29

Fuel-cell compressed-air supplying device

#282
20060157251
2006-07-20

Subsea compressor module and a method for controlling the pressure in such a subsea compressor module

#283
20060140794
2006-06-29

Vacuum pumping arrangement

#284
20060091749
2006-05-04

Motor with single bearing

#285
20050265834
2005-12-01

Fan structure

#286
20050223737
2005-10-13

Centrifugal compressor

#287
20050198956
2005-09-15

Exhaust gas turbocharger

#288
20050140228
2005-06-30

Magnetic bearing system

#289
20050042118
2005-02-24

Turbo vacuum pump and semiconductor manufacturing apparatus having the same

#290
20050025640
2005-02-03

Vacuum pump and semiconductor manufacturing apparatus

#291
20050019170
2005-01-27

Compressor apparatus and method for the operation of the same

#292
17955256
2023-11-07

Centrifugal compressor

#293
17467472
2023-01-03

Centrifugal fan noise-lowering structure