ClassID:

144199

F04D29/102 - CPC Classification

Classification description:

Details, component parts, or accessories; Sealings; Shaft sealings especially adapted for elastic fluid pumps

Sub-classes:
Recent Application in this class:
#1
20260063136
2026-03-05

ROTOR, ROTARY MACHINE, AND METHOD FOR ASSEMBLING ROTOR

#2
20250361872
2025-11-27

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

#3
20250320875
2025-10-16

TURBOMOLECULAR PUMP

#4
20250075707
2025-03-06

TURBOPUMP CAPABLE OF BALANCING AXIAL THRUST

#5
20250020135
2025-01-16

TURBOMACHINE

#6
20240401597
2024-12-05

Charging system of a fuel cell

#7
20240263638
2024-08-08

SHAFT SEAL STRUCTURE, COMPRESSOR, AND REFRIGERATION APPARATUS

#8
20240229799
2024-07-11

UNDERWATER MOTOR PUMP

#9
20240200566
2024-06-20

SEALING ASSEMBLY FOR A SHAFT PASSAGE OPENING FOR A FAN

#10
20240026893
2024-01-25

SEALING GAS LEAKAGE RECOVERY AND SEALING GAS BOOSTING SYSTEM AND METHOD

#11
20230407873
2023-12-21

Turbo compressor assembly of a cooling machine

#12
20230383966
2023-11-30

Shaft seal for airtight rotatable guiding of a wave through a wall

#13
20230383757
2023-11-30

VACUUM PUMP AND VACUUM EXHAUST SYSTEM USING THE VACUUM PUMP

#14
20230332618
2023-10-19

FLUID MACHINE

#15
20230287894
2023-09-14

Sealing device, rotary machine, and design method for sealing device preliminary class

#16
20230279865
2023-09-07

Step seal for refrigerant compressors

#17
20230265858
2023-08-24

Turbo fluid machine

#18
20230228275
2023-07-20

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

#19
20230193920
2023-06-22

Compressor rotor having flow loop through tie bolt

#20
20230163661
2023-05-25

BLOWER MOTOR

#21
20230125483
2023-04-27

Compressor rotor structure

#22
20220412369
2022-12-29

Vacuum pump

#23
20220333609
2022-10-20

Baffle element, diffuser plate, and seal system incorporating a baffle element and a diffuser plate

#24
20220299039
2022-09-22

Rotating machine and mating ring included therein

#25
20220243737
2022-08-04

VACUUM ASSEMBLY AND VACUUM PUMP WITH AN AXIAL THROUGH PASSAGE

#26
20220220981
2022-07-14

Moisture removal system for electric compressor device

#27
20220213896
2022-07-07

Step seal for refrigerant compressors

#28
20220106967
2022-04-07

Combustible gas compressor

#29
20220099103
2022-03-31

Mechanical Seal Including Recovery Port For Use With Pumps

#30
20210340986
2021-11-04

Centrifugal compressor

#31
20210285461
2021-09-16

Single-shaft turbo compressor

#32
20210164479
2021-06-03

Hermetic blower for high-temperature gas

#33
20210156391
2021-05-27

Dynamic seal

#34
20210123357
2021-04-29

Seal assembly for use in gas turbine engines

#35
20210115941
2021-04-22

Boil-off gas compressor for LNG fueled ship

#36
20210088052
2021-03-25

Gas seal column pump

#37
20210079802
2021-03-18

Labyrinth seal with angled fins

#38
20200378389
2020-12-03

ELECTRIC SUPERCHARGER

#39
20200332802
2020-10-22

Rotary device

#40
20200232479
2020-07-23

Rotary machine

#41
20200182254
2020-06-11

Rotating machine and mating ring included therein

#42
20200132084
2020-04-30

Compressor

#43
20200102964
2020-04-02

Centrifugal compressor

#44
20190376520
2019-12-12

Gas compression device and method for manufacturing the same

#45
20190346046
2019-11-14

Intershaft seal assembly

#46
20190271325
2019-09-05

Rotating machine

#47
20190257317
2019-08-22

Shaft seal including an upstream non-contact part

#48
20190242407
2019-08-08

Gas turbine engine compressor

#49
20190154049
2019-05-23

Retention component for turbomachinery device

#50
20190093705
2019-03-28

Bearing apparatus, motor, and fan motor

#51
20190093504
2019-03-28

Axial retention of a fan shaft in a gas turbine engine

#52
20190078578
2019-03-14

Rotary machine and impeller

#53
20190072102
2019-03-07

Compressor system equipped for fugitive gas handling and fugitive gas system operating method

#54
20190055949
2019-02-21

Turbo-molecular pump

#55
20190003481
2019-01-03

Dry gas seal cooling arrangement and method

#56
20180355880
2018-12-13

Sealing device and rotating machine

#57
20180283393
2018-10-04

Centrifugal compressor

#58
20180274388
2018-09-27

Oil seal structure and compressing apparatus including the same

#59
20180266428
2018-09-20

Turbomachine with a balance drum and sleeve arrangement and method

#60
20180223857
2018-08-09

PUMPING SYSTEM WITH BARRIER FLUID DELIVERY CIRCUIT FOR DRY GAS SEALS

#61
20180209436
2018-07-26

Centrifugal compressor having equalizing vent to prevent grease from being pushed out of a bearing

#62
20180209434
2018-07-26

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

#63
20180209428
2018-07-26

Motorcompressor and method to improve the efficiency of a motorcompressor

#64
20180209290
2018-07-26

Gas turbine seal

#65
20180180185
2018-06-28

Intershaft seal assembly

#66
20180180057
2018-06-28

Downhole blower system with bearings and seals

#67
20180163873
2018-06-14

Seal assembly with detachable spacer members

#68
20180142694
2018-05-24

Centrifugal compressor having an inter-stage sealing arrangement

#69
20180119557
2018-05-03

Seal assembly

#70
20180106265
2018-04-19

Sealing structure and turbocharger

#71
20180058237
2018-03-01

Floating, non-contact seal with offset build clearance for load imbalance

#72
20170356331
2017-12-14

ELECTRIC COMPRESSOR

#73
20170335966
2017-11-23

SHAFT SEAL ARRANGEMENT FOR A FLUID MACHINE AND METHOD FOR SEALING A SHAFT OF A FLUID MACHINE

#74
20170328376
2017-11-16

COMPRESSOR INCLUDING A SEALING CHANNEL

#75
20170328373
2017-11-16

Compressor having a sealing channel

#76
20170234332
2017-08-17

Auxiliary shaft seal flushing system of a centrifugal pump and an axial flow pump

#77
20170211580
2017-07-27

Systems and methods for split coupled pump and jacking gland

#78
20170191487
2017-07-06

Compressor end head heating arrangement

#79
20170146029
2017-05-25

Multistage centrifugal pump

#80
20170114659
2017-04-27

TURBINE ENGINE COMPRESSOR WITH VARIABLE-PITCH BLADES

#81
20170058910
2017-03-02

Housing of a fluid energy machine

#82
20170037861
2017-02-09

Seal section with internal lubricant pump for electrical submersible well pump

#83
20170002826
2017-01-05

Turbocharger

#84
20170002825
2017-01-05

BALANCE PISTON WITH A SEALING MEMBER

#85
20160341208
2016-11-24

SEAL ADJUSTMENT DEVICE FOR AN OPERATING PUMP

#86
20160305450
2016-10-20

Multi-stage electric centrifugal compressor

#87
20160298639
2016-10-13

Front enclosure which is sealed during the modular dismantling of a turbojet with reduction gear

#88
20160290511
2016-10-06

SHAFT SEAL AND METHOD FOR PRODUCING SAME

#89
20160281744
2016-09-29

Blower provided with structure suppressing damage to shaft seal

#90
20160281741
2016-09-29

Heat shield for pressure casing

#91
20160265542
2016-09-15

Turbocharger and method

#92
20160265426
2016-09-15

Turbocharger with oil containment arrangement

#93
20160265386
2016-09-15

Turbocharger with low carbon steel shaft

#94
20160258485
2016-09-08

Bearing structure and air blower

#95
20160215786
2016-07-28

Reservoir egress fluid coupler

#96
20160201683
2016-07-14

Multistage radial compressor baffle

#97
20160177965
2016-06-23

Compressor assembly for turbocharger burst containment

#98
20160169040
2016-06-16

Secondary sealing system

#99
20160160872
2016-06-09

Turbocharger purge seal including axisymmetric supply cavity

#100
20160131150
2016-05-12

Sealing mechanism and turbo refrigerator

#101
20160130966
2016-05-12

Sealing arrangement for a gas turbine engine

#102
20160130962
2016-05-12

Flow machine

#103
20160123344
2016-05-05

Compressor having hollow shaft

#104
20160090991
2016-03-31

Thrust bearing as a seal

#105
20160061116
2016-03-03

Shaft seal system and a compressor having a corresponding shaft seal system

#106
20160040681
2016-02-11

THERMAL RETRACTING ACTUATOR

#107
20160032936
2016-02-04

Turbocharger compressor oil deflector and method

#108
20160025108
2016-01-28

Vane with sealed lattice in a shroud of an axial turbomachine compressor

#109
20150377358
2015-12-31

High temperature subsea dynamic seals

#110
20150354588
2015-12-10

CENTRIFUGAL COMPRESSOR

#111
20150337716
2015-11-26

Supercharger

#112
20150330402
2015-11-19

Sealing assembly for turbomachine

#113
20150330395
2015-11-19

Seal of a compressor rotor

#114
20150285260
2015-10-08

Rotor of a supercharging device

#115
20150267710
2015-09-24

Seal device and rotary machine

#116
20150260294
2015-09-17

Rotary machine

#117
20150240837
2015-08-27

Liner coupling pin

#118
20150240831
2015-08-27

Lubricant retainer for pump shaft bearing assembly

#119
20150176422
2015-06-25

Exhaust-gas turbocharger

#120
20150110621
2015-04-23

Finger-foil seals and gas turbine engines employing the same

#121
20150098800
2015-04-09

Turbocharger rotating assembly

#122
20150086343
2015-03-26

High damping labyrinth seal with helicoidal and helicoidal-cylindrical mixed pattern

#123
20150042044
2015-02-12

Sealing assembly

#124
20150037146
2015-02-05

TURBOCHARGER

#125
20150023785
2015-01-22

Coupling for directly driven compressor

#126
20150016958
2015-01-15

Vacuum pump

#127
20150016950
2015-01-15

DEVICE AND METHOD FOR DISCHARGING SEALING AIR IN A TURBOFAN ENGINE

#128
20150003957
2015-01-01

Turbine exhaust seal

#129
20140356145
2014-12-04

Centrifugal compressor having seal system

#130
20140348644
2014-11-27

Arrangement of a segmented retractable seal in a stator of a turbine

#131
20140341705
2014-11-20

Adjustable side liner for a pump

#132
20140167364
2014-06-19

Relating To Pump Seal Assemblies

#133
20140099184
2014-04-10

Sealing systems for turboexpanders for use in organic Rankine cycles

#134
20130302140
2013-11-14

Gas turbine engine compressor stator seal

#135
20130230393
2013-09-05

Shaft seal mechanism

#136
20130216377
2013-08-22

Induced draught fan

#137
20130202411
2013-08-08

Motor driven compressor and hermetic sealing inspection method for the same

#138
20130195609
2013-08-01

Mid-span gas bearing

#139
20130183147
2013-07-18

Centering attachment of a compressor housing cover

#140
20130156553
2013-06-20

Honeycomb seal and method

#141
20130149143
2013-06-13

Gas turbine engine including lift-off finger seals, lift-off finger seals, and method for the manufacture thereof

#142
20130142628
2013-06-06

Abradable seal with axial offset

#143
20130089411
2013-04-11

Control shaft seal

#144
20130071243
2013-03-21

Turbocharger rotating assembly

#145
20130011276
2013-01-10

Turbocharger

#146
20120328455
2012-12-27

Hydraulic fan assembly for an engine ventilation system

#147
20120306156
2012-12-06

COMPRESSOR SEAL

#148
20120257997
2012-10-11

Vented motor seal for a compressor

#149
20120219407
2012-08-30

Vacuum pump

#150
20120156031
2012-06-21

Seal shaft for controlling fluid flow within an air cycle machine

#151
20120153941
2012-06-21

Nondestructive test of a sealing member

#152
20120045313
2012-02-23

Flow device comprising a cavity cooling system

#153
20120039722
2012-02-16

Geared compressor rotor for cold gas applications

#154
20120020785
2012-01-26

Shaft-sealing device

#155
20120018958
2012-01-26

Magnetic fluid shaft-sealing device

#156
20120001444
2012-01-05

Improvements relating to pump seal assemblies

#157
20110305558
2011-12-15

Gear-driven turbo compressor

#158
20110210513
2011-09-01

NON-METALLIC BRUSH SEAL

#159
20110182719
2011-07-28

Method and apparatus for labyrinth seal packing rings

#160
20110164973
2011-07-07

Pump housing support

#161
20110164841
2011-07-07

Lubricant retainer for pump shaft bearing assembly

#162
20110158800
2011-06-30

Liner coupling pin

#163
20110142599
2011-06-16

Adjustable side liner for a pump

#164
20110088667
2011-04-21

Supercharger rotor shaft seal pressure equalization

#165
20110073280
2011-03-31

HEAT-DISSIPATING FAN HAVING DUST-PROOF STRUCTURE

#166
20110052394
2011-03-03

CONICAL REVOLUTION MECHANISM

#167
20110052375
2011-03-03

Bearing system for rotor in rotating machines

#168
20100254811
2010-10-07

Dry gas blow down seal

#169
20100196140
2010-08-05

Device for inhibiting the flow of oil along a rotating shaft

#170
20100196139
2010-08-05

LEAKAGE FLOW MINIMIZATION SYSTEM FOR A TURBINE ENGINE

#171
20100166544
2010-07-01

Turbomachinery

#172
20100158676
2010-06-24

Composite component

#173
20100143091
2010-06-10

Vacuum generator seal

#174
20100119367
2010-05-13

Sealing device for rotary fluid machine, and rotary fluid machine

#175
20100034646
2010-02-11

CENTRIFUGAL COMPRESSOR

#176
20100028148
2010-02-04

Sealing device for rotary fluid machine, and rotary fluid machine

#177
20090322033
2009-12-31

Shaft isolation seal

#178
20090317265
2009-12-24

Method and apparatus for protection of compressor modules against influx of contaminated gas

#179
20090304496
2009-12-10

Rotary separator drum seal

#180
20090280004
2009-11-12

Labyrinth seal for a motor-fan unit

#181
20090252595
2009-10-08

NON-CONTACTING FACE SEALS AND THRUST BEARINGS

#182
20090108540
2009-04-30

Seal cartridge for a vacuum pumps

#183
20090060736
2009-03-05

Compressor

#184
20090060722
2009-03-05

Variable-pitch vane of a turbomachine

#185
20080290604
2008-11-27

Barrier sealing system for centrifugal compressors

#186
20080265519
2008-10-30

Device for a rotating gland seal

#187
20080260522
2008-10-23

GAS TURBINE ENGINE WITH INTEGRATED ABRADABLE SEAL AND MOUNT PLATE

#188
20080085183
2008-04-10

Air seal arrangement for a gas turbine engine

#189
20080020701
2008-01-24

Adjustable angle oscillating fan

#190
20070292258
2007-12-20

Actuation pressure control for adjustable seals in turbomachinery

#191
20070172376
2007-07-26

Vaccum pump having shaft seal to prevent corrosion and to ensure smooth operation

#192
20070116556
2007-05-24

Thermostructural turbomachine part that is circularly symmetrical about a longitudinal axis, the part including an annular wiper, and a method of manufacture

#193
20070069477
2007-03-29

Stepped labyrinth damper seal

#194
20060269407
2006-11-30

Seal

#195
20060267289
2006-11-30

Hybrid abradable labyrinth damper seal

#196
20060237914
2006-10-26

Swirl-reversal abradable labyrinth seal

#197
20060181247
2006-08-17

Fan structure and battery pack using the same

#198
20060080832
2006-04-20

Stepped sleeve repair of knife seal bores in driven compressor housing

#199
20050142004
2005-06-30

Gas seal system for the shaft of an electric compressor motor

#200
14644705
2015-10-20

Complex path design of the flinger and insert