ClassID:

143683

F04C29/0021 - CPC Classification

Classification description:

Component parts, details or accessories of pumps or pumping installations, not provided for in groups  -  Systems for the equilibration of forces acting on the pump

Sub-classes:
Recent Application in this class:
#1
20260022699
2026-01-22

SCROLL COMPRESSOR WITH SHAFT BALANCER AND BUSHING BALANCER

#2
20260016008
2026-01-15

COMPRESSOR COUPLING COMPONENT FOR COUPLING A DRIVE SHAFT AND A MOVABLE SPIRAL IN A SCROLL COMPRESSOR

#3
20260016007
2026-01-15

SCROLL PUMP

#4
20250207588
2025-06-26

CO-ROTATING SCROLL COMPRESSOR

#5
20250109747
2025-04-03

SCROLL PUMP

#6
20250043786
2025-02-06

ELECTRIC COMPRESSOR

#7
20240418170
2024-12-19

COMPRESSOR AND AIR CONDITIONER

#8
20240401593
2024-12-05

SCROLL COMPRESSOR

#9
20240301880
2024-09-12

SCROLL COMPRESSOR

#10
20240110565
2024-04-04

Rotor assembly, compressor and air conditioner

#11
20240084802
2024-03-14

Rotor assembly, compressor and air conditioner

#12
20240060494
2024-02-22

Scroll compressor with a thrust plate and a flexible thrust sheet member

#13
20240035471
2024-02-01

Compressor with two rotors coaxially disposed on a connecting assembly sleeved on the shaft that limits relative movement between them

#14
20240026881
2024-01-25

Scroll compressor

#15
20240018960
2024-01-18

Scroll pump with fluid recirculation valve

#16
20230407869
2023-12-21

Counterweight for a scroll compressor

#17
20230358232
2023-11-09

Scroll compressor

#18
20230323880
2023-10-12

Balancing mechanism for scroll compressors

#19
20230258182
2023-08-17

Sliding component

#20
20230258181
2023-08-17

Sliding component

#21
20230113626
2023-04-13

Scroll compressor for compressing a refrigerant and method for oil enrichment and distribution

#22
20230101084
2023-03-30

Scroll compressor having separate flow paths in communication with different back pressure chambers

#23
20230086482
2023-03-23

Lubricant system for a compressor

#24
20230074153
2023-03-09

Scroll compressor of an electrical refrigerant drive and electrical refrigerant drive

#25
20230012695
2023-01-19

Sliding component

#26
20220412354
2022-12-29

Thrust plate for reducing contact stress in a scroll compressor

#27
20220403844
2022-12-22

Compressor having a bushing assembly

#28
20220372976
2022-11-24

Scroll compressor

#29
20220364561
2022-11-17

Compressor device and device equipped with a bearing damper

#30
20220325715
2022-10-13

Scroll compressor with economizer injection

#31
20220307504
2022-09-29

Compressor

#32
20220290672
2022-09-15

Compressor and refrigeration system

#33
20220290669
2022-09-15

Pump body assembly, heat exchange apparatus, fluid machine and operating method thereof

#34
20220268277
2022-08-25

Multi-bearing scroll compressor to enhance load management

#35
20220228589
2022-07-21

Method and device for balancing crankshaft deformation, crankshaft, and scroll compressor

#36
20220213894
2022-07-07

SCROLL PUMP CRANK SLEEVE

#37
20220099092
2022-03-31

Motor driven compressor apparatus including swing pin

#38
20210396230
2021-12-23

High suction pressure single screw compressor with thrust balancing load using shaft seal pressure and related methods

#39
20210324857
2021-10-21

Scroll compressor including bushing mounted on eccentric shaft containing cylindrical and auxiliary weight portions and balancer disposed above annular rotor remote from back pressure chamber

#40
20210254620
2021-08-19

Compressor

#41
20210246895
2021-08-12

Compressor with a deformable groove

#42
20210189922
2021-06-24

GEAR, BALANCER DEVICE, AND BALANCER DEVICE PROVIDED WITH OIL PUMP

#43
20210164470
2021-06-03

Compressor having capacity modulation assembly

#44
20210062811
2021-03-04

Electric compressor

#45
20210062809
2021-03-04

Scroll compressor having a shaft support portion including a closing portion

#46
20210025394
2021-01-28

Counterweight for compressor, motor for compressor and compressor

#47
20210017987
2021-01-21

SYSTEMS AND METHODS FOR ENHANCED COMPRESSOR BEARING LIFE

#48
20200408213
2020-12-31

Scroll compressor with economizer injection

#49
20200408210
2020-12-31

Screw Compressor and Air Conditioning Unit

#50
20200400143
2020-12-24

Scroll compressor

#51
20200332797
2020-10-22

Dynamic radial compliance in scroll compressors

#52
20200318639
2020-10-08

Horizontal compressor and refrigeration cycle system

#53
20200309127
2020-10-01

Scroll compressor

#54
20200291935
2020-09-17

Pressure balancing system for a fluid pump

#55
20200217319
2020-07-09

Scroll compressor having axial guide support

#56
20200173436
2020-06-04

Motor driven compressor apparatus including swing pin

#57
20200158109
2020-05-21

Scroll compressor

#58
20200102954
2020-04-02

Scroll compressor

#59
20200088196
2020-03-19

Method and apparatus for pressure equalization in rotary compressors

#60
20200088195
2020-03-19

SCROLL TYPE COMPRESSOR

#61
20200088194
2020-03-19

Scroll compressor having communication groove

#62
20200080557
2020-03-12

MOTOR-OPERATED COMPRESSOR

#63
20200072218
2020-03-05

Scroll compressor and method for producing same

#64
20200063743
2020-02-27

Displacement pump for fuel vapor recovery

#65
20200049145
2020-02-13

Scroll compressor

#66
20200025197
2020-01-23

Scroll compressor with buffer member between the orbiting groove and the balance weight

#67
20190301464
2019-10-03

Scroll compressor including bushing mounted on eccentric shaft containing cylindrical and auxiliary weight portions and balancer disposed above annular rotor remote from back pressure chamber

#68
20190301461
2019-10-03

Scroll compressor having recessed outer fixed scroll wall

#69
20190195226
2019-06-27

High suction pressure single screw compressor with thrust balancing load using shaft seal pressure and related methods

#70
20190186492
2019-06-20

Positive displacement compressor and damper bearing system

#71
20190186489
2019-06-20

Scroll compressor

#72
20190178248
2019-06-13

Scroll compressor

#73
20190162184
2019-05-30

Co-rotating scroll compressor and method for designing the same

#74
20190101116
2019-04-04

Scroll compressor having gap between tip spiral scroll wrap to end plate of fixed and orbiting scrolls that differs in axial length from gap between support of oldham ring and end plate of orbiting scroll

#75
20190093656
2019-03-28

Automotive vacuum pump

#76
20190072094
2019-03-07

Displacement machine according to the spiral principle, method to regulate pressure in the counter-pressure chamber by using a pressure difference and characteristic curve

#77
20190063436
2019-02-28

Scroll compressor

#78
20190063435
2019-02-28

Centrifugal suction-type hybrid vane fluid machine

#79
20190048874
2019-02-14

Scroll compressor

#80
20180372099
2018-12-27

Scroll compressor having communication groove in orbiting end plate

#81
20180363653
2018-12-20

Scroll compressor

#82
20180363464
2018-12-20

Compressor with a carrier element for support a compressor body base

#83
20180298904
2018-10-18

Compressor element for a screw compressor and screw compressor in which such a compressor element is applied

#84
20180291903
2018-10-11

COMPRESSOR

#85
20180258933
2018-09-13

Positive-displacement machine according to the spiral principle, method for operating a positive-displacement machine, positive-displacement spiral, vehicle air-conditioning system and vehicle

#86
20180223823
2018-08-09

Compressor discharge valve assembly

#87
20180180047
2018-06-28

Method and apparatus for pressure equalization in rotary compressors

#88
20180149155
2018-05-31

Compressor having capacity modulation assembly

#89
20180087507
2018-03-29

Uniaxial eccentric screw pump

#90
20170356448
2017-12-14

Screw compressor with oil shutoff and method

#91
20170350396
2017-12-07

Compressor having a sleeve guide assembly

#92
20170350394
2017-12-07

Rotary-type compressor

#93
20170350392
2017-12-07

Low power consuming module for a vacuum pump

#94
20170306961
2017-10-26

Compressor

#95
20170292519
2017-10-12

Compressor having sound isolation feature

#96
20170292518
2017-10-12

Compressor having sound isolation feature

#97
20170276134
2017-09-28

VACUUM PUMP FOR VEHICLE

#98
20170268515
2017-09-21

Compressor oil separation and assembly method

#99
20170248139
2017-08-31

Two-cylinder hermetic compressor

#100
20170248138
2017-08-31

Two-cylinder hermetic compressor

#101
20170184107
2017-06-29

Scroll compressor having axial guide support

#102
20170175736
2017-06-22

Gear pump with end plates or bearings having spiral grooves

#103
20170152852
2017-06-01

Rotary fluid machinery and method for eliminating axial rotor displacement

#104
20170146014
2017-05-25

Scroll compressor

#105
20170130721
2017-05-11

Rotary compressor

#106
20170130717
2017-05-11

Electric compressor and refrigeration device having same

#107
20170089341
2017-03-30

SCROLL COMPRESSOR AND METHOD OF MANUFACTURING THE SAME

#108
20170030353
2017-02-02

Vane compressor

#109
20170022990
2017-01-26

Screw compressor

#110
20160348676
2016-12-01

Scroll compressor

#111
20160333878
2016-11-17

Fuel pump

#112
20160312780
2016-10-27

Compressor having counterweight assembly

#113
20160282019
2016-09-29

Expansion compressor apparatus and air conditioner having the same

#114
20160265528
2016-09-15

Gear pump or hydraulic gear motor with helical toothing provided with hydraulic system for axial thrust balance

#115
20160230764
2016-08-11

Scroll compressor

#116
20160146208
2016-05-26

Scroll compressor

#117
20160076543
2016-03-17

Compressor having capacity modulation assembly

#118
20160040670
2016-02-11

Rotary screw compressors utilizing viscous damping for vibration reduction

#119
20150337840
2015-11-26

Compressor having external shell with vibration isolation and pressure balance

#120
20150337839
2015-11-26

Scroll compressor with reduced upsetting moment

#121
20150330382
2015-11-19

Hermetic rotary compressor

#122
20150198161
2015-07-16

SCROLL TYPE COMPRESSOR

#123
20150184657
2015-07-02

Positive displacement rotary devices with uniquely configured voids

#124
20150184656
2015-07-02

Vacuum scroll pump having pressure-balanced orbiting plate scroll

#125
20150184653
2015-07-02

Fan-shaped rotor set with balance positioning apertures

#126
20150159653
2015-06-11

Scroll pump having axially compliant spring element

#127
20150159652
2015-06-11

SCROLL-TYPE COMPRESSOR

#128
20150159650
2015-06-11

Scroll pump having axially compliant spring element

#129
20150118092
2015-04-30

Compressor having balance mechanism for a thrust bearing

#130
20150118089
2015-04-30

Compressor with unloader counterweight assembly

#131
20150104342
2015-04-16

Scroll-type compressor with gas passage formed in orbiting plate to restrict flow from compression chamber to back pressure chamber

#132
20150078945
2015-03-19

Scroll compressor

#133
20150052936
2015-02-26

Sealed compressor and vapor compression refrigeration cycle apparatus including the sealed compressor

#134
20150037191
2015-02-05

Axially compliant orbiting plate scroll and scroll pump comprising the same

#135
20150010417
2015-01-08

Scroll compressor

#136
20140322059
2014-10-30

Bearing insert having flattened portion and fluid machine having the same

#137
20140255231
2014-09-11

Scroll compressor with a balancer and elastic member

#138
20140248169
2014-09-04

Scroll compressor with balancing weights on the shaft

#139
20140227117
2014-08-14

Scroll compressor

#140
20140219833
2014-08-07

Compressor

#141
20140205484
2014-07-24

Radially compliant scroll compressor

#142
20140178229
2014-06-26

Scroll compressor having first and second oldham couplings

#143
20140178228
2014-06-26

Scroll compressor having a first and second oldham couplings

#144
20140105773
2014-04-17

Screw compressor

#145
20140072466
2014-03-13

Compressor having capacity modulation assembly

#146
20130315766
2013-11-28

Screw compressor unit

#147
20130209303
2013-08-15

Scroll compressor with reduced upsetting moment

#148
20130101390
2013-04-25

Method for controlling a compressor element of a screw compressor

#149
20130075209
2013-03-28

Damper device for rotating machine

#150
20120269667
2012-10-25

HERMETIC COMPRESSOR

#151
20120251356
2012-10-04

Shock protector for a compressor's drive circuit

#152
20120174620
2012-07-12

Hermetic compressor and refrigeration cycle equipment using the same

#153
20120027634
2012-02-02

Screw compressor having a second meshing body with at least one projection non-uniformly arranged with respect to the other projections in circumferential direction

#154
20110311385
2011-12-22

Vane pump and vapor leakage check system having the same

#155
20110280758
2011-11-17

Scroll type compressor having an elastic member to suppress noise and reduce variations

#156
20110268597
2011-11-03

Compressor having capacity modulation assembly

#157
20110243777
2011-10-06

Scroll compressor with passage in the spiral wrap

#158
20110217198
2011-09-08

Shaft mounted counterweight, method and scroll compressor incorporating same

#159
20110158839
2011-06-30

Scroll Fluid Machine

#160
20110158838
2011-06-30

Back pressure space of a scroll compressor

#161
20110150688
2011-06-23

Scroll compressor with rotary discharge valve

#162
20110135513
2011-06-09

Scroll compressor counterweight with cooling flow directing surface

#163
20100319394
2010-12-23

Compressor and refrigeration apparatus

#164
20100284846
2010-11-11

Scroll type fluid machinery

#165
20100254845
2010-10-07

Compressor

#166
20100254842
2010-10-07

Contoured check valve disc and scroll compressor incorporating same

#167
20100254841
2010-10-07

Compressor having capacity modulation assembly

#168
20100247364
2010-09-30

Single screw compressor structure

#169
20100239443
2010-09-23

SCROLL FLUID MACHINE

#170
20100209279
2010-08-19

Screw fluid machine

#171
20100183466
2010-07-22

Displacement machine with improved support

#172
20100183465
2010-07-22

Scroll Compressor

#173
20100150760
2010-06-17

ROTARY VACUUM PUMP

#174
20100080722
2010-04-01

Scroll compressor with balancer and oil passages

#175
20090317275
2009-12-24

Scroll compressor including a plurality of shoulder sections

#176
20090214368
2009-08-27

Vacuum Pump

#177
20090202376
2009-08-13

Scroll-type fluid machine including pressure-receiving piece

#178
20090185931
2009-07-23

Shaft mounted counterweight, method and scroll compressor incorporating same

#179
20090116988
2009-05-07

Scroll-type fluid machine including thrust receiving device

#180
20090092506
2009-04-09

ROTOR ATTACHMENT FOR COMPRESSOR

#181
20080292484
2008-11-27

Compressor and device for reducing vibration therefor

#182
20080260562
2008-10-23

Water-injected screw compressor element

#183
20080240954
2008-10-02

Rotary compressor

#184
20080219872
2008-09-11

Scroll machine having counterweights with changeable cavity

#185
20080193312
2008-08-14

Scroll compressor with discharge valve

#186
20080085207
2008-04-10

Oil-flooded screw compressor with axial-thrust balancing device

#187
20080069713
2008-03-20

Scroll compressor with discharge valve

#188
20070264146
2007-11-15

Screw compressor with intermediate plate

#189
20070217939
2007-09-20

GAS-COMPRESSION MODULE FOR A FUEL CELL

#190
20070172373
2007-07-26

Scroll-type fluid displacement apparatus with fully compliant floating scrolls

#191
20070122297
2007-05-31

Rotary compressor

#192
20070031275
2007-02-08

Fluid machinery

#193
20060233655
2006-10-19

Scroll machine with axially compliant mounting

#194
20060210416
2006-09-21

Scroll compressor having an annular recess located outside an annular seal portion and another recess communicating with suction port of fixed scroll

#195
20060188382
2006-08-24

Compressor

#196
20060177334
2006-08-10

Axial force reducing structure of orbiting vane compressor

#197
20060171830
2006-08-03

Scroll type hydraulic machine

#198
20060133945
2006-06-22

Scroll machine having counterweights with changeable cavity

#199
20060133944
2006-06-22

Scroll machine with brushless permanent magnet motor

#200
20060127262
2006-06-15

Oil discharge preventing apparatus of scroll compressor

#201
20060120894
2006-06-08

Hermetic compressor

#202
20060104845
2006-05-18

Variable capacity rotary compressor with pressure adjustment device

#203
20060093506
2006-05-04

Scroll compressor

#204
20060029508
2006-02-09

Scroll fluid machine

#205
20050201883
2005-09-15

Scroll machine with stepped sleeve guide

#206
20050152802
2005-07-14

Scroll compressor

#207
20050139189
2005-06-30

Adapter, to interface counter-rotating torque producing engine mechanisms with stationary support accessories, for torque free output and torque sensitive environments

#208
20050112011
2005-05-26

Scroll compressor

#209
20050098143
2005-05-12

Two-cycle engine for counter-rotation especially for aviation applications

#210
20050025651
2005-02-03

Method of correcting imbalance of a scroll compressor

#211
20050018936
2005-01-27

Bearing and screw compressor

#212
20050002816
2005-01-06

Power generating device

#213
18850806
2026-01-20

Scroll compressor with shaft balancer and bushing balancer

#214
18602626
2025-03-18

Scroll compressors including ring-shaped counterweight assemblies