ClassID:

143697

F04C29/025 - CPC Classification

Classification description:

Component parts, details or accessories of pumps or pumping installations, not provided for in groups  - ; Lubrication ; Lubricant separation using a lubricant pump

Recent Application in this class:
#1
20250376982
2025-12-11

ROLLING PISTON ROTARY COMPRESSOR

#2
20250305499
2025-10-02

MULTIFUNCTIONAL VACUUM PUMP

#3
20250129783
2025-04-24

LUBRICATION SYSTEM FOR COMPRESSORS

#4
20250122877
2025-04-17

COMPRESSOR ASSEMBLY COMPRISING A MOTOR DRIVING ONE OR MORE COMPRESSOR ROTORS AND METHOD FOR FABRICATING A HOUSING PART OF SUCH A COMPRESSOR ASSEMBLY

#5
20250101984
2025-03-27

Oil-Free Air Compressor

#6
20250067265
2025-02-27

SCROLL COMPRESSOR

#7
20240360830
2024-10-31

COMPRESSOR ASSEMBLY

#8
20240344517
2024-10-17

ROTARY COMPRESSOR DRIVE LINE

#9
20240247656
2024-07-25

Methods and systems for lubricating a transport climate control system having an auxiliary sump

#10
20240167476
2024-05-23

Rotary compressor

#11
20240003348
2024-01-04

Compressor with oil pump

#12
20230313797
2023-10-05

HORIZONTAL ROTARY COMPRESSOR WITH ENHANCED TILTABILITY DURING OPERATION AND OTHER PERFORMANCE METRICS

#13
20230279860
2023-09-07

Methods and systems for lubricating a transport climate control system having an auxiliary sump

#14
20230175511
2023-06-08

Damping system for compressor

#15
20230175510
2023-06-08

SCROLL COMPRESSOR

#16
20230160383
2023-05-25

Compressor

#17
20230114913
2023-04-13

Compressor having lubrication system

#18
20230040776
2023-02-09

VIRTUAL SENSOR FOR WATER CONTENT IN OIL CIRCUIT

#19
20220412359
2022-12-29

Refrigerant compressor including an oil level sensor arrangement

#20
20220412352
2022-12-29

Compressor having orbiting scroll supply hole to lubricate thrust surface

#21
20220390157
2022-12-08

Oil supply system for compressor

#22
20220290671
2022-09-15

Scroll compressor having a centrifugal oil pump

#23
20220290666
2022-09-15

Scroll compressor provided with an hydrostatic lower bearing arrangement

#24
20220260074
2022-08-18

Scroll compressor having oil supply passages in fluid communication with compression chambers

#25
20220252310
2022-08-11

Oil return flow path for a compressor

#26
20220243803
2022-08-04

Pump stage assembly, external gear pump, use of a pump stage assembly and vehicle transmission

#27
20220196015
2022-06-23

Flow control valve, oil pump assembly having the flow control valve, and scroll compressor

#28
20220154719
2022-05-19

Scroll compressor and refrigeration cycle apparatus

#29
20220120277
2022-04-21

Compressor having lubrication system

#30
20220042509
2022-02-10

Compressor oil management system

#31
20210388836
2021-12-16

Oil supply mechanism of rotating machinery and rotating machinery having oil supply mechanism

#32
20210239118
2021-08-05

Horizontal rotary compressor with enhanced tiltability during operation

#33
20210131412
2021-05-06

Scroll compressor of lower compression type enabling active oil supply

#34
20210048026
2021-02-18

Method of priming a pump of an aircraft engine

#35
20200408208
2020-12-31

Scroll compressor provided with an orbital disc lubrication system

#36
20200362863
2020-11-19

Oil supplying mechanism, and horizontal compressor having same

#37
20200325899
2020-10-15

LUBRICANT SUPPLY PASSAGE FOR COMPRESSOR

#38
20200248693
2020-08-06

Internal gear pump

#39
20200158112
2020-05-21

Virtual sensor for water content in oil circuit

#40
20200149531
2020-05-14

Vane rotary compressor having a bearing with back pressure pockets

#41
20200103074
2020-04-02

A TRANSPORTABLE SYSTEM FOR DELIVERING LUBRICANT TO A LUBRICATION TARGET AND PARTS THEREFOR

#42
20200102957
2020-04-02

Scroll compressor with wrap having gradually decreasing thickness

#43
20200080561
2020-03-12

LIGHTWEIGHT VACUUM PUMP WITH OXIDIZED SURFACES

#44
20190323505
2019-10-24

Compressor comprising a compression mechanism driven by a main shaft having a balance weight comprising an annular oil-receiving recessed portion communicating with a part of a hollow portion of the balance weight

#45
20190226483
2019-07-25

MOTOR VEHICLE VACUUM PUMP

#46
20190211826
2019-07-11

Screw compressor for a utility vehicle

#47
20190145414
2019-05-16

Pump mechanism and horizontal compressor having same

#48
20190128249
2019-05-02

Electric compressor, and refrigeration air-conditioning apparatus

#49
20190101117
2019-04-04

Vane pump

#50
20190093658
2019-03-28

Lubricating oil supply apparatus and compressor using lubricating oil supply apparatus

#51
20190093656
2019-03-28

Automotive vacuum pump

#52
20190072095
2019-03-07

Lubrication system for a compressor

#53
20190063436
2019-02-28

Scroll compressor

#54
20190032665
2019-01-31

Scroll compressor witha lubricant supply system and refrigeration cycle apparatus having the scroll compressor

#55
20190032663
2019-01-31

Water lubrication air compression system

#56
20190032659
2019-01-31

Scroll compressor and air conditioning apparatus including the same

#57
20190024664
2019-01-24

Compressor having centrifugation structure for supplying oil

#58
20190024650
2019-01-24

Hermetic compressor

#59
20180335035
2018-11-22

Mechanical vacuum pump for a motor vehicle

#60
20180306189
2018-10-25

Oil circuit, oil-free compressor provided with such oil circuit and a method to control lubrication and/or cooling of such oil-free compressor via such oil circuit

#61
20180298905
2018-10-18

Refrigerant compressor system

#62
20180252217
2018-09-06

Lubrication system

#63
20180245599
2018-08-30

Compressor device

#64
20180238329
2018-08-23

Oilless compressor

#65
20180223852
2018-08-09

Compressor bearing housing drain

#66
20180223851
2018-08-09

Compressor with oil pump assembly

#67
20180223850
2018-08-09

Compressor

#68
20180216616
2018-08-02

Scroll compressor with an orbital disc lubrication system

#69
20180112664
2018-04-26

Screw compressor, compressor element and gearbox applied thereby

#70
20180080448
2018-03-22

Lubrication of scroll compressor

#71
20180050674
2018-02-22

Vacuum pump with rotor shaft supported by friction bearings

#72
20180030983
2018-02-01

Vacuum pump with cooling apparatus

#73
20170306953
2017-10-26

Scroll compressor with wrap having gradually decreasing thickness

#74
20170241689
2017-08-24

Compressor floodback protection system

#75
20170175742
2017-06-22

Rotary compressor

#76
20170082108
2017-03-23

WATER LUBRICATION TWIN-SCREW TYPE AIR COMPRESSOR

#77
20170002815
2017-01-05

Motor vehicle vacuum pump having a switchable clutch

#78
20160348686
2016-12-01

Screw pump and impeller fan assemblies and method of operating

#79
20160329784
2016-11-10

Permanent magnet motor with a rotor having press fitted rivets and press fitted shaft and pin holes and a method for manufacturing the rotor

#80
20160327036
2016-11-10

Internal gear pump

#81
20160298628
2016-10-13

Vacuum pump

#82
20160230764
2016-08-11

Scroll compressor

#83
20160222967
2016-08-04

Compressor with oil pump assembly

#84
20160208803
2016-07-21

SCROLL COMPRESSOR

#85
20160131137
2016-05-12

Lubrication of a rotary compressor

#86
20160123325
2016-05-05

Compressor and method of autonomously inspecting oil

#87
20160084123
2016-03-24

Oil pump, engine cover and engine comprising the same

#88
20160040672
2016-02-11

Compressor

#89
20160040671
2016-02-11

Scroll compressor

#90
20160040670
2016-02-11

Rotary screw compressors utilizing viscous damping for vibration reduction

#91
20160003240
2016-01-07

Engine oil pump with reduced noise and vibration

#92
20150285244
2015-10-08

Oil pump, engine cover and engine comprising the same

#93
20150275898
2015-10-01

Alignment feature for a lower bearing assembly for a scroll compressor

#94
20150252806
2015-09-10

Gas compressor formed with a high-pressure supply hole

#95
20150167671
2015-06-18

Dual mechanical seal with embedded bearing for volatile fluids

#96
20150147203
2015-05-28

Compressor

#97
20150071805
2015-03-12

Rotor pump and rotary machinery comprising the same, the rotor pump including a pump body forming an accommodation cavity, a pump wheel rotating in the accommodation cavity and a sealing plate having an eccentric hole that is eccentric relative to a rotation axis of the pump wheel, where a shaft portion of the pump wheel is rotatably fitted in the eccentric hole

#98
20150030487
2015-01-29

Compressor

#99
20140294642
2014-10-02

Vane compressor that suppresses the wear at the tip of the vane

#100
20140286807
2014-09-25

Vane compressor having a second discharge port that includes an opening portion to a compression space

#101
20140271315
2014-09-18

Vane compressor having a vane supporter that suppresses leakage of refrigerant

#102
20140271303
2014-09-18

Vane-type compressor having an oil supply channel between the oil resevoir and vane angle adjuster

#103
20140161645
2014-06-12

Gas pump with a sealing oil groove

#104
20140044581
2014-02-13

Rotary compressor and rotation mechanism

#105
20130343941
2013-12-26

Scroll compressor with differential pressure hole and communication hole

#106
20130259725
2013-10-03

Rotary compressor with oiling mechanism

#107
20130156623
2013-06-20

Variable-speed scroll refrigeration compressor

#108
20130156612
2013-06-20

Oil injection device for variable-speed scroll refrigeration compressor

#109
20130078131
2013-03-28

Scroll compressor with differential pressure hole

#110
20130052069
2013-02-28

Scroll compressor with cover covering driving shaft of driving motor

#111
20120282128
2012-11-08

Progressing cavity gas pump and progressing cavity gas pumping method

#112
20120171067
2012-07-05

Hermetic compressor and manufacturing method thereof

#113
20120171066
2012-07-05

Compressor

#114
20120171065
2012-07-05

Compressor

#115
20120171064
2012-07-05

Compressor in which a shaft center of a suction pipe is disposed to not correspond to a shaft center of a refrigerant suction passage of a stationary shaft and an upper end of the stationary shaft protrudes higher than a bottom of an accumulator chamber

#116
20120171060
2012-07-05

Compressor

#117
20120114504
2012-05-10

Vertical shaft pumping system with lubricant impeller arrangement

#118
20110302954
2011-12-15

Rotary-type fluid machine and refrigeration cycle apparatus

#119
20110280749
2011-11-17

Sealed compressor with easy to assemble oil pump

#120
20110158839
2011-06-30

Scroll Fluid Machine

#121
20110150690
2011-06-23

OIL SUPPLY STRUCTURE FOR REFRIGERANT COMPRESSOR

#122
20110150671
2011-06-23

Supercharger timing gear oil pump

#123
20110129378
2011-06-02

Horizontal scroll compressor

#124
20110110802
2011-05-12

Compressor assembly

#125
20110073412
2011-03-31

AXIAL FAN COMPACT BEARING VISCOUS PUMP

#126
20110027117
2011-02-03

ROTARY COMPRESSOR

#127
20100326124
2010-12-30

EXPANDER-INTEGRATED COMPRESSOR AND REFRIGERATION CYCLE APPARATUS USING THE SAME

#128
20100284833
2010-11-11

SEALED TYPE COMPRSSOR

#129
20100269536
2010-10-28

Expander-compressor unit

#130
20100263404
2010-10-21

Expander-compressor unit

#131
20100254844
2010-10-07

Expander-compressor unit

#132
20100233006
2010-09-16

SCREW-TYPE FLUID MACHINE

#133
20100180628
2010-07-22

Expander-integrated compressor and refrigeration-cycle apparatus with the same

#134
20100122550
2010-05-20

Hermetic compressor and refrigeration cycle device having the same

#135
20100122549
2010-05-20

Hermetic compressor including a backflow preventing portion and refrigeration cycle device having the same

#136
20090155111
2009-06-18

Rotary-type fluid machine and refrigeration cycle apparatus

#137
20090139262
2009-06-04

Expander-compressor unit

#138
20090104062
2009-04-23

Two stage compressor having rotary and scroll type compression mechanisms

#139
20090104060
2009-04-23

COMPRESSOR

#140
20090041603
2009-02-12

Oil injection control in a compressor with variable-speed coils

#141
20090041602
2009-02-12

Scroll-type refrigerant compressor having fluid communication between lubrication duct and return duct

#142
20090035168
2009-02-05

Scroll-type refrigerant compressor having fluid flowing from gas inlet to motor winding end chamber through intermediate jacket

#143
20090035160
2009-02-05

Hermetic compressor and refrigeration cycle device having the same

#144
20090031753
2009-02-05

COMPRESSOR

#145
20080175738
2008-07-24

COMPRESSOR AND OIL BLOCKING DEVICE THEREFOR

#146
20080031764
2008-02-07

Compressor having back pressure vane controlled for improving oil distribution

#147
20080008614
2008-01-10

Horizontal type scroll compressor including a first space and a second space

#148
20070243093
2007-10-18

Compressor

#149
20070224068
2007-09-27

Ductile cast iron scroll compressor

#150
20070183916
2007-08-09

Oil pump for a scroll compressor

#151
20070163840
2007-07-19

Lubricant supply system and operating method of multisystem lubrication screw compressor

#152
20070160489
2007-07-12

Oil pump for a compressor

#153
20070160488
2007-07-12

Oil retrieving structure for a compressor

#154
20070134118
2007-06-14

Oil pump for a compressor

#155
20070122303
2007-05-31

Oil pump of scroll compressor

#156
20070098585
2007-05-03

Vacuum pump with improved oil lubrication

#157
20070071627
2007-03-29

Oil pumping device of hermetic compressor

#158
20070065307
2007-03-22

Rotational inhibitor for compressor lubricant

#159
20070065306
2007-03-22

Compressor having an oil residue pool

#160
20060222551
2006-10-05

Oil feeding propeller of scroll compressor

#161
20060177339
2006-08-10

Horizontal type orbiting vane compressor

#162
20060120889
2006-06-08

Discharge valve for compressor

#163
20060067850
2006-03-30

Compressor having pressure controlled for improving oil distribution

#164
20060045784
2006-03-02

Motor compressor lubrication

#165
20050232800
2005-10-20

Scroll compressor for refrigerant

#166
20050180871
2005-08-18

Fluid compressor

#167
20050169786
2005-08-04

Liquid pump

#168
20050129559
2005-06-16

Horizontal rotary compressor

#169
17827267
2022-11-22

Portable, rotary vane vacuum pump with a quick oil change system