Patents-Review.com
ClassID:

142970 ⎘

F04B39/02 - CPC Classification

Classification description:

Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups - Lubrication

Sub-classes:
Recent Application in this class:
#1
20260132776
2026-05-14

DRY-SUMP RECIPROCATING PISTON COMPRESSOR WITH LUBRICANT CIRCUIT

 #2
20260028979
2026-01-29

COMPRESSOR SYSTEM AND REFRIGERATION DEVICE

 #3
20250263618
2025-08-21

SYSTEM AND METHOD FOR REDUCING FRICTION, TORQUE AND DRAG IN ARTIFICIAL LIFT SYSTEMS USED IN OIL AND GAS PRODUCTION WELLS

 #4
20250101985
2025-03-27

BEARING STRUCTURE, COMPRESSOR, AND REFRIGERATION CYCLE APPARATUS

 #5
20240117802
2024-04-11

Hydraulic drive for diaphragm compressor

 #6
20230198339
2023-06-22

Fluid plate assembly

 #7
20230065792
2023-03-02

SYSTEM FOR TRANSPORTING LUBRICATING OIL IN A COMPRESSOR

 #8
20230019752
2023-01-19

Rotary compressor and home appliance including the same

 #9
20220412352
2022-12-29

Compressor having orbiting scroll supply hole to lubricate thrust surface

 #10
20220307359
2022-09-29

Control method and control device applied to electric fracturing apparatus

 #11
20220290671
2022-09-15

Scroll compressor having a centrifugal oil pump

 #12
20220251464
2022-08-11

System and method for reducing friction, torque and drag in artificial lift systems used in oil and gas production wells

 #13
20220243731
2022-08-04

Air compressor

 #14
20220145889
2022-05-12

Compressor

 #15
20220145874
2022-05-12

ACTIVE OIL INJECTION SYSTEM FOR A DIAPHRAGM COMPRESSOR

 #16
20220106952
2022-04-07

Compressor and air-conditioner

 #17
20210404456
2021-12-30

3D-printed oil separation for reciprocating compressors

 #18
20210404455
2021-12-30

Multi-stage compressor

 #19
20210348808
2021-11-11

REFRIGERANT COMPRESSOR AND EQUIPMENT USING THE SAME

 #20
20210277880
2021-09-09

Linear actuator pumping system

 #21
20210190060
2021-06-24

Liquid-cooled type compressor having first and second nozzle injection ports with different characteristics

 #22
20210017971
2021-01-21

MULTI-CYLINDER FRIGORIFIC COMPRESSOR WITH EXTERNAL DELIVERY MANIFOLD

 #23
20200166250
2020-05-28

Refrigerant compressor with gas equalizer duct

 #24
20200149518
2020-05-14

Linear compressor

 #25
20200141399
2020-05-07

Lattice-cored additive manufactured compressor components with fluid delivery features

 #26
20200102950
2020-04-02

Liquid-Feed-Type Gas Compressor

 #27
20200102943
2020-04-02

3D-Printed Oil Separation for Reciprocating Compressors

 #28
20200088183
2020-03-19

Linear compressor

 #29
20200072209
2020-03-05

Oil separator for a compressor and compressor assembly comprising said separator

 #30
20200056112
2020-02-20

System and method for reducing friction, torque and drag in artificial lift systems used in oil and gas production wells

 #31
20200040882
2020-02-06

Gas intensifier with lubrication

 #32
20190353155
2019-11-21

Linear compressor

 #33
20190353154
2019-11-21

Linear compressor

 #34
20190330747
2019-10-31

Refrigerant compressor and freezer including same

 #35
20190242382
2019-08-08

Air compressor

 #36
20190226481
2019-07-25

Lubricant supply device and a compressor using the same

 #37
20190186479
2019-06-20

Shoe for compressor

 #38
20190162202
2019-05-30

Compressor module

 #39
20190128249
2019-05-02

Electric compressor, and refrigeration air-conditioning apparatus

 #40
20190120231
2019-04-25

Separator device for separating a fluid, in particular a lubricant, from a coolant

 #41
20190107312
2019-04-11

Linear compressor with heat shield between discharge cover and frame

 #42
20190105585
2019-04-11

Anti-foaming pipe and compressor system

 #43
20190032971
2019-01-31

Refrigerant compressor and freezing apparatus using same

 #44
20190024651
2019-01-24

Air compressor having an oil separator, an oil cooler, first and second evaporators, and wherein intake air and the oil are simultaneously cooled in the first and second evaporators

 #45
20190003597
2019-01-03

Compressor system

 #46
20180347556
2018-12-06

Compressor, refrigerant compressing apparatus, and refrigerating apparatus

 #47
20180340527
2018-11-29

Refrigerant compressor and refrigeration device including refrigerant compressor

 #48
20180298905
2018-10-18

Refrigerant compressor system

 #49
20180223850
2018-08-09

Compressor

 #50
20180195505
2018-07-12

Compressor

 #51
20180163871
2018-06-14

Device and method for extending the lifespan of a shaft seal for an open-drive compressor

 #52
20180136124
2018-05-17

Oil sensor for a compressor

 #53
20180023762
2018-01-25

Oil console device and rotating machine lubrication system

 #54
20170306941
2017-10-26

Hermetic compressor and refrigeration device

 #55
20170268492
2017-09-21

Closed compressor and refrigeration device

 #56
20170241412
2017-08-24

Piston compressor and refrigeration system having the same

 #57
20170211869
2017-07-27

Sealed system for an appliance

 #58
20170211563
2017-07-27

Hermetic compressor and refrigeration device

 #59
20170184085
2017-06-29

Radial Bearing Arrangement in a Refrigeration Compressor

 #60
20170097007
2017-04-06

Refrigerant lube system

 #61
20170051645
2017-02-23

Compressor and oil drain system

 #62
20160312782
2016-10-27

Method of improving compressor bearing reliability

 #63
20160273818
2016-09-22

Compressor crankcase heating control systems and methods

 #64
20160186757
2016-06-30

Compressor with a closed loop water cooling system

 #65
20160186755
2016-06-30

Compressor system with variable lubricant injection orifice

 #66
20160076542
2016-03-17

Compressor with flooded start control

 #67
20160076541
2016-03-17

Compressor with flooded start control

 #68
20160076528
2016-03-17

Slide member

 #69
20160018148
2016-01-21

Refrigeration apparatus

 #70
20150369233
2015-12-24

Compressor having oil separator

 #71
20150337964
2015-11-26

Device and method for extending the lifespan of a shaft seal for an open-drive compressor

 #72
20150322949
2015-11-12

Rotary compressor having an oil groove in an inner peripheral surface of a bearing

 #73
20150219083
2015-08-06

Vehicle Air Compressor Apparatus for a Heavy Vehicle Air Braking System

 #74
20150211507
2015-07-30

SEALED COMPRESSOR

 #75
20150125311
2015-05-07

System, pump and method of vacuum generation for applications to motor vehicles

 #76
20150075205
2015-03-19

Compressor crankcase heating control systems and methods

 #77
20150047419
2015-02-19

Lubricant health and service determination

 #78
20150030478
2015-01-29

Sealed compressor and refrigeration unit comprising sealed compressor

 #79
20150023818
2015-01-22

Air compression system and cooling structure thereof

 #80
20140334955
2014-11-13

Oil supply system

 #81
20140308141
2014-10-16

SEALED COMPRESSOR AND REFRIGERATOR INCLUDING SEALED COMPRESSOR

 #82
20140287331
2014-09-25

Method and device for operating fuel cells

 #83
20140234134
2014-08-21

Pressurized oil delivery system for a reciprocating air compressor

 #84
20140147299
2014-05-29

Compensated barrier and lubrication fluids pressure regulation system for a subsea motor and pump module

 #85
20130280103
2013-10-24

Reciprocating-piston pump with plain bearing traversed by flow

 #86
20130251555
2013-09-26

POWER SYSTEM ARRANGEMENT

 #87
20130058815
2013-03-07

Reciprocating compressor with gas bearing

 #88
20120321486
2012-12-20

Compressor system including a flow and temperature control device

 #89
20120315158
2012-12-13

Method for intelligent control of a compressor system with heat recovery

 #90
20120285559
2012-11-15

Formed seal ring for a liquid gas separating element

 #91
20120263609
2012-10-18

Compressor having drive shaft with fluid passages

 #92
20120247141
2012-10-04

Reciprocating Refrigeration Compressor Oil Sealing

 #93
20120201697
2012-08-09

Oil management system for a compressor

 #94
20120137723
2012-06-07

AIR CONDITIONER

 #95
20110271709
2011-11-10

Sealed compressor and refrigeration device

 #96
20110217189
2011-09-08

REFRIGERANT COMPRESSOR

 #97
20110146626
2011-06-23

High pressure fuel pump

 #98
20110075700
2011-03-31

Method for sensing a fluid in a compressor shell

 #99
20110075699
2011-03-31

Method for sensing a fluid in a compressor shell

 #100
20110005266
2011-01-13

Reciprocating piston compressor

 #101
20100180628
2010-07-22

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

 #102
20100147016
2010-06-17

Lubricating oil composition for refrigerators and compressors with the composition

 #103
20100146915
2010-06-17

Coalescing filter element with drainage mechanism

 #104
20100043631
2010-02-25

Compressor with Improved Lubrication

 #105
20090101003
2009-04-23

Reciprocating compressor

 #106
20090068035
2009-03-12

REFRIGERANT COMPRESSOR ARRANGEMENT

 #107
20090068030
2009-03-12

Hermetically enclosed refrigerant compressor arrangement

 #108
20080250798
2008-10-16

Method for sensing the liquid level in a compressor

 #109
20080168898
2008-07-17

Air compressor

 #110
20080092959
2008-04-24

Device for separating oil from an oil-air separator of an oil reservoir

 #111
20080019844
2008-01-24

Compressor

 #112
20070028571
2007-02-08

Coalescing filter element with drainage mechanism

 #113
20070017244
2007-01-25

Vacuum sensor

 #114
20060216176
2006-09-28

Refrigerant compressor for motor vehicles

 #115
20060039796
2006-02-23

Engine-powered air compressor with a controller for low oil condition

 #116
20060032257
2006-02-16

Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus

 #117
20050271530
2005-12-08

Compressor

 #118
20050175492
2005-08-11

Hermetic compressor

 #119
20050092010
2005-05-05

Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus

 #120
20050076718
2005-04-14

Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor

 #121
20050066684
2005-03-31

Compression mechanism for refrigeration system