ClassID:

143701

F04C29/042 - CPC Classification

Classification description:

Component parts, details or accessories of pumps or pumping installations, not provided for in groups  - ; Heating; Cooling ; Heat insulation by injecting a fluid

Recent Application in this class:
#1
20260043404
2026-02-12

LOW RATIO OIL INJECTION PORT FOR APPLICATIONS WITHOUT THE REQUIREMENT OF AN OIL PUMP

#2
20250389273
2025-12-25

LIQUID-COOLED SCREW COMPRESSOR

#3
20250198407
2025-06-19

AIREND HAVING A LUBRICANT FLOW VALVE AND CONTROLLER

#4
20250146489
2025-05-08

ROTARY PISTON COMPRESSOR/PUMP/BLOWER WITH A VENTILATION CHANNEL

#5
20250146486
2025-05-08

METHOD FOR CONTROLLING A FIRST REFERENCE TEMPERATURE IN A DEVICE FOR COMPRESSING GAS

#6
20250043782
2025-02-06

LIQUID FEEDING SYSTEM OF COMPRESSOR

#7
20240376878
2024-11-14

ASSEMBLY FOR COMPRESSING GAS, METHOD FOR COOLING, AND USE OF SUCH AN ASSEMBLY

#8
20240301879
2024-09-12

Element, device and method for compression of a gas to be compressed having a low temperature

#9
20240271618
2024-08-15

Energy transfer machine for corrosive fluids

#10
20240191714
2024-06-13

Element, device and method for compressing gas to be compressed having a low temperature

#11
20240110564
2024-04-04

Rotary piston compressor/pump/blower with a ventilation channel

#12
20240011489
2024-01-11

Airend having a lubricant flow valve and controller

#13
20230332602
2023-10-19

Liquid feed type gas compressor having a liquid supply system with first and second cooling units

#14
20230272794
2023-08-31

Energy transfer machine for corrosive fluids

#15
20230204032
2023-06-29

Scroll compressor

#16
20230175508
2023-06-08

Compressor element with improved oil injector

#17
20230070782
2023-03-09

Liquid supply type screw compressor

#18
20230069695
2023-03-02

Scroll compressor with inclined wall surface extending from the dust wrap

#19
20230042489
2023-02-09

Scroll compressor

#20
20230018817
2023-01-19

Single-stage enthalpy enhancing rotary compressor and air conditioner having same

#21
20230017937
2023-01-19

Rotary piston compressor/pump/blower with a ventilation channel

#22
20230017093
2023-01-19

Airend having a lubricant flow valve and controller

#23
20230012130
2023-01-12

COMPRESSOR WITH COOLING PUMP

#24
20220412362
2022-12-29

Thermal Deformation Management In A Stationary Scroll Plate Of A Scroll Compressor

#25
20220412355
2022-12-29

Thermal Deformation Management In A Scroll Plate Of A Scroll

#26
20220389929
2022-12-08

Scroll compressor including a front housing, a center housing, and a rear housing having first, second, and third annular walls

#27
20220268279
2022-08-25

Cooled dry vacuum screw pump

#28
20220205447
2022-06-30

Compressor and method of controlling the compressor

#29
20220178372
2022-06-09

Rotary compressor with backflow suppresion mechanism for an introduction path

#30
20220120279
2022-04-21

ROUGH-VACUUM PUMP OF DRY TYPE

#31
20220112905
2022-04-14

Compressor or vacuum pump device, a liquid return system for such a compressor or vacuum pump device and a method for draining liquid from a gearbox of such a compressor or vacuum pump device

#32
20220034316
2022-02-03

Compressor having shell fitting

#33
20220003234
2022-01-06

Oil-free water-injected screw air compressor

#34
20210301825
2021-09-30

Rotary fluid flow device

#35
20210285445
2021-09-16

Vapor injection double reed valve plate

#36
20210246900
2021-08-12

Oil-injected multistage compressor device and method for controlling such a compressor device

#37
20210190060
2021-06-24

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

#38
20210148362
2021-05-20

Co-rotating scroll compressor with bearing able to roll along surface

#39
20210140317
2021-05-13

Rotating heating chamber apparatus and method of use thereof

#40
20210108560
2021-04-15

Rotary piston compressor/pump/blower with a ventilation channel

#41
20210095666
2021-04-01

Scroll compressor

#42
20210095657
2021-04-01

Airend having a lubricant flow valve and controller

#43
20210048027
2021-02-18

Liquid ring pump manifold

#44
20210017995
2021-01-21

Oil-injected screw compressor installation in which cooling module is offset from compressor element

#45
20200386229
2020-12-10

Screw compressor having an opening of a fluid supply portion between the compression intersection line and a trajectory line

#46
20200386228
2020-12-10

STEAM COMPRESSOR COMPRISING A DRY POSITIVE-DISPLACEMENT UNIT AS A SPINDLE COMPRESSOR

#47
20200271115
2020-08-27

Scroll compressor and refrigeration cycle apparatus including injection port opening into suction chamber

#48
20200240415
2020-07-30

Oil feed type air compressor

#49
20200217320
2020-07-09

Cylindrical symmetric volumetric machine

#50
20200200178
2020-06-25

Vacuum pump with noise attenuating passage

#51
20200173439
2020-06-04

Rotary compressor

#52
20200102959
2020-04-02

Screw compressor

#53
20200018313
2020-01-16

SCROLL FLUID MACHINE

#54
20190390671
2019-12-26

Screw compressor

#55
20190383291
2019-12-19

PUMP APPARATUS

#56
20190338779
2019-11-07

Liquid cooling of fixed and orbiting scroll compressor, expander or vacuum pump

#57
20190271317
2019-09-05

Rotary fluid flow device

#58
20190242382
2019-08-08

Air compressor

#59
20190170143
2019-06-06

Fluid machine

#60
20180372100
2018-12-27

Scroll compressor and air conditioner having the same

#61
20180363652
2018-12-20

Method of controlling the temperature and mass flow of a liquid injected into the bearings and compressor space of a compressor using two separated liquid supplies

#62
20180347567
2018-12-06

Method for regulating the liquid injection of a compressor or expander device, a liquid-injected compressor or expander device, and a liquid-injected compressor or expander element

#63
20180266422
2018-09-20

PUMP APPARATUS WITH REMOTE MONITORING FUNCTION AND PUMP APPARATUS MONITORING SYSTEM

#64
20180216498
2018-08-02

Compact energy cycle construction utilizing some combination of a scroll type expander, pump, and compressor for operating according to a rankine, an organic rankine, heat pump, or combined organic rankine and heat pump cycle

#65
20180187684
2018-07-05

Package-type air-cooled screw compressor having a cooling air exhaust opening in the package with a duct extended downward with a lower-end inlet placed not viewable from the center position of the compressor

#66
20180128270
2018-05-10

Scroll compressor and refrigeration cycle apparatus

#67
20180119601
2018-05-03

Two-stage oil-injected screw air compressor

#68
20180106255
2018-04-19

Compressor with liquid injection cooling

#69
20180066873
2018-03-08

Compressor and refrigeration cycle apparatus

#70
20180030983
2018-02-01

Vacuum pump with cooling apparatus

#71
20180023871
2018-01-25

Temperature control method

#72
20180017062
2018-01-18

Compressor system and lubricant control valve to regulate temperature of a lubricant

#73
20170362962
2017-12-21

Compact energy cycle construction utilizing some combination of a scroll type expander, pump, and compressor for operating according to a rankine, an organic rankine, heat pump or combined organic rankine and heat pump cycle

#74
20170298937
2017-10-19

Method for controlling an oil-injected compressor device

#75
20170218957
2017-08-03

Scroll compressor and refrigeration cycle apparatus

#76
20170204881
2017-07-20

Supercharger outlet resonator

#77
20170204861
2017-07-20

Scroll compressor

#78
20170138361
2017-05-18

Compressor having a check valve in the injection passage

#79
20170067468
2017-03-09

Compressor

#80
20170002818
2017-01-05

Compressor with thermally-responsive injector

#81
20160369801
2016-12-22

Screw machine and method for operating the same

#82
20160131138
2016-05-12

Compressor with liquid injection cooling

#83
20160069219
2016-03-10

Compact energy cycle construction utilizing some combination of a scroll type expander, pump, and compressor for operating according to a rankine, an organic rankine, heat pump, or combined organic rankine and heat pump cycle

#84
20150361979
2015-12-17

Pump assembly and method for evacuating a vapor-filled chamber

#85
20150322756
2015-11-12

Subsea multiphase pump or compressor with magnetic coupling and cooling or lubrication by liquid or gas extracted from process fluid

#86
20150275895
2015-10-01

Rotary compressor with increased heating ability and refrigerant circuit for an air conditioner

#87
20150192124
2015-07-09

Electric compressor

#88
20150125330
2015-05-07

Compressor

#89
20150078928
2015-03-19

Compressor, air conditioner system comprising the compressor and heat pump water heater system

#90
20150053390
2015-02-26

Compressor system with thermally active heat exchanger

#91
20150050091
2015-02-19

Method and apparatus for treating the outlet air of a pneumatic waste conveying system

#92
20150040608
2015-02-12

Compressor and air conditioner including the same

#93
20150037190
2015-02-05

Oldham coupling with enhanced key surface in a scroll compressor

#94
20150030468
2015-01-29

Compressor device and method for controlling such a compressor device

#95
20150017027
2015-01-15

Liquid ring compressor

#96
20140345317
2014-11-27

Temperature control apparatus, processing apparatus, and temperature control method

#97
20140341770
2014-11-20

WATER COOLED SCREW COMPRESSOR

#98
20140308147
2014-10-16

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

#99
20140147325
2014-05-29

Water injected scroll air compressor

#100
20140119971
2014-05-01

Sealed scroll compressor for helium

#101
20140053544
2014-02-27

Heat engine system for power and heat production

#102
20130272910
2013-10-17

Scroll compressor

#103
20130248012
2013-09-26

Gas supply device

#104
20130209299
2013-08-15

Compressor with liquid injection cooling

#105
20130098100
2013-04-25

Refrigeration compressor that maintains a satisfactory oil level

#106
20130081425
2013-04-04

Scroll compressor and air conditioner including the same

#107
20130081424
2013-04-04

SCROLL COMPRESSOR AND AIR CONDITIONER INCLUDING THE SAME

#108
20130058822
2013-03-07

Screw compressor

#109
20120321486
2012-12-20

Compressor system including a flow and temperature control device

#110
20120315173
2012-12-13

Scroll compressor

#111
20120201710
2012-08-09

Water injection type screw compressor

#112
20120156068
2012-06-21

Hermetically sealed scroll compressor

#113
20120051958
2012-03-01

Compressor with liquid injection cooling

#114
20120045356
2012-02-23

Rotor for a screw compressor

#115
20110194963
2011-08-11

Water injected scroll air compressor

#116
20110139794
2011-06-16

Flash tank design and control for heat pumps

#117
20110129362
2011-06-02

Water-injection type scroll air compressor

#118
20110016895
2011-01-27

Methods and Systems for Injecting Liquid Into a Screw Compressor for Noise Suppression

#119
20110014077
2011-01-20

Method for cooling a liquid-injected compressor element and liquid-inject compressor element for applying such a method

#120
20100329918
2010-12-30

Screw compressor having injection having injection mechanism that injects oil or refrigerant toward a starting end of an extending direction of a helical groove of the female rotor or the male rotor

#121
20100303659
2010-12-02

Compressor having piston assembly

#122
20100266435
2010-10-21

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

#123
20100254836
2010-10-07

Oil-cooled screw compressor

#124
20100212352
2010-08-26

COMPRESSOR AND REFRIGERATING APPARATUS HAVING THE SAME

#125
20100202909
2010-08-12

Fluid machine and refrigeration cycle apparatus

#126
20100129240
2010-05-27

Hermetically sealed scroll compressor

#127
20100111737
2010-05-06

Compressor

#128
20100064707
2010-03-18

Multi-stage compressor

#129
20100008807
2010-01-14

Scroll compressor utilizing liquid or vapor injection

#130
20090308086
2009-12-17

REFRIGERANT SYSTEM WITH MULTI-SPEED PULSE WIDTH MODULATED COMPRESSOR

#131
20090290993
2009-11-26

Liquid ring compressor

#132
20090232688
2009-09-17

Compressor Installation With a Water-Injected Compressor Element

#133
20090120114
2009-05-14

Compressor with flow control sensor

#134
20090110583
2009-04-30

Rotary blower with super-charged injection cooling

#135
20080310986
2008-12-18

Oil-cooled screw compressor

#136
20080307808
2008-12-18

Capacity variable device for rotary compressor and driving method of air conditioner having the same

#137
20080307797
2008-12-18

Positive displacement expander and fluid machinery

#138
20080256961
2008-10-23

Economized Refrigerant System with Vapor Injection at Low Pressure

#139
20080236184
2008-10-02

Injectable two-staged rotary compressor and heat pump system

#140
20080223074
2008-09-18

REFRIGERATION SYSTEM

#141
20080223057
2008-09-18

Refrigerant System with Pulse Width Modulated Components and Variable Speed Compressor

#142
20080184733
2008-08-07

SCROLL COMPRESSOR WITH REFRIGERANT INJECTION SYSTEM

#143
20080152526
2008-06-26

Vapor injection system for a scroll compressor

#144
20080078191
2008-04-03

Rotary compressor and heat pump system

#145
20080053136
2008-03-06

Flash tank design and control for heat pumps

#146
20080047292
2008-02-28

Flash tank design and control for heat pumps

#147
20080047284
2008-02-28

Flash tank design and control for heat pumps

#148
20080047283
2008-02-28

FLASH TANK DESIGN AND CONTROL FOR HEAT PUMPS

#149
20080031742
2008-02-07

Arrangement and Method for Treatment of Compressed Gas

#150
20070286758
2007-12-13

Screw compressor having asymmetric seal around rotor axis

#151
20070269326
2007-11-22

Dual volume-ratio scroll machine

#152
20070251256
2007-11-01

Flash tank design and control for heat pumps

#153
20070183915
2007-08-09

Compressor with fluid injection system

#154
20070163840
2007-07-19

Lubricant supply system and operating method of multisystem lubrication screw compressor

#155
20070077162
2007-04-05

Oil-cooled screw compressor

#156
20070020112
2007-01-25

Compressor sound suppression

#157
20060285966
2006-12-21

Screw compressor and freezer

#158
20060277941
2006-12-14

Refrigerant system with vapor injection and liquid injection through separate passages

#159
20060277931
2006-12-14

Scroll compressor and refrigerating apparatus

#160
20060266076
2006-11-30

Indentation to optimize vapor injection through ports extending through scroll wrap

#161
20060204380
2006-09-14

Dual volume-ratio scroll machine

#162
20060204379
2006-09-14

Dual volume-ratio scroll machine

#163
20060073028
2006-04-06

Compressor sound suppression

#164
20060056989
2006-03-16

Valve for preventing unpowered reverse run at shutdown

#165
20050220654
2005-10-06

Apparatus for preventing overheating of scroll compressor

#166
20050147514
2005-07-07

Scroll compressor with enlarged vapor injection port area

#167
20050120733
2005-06-09

Vapor injection system

#168
20050097908
2005-05-12

Compressor with unloader valve between economizer line and evaporator inlet

#169
20050063855
2005-03-24

Rotary fluid machinery

#170
18796746
2026-02-10

Low ratio oil injection port for applications without the requirement of an oil pump

#171
18619147
2025-05-20

Cooling pump assembly

#172
18171521
2024-06-11

Injection valve assembly for a compressor