ClassID:

143552

F04C18/0207 - CPC Classification

Classification description:

Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form

Sub-classes:
Recent Application in this class:
#1
20260132789
2026-05-14

SCROLL PUMP AND SCROLL PUMP INLET VALVE

#2
20260071624
2026-03-12

ELECTRIC COMPRESSOR

#3
20260002537
2026-01-01

SCROLL COMPRESSOR

#4
20260002535
2026-01-01

CHECK VALVE AND SCROLL COMPRESSOR

#5
20260002533
2026-01-01

ROTARY COMPRESSOR AND REFRIGERATION APPARATUS

#6
20250314252
2025-10-09

SUPPORT STRUCTURE OF ELECTRIC COMPRESSOR

#7
20250290511
2025-09-18

SCROLL COMPRESSORS INCLUDING RING-SHAPED COUNTERWEIGHT ASSEMBLIES

#8
20250277489
2025-09-04

POSITIVE-DISPLACEMENT MACHINE ACCORDING TO THE SPIRAL PRINCIPLE

#9
20250264104
2025-08-21

NOISE AND VIBRATION MANAGEMENT FOR SMOKE EVACUATION SYSTEM

#10
20250230814
2025-07-17

CONNECTOR ASSEMBLY FOR SCROLL COMPRESSOR

#11
20250207586
2025-06-26

ELECTRIC COMPRESSOR

#12
20250137460
2025-05-01

DUAL-MODE COMPRESSOR

#13
20250052242
2025-02-13

A COMPRESSOR SCROLL PROVIDED WITH AN OIL SUMP FAIRING

#14
20250003410
2025-01-02

FLUID FILTER FOR A COMPRESSOR

#15
20240384717
2024-11-21

REED RETAINER MECHANISM AND ELECTRIC COMPRESSOR WITH REED RETAINER MECHANISM

#16
20240287985
2024-08-29

SCROLL COMPRESSOR WITH INTERMEDIATE INJECTION

#17
20240271623
2024-08-15

COMPRESSOR AND REFRIGERATION APPARATUS

#18
20240209858
2024-06-27

Compressor with funnel assembly

#19
20240162780
2024-05-16

FLUID MACHINE

#20
20240133379
2024-04-25

SCROLL COMPRESSOR

#21
20240060491
2024-02-22

SCROLL MACHINE AND REFRIGERATION SYSTEM

#22
20230392600
2023-12-07

METHOD FOR OPERATING A SCROLL VACUUM PUMP

#23
20230358234
2023-11-09

Scroll compressor housing with fin arrangement

#24
20230358233
2023-11-09

Fluid filter for a compressor

#25
20230358229
2023-11-09

Flexible spinning scroll coupling device

#26
20230340958
2023-10-26

NOISE AND VIBRATION MANAGEMENT FOR SMOKE EVACUATION SYSTEM

#27
20230258178
2023-08-17

Scroll compressor and refrigeration cycle apparatus

#28
20230110813
2023-04-13

Rotary machine with electric motor and impeller

#29
20220416451
2022-12-29

Fitting of an electrical terminal for a scroll compressor

#30
20220403844
2022-12-22

Compressor having a bushing assembly

#31
20220397316
2022-12-15

ETXV direct discharge injection compressor

#32
20220332168
2022-10-20

System for heating and/or cooling an interior environment

#33
20220316474
2022-10-06

Scroll compressor and air conditioner having same

#34
20220307506
2022-09-29

Sound absorbing cover and vibration insulating support for an electric compressor

#35
20220268281
2022-08-25

HIGH-SPEED GEAR-DRIVEN SPINNING SCROLL

#36
20220235774
2022-07-28

Scroll compressor

#37
20220205447
2022-06-30

Compressor and method of controlling the compressor

#38
20220196017
2022-06-23

Muffler device and compressor having the same

#39
20220196015
2022-06-23

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

#40
20220170465
2022-06-02

Refrigerant bypass solution

#41
20220154719
2022-05-19

Scroll compressor and refrigeration cycle apparatus

#42
20220120272
2022-04-21

Scroll compressor

#43
20210388836
2021-12-16

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

#44
20210381512
2021-12-09

Method and apparatus for controlling a scroll compressor using torque progression to reduce vibration

#45
20210320546
2021-10-14

Stator, motor, compressor, air conditioner, and manufacturing method of stator

#46
20210239119
2021-08-05

Fluid equalisation for multiple compressors

#47
20210222929
2021-07-22

COMPRESSOR SYSTEM WITH MULTIPLE COMPRESSOR ELEMENTS

#48
20210148362
2021-05-20

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

#49
20210071668
2021-03-11

Variable economizer injection position

#50
20200309124
2020-10-01

Compressor having directed suction

#51
20200291943
2020-09-17

Climate-control system having valve assembly

#52
20200232459
2020-07-23

MOTOR-OPERATED COMPRESSOR

#53
20200208632
2020-07-02

Compressor having Oldham keys

#54
20200116149
2020-04-16

Compressor

#55
20200088198
2020-03-19

Scroll compressor having buffer member arranged between end of shaft and recess of eccentric bush

#56
20200018313
2020-01-16

SCROLL FLUID MACHINE

#57
20200018311
2020-01-16

Scroll compressor and refrigeration cycle apparatus including fixed scroll baseplate injection port

#58
20190390675
2019-12-26

Scroll compressor having shaft frame support including guide holes to flow oil for bearing lubrication

#59
20190346190
2019-11-14

Compressor and refrigeration cycle apparatus

#60
20190331116
2019-10-31

Method for cooling a compressor or vacuum pump and a compressor or vacuum pump applying such a method

#61
20190285069
2019-09-19

In-vehicle motor-driven compressor and method for controlling in-vehicle motor-driven compressor

#62
20190219316
2019-07-18

Scroll unloading detection system

#63
20190195228
2019-06-27

Dual cylinder rotary compressor with intermediate plate that flows both cylinders to the muffler

#64
20190162186
2019-05-30

Noise and vibration management for smoke evacuation system

#65
20190154037
2019-05-23

Compressor Having Counterweight

#66
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

#67
20190063436
2019-02-28

Scroll compressor

#68
20190048721
2019-02-14

SCROLL PUMP TIP SEALING

#69
20190032974
2019-01-31

Electric compressor

#70
20190032664
2019-01-31

Scroll compressor shaft

#71
20180356129
2018-12-13

CENTRIFUGAL REFRIGERANT VAPOUR COMPRESSORS

#72
20180335036
2018-11-22

Scroll compressor with oil management system

#73
20180202442
2018-07-19

Electric compressor controller and refrigeration cycle device

#74
20180195505
2018-07-12

Compressor

#75
20180187681
2018-07-05

Drive device for electric compressor

#76
20180180339
2018-06-28

Scroll unloading detection system

#77
20180038371
2018-02-08

Compressor and bearing assembly

#78
20180030833
2018-02-01

GAS COMPRESSOR

#79
20180023516
2018-01-25

Natural gas fueled vehicle

#80
20180023393
2018-01-25

Oldham coupling for a scroll compressor

#81
20180017059
2018-01-18

Variable economizer injection position

#82
20170282270
2017-10-05

Vacuum-processing device and control method therefor, and vacuum soldering device and control method therefor

#83
20170268510
2017-09-21

Compressor valve system and assembly

#84
20170248346
2017-08-31

Centrifugal refrigerant vapour compressors

#85
20170211891
2017-07-27

Compressor having waste heat recovery with gas recycler

#86
20170108255
2017-04-20

Oil-gas balancing apparatus and compressor system with the same

#87
20170096049
2017-04-06

Electrically-driven compressor for vehicle

#88
20160369802
2016-12-22

Compressor and bearing assembly

#89
20160290337
2016-10-06

Scroll expander with electricity generating scrolls

#90
20160281698
2016-09-29

ELECTRIC COMPRESSOR

#91
20160258434
2016-09-08

Scroll compressor with variable volume ratio port in orbiting scroll

#92
20160252093
2016-09-01

Compressor assembly with liquid sensor

#93
20160252092
2016-09-01

Compressor assembly with liquid sensor

#94
20160201674
2016-07-14

Scroll vacuum pump and method of maintenance including replacing a tip seal of a scroll vacuum pump

#95
20160141953
2016-05-19

On-vehicle electronic device and motor-driven compressor

#96
20160131139
2016-05-12

Sound control for a heating, ventilation, and air conditioning unit

#97
20160040674
2016-02-11

ELECTRIC COMPRESSOR

#98
20160003253
2016-01-07

Compressor and method for assembling a compressor

#99
20150354571
2015-12-10

COMPRESSOR AND BEARING ASSEMBLY

#100
20150330408
2015-11-19

Air compression apparatus

#101
20150300353
2015-10-22

Pulsation dampening assembly

#102
20150233375
2015-08-20

Scroll compressor

#103
20150219100
2015-08-06

SCROLL COMPRESSOR WITH CAPTURED THRUST WASHER

#104
20150204328
2015-07-23

Electric compressor and method for manufacturing same

#105
20150198160
2015-07-16

METHOD FOR OPTIMIZING THE CONTROL OF AN ELECTRIC DRIVE

#106
20150198159
2015-07-16

Compressor having a partitioned discharge chamber

#107
20150192334
2015-07-09

Phase change compressor cover

#108
20150192129
2015-07-09

Rotary compressor, method of manufacturing a rotary compressor, and apparatus for manufacturing a rotary compressor

#109
20150192126
2015-07-09

ELECTRIC COMPRESSOR

#110
20150167670
2015-06-18

Compressor

#111
20150167660
2015-06-18

Fluid valve

#112
20150159651
2015-06-11

Motor-driven compressor with switching element

#113
20150139844
2015-05-21

Scroll compressor with oil management system

#114
20150093269
2015-04-02

Scroll type fluid machine

#115
20150052936
2015-02-26

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

#116
20150037183
2015-02-05

Intermediate oil separator for improved performance in a scroll compressor

#117
20150023820
2015-01-22

Offset electrical terminal box with angled studs

#118
20150017043
2015-01-15

POWDER METAL WITH SOLID LUBRICANT AND POWDER METAL SCROLL COMPRESSOR MADE THEREFROM

#119
20150010414
2015-01-08

STATOR, THREE-PHASE INDUCTION MOTOR, AND COMPRESSOR

#120
20150004039
2015-01-01

CAPACITY-MODULATED SCROLL COMPRESSOR

#121
20140371919
2014-12-18

Centrifugal refrigerant vapour compressors

#122
20140369878
2014-12-18

Gas compressor with discharge section and sub-discharge section

#123
20140356209
2014-12-04

Variable speed scroll compressor

#124
20140356207
2014-12-04

AN OIL-FREE SCROLL FLUID MACHINE

#125
20140348682
2014-11-27

Scroll-type compressor and CO2 vehicle air conditioning system having a scroll-type compressor

#126
20140348681
2014-11-27

Scroll-type compressor and COvehicle air conditioning system having a scroll-type compressor

#127
20140341710
2014-11-20

CENTRIFUGAL REFRIGERANT VAPOUR COMPRESSORS

#128
20140322056
2014-10-30

VACUUM PUMP HAVING EXPANSION CHAMBER AND METHOD OF ACHIEVING ULTIMATE PRESSURE STATE IN A VACUUM PUMP USING AN EXPANSION CHAMBER

#129
20140322055
2014-10-30

Scroll vacuum pump and method of maintenance including replacing a tip seal of a scroll vacuum pump

#130
20140314586
2014-10-23

Package type fluid machine

#131
20140271307
2014-09-18

Scroll compressor having a scroll supporter and/or movement limiter

#132
20140255231
2014-09-11

Scroll compressor with a balancer and elastic member

#133
20140236361
2014-08-21

Methods of controlling a cooling system based on pressure differences across a scroll compressor

#134
20140178229
2014-06-26

Scroll compressor having first and second oldham couplings

#135
20140178228
2014-06-26

Scroll compressor having a first and second oldham couplings

#136
20140170009
2014-06-19

Scroll Liquid Pump

#137
20140154124
2014-06-05

Scroll compressor with variable volume ratio port in orbiting scroll

#138
20140154116
2014-06-05

Scroll compressor

#139
20140140877
2014-05-22

SCROLL-TYPE VOLUME DISPLACEMENT APPARATUS WITH AN ORBITING THRUST BEARING

#140
20140140876
2014-05-22

Compressor with service valve assembly

#141
20140140868
2014-05-22

Scroll compressor with oil-cooled motor

#142
20140140867
2014-05-22

VARIABLE SPEED SCROLL COMPRESSOR

#143
20140140866
2014-05-22

REFRIGERATION COMPRESSOR AND A METHOD FOR ASSEMBLING SUCH A REFRIGERATION COMPRESSOR

#144
20140134031
2014-05-15

Compressor

#145
20140134030
2014-05-15

Compressor valve system and assembly

#146
20140134014
2014-05-15

Motor-driven compressor including a rotor core having a refrigerant passage

#147
20140119971
2014-05-01

Sealed scroll compressor for helium

#148
20140072467
2014-03-13

Compressor and oil-cooling system

#149
20140065000
2014-03-06

Hermetic electrical feedthrough assembly for a compressor

#150
20140064995
2014-03-06

SCROLL COMPRESSION DEVICE AND METHOD FOR MAGNETIZING SCROLL COMPRESSION DEVICE

#151
20140053544
2014-02-27

Heat engine system for power and heat production

#152
20140044574
2014-02-13

Scroll compression device

#153
20140044572
2014-02-13

Scroll compression device

#154
20140037470
2014-02-06

Motor-driven compressor including a shield to block electromagnetic noise

#155
20140017108
2014-01-16

SCROLL COMPRESSOR

#156
20140010679
2014-01-09

Compressors including polymeric components

#157
20130302198
2013-11-14

Scroll refrigeration compressor with anti-return device

#158
20130294951
2013-11-07

Electric compressor with blocking plate

#159
20130287617
2013-10-31

Method and apparatus for scroll alignment

#160
20130287592
2013-10-31

Compressed gas supply unit

#161
20130280117
2013-10-24

Compressor with different resin hardness layers

#162
20130251574
2013-09-26

Scroll compressor with captured thrust washer

#163
20130219950
2013-08-29

Scroll compressor and air conditioner

#164
20130196528
2013-08-01

Connector block with parallel electrical connection

#165
20130171017
2013-07-04

Rotary compressor with dual eccentric portion

#166
20130142682
2013-06-06

Compressor motor and electric compressor including the same

#167
20130136642
2013-05-30

Scroll refrigeration compressor

#168
20130129539
2013-05-23

ROTARY COMPRESSOR AND MANUFACTURING METHOD THEREOF

#169
20130011288
2013-01-10

Scroll compressor

#170
20120308422
2012-12-06

Scroll compressor with oldham ring having scroll-side keys and bearing-side keys

#171
20120301330
2012-11-29

Fluid Machine

#172
20120269662
2012-10-25

Mounting arrangement for an eccentric shaft in a refrigeration compressor

#173
20120177523
2012-07-12

Scroll compressor having back pressure chamber that operatively contains a discharge pressure and an intermediate pressure during different periods of time within a single compression cycle

#174
20120177514
2012-07-12

DISCHARGE PRESSURE ESTIMATION FOR COMPRESSOR

#175
20120000194
2012-01-05

Stirling engine power generation system

#176
20110262291
2011-10-27

Rotor Assembly for Rotary Compressor

#177
20110167822
2011-07-14

Fluid Machine

#178
20110081264
2011-04-07

Scroll compressor

#179
20100307173
2010-12-09

Compressor and oil-cooling system

#180
20100209266
2010-08-19

Electric compressor integral with drive circuit

#181
20100018243
2010-01-28

Integrated electronic compressor

#182
20090297381
2009-12-03

Anti-self rotation mechanism of a scroll fluid machine

#183
20090185938
2009-07-23

Water-lubricated compressor

#184
20090185932
2009-07-23

Scroll compressor build assembly

#185
20090185930
2009-07-23

Scroll compressor with housing shell location

#186
20080250801
2008-10-16

Pulse width modulated system with pressure regulating valve

#187
20080092385
2008-04-24

Fixed scroll positioning apparatus and fixed scroll positioning method

#188
20070277522
2007-12-06

Brayton Cycle Device And Exhaust Heat Energy Recovery Device For Internal Combustion Engine

#189
20070253854
2007-11-01

Compressor with oil bypass

#190
20070116582
2007-05-24

Compressor mounting bracket and method of making

#191
20060216159
2006-09-28

Multiple compressor control system

#192
20060093505
2006-05-04

Positioning structure and method for assembling compressor

#193
20060073034
2006-04-06

Compressor

#194
20050217732
2005-10-06

Apparatus for controlling the pressure in a process chamber and method of operating same

#195
20050100449
2005-05-12

Compressor diagnostic and recording system

#196
20050061535
2005-03-24

Shielded cable, process for assembling the same and compressor unit having the same

#197
20050053486
2005-03-10

Offset mounting foot

#198
20050025651
2005-02-03

Method of correcting imbalance of a scroll compressor

#199
19055836
2026-03-31

Rotor endplate for permanent magnet motor, rotor assembly with endplates, motor with rotor endplates, and electric compressor with motor having endplates

#200
18541828
2024-12-10

Compressor and valve assembly