Patents-Review.com
ClassID:

143713 ⎘

F04C29/126 - CPC Classification

Classification description:

Component parts, details or accessories of pumps or pumping installations, not provided for in groups  - ; Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type

Sub-classes:
Recent Application in this class:
#1
20260132790
2026-05-14

Valve For Rotary Fluid Displacement Assembly And Rotary Fluid Displacement Assembly Comprising Same

 #2
20260055768
2026-02-26

Vacuum air pump

 #3
20260055764
2026-02-26

COMPRESSOR

 #4
20260016014
2026-01-15

A SCROLL COMPRESSOR INCLUDING A DISCHARGE CHECK VALVE ASSEMBLY WITH METAL-TO-METAL SEALING SURFACES

 #5
20250382960
2025-12-18

VALVE FOR ROTARY FLUID DISPLACEMENT ASSEMBLY AND ROTARY FLUID DISPLACEMENT ASSEMBLY COMPRISING SAME

 #6
20250243863
2025-07-31

ROTARY COMPRESSOR

 #7
20250154955
2025-05-15

Check Valve for a Refrigerant Compressor

 #8
20250129785
2025-04-24

COMPRESSOR

 #9
20250052244
2025-02-13

Compressor Having Shutdown Valve Assembly

 #10
20240418171
2024-12-19

Multipath passive discharge valve for a compressor

 #11
20240271620
2024-08-15

Scroll compressor and refrigeration apparatus

 #12
20240151227
2024-05-09

Scroll compressor

 #13
20230250822
2023-08-10

Compressor with a suction valve having a spring, a seal, and a cylindrical suction valve body

 #14
20230213033
2023-07-06

Scroll compressor with a pressure relief low-speed rotation structure

 #15
20230204033
2023-06-29

Scroll structure and compressor with back pressure plate and floating plate

 #16
20230131102
2023-04-27

Rotary compressor

 #17
20220178372
2022-06-09

Rotary compressor with backflow suppresion mechanism for an introduction path

 #18
20220034557
2022-02-03

Scroll compressor with axially slidable suction passage opening and closing valve

 #19
20220025884
2022-01-27

High pressure scroll compressor

 #20
20220003329
2022-01-06

CHECK VALVE ARRANGEMENT AND MOTOR VEHICLE VACUUM PUMP

 #21
20210372402
2021-12-02

A LIQUID RING PUMP MANIFOLD

 #22
20210332820
2021-10-28

Vacuum pump

 #23
20210277896
2021-09-09

Damping apparatus for exhaust valve in compressor, exhaust valve assembly, and compressor

 #24
20210262470
2021-08-26

Scroll compressor including silencer device containing silencing holes

 #25
20210199111
2021-07-01

Scroll compressor comprising a valve provided on a fixed scroll that opens at a certain pressure

 #26
20210190070
2021-06-24

Compressor having capacity modulation assembly

 #27
20210148359
2021-05-20

Scroll compressor having hub plate

 #28
20210131427
2021-05-06

Scroll compressor with improved valve installation

 #29
20210054844
2021-02-25

Compressor

 #30
20210017989
2021-01-21

Liquid ring pump control

 #31
20200340476
2020-10-29

Scroll compressor

 #32
20200318640
2020-10-08

Method of pumping in a system of vacuum pumps and system of vacuum pumps

 #33
20200309134
2020-10-01

Dry-running gas vane pump having a first fluid outlet and a second fluid outlet associated with the pump chamber with the second fluid outlet permanently open to atmosphere without being impeded

 #34
20200232466
2020-07-23

Scroll compressor

 #35
20190353164
2019-11-21

Compressor having capacity modulation assembly

 #36
20190323506
2019-10-24

Motor vehicle vacuum pump arrangement

 #37
20190316694
2019-10-17

Check valve assembly

 #38
20190277285
2019-09-12

Compressor with discharge valve

 #39
20190040861
2019-02-07

Scroll compressor having hub plate

 #40
20180347565
2018-12-06

Rotary compressor with a valve in the vane

 #41
20180335034
2018-11-22

Vacuum pump with sound absorption and check valve

 #42
20180154869
2018-06-07

Air compressor and extraneous-matter removing apparatus

 #43
20170284394
2017-10-05

Pumping system for generating a vacuum and method for pumping by means of this pumping system

 #44
20170248356
2017-08-31

High pressure compressor and refrigerating machine having a high pressure compressor

 #45
20170241417
2017-08-24

Scroll compressor

 #46
20170211575
2017-07-27

Screw compressor

 #47
20170122321
2017-05-04

Method of pumping in a system of vacuum pumps and system of vacuum pumps

 #48
20170122320
2017-05-04

Device for compressing and expanding a gas and method for controlling the pressure in two grids of a different nominal pressure level

 #49
20170030357
2017-02-02

Cylinder-rotation compressor with a discharge valve

 #50
20170002818
2017-01-05

Compressor with thermally-responsive injector

 #51
20160363122
2016-12-15

Ring weld blocker in discharge check valve

 #52
20160348679
2016-12-01

Vacuum pump system including scroll pump and secondary pumping mechanism

 #53
20160115954
2016-04-28

Compressor

 #54
20150361980
2015-12-17

Scroll compressor with back pressure chamber having leakage channel

 #55
20150337841
2015-11-26

Scroll compressor with a shunt pulsation trap

 #56
20150211516
2015-07-30

Floating scroll seal with retaining ring

 #57
20150192124
2015-07-09

Electric compressor

 #58
20150192121
2015-07-09

Scroll compressor with back pressure device

 #59
20140369878
2014-12-18

Gas compressor with discharge section and sub-discharge section

 #60
20140348682
2014-11-27

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

 #61
20140322061
2014-10-30

Check valve for an engine vacuum pump

 #62
20140301881
2014-10-09

Rotary compressor with oil retaining portion

 #63
20140154123
2014-06-05

Scroll pump with overpressure exhaust

 #64
20140134031
2014-05-15

Compressor

 #65
20140064999
2014-03-06

Capacity modulated scroll compressor

 #66
20140010693
2014-01-09

Scroll compressor having a back pressure control valve for opening and closing a communication path in a stationary scroll

 #67
20130251577
2013-09-26

Scroll compressor with tilting slider block

 #68
20130251575
2013-09-26

Floating scroll seal with retaining ring

 #69
20130251574
2013-09-26

Scroll compressor with captured thrust washer

 #70
20130251573
2013-09-26

Press-fit bearing housing with large gas passages

 #71
20130251567
2013-09-26

Scroll compressor counterweight with axially distributed mass

 #72
20130139912
2013-06-06

Vacuum pump

 #73
20130136642
2013-05-30

Scroll refrigeration compressor

 #74
20130136638
2013-05-30

Gas inlet valve for a compressor, compressor comprising a gas inlet valve of this type and method for operating a compressor comprising a gas inlet valve of this type

 #75
20130089448
2013-04-11

Scroll refrigeration compressor with a delivery valve and a bypass valve

 #76
20130084202
2013-04-04

Vane rotary compressor

 #77
20130078128
2013-03-28

Compressor including biasing passage located relative to bypass porting

 #78
20130071266
2013-03-21

Motor-driven compressor

 #79
20130011291
2013-01-10

Single-screw compressor having an adjustment mechanism for adjusting a compression ratio of the compression chamber

 #80
20120247586
2012-10-04

Compressor relief valve cap and cover

 #81
20120189481
2012-07-26

Rotor type pump

 #82
20120039737
2012-02-16

Screw-type vacuum pump having overpressure openings

 #83
20120034124
2012-02-09

COMPRESSOR AND KIT REPAIRING AND INFLATING INFLATABLE ARTICLES

 #84
20110217200
2011-09-08

Vacuum pump

 #85
20110174396
2011-07-21

Compressor safety valve

 #86
20100278675
2010-11-04

2 stage rotary compressor

 #87
20100276226
2010-11-04

Muffler

 #88
20100254842
2010-10-07

Contoured check valve disc and scroll compressor incorporating same

 #89
20100239440
2010-09-23

Vacuum pump with an axial oil feed conduit

 #90
20100189585
2010-07-29

Scroll compressor

 #91
20100047103
2010-02-25

Integral slide valve relief valve

 #92
20090324437
2009-12-31

Pump valve having a limiting element

 #93
20090308471
2009-12-17

Startup bypass system for a screw compressor

 #94
20090252627
2009-10-08

Compressor assembly comprising a valve unit in the intake region

 #95
20090220370
2009-09-03

Gas compressor having a check valve

 #96
20090148332
2009-06-11

Compressor unloading valve

 #97
20090116977
2009-05-07

Compressor With Muffler

 #98
20090090419
2009-04-09

Suction valve

 #99
20080307797
2008-12-18

Positive displacement expander and fluid machinery

 #100
20080260546
2008-10-23

Compressor sound suppression

 #101
20080115357
2008-05-22

Scroll machine having improved discharge valve assembly

 #102
20080101972
2008-05-01

Single-Way Valve For Scroll Compressor

 #103
20080038121
2008-02-14

Compressor sound suppression

 #104
20070237664
2007-10-11

Backflow preventing apparatus for compressor

 #105
20070172374
2007-07-26

Expander

 #106
20070140866
2007-06-21

Oil-injection screw compressor

 #107
20060269431
2006-11-30

Compressor with check valve orientated at angle relative to discharge tube

 #108
20060233657
2006-10-19

Scroll machine having a discharge valve assembly

 #109
20060177336
2006-08-10

Dual-piston valve for orbiting vane compressors

 #110
20060159570
2006-07-20

Rotary compressor having a discharge valve

 #111
20060140797
2006-06-29

Apparatus for preventing the backflow of gas of scroll compressor

 #112
20060120889
2006-06-08

Discharge valve for compressor

 #113
20050238518
2005-10-27

Discharge check valve assembly for use with hermetic scroll compressor

 #114
20050232800
2005-10-20

Scroll compressor for refrigerant

 #115
20050232798
2005-10-20

Compressor check valve retainer

 #116
20050142017
2005-06-30

Scroll compressor with backflow-proof mechanism

 #117
20050031465
2005-02-10

Compact rotary compressor

 #118
18115355
2024-04-23

Compressor and valve assembly