ClassID:

143709

F04C29/068 - CPC Classification

Classification description:

Component parts, details or accessories of pumps or pumping installations, not provided for in groups  - ; Silencing the silencing means being arranged inside the pump housing

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

ROLLING PISTON ROTARY COMPRESSOR

#2
20250020126
2025-01-16

COMPRESSOR

#3
20240337263
2024-10-10

Scroll compressor

#4
20240271621
2024-08-15

Low-pressure chamber rotary compressor and air conditioner

#5
20240263632
2024-08-08

SCROLL COMPRESSOR

#6
20240102473
2024-03-28

COMPRESSOR

#7
20240018961
2024-01-18

Compressor containing oil separator with multiple internal muffler spaces

#8
20230392601
2023-12-07

Fluid pump with integrated cowling and discharge muffler

#9
20230167825
2023-06-01

Scroll compressor provided with a discharge muffler arrangement

#10
20230097255
2023-03-30

Screw compressor with a shunt-enhanced decompression and pulsation trap (SEDAPT)

#11
20230080650
2023-03-16

Two-cylinder rotary compressor with mufflers

#12
20230019752
2023-01-19

Rotary compressor and home appliance including the same

#13
20220228590
2022-07-21

Compressor having seal assembly

#14
20220196017
2022-06-23

Muffler device and compressor having the same

#15
20220170461
2022-06-02

Scroll compressor

#16
20220154718
2022-05-19

Scroll compressor

#17
20220136502
2022-05-05

Compressor having damped scroll

#18
20220136501
2022-05-05

Scroll compressor

#19
20220136500
2022-05-05

Scroll compressor

#20
20220128055
2022-04-28

VACUUM PUMP HAVING A SILENCER

#21
20220112898
2022-04-14

Baffle plate for compressor, compressor, and refrigeration apparatus

#22
20220090600
2022-03-24

Scroll compressor

#23
20220034322
2022-02-03

Sealing structure and scroll air compressor having same

#24
20220025885
2022-01-27

Scroll compressor

#25
20210355944
2021-11-18

Compressor having muffler plate

#26
20210262470
2021-08-26

Scroll compressor including silencer device containing silencing holes

#27
20210215155
2021-07-15

Compressor provided with a muffler

#28
20210199114
2021-07-01

Multi-stage resonator for compressor

#29
20210190072
2021-06-24

Rotary compressor and refrigeration cycle apparatus

#30
20210079917
2021-03-18

GEAR PUMP AND GEAR MOTOR

#31
20210054844
2021-02-25

Compressor

#32
20200408139
2020-12-31

Supercharger integral resonator

#33
20200332799
2020-10-22

Motor vehicle vacuum pump arrangement

#34
20200300247
2020-09-24

COMPACT LOW NOISE ROTARY COMPRESSOR

#35
20200284256
2020-09-10

Scroll compressor having noise reduction structure

#36
20200232463
2020-07-23

Scroll compressor

#37
20200166035
2020-05-28

Silencer and compressor

#38
20200088197
2020-03-19

Scroll compressor with back pressure chamber and back pressure passages

#39
20200088182
2020-03-19

Electric Pump

#40
20200032803
2020-01-30

Compressor with a muffler

#41
20190360734
2019-11-28

Electric compressor

#42
20190360474
2019-11-28

Motor pump

#43
20190271314
2019-09-05

Rotary compressor and assembly method thereof

#44
20190219046
2019-07-18

Introduced in a system for connecting refrigerant fluid discharge tubes to cylinder caps of hermetic compressors, and corresponding process of performing thereof

#45
20190120232
2019-04-25

Screw compressor

#46
20190113036
2019-04-18

Vacuum pump having a silencer

#47
20180335233
2018-11-22

Hermetic compressor for positive displacement

#48
20180335034
2018-11-22

Vacuum pump with sound absorption and check valve

#49
20180274542
2018-09-27

BEARING PLATE NOISE DAMPER

#50
20180258935
2018-09-13

Electrically driven compressor mounted on a vehicle engine having a weight inside to shift the resonance frequency of the compressor from that of the engine

#51
20180238330
2018-08-23

Compressor with pulsation attenuation space disposed in injection passage

#52
20180195512
2018-07-12

ROTARY COMPRESSOR

#53
20180171865
2018-06-21

SUPERCHARGER INTEGRAL RESONATOR

#54
20180080447
2018-03-22

Electric compressor

#55
20170356434
2017-12-14

System for connecting refrigerant fluid discharge tubes to cylinder caps of hermetic compressors and process thereof

#56
20170292519
2017-10-12

Compressor having sound isolation feature

#57
20170292518
2017-10-12

Compressor having sound isolation feature

#58
20170284398
2017-10-05

Rotary pump having a casing being formed with a communicating hole communicating a space that is between the side plate and the wall surface of the driving machine

#59
20170074269
2017-03-16

Rotary compressor

#60
20160305431
2016-10-20

Compact low noise rotary compressor

#61
20160305430
2016-10-20

Scroll compressor having an insulated high-strength partition assembly

#62
20160231038
2016-08-11

Rotatory compressor and refrigerating cycle device

#63
20160201675
2016-07-14

Rotary pump having a casing being formed with a communicating hole communicating a space that is between the side plate and the wall surface of the driving machine

#64
20160003253
2016-01-07

Compressor and method for assembling a compressor

#65
20150361982
2015-12-17

Shunt pulsation trap for positive-displacement machinery

#66
20150361981
2015-12-17

Scroll compressor with a resonator

#67
20150345498
2015-12-03

Vacuum pump for a motor vehicle

#68
20150337841
2015-11-26

Scroll compressor with a shunt pulsation trap

#69
20150337840
2015-11-26

Compressor having external shell with vibration isolation and pressure balance

#70
20150198150
2015-07-16

Integral resonators for roots-type supercharger

#71
20150152868
2015-06-04

Compressor having sound isolation feature

#72
20150118086
2015-04-30

Optimized helix angle rotors for roots-style supercharger

#73
20150023811
2015-01-22

Compressor

#74
20150017045
2015-01-15

Vacuum pump of vehicle preventing lubricant from reintroducing for reducing operation noise

#75
20150004015
2015-01-01

Sound absorber for refrigerant compressor

#76
20140178219
2014-06-26

Electric pump

#77
20140161640
2014-06-12

Pump

#78
20140147300
2014-05-29

Rocking piston compressor with sound dissipation

#79
20130330214
2013-12-12

DISCHARGE SILENCER FOR A HERMETICALLY ENCAPSULATED REFRIGERANT COMPRESSOR

#80
20130216418
2013-08-22

Screw compressor

#81
20130101412
2013-04-25

Vacuum pump having rotary compressing elements

#82
20130089443
2013-04-11

Compressor with snug perforated stator end-cover

#83
20130039793
2013-02-14

Reduced noise fluid pump

#84
20130028758
2013-01-31

Manual selective attenuator

#85
20120315177
2012-12-13

Engine oil pump including plunge pool to mitigate surge noise

#86
20120263615
2012-10-18

Scroll Fluidic Device

#87
20120257993
2012-10-11

Sealed compressor

#88
20120251348
2012-10-04

MOTOR-DRIVEN COMPRESSOR

#89
20120237381
2012-09-20

Vehicular scroll compressor having housing arrangements for improved vibration isolation

#90
20120195783
2012-08-02

Noise and shock reduction in rotary positive displacement blowers

#91
20120171069
2012-07-05

Screw compressor with a shunt pulsation trap

#92
20120156067
2012-06-21

Compressor

#93
20120087819
2012-04-12

Rotary compressor

#94
20120085119
2012-04-12

Refrigerant compressor and heat pump apparatus

#95
20120085118
2012-04-12

Refrigerant compressor and heat pump apparatus

#96
20110300014
2011-12-08

Rotary lobe blower (pump) or vacuum pump with a shunt pulsation trap

#97
20110171041
2011-07-14

Vacuum Pump

#98
20110052437
2011-03-03

Scroll compressor having through holes with a set depth

#99
20110033327
2011-02-10

Scroll compressor with noise reducing discharge opening

#100
20100310388
2010-12-09

Sealing structure and compressor

#101
20100278674
2010-11-04

2 stage rotary compressor

#102
20100269798
2010-10-28

Integral rotor noise attenuators

#103
20100269797
2010-10-28

Tuning device with combined backflow function

#104
20100135839
2010-06-03

SCREW COMPRESSOR WITH INTEGRAL BEARING COVER AND DISCHARGE PLENUM DIVIDER

#105
20100047087
2010-02-25

Rotary compressor having a muffler with a discharge region to discharge compressed gas toward an outer surface of the crankshaft

#106
20090232679
2009-09-17

Compressor having compression element welded to closed container at three or more welding points and suction tube neither parallel nor perpendicular to a straight line connecting any two of the welding points

#107
20090232670
2009-09-17

Compressor muffler

#108
20090178881
2009-07-16

Resonator arrangement in an acoustic muffler for a refrigeration compressor

#109
20090175740
2009-07-09

Compressor having muffler outlets orthogonally arranged relative to the suction mouth

#110
20090175739
2009-07-09

DUAL DRIVE COMPRESSOR

#111
20090142213
2009-06-04

Roots-type blower reduced acoustic signature method and apparatus

#112
20090068028
2009-03-12

Compressor muffler

#113
20090060759
2009-03-05

Compressor sound suppression

#114
20080260547
2008-10-23

Compressor sound suppression

#115
20080260546
2008-10-23

Compressor sound suppression

#116
20080219863
2008-09-11

Connector for hermetic compressor and suction device of working fluid using the same

#117
20080085205
2008-04-10

Compressor having a helmholtz type resonance chamber with a lowermost end connected to a gas passage

#118
20080080997
2008-04-03

Screw compressor

#119
20080038121
2008-02-14

Compressor sound suppression

#120
20080008612
2008-01-10

Muffler of scroll compressor

#121
20070292284
2007-12-20

Muffler installation structure for compressor

#122
20070286758
2007-12-13

Screw compressor having asymmetric seal around rotor axis

#123
20070140884
2007-06-21

Scroll compressor

#124
20070104590
2007-05-10

Rotary compressor having discharge muffling

#125
20070020112
2007-01-25

Compressor sound suppression

#126
20070003421
2007-01-04

Two-stage screw compressor

#127
20060243520
2006-11-02

Screw compressor with an acoustic wave damping device

#128
20060222547
2006-10-05

Scroll fluid machine with a silencer

#129
20060216160
2006-09-28

Fixing structure and method for fixing upper cup muffler

#130
20060171835
2006-08-03

Discharge muffler system for a rotary compressor

#131
20060171819
2006-08-03

Compressor discharge muffler

#132
20060165543
2006-07-27

Screw compressor acoustic resonance reduction

#133
20060127235
2006-06-15

Compressor sound suppression

#134
20060073028
2006-04-06

Compressor sound suppression

#135
20060065478
2006-03-30

Compressor sound suppression

#136
20060056988
2006-03-16

Multi-cylinder rotary type compressor

#137
20060056987
2006-03-16

Multi-cylinder compressor

#138
20050214138
2005-09-29

Multistage rotary compressor

#139
20050123407
2005-06-09

System and method for noise attenuation of screw compressors

#140
20050106054
2005-05-19

Compressor discharge chamber with baffle plate

#141
20050106037
2005-05-19

Hermetic compressor

#142
20050063853
2005-03-24

Sound reduced rotary vane compressor

#143
20050002800
2005-01-06

Device having a pulsation reducing structure, a passage forming body and compressor

#144
17654467
2022-11-29

Compressor and air conditioner