ClassID:

142768

F04B11/0091 - CPC Classification

Classification description:

Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using a special shape of fluid pass, e.g. throttles, ducts

Recent Application in this class:
#1
20250188914
2025-06-12

FLUIDIC METHODS AND DEVICES

#2
20240360946
2024-10-31

STABILIZER CARTRIDGE

#3
20240287973
2024-08-29

ANTI-CAVITATION DEVICE, FLUID END, AND METHOD

#4
20240133370
2024-04-25

APPARATUS FOR CONTROLLING PRESSURE OR FLOW IN A FLUIDIC SYSTEM

#5
20240110558
2024-04-04

PERISTALTIC PUMPS WITH REDUCED PULSATIONS

#6
20240035495
2024-02-01

HYDRAULIC SURGE DAMPENER

#7
20240003322
2024-01-04

FUEL PUMP

#8
20230332594
2023-10-19

Hydraulic pump

#9
20230304484
2023-09-28

MODULAR SUCTION STABILIZER

#10
20230235973
2023-07-27

Guidance unit (MK-1) and arcwing circulating power guidance system with the guidance unit (MK-1)

#11
20230012746
2023-01-19

Fluidic methods and devices

#12
20230009988
2023-01-12

Pulsation damper

#13
20220275795
2022-09-01

Miniature electromagnetic water pump

#14
20220205441
2022-06-30

Linear compressor

#15
20220186717
2022-06-16

Pump and associated system and methods

#16
20220136639
2022-05-05

Wear inserts for well service reactive dampeners

#17
20220106947
2022-04-07

Stabilizer cartridge

#18
20220026006
2022-01-27

Hydraulic snubber insert for gas turbine engine and associated method of installation

#19
20210239108
2021-08-05

Tube pump

#20
20210231113
2021-07-29

Pulsation damping system

#21
20210207753
2021-07-08

Damping device

#22
20210164502
2021-06-03

Attenuation device for the fluid flow pulsation in a hydraulic circuit connected with a hydraulic machine

#23
20210100938
2021-04-08

Peristaltic pumps with reduced pulsations

#24
20210095647
2021-04-01

Axial piston pump with port plate having balance feed aperture relief feature

#25
20200370657
2020-11-26

Hydraulic assembly, particularly for supplying a brake circuit of a vehicle brake system with fluid at brake pressure

#26
20200362844
2020-11-19

Pulsation damper

#27
20200332782
2020-10-22

AXIAL PISTON DEVICE

#28
20200325880
2020-10-15

Piston/liner configuration coordination in a piston pump

#29
20200306427
2020-10-01

Inline pump with rear attachable syringe

#30
20200164124
2020-05-28

FLUID DRIVING DEVICE

#31
20200158063
2020-05-21

FLUID PULSATION ATTENUATING ARRANGEMENT

#32
20200132237
2020-04-30

Mini-dampeners at pump combined with system pulsation dampener

#33
20200116139
2020-04-16

Fluidic methods and devices

#34
20200063727
2020-02-27

Methods and devices for fluid driven adult devices

#35
20200032779
2020-01-30

Cellular tube for replacement of traditional gas-charged cartridges in suction stabilizers

#36
20190390663
2019-12-26

Hydraulic pump with inlet baffle

#37
20190293058
2019-09-26

Pulsation dampener utilizing a chargless mitigation device

#38
20190293037
2019-09-26

High-pressure fuel pump for a fuel injection system

#39
20190257462
2019-08-22

System pulsation dampener device(s) substituting for pulsation dampeners utilizing compression material therein

#40
20190234388
2019-08-01

Hydraulic machine

#41
20190022297
2019-01-24

Blood treatment device comprising a metering line having a membrane pump and a valve and method for metering

#42
20180372077
2018-12-27

Device for choking a fluid flow and corresponding piston pump for delivering fluids

#43
20180320672
2018-11-08

Compressor with flooded start control

#44
20180313343
2018-11-01

DYNAMIC VARIABLE ORIFICE FOR COMPRESSOR PULSATION CONTROL

#45
20180306150
2018-10-25

Liquid pump with cavitation mitigation

#46
20180163719
2018-06-14

Reciprocating pump

#47
20180142678
2018-05-24

Dynamic variable orifice for compressor pulsation control

#48
20180135627
2018-05-17

Fluid working systems

#49
20180128239
2018-05-10

PUMPING DEVICE FOR A WASTE HEAT RECOVERY APPARATUS IN A MOTOR VEHICLE

#50
20180104392
2018-04-19

Inline pump with rear attachable syringe

#51
20180074525
2018-03-15

Tube pump system and method for controlling the tube pump system

#52
20170298911
2017-10-19

Pumping device for a waste heat recovery apparatus in a motor vehicle

#53
20170292485
2017-10-12

High pressure pump for complex injection engines

#54
20170130706
2017-05-11

Pressure-reducing choke assembly

#55
20170027810
2017-02-02

Fluidic methods and devices

#56
20170009928
2017-01-12

Pulsation damping system

#57
20160348672
2016-12-01

AXIAL PISTON DEVICE

#58
20160327038
2016-11-10

Fluid working systems

#59
20160319805
2016-11-03

Fluid end with modular intake manifold

#60
20160305384
2016-10-20

Automotive fuel pump

#61
20160281693
2016-09-29

High-pressure fuel supply pump

#62
20160265519
2016-09-15

Flow control apparatus

#63
20160258427
2016-09-08

Fuel supply system

#64
20160237993
2016-08-18

Axial piston pump having a swash-plate type construction

#65
20160167088
2016-06-16

Method for coating a pump component

#66
20160153431
2016-06-02

Hydraulic pump and piston for such a hydraulic pump

#67
20160131121
2016-05-12

Device for choking a fluid flow and corresponding piston pump for delivering fluids

#68
20160131120
2016-05-12

High-pressure fuel pump

#69
20160108901
2016-04-21

Axial piston pump

#70
20160102657
2016-04-14

Piston pump for a hydraulic vehicle brake system

#71
20160097378
2016-04-07

HIGH-VISCOSITY LIQUID FEEDING BOOSTER PUMP

#72
20160017883
2016-01-21

Linear compressor

#73
20160003399
2016-01-07

Pulsation damper suitable for hygienic processing lines

#74
20150308602
2015-10-29

Damping device

#75
20150292494
2015-10-15

Pressure regulating apparatus including conduit

#76
20150285234
2015-10-08

Swash plate type variable displacement compressor

#77
20150204317
2015-07-23

Dynamic variable orifice for compressor pulsation control

#78
20150198149
2015-07-16

Aerodynamic pressure pulsation dampener

#79
20150159638
2015-06-11

Pump device

#80
20150100023
2015-04-09

Inline pump with rear attachable syringe

#81
20140301876
2014-10-09

Piston pump having a holder

#82
20140147315
2014-05-29

Piston pump for delivering fluids, and associated vehicle brake system

#83
20140147314
2014-05-29

Piston pump for delivering fluids, and corresponding assembly process for a piston pump

#84
20140088468
2014-03-27

Methods and devices for fluid driven adult devices

#85
20140030125
2014-01-30

Spring element and corresponding piston pump for delivering fluids

#86
20130008512
2013-01-10

Pump pulsation discharge dampener with curved internal baffle and pressure drop feature creating two internal volumes

#87
20120325356
2012-12-27

Pulsation Attenuation

#88
20120263613
2012-10-18

Discharge valve and damper for a piston pump

#89
20120247140
2012-10-04

Variable displacement compressor

#90
20120234403
2012-09-20

Housing with intersecting passages for high pressure fluid applications

#91
20120192710
2012-08-02

Oil-free air compressor for rail vehicles

#92
20120189477
2012-07-26

Pump pulsation discharge dampener with dual pressure drop tube assemblies having unequal sizes

#93
20120134854
2012-05-31

Differential pressure control valve and variable displacement compressor having the differential pressure control valve

#94
20110196303
2011-08-11

Flow pulsatility dampening devices

#95
20110110809
2011-05-12

High pressure pump

#96
20110110807
2011-05-12

High-pressure pump

#97
20110064588
2011-03-17

Inlet throttle controlled liquid pump with cavitation damage avoidance feature

#98
20090272260
2009-11-05

Pressure attenuated pump piston

#99
20090038684
2009-02-12

Pulsation attenuation

#100
20080317618
2008-12-25

PULSATION PRESSURE DECREASED TYPE PUMP FOR VEHICLE SLIP CONTROL SYSTEM

#101
20080295680
2008-12-04

Hydrostatic piston machine with output volume flow in the circumferential direction

#102
20080264384
2008-10-30

Plug-in pump fuel injection system

#103
20080210324
2008-09-04

Damper

#104
20080003122
2008-01-03

Inlet throttle controlled liquid pump with cavitation damage avoidance feature

#105
20060198738
2006-09-07

Reciprocating pump

#106
20060096558
2006-05-11

Piston engine comprising a pulsation-reducing device

#107
14596328
2016-04-19

Hydraulically assisted steering system