ClassID:

146346

F15B2211/428 - CPC Classification

Classification description:

Circuits for servomotor systems; Flow control characterised by the type of actuation actuated by fluid pressure

Recent Application in this class:
#1
20250361884
2025-11-27

HYDRAULIC ACTUATOR SYNCHRONIZATION SYSTEM

#2
20250207683
2025-06-26

Valve

#3
20250163941
2025-05-22

Valve

#4
20240426077
2024-12-26

HYDRAULIC CONTROL SYSTEM IN EXCAVATOR TYPE CONSTRUCTION MACHINE

#5
20240384732
2024-11-21

Actuating Device for at Least One Fluidically Drivable Consumer

#6
20240369078
2024-11-07

PUMP CONTROL SHOCK ABSORBER

#7
20240301661
2024-09-12

Work Machine

#8
20240200508
2024-06-20

ELECTRO-HYDROSTATIC ACTUATION SYSTEM FOR A THRUST REVERSER FOR AN AIRCRAFT TURBOJET ENGINE NACELLE

#9
20240151003
2024-05-09

Work machine

#10
20240068491
2024-02-29

Automatic oil return structure for piston pump

#11
20230146852
2023-05-11

Pressure control valve with reduced pilot flow and hydraulic control system with the same

#12
20220341441
2022-10-27

Safety module for a process valve and system

#13
20220333622
2022-10-20

Air cylinder, head cover, and rod cover

#14
20220170241
2022-06-02

Flow control valve

#15
20220154743
2022-05-19

Hydraulic circuit with combined compensation and energy recovery function

#16
20220082171
2022-03-17

Hydraulic balancing control valve and ride control system incorporatng same

#17
20220056931
2022-02-24

Agricultural implements and hydraulic circuits therefor incorporating one or more priority valves

#18
20220049720
2022-02-17

Flow controller and driving apparatus including the same

#19
20210404564
2021-12-30

System pressure valve for a hydraulic system of a motor vehicle transmission

#20
20210270294
2021-09-02

A HYDRAULIC SYSTEM FOR A LOAD HANDLING VEHICLE

#21
20210270293
2021-09-02

A CONTROL VALVE ASSEMBLY FOR A LOAD HANDLING VEHICLE

#22
20210207622
2021-07-08

Flow control valve and hydraulic machine including the same

#23
20210189694
2021-06-24

Hydraulic system with energy recovery

#24
20210148386
2021-05-20

Hydraulic system for working machine

#25
20210123272
2021-04-29

Vehicle door positioning holder

#26
20210095698
2021-04-01

Actuating drive having a hydraulic outflow booster

#27
20200408227
2020-12-31

Hydromechanical linear converter

#28
20200333808
2020-10-22

Passive fluidic valve for fixed flow rate distribution

#29
20200240440
2020-07-30

Hydraulic system for work machine and work machine

#30
20200140063
2020-05-07

Horizontal stabilizer trim actuator systems and methods

#31
20200048868
2020-02-13

Hydraulic system for working machine

#32
20200002920
2020-01-02

Hydraulic system for working machine

#33
20190345695
2019-11-14

Hydraulic drive unit of hydraulic excavator

#34
20190330824
2019-10-31

Hydraulic control system for construction machine

#35
20190316692
2019-10-17

Hydraulic balancing control valve and ride control system incorporating same

#36
20190271333
2019-09-05

Hydraulic excavator drive system

#37
20190234431
2019-08-01

Cylinder driving device

#38
20190219177
2019-07-18

Directional valve comprising a damping system for controlling a torque motor of a construction machine

#39
20190217373
2019-07-18

Hydraulic cylinder

#40
20190203746
2019-07-04

System for recovering energy from a hydraulic actuator

#41
20190186105
2019-06-20

Work machine

#42
20190106861
2019-04-11

Work machine

#43
20190106306
2019-04-11

Brake device for braking a hydraulic motor of a turning body in a working machine

#44
20190063039
2019-02-28

Hydraulic energy regeneration system for work machine

#45
20180274209
2018-09-27

Hydraulic system for working machine

#46
20180258614
2018-09-13

Hydraulic distributor with valve device with active discharge in load sensing circuits

#47
20180215116
2018-08-02

Residual load relief system for hydraulic compactors having rotary pumps

#48
20180172153
2018-06-21

Control arrangement for a transmission brake with a quick exhaust valve

#49
20180022440
2018-01-25

Horizontal stabilizer trim actuator systems and methods

#50
20170350097
2017-12-07

Flow control valve for construction machine

#51
20170350096
2017-12-07

HYDRAULIC PUMP CONTROL APPARATUS FOR CONSTRUCTION EQUIPMENT AND CONTROL METHOD THEREOF

#52
20170292540
2017-10-12

Hydraulic system for work machine and work machine

#53
20170276155
2017-09-28

Hydraulic drive system for work machine

#54
20170276151
2017-09-28

HYDRAULIC CIRCUIT FOR CONSTRUCTION EQUIPMENT

#55
20170152875
2017-06-01

Compressed-air supply installation, pneumatic system, and method for controlling a compressed-air supply installation

#56
20170022790
2017-01-26

Annulus installed 6 zone control manifold

#57
20170009430
2017-01-12

Working machine control system

#58
20160281746
2016-09-29

Pneumatic actuator system and method for controlling such as system

#59
20160208829
2016-07-21

Fluid flow regulator

#60
20160102687
2016-04-14

Hydraulic unit

#61
20160090997
2016-03-31

Hydraulic system

#62
20150330415
2015-11-19

Hydraulic drive system for construction machine

#63
20150322648
2015-11-12

Device and method for controlling flow rate in construction machinery

#64
20150267718
2015-09-24

System preventing pressured oil leakage to cylinder line in control valve systems with flow divider

#65
20150240455
2015-08-27

Hydraulic driving system for construction machine

#66
20150168089
2015-06-18

Fluid cooler bypass system for an agricultural work vehicle

#67
20150096291
2015-04-09

Fluid pressure control device

#68
20150096290
2015-04-09

Hydraulic system

#69
20150089935
2015-04-02

Control valve apparatus of power shovel

#70
20150033723
2015-02-05

Hydraulic system

#71
20140366521
2014-12-18

Hydraulic drive system

#72
20140331662
2014-11-13

Hydraulic control device for forklift

#73
20140130488
2014-05-15

Hydraulic drive apparatus for work machine

#74
20130283777
2013-10-31

Hydraulic control system having energy recovery

#75
20130160879
2013-06-27

Hydraulic system for controlling a work implement

#76
20120133200
2012-05-31

Brake system and method

#77
20120085601
2012-04-12

Shut-off valve for hydraulic system

#78
20110277843
2011-11-17

Soft start device for pneumatic systems and method for the operation of a soft start device

#79
20110197576
2011-08-18

Hydraulic control system in working machine

#80
20110192155
2011-08-11

Hydraulic drive device for hydraulic excavator

#81
20110146258
2011-06-23

Hydraulic Circuit

#82
20110088798
2011-04-21

Stack valve having bucket parallel movement function

#83
20110083762
2011-04-14

Hydraulic system having a backpressure control valve

#84
20100313555
2010-12-16

Hydraulic control circuit for overcontrol of a slewing gear drive

#85
20100287924
2010-11-18

Dual pump hydraulic system

#86
20100132349
2010-06-03

Hydraulic drive, in particular for machine tools, and method for controlling the hydraulic drive

#87
20100126161
2010-05-27

Accumulator system and method of monitoring same

#88
20100084152
2010-04-08

Percussion device actuated by a pressurized non-compressible fluid

#89
20100059130
2010-03-11

Directional control valve device and directional control valve device block having directional control valve devices

#90
20090308067
2009-12-17

Hydraulic drive

#91
20090158725
2009-06-25

Hydraulic pump with control system

#92
20090107132
2009-04-30

HYDRAULIC SUPPLY SYSTEM WITH AN ADJUSTABLE PUMP

#93
20090094973
2009-04-16

Hydraulic circuit for heavy equipment

#94
20090090525
2009-04-09

Rock breaking device, protection valve and a method of operating a rock breaking device

#95
20090053077
2009-02-26

Flow prioritizing valve system

#96
20080276798
2008-11-13

Asymmetric volume booster arrangement for valve actuators

#97
20080245064
2008-10-09

Anti-saturation valve assembly for load sensing hydraulic system

#98
20080229738
2008-09-25

Hydraulic circuit to prevent bucket separation from bucket rest during traveling of heavy equipment

#99
20080223205
2008-09-18

Hydraulic drive apparatus

#100
20080173014
2008-07-24

Hydraulic control device of construction machine

#101
20080152513
2008-06-26

HYDRAULIC CIRCUIT ARRANGEMENT WITH RECOVERY OF ENERGY

#102
20080128036
2008-06-05

Softstart valve means

#103
20080053538
2008-03-06

Hydraulic circuit of option device for excavator

#104
20070204607
2007-09-06

Hydraulic circuit of construction machine

#105
20070169474
2007-07-26

Hydraulic control device for working machine

#106
20070144340
2007-06-28

Adjustable Differential Flow Shuttle Valve Control System

#107
20070107421
2007-05-17

Dual pump dual pressure hydraulic circuit

#108
20070062183
2007-03-22

Pump device

#109
20070056439
2007-03-15

Robustly stable servo-controlled metering poppet valve

#110
20070040140
2007-02-22

High pressure intensifying piston valve

#111
20070022871
2007-02-01

Electro-hydraulic metering valve with integral flow control

#112
20060273270
2006-12-07

Valve

#113
20060254964
2006-11-16

Method and apparatus for angularly positioning a shaker separator bed

#114
20060230752
2006-10-19

Hydraulic drive control device

#115
20060230751
2006-10-19

Electro-hydraulic system for fan driving and brake charging

#116
20060156914
2006-07-20

Hydraulic control

#117
20060130554
2006-06-22

Device for applying a working power to a workpiece

#118
20060090637
2006-05-04

Die drive unit of molding machine

#119
20050247188
2005-11-10

Hydraulic control valve having holding valve with improved response characteristics

#120
20050242310
2005-11-03

Control valve apparatus and pressure circuit

#121
20050229775
2005-10-20

Asymmetric volume booster arrangement for valve actuator

#122
20050204736
2005-09-22

Hydraulic control device for working machine

#123
20050183571
2005-08-25

Flow control apparatus for construction heavy equipment

#124
20050144938
2005-07-07

Hydraulic drive unit

#125
20050044851
2005-03-03

Monoprolellant/hypergolic powered proportional actuator

#126
20050044849
2005-03-03

Hydraulic control arrangement for a mobile work machine

#127
20050035320
2005-02-17

Electromagnetic proportional flow rate control valve

#128
20050031460
2005-02-10

Drive mechanism

#129
18055244
2023-09-19

Automatic oil return structure for piston pump