ClassID:

146466

F15B2211/761 - CPC Classification

Classification description:

Circuits for servomotor systems; Output members, e.g. hydraulic motors or cylinders or control therefor; Control of force or torque of the output member Control of a negative load, i.e. of a load generating hydraulic energy

Recent Application in this class:
#1
20230213031
2023-07-06

Hydraulic control system for linear actuation

#2
20230139226
2023-05-04

Controller and method for hydraulic apparatus

#3
20230046319
2023-02-16

Dual power electro-hydraulic motion control system

#4
20220397133
2022-12-15

Hydraulic system for hydro-mechanical machines comprising rotary mechanism and boom cylinder

#5
20220347023
2022-11-03

Hydraulic system for a mobile rescue stretcher and mobile rescue stretcher

#6
20220117161
2022-04-21

Windrower variable rate header floatation system

#7
20220106766
2022-04-07

CONTROL UNIT FOR A HYDRAULIC SYSTEM

#8
20210372078
2021-12-02

Energy recuperation system and method for construction equipment

#9
20210355973
2021-11-18

Hydrostatic drive

#10
20210189694
2021-06-24

Hydraulic system with energy recovery

#11
20200291970
2020-09-17

Method to automatically detect parameter for pressure dynamics control

#12
20200277755
2020-09-03

Hydraulic drive system of construction machine

#13
20200221637
2020-07-16

Crop machine with an electronically controlled hydraulic cylinder flotation system

#14
20200123737
2020-04-23

Hydraulic system of construction machinery

#15
20200063761
2020-02-27

Hydraulic drive device for cargo vehicle

#16
20200040547
2020-02-06

Work machine

#17
20200018328
2020-01-16

Dual power electro-hydraulic motion control system

#18
20190352884
2019-11-21

Construction machine

#19
20190234431
2019-08-01

Cylinder driving device

#20
20190002258
2019-01-03

Power system for lifting apparatus

#21
20180359920
2018-12-20

Crop machine with an electronically controlled hydraulic cylinder flotation system

#22
20180292278
2018-10-11

Method for estimating an external force acting on an electrohydrostatic actuator

#23
20180266447
2018-09-20

Pump-controlled hydraulic circuits for operating a differential hydraulic actuator

#24
20180251958
2018-09-06

Hydraulic driving apparatus of work machine

#25
20180180066
2018-06-28

Apparatus and methods for the control of hydraulic actuators

#26
20180153102
2018-06-07

Crop machine with an electronically controlled hydraulic cylinder flotation system

#27
20180153101
2018-06-07

Crop machine with an electronically controlled hydraulic cylinder flotation system

#28
20180128607
2018-05-10

Method to automatically detect the area ratio of an actuator

#29
20180128292
2018-05-10

Control strategy for hydraulic actuator with a pair of independent metering valves

#30
20180128290
2018-05-10

Method to automatically detect parameter for pressure dynamics control

#31
20180100525
2018-04-12

Load sensing hydraulic system for a working machine, and a method for controlling a load sensing hydraulic system

#32
20180051720
2018-02-22

Hydraulic fluid energy regeneration apparatus of work machine

#33
20180051444
2018-02-22

Hydraulic control system of construction machine

#34
20170363122
2017-12-21

Apparatus for recuperating hydraulic energy with energy-efficient replenishment of the rod sides of differential cylinders and simultaneous pressure intensification

#35
20170363112
2017-12-21

Device for recovering hydraulic energy by connecting two differential cylinders

#36
20170276155
2017-09-28

Hydraulic drive system for work machine

#37
20170275852
2017-09-28

Hydraulic control system for construction machine

#38
20170184139
2017-06-29

Method of controlling velocity of a hydraulic actuator in over-center linkage systems

#39
20170107694
2017-04-20

Hydraulic excavator drive system

#40
20170058486
2017-03-02

Hydraulic drive apparatus for construction machine

#41
20170029256
2017-02-02

Load dependent electronic valve actuator regulation and pressure compensation

#42
20170023025
2017-01-26

Apparatus for the energy-optimized hydraulic control of at least one double-action working cylinder

#43
20170016208
2017-01-19

Work machine

#44
20160305455
2016-10-20

Double-loop control system with single hydraulic motor

#45
20160215481
2016-07-28

Control system for hybrid construction machine

#46
20160160884
2016-06-09

Systems and methods for selectively engaged regeneration of a hydraulic system

#47
20160138618
2016-05-19

Hydraulic regenerative and recovery parasitic mitigation system

#48
20160131130
2016-05-12

Power unit of hydraulic pumping unit and corresponding hydraulic pumping unit

#49
20160108933
2016-04-21

Method and system for storing and reusing hydraulic energy

#50
20160091004
2016-03-31

Method for controlling pressure in a hydraulic actuator

#51
20160090997
2016-03-31

Hydraulic system

#52
20160061232
2016-03-03

Energy efficient fluid powered linear actuator with variable area

#53
20160061229
2016-03-03

Energy efficient fluid powered linear actuator with variable area and concentric chambers

#54
20160061225
2016-03-03

Hydraulic valve arrangement

#55
20160053778
2016-02-25

Apparatus and method for controlling spool displacement of construction machine

#56
20150369262
2015-12-24

Fluid pressure control device

#57
20150361637
2015-12-17

Material handling machine

#58
20150308463
2015-10-29

Smooth control of hydraulic actuator

#59
20150275939
2015-10-01

Hydraulic circuit for construction machine

#60
20150260204
2015-09-17

Cylinder driving apparatus

#61
20150225928
2015-08-13

Shovel

#62
20150184362
2015-07-02

Slewing-type working machine

#63
20150176610
2015-06-25

Hydraulic drive system

#64
20150152900
2015-06-04

Control system for construction machine

#65
20150152890
2015-06-04

Construction machine and controller

#66
20150135699
2015-05-21

Hydraulic valve arrangement with control/regulating function

#67
20150135698
2015-05-21

Hydraulic valve arrangement with control/regulating function

#68
20150096291
2015-04-09

Fluid pressure control device

#69
20150081178
2015-03-19

Lift arm suspension system for a power machine

#70
20150075640
2015-03-19

Pneumatic valve assembly and method

#71
20150013324
2015-01-15

Forklift hydraulic control apparatus

#72
20140331662
2014-11-13

Hydraulic control device for forklift

#73
20140283509
2014-09-25

Power regeneration device for working machine and working machine

#74
20140260226
2014-09-18

Servo actuator load vector generating system

#75
20140260222
2014-09-18

Hydraulic regeneration system and method for a material handling vehicle

#76
20140182279
2014-07-03

Shovel and method of controlling shovel

#77
20140178167
2014-06-26

Rotation control device and construction machine including rotation control device

#78
20140166114
2014-06-19

Control system for hydraulic system and method for recovering energy and leveling hydraulic system loads

#79
20140158469
2014-06-12

Control device for a hydraulic elevator drive

#80
20140130488
2014-05-15

Hydraulic drive apparatus for work machine

#81
20140130486
2014-05-15

Hydraulic drive apparatus for work machine

#82
20140123633
2014-05-08

Energy recovery method and system

#83
20140026550
2014-01-30

Hydraulic energy recovery system

#84
20130340418
2013-12-26

Energy Storage Cylinder and Control System for a Moving Structural Member

#85
20130333378
2013-12-19

Hydraulic system and control logic for collection and recovery of energy in a double actuator arrangement

#86
20130327032
2013-12-12

Hydraulic system and arrangement for an access arrangement

#87
20130318959
2013-12-05

Hydraulic Circuits with Energy Conservation Features for Overrunning Load Conditions

#88
20130318955
2013-12-05

Electro-hydraulic system for recovering and reusing potential energy

#89
20130298541
2013-11-14

Load energy assist and horsepower management system

#90
20130283777
2013-10-31

Hydraulic control system having energy recovery

#91
20130236272
2013-09-12

Hydraulic system and crane

#92
20130199168
2013-08-08

Apparatus and method for recuperation of hydraulic energy

#93
20130152575
2013-06-20

Hydraulic driving apparatus for working machine

#94
20130129460
2013-05-23

Work implement control system

#95
20130098464
2013-04-25

Closed-loop hydraulic system having regeneration configuration

#96
20130098458
2013-04-25

HYDRAULIC SYSTEM HAVING MULTIPLE CLOSED-LOOP CIRCUITS

#97
20130098023
2013-04-25

Energy recovery control circuit and work machine

#98
20130081704
2013-04-04

Meterless hydraulic system having multi-actuator circuit

#99
20130055886
2013-03-07

Double check valve for construction equipment

#100
20130028695
2013-01-31

HYDRAULIC CIRCUIT AND WORKING MACHINE INCLUDING THE SAME

#101
20120291873
2012-11-22

Hydraulic circuit

#102
20120285159
2012-11-15

Hydraulic driving apparatus for working machine

#103
20120285152
2012-11-15

Hydraulic driving apparatus for working machine

#104
20120260642
2012-10-18

Load holding for meterless control of actuators

#105
20120260641
2012-10-18

Overrunning pump protection for flow-controlled actuators

#106
20120233997
2012-09-20

Regenerative hydraulic systems and methods of use

#107
20120221212
2012-08-30

Hydraulic control system implementing pump torque limiting

#108
20110289911
2011-12-01

HYDRAULIC SYSTEM AND METHOD OF ACTIVELY DAMPING OSCILLATIONS DURING OPERATION THEREOF

#109
20110209471
2011-09-01

Velocity control of unbalanced hydraulic actuator subjected to over-center load conditions

#110
20110162744
2011-07-07

Device for piloting by means of a substantially incompressible fluid

#111
20110088797
2011-04-21

Fluid-pressure actuator unit

#112
20110088789
2011-04-21

Hydraulic control valve

#113
20110082610
2011-04-07

Controller of hybrid construction machine

#114
20110072810
2011-03-31

Controller of hybrid construction machine

#115
20110071738
2011-03-24

Hybrid construction machine

#116
20100089045
2010-04-15

Hydraulic control circuit for construction machine

#117
20100059125
2010-03-11

Balanced pilot operated check valve

#118
20100024410
2010-02-04

Hydraulic system having regeneration modulation

#119
20100000209
2010-01-07

Hydraulic control system in working machine ( as amended

#120
20090277168
2009-11-12

Hybrid system for a powertrain and hydraulic system

#121
20090142201
2009-06-04

Hydraulic flow control system and method

#122
20060156914
2006-07-20

Hydraulic control

#123
20050199120
2005-09-15

Hydraulic arrangement

#124
18988992
2026-01-20

Energy recovery system and control strategy for hydraulic excavator boom