ClassID:

146219

F15B2211/20523 - CPC Classification

Classification description:

Circuits for servomotor systems; Fluid pressure source, e.g. accumulator or variable axial piston pump; Systems with pumps; Type of prime mover Internal combustion engine

Recent Application in this class:
#1
20250116280
2025-04-10

HYDRAULIC DRIVE SYSTEM

#2
20250050538
2025-02-13

MIXER DRUM DRIVE WITH VARIABLE DISPLACEMENT MOTOR

#3
20250012051
2025-01-09

WORK MACHINE

#4
20240301661
2024-09-12

Work Machine

#5
20240091985
2024-03-21

Mixer drum drive with variable displacement motor

#6
20230349402
2023-11-02

Working machine

#7
20230250836
2023-08-10

Integrated high-pressure unit

#8
20230235755
2023-07-27

HYDRAULIC DRIVE SYSTEM

#9
20230096479
2023-03-30

Construction machine

#10
20230085676
2023-03-23

Construction machine

#11
20230026798
2023-01-26

Integrated high-pressure unit

#12
20220252166
2022-08-11

Double-power-supply complex control device

#13
20220196055
2022-06-23

Adaptor for attaching a prime mover to an actuator

#14
20220194564
2022-06-23

Aircraft hydraulic actuation system with chambers for hydraulic fluid

#15
20220120295
2022-04-21

Drive device for hydraulic cylinder in work machine

#16
20220010528
2022-01-13

Anti-stall system for open circuit systems

#17
20210363729
2021-11-25

Hydraulic hybrid system for a work machine and a method of controlling the hydraulic hybrid system

#18
20210354329
2021-11-18

Mixer drum drive with variable displacement motor

#19
20210339811
2021-11-04

Predictively Adjustable Hydraulic Pressure Rails

#20
20210230839
2021-07-29

Construction machine

#21
20210214197
2021-07-15

Adaptor for attaching a prime mover to an actuator

#22
20210180618
2021-06-17

Hydraulic system of working machine

#23
20210032849
2021-02-04

Hydraulic control system, work machine and method for controlling operation of a work attachment

#24
20200332496
2020-10-22

SYSTEMS AND METHODS FOR CONTROL OF A WORK VEHICLE

#25
20200309166
2020-10-01

Hydraulic system and emergency operation method

#26
20200292071
2020-09-17

Method for controlling a hydraulic system

#27
20200291610
2020-09-17

Shovel

#28
20200277751
2020-09-03

Work machine

#29
20200270840
2020-08-27

Hydraulic system for a vehicle as well as a vehicle with such a hydraulic system

#30
20200263379
2020-08-20

Underground construction device

#31
20200166057
2020-05-28

Bracket mount for engine with pump package

#32
20200123737
2020-04-23

Hydraulic system of construction machinery

#33
20200087892
2020-03-19

Work vehicle

#34
20200063643
2020-02-27

Combustion chamber valve and fuel system for driven fastener hand tool

#35
20190329649
2019-10-31

System for assisting the driving of a trailer from an open tipping hydraulic circuit

#36
20190284782
2019-09-19

Construction machine

#37
20190271333
2019-09-05

Hydraulic excavator drive system

#38
20190194909
2019-06-27

Construction machine

#39
20190194904
2019-06-27

Construction machine

#40
20190186106
2019-06-20

Work machine

#41
20190186105
2019-06-20

Work machine

#42
20190145433
2019-05-16

Auxiliary system for vehicle implements

#43
20190120371
2019-04-25

Oil pressure supply system of automatic transmission

#44
20190119879
2019-04-25

Hydraulic system for working machine and control valve

#45
20190112789
2019-04-18

Hydraulic system for working machine

#46
20190112787
2019-04-18

Temperature responsive hydraulic derate

#47
20190112786
2019-04-18

Pump control system of work machine

#48
20190093756
2019-03-28

Hydraulic system for a transmission of a motor vehicle

#49
20190093677
2019-03-28

Vehicle hydraulic system

#50
20190048898
2019-02-14

Hydraulic control device

#51
20190032306
2019-01-31

Control system, work machine, and control method

#52
20180347480
2018-12-06

Hydraulic system and method for controlling same

#53
20180305899
2018-10-25

Control system and work machine

#54
20180274563
2018-09-27

Aircraft hydraulic systems having shared components

#55
20180238025
2018-08-23

Work machine

#56
20180238018
2018-08-23

Control system for construction machine

#57
20180195546
2018-07-12

Adaptor for attaching a prime mover to an actuator

#58
20180195254
2018-07-12

Apparatus and method for controlling construction machine

#59
20180170569
2018-06-21

Engine cooling systems for aircraft

#60
20180127949
2018-05-10

HYDRAULIC CIRCUIT AND WORKING MACHINE

#61
20180119391
2018-05-03

Hydraulic drive system of construction machine

#62
20180099711
2018-04-12

Predictively adjustable hydraulic pressure rails

#63
20180087540
2018-03-29

Electro-hydraulic system with negative flow control

#64
20180038079
2018-02-08

Hydraulic drive system of work machine

#65
20170314578
2017-11-02

Hydraulic pressure supply system

#66
20170292539
2017-10-12

Hydraulic vehicle incorporating efficient energy storage and regeneration system

#67
20170284426
2017-10-05

Construction machine

#68
20170284424
2017-10-05

Hydraulic control apparatus and hydraulic control method

#69
20170284316
2017-10-05

Variable engine speed control

#70
20170268203
2017-09-21

In-vehicle dynometer

#71
20170260033
2017-09-14

Cargo vehicle

#72
20170254308
2017-09-07

Hydrostatic drive

#73
20170234338
2017-08-17

Hydrostatic drive

#74
20170203749
2017-07-20

Engine control device of work machine, work machine, and engine control method of work machine

#75
20170198730
2017-07-13

Hydraulic apparatus

#76
20170198458
2017-07-13

Control device and control method for construction machine

#77
20170159679
2017-06-08

Hydraulic system of work machine and work machine

#78
20170159678
2017-06-08

System having combinable transmission and implement circuits

#79
20170130748
2017-05-11

MULTI-OUTPUT CHARGING DEVICE

#80
20170121940
2017-05-04

Drive device of construction machine

#81
20170107696
2017-04-20

Work machine

#82
20170081826
2017-03-23

Compact wheel loader

#83
20170009428
2017-01-12

Hydraulic fluid energy regeneration device for work machine

#84
20160377097
2016-12-29

Travel and work functions integrated into a hydraulic hybrid system

#85
20160376769
2016-12-29

Hydraulic drive system for working machine including track device of crawler type

#86
20160356021
2016-12-08

Shovel and method of controlling shovel

#87
20160348342
2016-12-01

Hydraulic system of construction machinery and method of controlling hydraulic system

#88
20160341168
2016-11-24

Hydrostatic drive system

#89
20160333903
2016-11-17

Hydraulic system having regeneration and hybrid start

#90
20160333900
2016-11-17

Hydraulic drive system for construction machine

#91
20160312442
2016-10-27

Control system of hybrid construction machine

#92
20160305455
2016-10-20

Double-loop control system with single hydraulic motor

#93
20160290370
2016-10-06

Construction equipment hydraulic system and control method therefor

#94
20160290369
2016-10-06

Hydraulic system and method for controlling same

#95
20160281745
2016-09-29

Integration of swing energy recovery and engine anti-idling systems

#96
20160265561
2016-09-15

Hydraulic drive system for construction machine

#97
20160265195
2016-09-15

Hybrid work machine

#98
20160258133
2016-09-08

Hydraulic drive system for construction machine

#99
20160230787
2016-08-11

IMPLEMENT CARRIER WITH IMPROVED CONTROL OF HYDRAULIC FLUID SUPPLY

#100
20160230785
2016-08-11

Hydraulic control system for auxiliary power source

#101
20160222991
2016-08-04

Hydraulic device

#102
20160222990
2016-08-04

Hydraulic drive system

#103
20160215481
2016-07-28

Control system for hybrid construction machine

#104
20160215478
2016-07-28

Construction machine

#105
20160208831
2016-07-21

System for estimating a sensor output

#106
20160123354
2016-05-05

Shovel and method of controlling shovel

#107
20160102686
2016-04-14

Hydraulic system for construction equipment

#108
20160097405
2016-04-07

Hybrid work machine

#109
20160084277
2016-03-24

Hydraulic system for a working machine and a method for controlling a hydraulic system

#110
20160069428
2016-03-10

Hydraulic system for vehicle

#111
20160069282
2016-03-10

Engine speed controller of work machine

#112
20160061236
2016-03-03

Method for controlling hydraulic system of construction machinery

#113
20160061227
2016-03-03

Vibrating ram arrangement, and method for operating the vibrating ram arrangement

#114
20160047398
2016-02-18

Apparatus for controlling hydraulic pump for construction machine

#115
20160040689
2016-02-11

Device and method for controlling hydraulic pump in construction machine

#116
20160032949
2016-02-04

Slewing drive apparatus for construction machine

#117
20160023699
2016-01-28

Predictively adjustable hydraulic pressure rails

#118
20160010663
2016-01-14

Hydraulic hybrid swing drive system for excavators

#119
20160002889
2016-01-07

Engine-assist device and industrial machine

#120
20150337705
2015-11-26

Hydraulic circuit system for forced regeneration of diesel particulate filter

#121
20150330059
2015-11-19

Liquid-pressure drive system and construction machine including same

#122
20150308080
2015-10-29

Integrated control apparatus and method for engine and hydraulic pump in construction machine

#123
20150267589
2015-09-24

Multi-step regeneration device of DPF and regeneration method therefor

#124
20150252822
2015-09-10

Method for operating a hydraulic system of a self-propelled paver, hydraulic system, especially for using the method, and paver with such a hydraulic system

#125
20150247304
2015-09-03

Implement system having hydraulic start assist

#126
20150233394
2015-08-20

Hybrid shovel and hybrid shovel control method

#127
20150218780
2015-08-06

Construction machine

#128
20150204054
2015-07-23

Hydraulic drive system for construction machine

#129
20150184680
2015-07-02

Torque limit control

#130
20150135693
2015-05-21

Engine control apparatus for work machine and engine control method thereof

#131
20150113971
2015-04-30

Hydraulic control system

#132
20150066313
2015-03-05

Control device and construction machine provided therewith

#133
20150047335
2015-02-19

Mixer drum driving apparatus including a plurality of motors configured to drive an auxiliary fluid pressure pump to rotate

#134
20150040553
2015-02-12

Hybrid working machine

#135
20150025726
2015-01-22

Hybrid construction machine

#136
20140366521
2014-12-18

Hydraulic drive system

#137
20140366518
2014-12-18

Hydraulic system of construction machine

#138
20140366517
2014-12-18

System for reducing fuel consumption in excavator

#139
20140322045
2014-10-30

Engine overload prevention using a speed differential operated relief valve

#140
20140212305
2014-07-31

Drive train of a vehicle

#141
20140174549
2014-06-26

Proportional flow control of a fluid pump assembly

#142
20140039768
2014-02-06

Control system for construction machine

#143
20140033698
2014-02-06

METERLESS HYDRAULIC SYSTEM HAVING FORCE MODULATION

#144
20140033697
2014-02-06

METERLESS HYDRAULIC SYSTEM HAVING FORCE MODULATION

#145
20140023523
2014-01-23

Closed loop drive circuit with external brake assist

#146
20140020375
2014-01-23

Hydraulic working machine

#147
20140013736
2014-01-16

Mixer drum driving device with an auxiliary hydraulic pump to rotate a mixer drum

#148
20140004998
2014-01-02

Hydraulic launch assist system

#149
20130318952
2013-12-05

Method for controlling a hydraulic pump of a wheel loader

#150
20130284532
2013-10-31

SECONDARY STEERING SYSTEM WITH MARGIN PRESSURE DETECTION

#151
20130280111
2013-10-24

Propel circuit and work circuit combinations for a work machine

#152
20130255241
2013-10-03

Method for controlling flow rate of attachment for construction equipment

#153
20130251490
2013-09-26

Working machine with variable displacement hydraulic pump

#154
20130227936
2013-09-05

Hydraulic drive system for construction machine having exhaust gas purification device

#155
20130219874
2013-08-29

Hydraulic arrangement

#156
20130195681
2013-08-01

Method for obtaining a full range of lift speeds using a single input

#157
20130180247
2013-07-18

Electro-hydraulic drive system for a work machine

#158
20130125539
2013-05-23

Hydraulic control device for working vehicle

#159
20130111888
2013-05-09

TORQUE OUTPUT CONTROL FOR SWING PUMP

#160
20130098013
2013-04-25

CLOSED-LOOP SYSTEM HAVING MULTI-CIRCUIT FLOW SHARING

#161
20130098012
2013-04-25

METERLESS HYDRAULIC SYSTEM HAVING MULTI-CIRCUIT RECUPERATION

#162
20130098011
2013-04-25

HYDRAULIC SYSTEM HAVING MULTIPLE CLOSED-LOOP CIRCUITS

#163
20130091837
2013-04-18

Hydraulic transmission system for zero-turn vehicle

#164
20130055704
2013-03-07

Apparatus for controlling raise speed of working machine for heavy equipment

#165
20130048117
2013-02-28

Meterless hydraulic system having displacement control valve

#166
20130047599
2013-02-28

Meterless hydraulic system having load-holding bypass

#167
20130047592
2013-02-28

Meterless hydraulic system having restricted primary makeup

#168
20120304636
2012-12-06

Hydraulic fan circuit

#169
20120304631
2012-12-06

Hydraulic fluid system

#170
20120261010
2012-10-18

Hydraulic system for construction machinery

#171
20120260644
2012-10-18

Engine augmentation of hydraulic control system

#172
20120251332
2012-10-04

Power control apparatus and power control method of construction machine

#173
20120233995
2012-09-20

Hybrid operating machine

#174
20120233993
2012-09-20

Method for controlling a hydraulic system of a working machine

#175
20120221212
2012-08-30

Hydraulic control system implementing pump torque limiting

#176
20120220426
2012-08-30

Charge bypass system for engine start

#177
20120216519
2012-08-30

Hydraulic control system having cylinder flow correction

#178
20120216518
2012-08-30

Hydraulic control system having cylinder stall strategy

#179
20120216517
2012-08-30

Hydraulic control system having cylinder stall strategy

#180
20120198827
2012-08-09

Hydraulic drive system

#181
20120152368
2012-06-21

Independent metering valve with flow limiter

#182
20120134848
2012-05-31

HYDRAULIC FAN CIRCUIT HAVING ENERGY RECOVERY

#183
20120070312
2012-03-22

CONTROLLED HYDRAULIC SYSTEMS

#184
20120036845
2012-02-16

Hydraulic control apparatus for work machine

#185
20120000191
2012-01-05

Hydraulic driving device for work machine

#186
20110308242
2011-12-22

Command based method for allocating fluid flow from a plurality of pumps to multiple hydraulic functions

#187
20110270498
2011-11-03

Control device for hybrid construction machine

#188
20110268588
2011-11-03

CONTROLLER OF HYBRID CONSTRUCTION MACHINE

#189
20110265467
2011-11-03

Control device for hybrid construction machine

#190
20110238264
2011-09-29

Method of controlling hybrid working machine and method of controlling pump output of hybrid working machine

#191
20110197576
2011-08-18

Hydraulic control system in working machine

#192
20110173963
2011-07-21

Low speed hydraulic control for fine control of hydraulic cranes

#193
20110072810
2011-03-31

Controller of hybrid construction machine

#194
20110061375
2011-03-17

Hydraulic drive system

#195
20110060491
2011-03-10

Device for controlling hybrid construction machine

#196
20110035102
2011-02-10

Control device for hybrid construction machine

#197
20100303643
2010-12-02

Fan Drive System

#198
20100293937
2010-11-25

Hydraulic drive with an independent charge pump

#199
20100287924
2010-11-18

Dual pump hydraulic system

#200
20100252354
2010-10-07

Differential pressure control

#201
20100242464
2010-09-30

Load sensing system, working machine comprising the system, and method for controlling a hydraulic function

#202
20100236232
2010-09-23

Drive for a Hydraulic Excavator

#203
20100186402
2010-07-29

Pump torque control system for hydraulic construction machine

#204
20100175948
2010-07-15

HYDRAULIC ACTUATING CIRCUIT FOR POWER-ASSISTED STEERING, AND MOTOR VEHICLE EQUIPPED THEREWITH

#205
20100162593
2010-07-01

Displacement-controlled hydraulic system for multi-function machines

#206
20100154403
2010-06-24

System and method for operating a variable displacement hydraulic pump

#207
20100154401
2010-06-24

Hydraulic control system having flow force compensation

#208
20100154400
2010-06-24

Hydraulic control system utilizing feed-forward control

#209
20100132798
2010-06-03

Control valve actuation

#210
20100107620
2010-05-06

Rotary flow control valve with energy recovery

#211
20100097040
2010-04-22

Electronic control for a hydraulically driven auxiliary power source

#212
20100097038
2010-04-22

Electronic control for a hydraulically driven generator

#213
20100071543
2010-03-25

Hydraulic apparatus

#214
20100058752
2010-03-11

Rotation control system for working-machine pump

#215
20100043420
2010-02-25

Hydraulic system for construction equipment

#216
20100036568
2010-02-11

Method for operating a working machine and a working machine with an improved ability to meet transient loads

#217
20090308068
2009-12-17

CONTROL CIRCUIT FOR CONSTRUCTION MACHINE

#218
20090308066
2009-12-17

Motor control device for construction machinery

#219
20090293470
2009-12-03

Over-loading prevention device of construction machinery

#220
20090293468
2009-12-03

System and method of controlling torque of plural variable displacement hydraulic pumps

#221
20090288408
2009-11-26

HYDRAULIC CIRCUIT, ENERGY RECOVERY DEVICE, AND HYDRAULIC CIRCUIT FOR WORK MACHINE

#222
20090288406
2009-11-26

Drivetrain system having simultaneous displacement control

#223
20090277168
2009-11-12

Hybrid system for a powertrain and hydraulic system

#224
20090241534
2009-10-01

ENERGY ACCUMULATOR UNIT

#225
20090229907
2009-09-17

Hydraulic drive vehicle

#226
20090222176
2009-09-03

LOADER

#227
20090210120
2009-08-20

Hydrostatic regenerative drive system

#228
20090193801
2009-08-06

Hydraulic drive system

#229
20090165451
2009-07-02

HYDRAULIC FLUID ACCUMULATOR WITH INTEGRATED HIGH-PRESSURE AND LOW-PRESSURE CHAMBER

#230
20090158725
2009-06-25

Hydraulic pump with control system

#231
20090151347
2009-06-18

Operation Control Circuit for Construction Machine

#232
20090145123
2009-06-11

Hydraulic circuit having holding valve of external pilot pressure operation type

#233
20090134848
2009-05-28

Electronic control for a hydraulically driven generator

#234
20090107133
2009-04-30

Procedure to align working equipment mounted to a liftable and lowerable hoisting frame of a working machine

#235
20090102273
2009-04-23

Hydraulic drive device for vertical pivoting movement of load carrying platform

#236
20090077958
2009-03-26

Hydraulic circuit structure of work vehicle

#237
20090077839
2009-03-26

Backhoe hydraulic system

#238
20090077837
2009-03-26

Work machine

#239
20090071144
2009-03-19

Actuator control system implementing adaptive flow control

#240
20090071142
2009-03-19

Hydraulic control device for vehicular hydraulic control circuit

#241
20090056324
2009-03-05

Hydraulic control device of construction machinery

#242
20090056322
2009-03-05

System and method for rapidly shaking an implement of a machine

#243
20090055056
2009-02-26

Swing drive system for construction machine

#244
20090036264
2009-02-05

Work machine

#245
20090031891
2009-02-05

Hydraulic circuit for rapid bucket shake out

#246
20090031721
2009-02-05

Method and an arrangement for controlling pump displacement in a work vehicle

#247
20090031719
2009-02-05

Hydraulic Drive System

#248
20090000290
2009-01-01

Energy recovery system

#249
20080314038
2008-12-25

Swing drive device and work machine

#250
20080271941
2008-11-06

Dual hydrostatic vehicle steering system

#251
20080250783
2008-10-16

Flow continuity for multiple hydraulic circuits and associated method

#252
20080236154
2008-10-02

Hydraulic circuit for construction equipment

#253
20080223205
2008-09-18

Hydraulic drive apparatus

#254
20080223028
2008-09-18

Pump flow control of hydraulic circuit and associated method

#255
20080223026
2008-09-18

Hydraulic power management system

#256
20080104952
2008-05-08

Hydraulic circuit

#257
20080053734
2008-03-06

Hydraulic drive vehicle

#258
20080053082
2008-03-06

Straight traveling hydraulic circuit

#259
20080008536
2008-01-10

Laying apparatus for cables, lines, conductors or suchlike, and relative laying method

#260
20070283688
2007-12-13

Arrangement And A Method For Controlling A Work Vehicle

#261
20070278030
2007-12-06

Machine, in particular construction machine

#262
20070271913
2007-11-29

Apparatus for increasing operation speed of boom on excavators

#263
20070261277
2007-11-15

Work machine

#264
20070227135
2007-10-04

Integrated load-sensing hydraulic system

#265
20070210645
2007-09-13

Hydraulic system with engine anti-stall control

#266
20070199440
2007-08-30

Hydraulic system for utility vehicles, in particular agricultural tractors

#267
20070199438
2007-08-30

Control system and control method for fluid pressure actuator and fluid pressure machine

#268
20070186548
2007-08-16

Hydraulic regeneration system

#269
20070169471
2007-07-26

Vehicle steering mechanism

#270
20070107421
2007-05-17

Dual pump dual pressure hydraulic circuit

#271
20070102223
2007-05-10

Hydraulic power unit

#272
20070056439
2007-03-15

Robustly stable servo-controlled metering poppet valve

#273
20060230752
2006-10-19

Hydraulic drive control device

#274
20060185355
2006-08-24

Hydraulic gravitational load energy recuperation

#275
20060156916
2006-07-20

Electronic control for a hydraulically driven generator

#276
20060156713
2006-07-20

Hydraulic drive system

#277
20060120892
2006-06-08

Hydraulic system for mining equipment and method of adjusting power of rock drill machine

#278
20060090949
2006-05-04

Hydrostatic drive system

#279
20060075749
2006-04-13

Hydraulic energy intensifier

#280
20060018765
2006-01-26

Arrangement and a method for controlling a work vehicle

#281
20050232787
2005-10-20

System and method of providing hydraulic pressure for mechanical work from an engine lubricating system

#282
20050226732
2005-10-13

Method for compensating flow rate at neutral position of operation lever of construction equipment

#283
20050144938
2005-07-07

Hydraulic drive unit

#284
20050132702
2005-06-23

Continuously variable torque shredder drive

#285
20050089374
2005-04-28

Laying apparatus for cables, lines, conductors or suchlike, and relative laying method

#286
20050072397
2005-04-07

Control device for at least one consumer, such as a camshaft adjuster, automatic transmission and the like, of motor vehicles

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Signal processing system for construction machine

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Hydraulic pump with alternate power system