ClassID:

146173

F15B21/14 - CPC Classification

Classification description:

Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass Energy-recuperation means

Recent Application in this class:
#1
20260022718
2026-01-22

HYDRAULIC DRIVE DEVICE

#2
20260022712
2026-01-22

HYDRAULIC DRIVE DEVICE

#3
20250382771
2025-12-18

ENERGY RECOVERY PREVENTION FOR A HYDRAULIC SYSTEM

#4
20250361883
2025-11-27

HYDRAULIC SYSTEM

#5
20250250001
2025-08-07

HYDRAULIC ENERGY RETENTION

#6
20250180043
2025-06-05

FLUID PRESSURE CIRCUIT

#7
20240417067
2024-12-19

Hydraulic energy retention

#8
20240401614
2024-12-05

Hydraulic Drive System Having a 2X2Q Pump Unit

#9
20240344536
2024-10-17

HYDRAULIC STABILIZATION DEVICE

#10
20240240658
2024-07-18

HYDRAULIC POWER PACK MODULE

#11
20240117827
2024-04-11

Linear actuator

#12
20240068494
2024-02-29

Controller for hydraulic apparatus

#13
20230332378
2023-10-19

Construction machinery

#14
20230313487
2023-10-05

Hydraulic excavator drive system

#15
20230258206
2023-08-17

Hydraulic Regeneration Circuit with Multiple Speeds

#16
20230250836
2023-08-10

Integrated high-pressure unit

#17
20230250616
2023-08-10

Hydraulic apparatus and method for a vehicle

#18
20230174354
2023-06-08

LIFTING MECHANISM

#19
20230160403
2023-05-25

DEPLOYABLE ENERGY SUPPLY AND MANAGEMENT SYSTEM

#20
20230141425
2023-05-11

Hydraulic powering system and method of operating a hydraulic powering system

#21
20230105014
2023-04-06

Construction machine

#22
20230096479
2023-03-30

Construction machine

#23
20230085676
2023-03-23

Construction machine

#24
20230054596
2023-02-23

Fast acting shuttle spool valve

#25
20230046319
2023-02-16

Dual power electro-hydraulic motion control system

#26
20230026798
2023-01-26

Integrated high-pressure unit

#27
20230011283
2023-01-12

A HYDRAULIC SYSTEM AND A METHOD FOR CONTROLLING A HYDRAULIC SYSTEM OF A WORKING MACHINE

#28
20220397439
2022-12-15

Three-port proportional flow control valve with an integrated turbine for flow rate sensing

#29
20220397211
2022-12-15

Pressure-compensated proportional flow control valve with an integrated turbine for flow rate sensing

#30
20220397133
2022-12-15

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

#31
20220397089
2022-12-15

Valve with an integrated turbine for energy harvesting

#32
20220373004
2022-11-24

Regeneration device, hydraulic drive system equipped with same, and control device therefor

#33
20220364328
2022-11-17

Hydraulic machine

#34
20220364327
2022-11-17

Hydraulic machine

#35
20220298754
2022-09-22

Control valve of hydraulic system for working machine

#36
20220242298
2022-08-04

Vehicle and method with energy recovery lift gate

#37
20220186751
2022-06-16

Hydraulic machine

#38
20220186460
2022-06-16

Hydraulic machinery

#39
20220176327
2022-06-09

Confined plunging liquid jet reactor with energy recovery

#40
20220154743
2022-05-19

Hydraulic circuit with combined compensation and energy recovery function

#41
20220145578
2022-05-12

Construction machine

#42
20220136535
2022-05-05

Hydraulic circuit including hydraulic decompression energy reclamation

#43
20220106766
2022-04-07

CONTROL UNIT FOR A HYDRAULIC SYSTEM

#44
20220060022
2022-02-24

Integrated energy conversion, transfer and storage system

#45
20220002964
2022-01-06

Regeneration system and method of energy released from working implement

#46
20210388857
2021-12-16

Recirculating hydraulic fluid control valve

#47
20210381200
2021-12-09

Hydraulic system for a working machine

#48
20210372087
2021-12-02

Method for controlling a hydraulic system of a working machine

#49
20210372078
2021-12-02

Energy recuperation system and method for construction equipment

#50
20210355973
2021-11-18

Hydrostatic drive

#51
20210317908
2021-10-14

HYDRAULIC DRIVE ACCELERATOR

#52
20210317846
2021-10-14

System for charging and discharging at least one hydraulic accumulator

#53
20210270294
2021-09-02

A HYDRAULIC SYSTEM FOR A LOAD HANDLING VEHICLE

#54
20210254642
2021-08-19

Hydraulic circuit

#55
20210246633
2021-08-12

Hydraulic circuit for construction equipment

#56
20210245468
2021-08-12

Apparatus for the controlled return of the stems in cylinders applied to stamping presses

#57
20210239136
2021-08-05

Hydraulic axis with energy storage feature

#58
20210214920
2021-07-15

Construction machine

#59
20210190095
2021-06-24

Hydraulic system with an energy recovery circuit

#60
20210189694
2021-06-24

Hydraulic system with energy recovery

#61
20210188072
2021-06-24

Hydraulic energy collection system

#62
20210170709
2021-06-10

Apparatus and method for cylinder changeover with a mechanically lockable force-building cylinder

#63
20210148087
2021-05-20

Boom potential energy recovery of hydraulic excavator

#64
20210131452
2021-05-06

Hydraulic energy recovery apparatus for working machine

#65
20210129805
2021-05-06

Hydraulic clutches, gearboxes, transmissions, and energy recovery systems

#66
20210115648
2021-04-22

Heavy equipment boom system and method and hydraulic circuit therefor

#67
20210114325
2021-04-22

Press drive with energy recovery

#68
20210108657
2021-04-15

FLUID CIRCUIT FOR AIR CYLINDERS

#69
20210095698
2021-04-01

Actuating drive having a hydraulic outflow booster

#70
20210062459
2021-03-04

Electric excavator

#71
20210002864
2021-01-07

Boom potential energy recovery of hydraulic excavator

#72
20200407946
2020-12-31

Hydraulic system of construction machine

#73
20200386244
2020-12-10

Hydraulic powering system and method of operating a hydraulic powering system

#74
20200347575
2020-11-05

Drive system of construction machine

#75
20200299932
2020-09-24

Regeneration valve for a hydraulic circuit

#76
20200283995
2020-09-10

Electro-hydraulic arrangement for an earthmoving machine

#77
20200277755
2020-09-03

Hydraulic drive system of construction machine

#78
20200248730
2020-08-06

RECAPTURE OF WASTED ENERGY IN SYSTEM

#79
20200248729
2020-08-06

Device having hybrid hydraulic-electric architecture

#80
20200240446
2020-07-30

Air preparation device for motor vehicles

#81
20200232488
2020-07-23

Hydraulic drive system

#82
20200232482
2020-07-23

Hydraulic circuit

#83
20200221637
2020-07-16

Crop machine with an electronically controlled hydraulic cylinder flotation system

#84
20200191176
2020-06-18

Recapture of wasted energy in system

#85
20200173145
2020-06-04

Work machine hydraulic control system

#86
20200149563
2020-05-14

Methods and devices for conserving energy in fluid power production

#87
20200149250
2020-05-14

Energy regeneration device and work machine provided with energy regeneration device

#88
20200123737
2020-04-23

Hydraulic system of construction machinery

#89
20200056349
2020-02-20

Work machine

#90
20200040920
2020-02-06

Fluid pressure circuit

#91
20200040547
2020-02-06

Work machine

#92
20200032485
2020-01-30

Construction machine

#93
20200018328
2020-01-16

Dual power electro-hydraulic motion control system

#94
20190337775
2019-11-07

Crane hydraulic control system and crane

#95
20190323527
2019-10-24

Hydraulic system

#96
20190316611
2019-10-17

Hydraulic excavator drive system

#97
20190316610
2019-10-17

Air supply unit for a pneumatic system of a commercial vehicle

#98
20190305558
2019-10-03

Integrated energy conversion, transfer and storage system

#99
20190301140
2019-10-03

Energy regeneration device and work machine provided with energy regeneration device

#100
20190292752
2019-09-26

Boom potential energy recovery of hydraulic excavator

#101
20190277311
2019-09-12

HYDRAULIC SYSTEM AND METHOD OF CONTROLLING HYDRAULIC ACTUATOR

#102
20190277310
2019-09-12

Driving method and driving device of fluid pressure cylinder

#103
20190271993
2019-09-05

Hydraulic valve with switching regeneration circuit

#104
20190234049
2019-08-01

Work machine having hydraulics for energy recovery

#105
20190211850
2019-07-11

Digital-switching fluidic power supply and hydrostatic transmission with regenerative brake

#106
20190203746
2019-07-04

System for recovering energy from a hydraulic actuator

#107
20190203444
2019-07-04

Electro hydraulic drive and control system

#108
20190195350
2019-06-27

ELECTRO-HYDRAULIC SYSTEM FOR THE ACTUATION OF MULTIPLE CLUTCHES AND GEAR SELECTORS WITH HIGH-PRECISION CONTROL OF SEVERAL SHIFT GEARBOX UNITS SIMULTANEOUSLY

#109
20190186106
2019-06-20

Work machine

#110
20190177952
2019-06-13

Hydraulic driving device for working machine

#111
20190170170
2019-06-06

Hydraulic systems and components including wireless control technology

#112
20190169820
2019-06-06

Energy regeneration device and work machine provided with energy regeneration device

#113
20190127955
2019-05-02

CONTROL SYSTEM FOR HYBRID CONSTRUCTION MACHINE

#114
20190106861
2019-04-11

Work machine

#115
20190063039
2019-02-28

Hydraulic energy regeneration system for work machine

#116
20190032686
2019-01-31

SYSTEM AND METHOD FOR PNEUMATICALLY CHARGING AND DISCHARGING A WORKING VESSEL USING 2-WAY VALVES AND 3-WAY VALVES

#117
20190024343
2019-01-24

Excavator and control valve for excavator

#118
20190017469
2019-01-17

Actuator for use in aircraft

#119
20190003494
2019-01-03

HYDRAULIC DRIVING DEVICE FOR CARGO HANDLING VEHICLE

#120
20190002258
2019-01-03

Power system for lifting apparatus

#121
20180359920
2018-12-20

Crop machine with an electronically controlled hydraulic cylinder flotation system

#122
20180355892
2018-12-13

Fluid control valve

#123
20180347293
2018-12-06

Multi-mode hydraulic cylinder control system for hydraulic workover unit

#124
20180347152
2018-12-06

Kinetic energy recovery system for a machine

#125
20180334784
2018-11-22

Hydraulic system for working machine and control valve

#126
20180297081
2018-10-18

Vibration piston arrangement in the squeezing cylinder of a track tamper

#127
20180291935
2018-10-11

HYDRAULIC DRIVE SYSTEM OF CONSTRUCTION MACHINE

#128
20180274208
2018-09-27

Construction machine

#129
20180266447
2018-09-20

Pump-controlled hydraulic circuits for operating a differential hydraulic actuator

#130
20180251958
2018-09-06

Hydraulic driving apparatus of work machine

#131
20180238025
2018-08-23

Work machine

#132
20180216317
2018-08-02

Boom potential energy recovery of hydraulic excavator

#133
20180195538
2018-07-12

Energy-saving hydraulic system

#134
20180195254
2018-07-12

Apparatus and method for controlling construction machine

#135
20180172039
2018-06-21

Energy recovery system and method for hydraulic tool

#136
20180163753
2018-06-14

Regenerative energy capturing and launching assistant

#137
20180156250
2018-06-07

Variable booster for hybrid pneumatic regenerative system

#138
20180156244
2018-06-07

Split spool valve

#139
20180153102
2018-06-07

Crop machine with an electronically controlled hydraulic cylinder flotation system

#140
20180153101
2018-06-07

Crop machine with an electronically controlled hydraulic cylinder flotation system

#141
20180100525
2018-04-12

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

#142
20180087243
2018-03-29

Hydraulic driving device of work machine

#143
20180066416
2018-03-08

Hydraulic Drive System for work machine

#144
20180044890
2018-02-15

Hydraulic energy regeneration system for work machine

#145
20180038333
2018-02-08

Construction machine starting assist system

#146
20180023271
2018-01-25

Variable-speed volume-control direct-drive all-electric hydraulic excavator driving and energy recovery system

#147
20180017087
2018-01-18

Hydraulic actuator control circuit

#148
20180016770
2018-01-18

Shovel and method of driving shovel

#149
20170363122
2017-12-21

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

#150
20170363115
2017-12-21

Device for the direct recovery of hydraulic energy by means of a single-acting hydraulic cylinder

#151
20170363112
2017-12-21

Device for recovering hydraulic energy by connecting two differential cylinders

#152
20170356476
2017-12-14

ELECTRO HYDROSTATIC ACTUATORS

#153
20170342685
2017-11-30

Hydraulic drive system of construction machine

#154
20170314586
2017-11-02

CONTROL SYSTEM OF HYBRID CONSTRUCTION MACHINE

#155
20170314233
2017-11-02

CONTROL SYSTEM OF HYBRID CONSTRUCTION MACHINE

#156
20170306590
2017-10-26

Hydraulic drive system of construction machine

#157
20170298590
2017-10-19

Hydraulic drive system for work machine

#158
20170284388
2017-10-05

Industrial system with synthetically commutated variable displacement fluid working machine

#159
20170284064
2017-10-05

Construction machine

#160
20170279303
2017-09-28

Hydraulic based efficient renewable energy storage and regeneration system

#161
20170276155
2017-09-28

Hydraulic drive system for work machine

#162
20170276151
2017-09-28

HYDRAULIC CIRCUIT FOR CONSTRUCTION EQUIPMENT

#163
20170268541
2017-09-21

Method and system for recovering and utilizing operating energy of crane, and crane

#164
20170268539
2017-09-21

Plunger pressure accumulator

#165
20170241454
2017-08-24

Device for recuperation of hydraulic energy and working machine with corresponding device

#166
20170241445
2017-08-24

Fluid systems for machines with integrated energy recovery circuit

#167
20170234338
2017-08-17

Hydrostatic drive

#168
20170234334
2017-08-17

Hydraulic drive system for work machine

#169
20170204887
2017-07-20

Shovel

#170
20170198731
2017-07-13

Hydraulic drive device

#171
20170198730
2017-07-13

Hydraulic apparatus

#172
20170175782
2017-06-22

Construction machinery

#173
20170130744
2017-05-11

System and method for hydraulic energy recovery

#174
20170130739
2017-05-11

System and method of hydraulic energy recovery for machine start-stop and machine ride control

#175
20170130426
2017-05-11

Working machine

#176
20170114804
2017-04-27

DEVICE FOR RECOVERING HYDRAULIC ENERGY IN AN IMPLEMENT AND A CORRESPONDING IMPLEMENT

#177
20170114518
2017-04-27

Hydraulic hybrid circuit with energy storage for excavators or other heavy equipment

#178
20170113663
2017-04-27

Energy recovery system

#179
20170101977
2017-04-13

Wave energy absorption device, a power take-off assembly and a wave energy system

#180
20170082123
2017-03-23

Near isothermal combined compressed gas/pumped-hydro electricity storage with waste heat recovery capabilities

#181
20170073932
2017-03-16

Hydraulic fluid energy recovery system for work

#182
20170073931
2017-03-16

Work machine

#183
20170058487
2017-03-02

Construction machine

#184
20170058486
2017-03-02

Hydraulic drive apparatus for construction machine

#185
20170023025
2017-01-26

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

#186
20170016208
2017-01-19

Work machine

#187
20170009632
2017-01-12

Apparatus for transferring recovered power of waste heat recovery unit

#188
20170009428
2017-01-12

Hydraulic fluid energy regeneration device for work machine

#189
20160377097
2016-12-29

Travel and work functions integrated into a hydraulic hybrid system

#190
20160369821
2016-12-22

System and method for storing energy

#191
20160333903
2016-11-17

Hydraulic system having regeneration and hybrid start

#192
20160312443
2016-10-27

CONTROL SYSTEM OF HYBRID CONSTRUCTION MACHINE

#193
20160312442
2016-10-27

Control system of hybrid construction machine

#194
20160305455
2016-10-20

Double-loop control system with single hydraulic motor

#195
20160289925
2016-10-06

Rotatory energy recycling control device for hydraulic excavator

#196
20160289923
2016-10-06

Construction machinery

#197
20160281746
2016-09-29

Pneumatic actuator system and method for controlling such as system

#198
20160281745
2016-09-29

Integration of swing energy recovery and engine anti-idling systems

#199
20160281329
2016-09-29

Engine assist by recovering swing kinetic energy

#200
20160250595
2016-09-01

Seawater desalination system and energy recovery device

#201
20160238041
2016-08-18

Hydraulic Pressure Circuit and Working Machine

#202
20160237648
2016-08-18

Control system for hybrid construction machine

#203
20160215481
2016-07-28

Control system for hybrid construction machine

#204
20160186785
2016-06-30

Hydraulic energy recovery system

#205
20160153473
2016-06-02

Shovel

#206
20160146232
2016-05-26

Energy regeneration system for construction machine

#207
20160138618
2016-05-19

Hydraulic regenerative and recovery parasitic mitigation system

#208
20160131130
2016-05-12

Power unit of hydraulic pumping unit and corresponding hydraulic pumping unit

#209
20160123308
2016-05-05

GRAVITATIONAL ENERGY SYSTEM

#210
20160115672
2016-04-28

Power system for a working machine

#211
20160108933
2016-04-21

Method and system for storing and reusing hydraulic energy

#212
20160102686
2016-04-14

Hydraulic system for construction equipment

#213
20160091000
2016-03-31

DEVICE FOR THE STORAGE AND GENERATION OF POWER

#214
20160083933
2016-03-24

Regenerative circuit for articulated joint

#215
20160061232
2016-03-03

Energy efficient fluid powered linear actuator with variable area

#216
20160061229
2016-03-03

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

#217
20160053782
2016-02-25

Storage and delivery of supplemental power

#218
20160030887
2016-02-04

Seawater desalination system and energy recovery apparatus

#219
20160010663
2016-01-14

Hydraulic hybrid swing drive system for excavators

#220
20160002889
2016-01-07

Engine-assist device and industrial machine

#221
20150377344
2015-12-31

Hydraulic pressure supply apparatus

#222
20150377264
2015-12-31

Hydraulic system for construction machinery

#223
20150361998
2015-12-17

Hydraulic system with energy recovery

#224
20150354172
2015-12-10

Hydraulic fluid energy recovery apparatus for work machine

#225
20150300384
2015-10-22

Hydraulic system having energy recovery

#226
20150292183
2015-10-15

Hydraulic system for work machine

#227
20150275939
2015-10-01

Hydraulic circuit for construction machine

#228
20150275938
2015-10-01

Control system for hybrid construction machine

#229
20150267725
2015-09-24

Engine system utilizing hydraulic pressure

#230
20150252554
2015-09-10

Hydraulic drive system for construction machine

#231
20150247513
2015-09-03

Machine having hydraulic start assist system

#232
20150247305
2015-09-03

Construction machinery

#233
20150247304
2015-09-03

Implement system having hydraulic start assist

#234
20150240450
2015-08-27

Shovel

#235
20150225929
2015-08-13

Shovel

#236
20150225928
2015-08-13

Shovel

#237
20150218780
2015-08-06

Construction machine

#238
20150204356
2015-07-23

Hydrostatic drive system

#239
20150197915
2015-07-16

Boom cylinder dig flow regeneration

#240
20150192148
2015-07-09

HYDRAULIC CIRCUIT FOR WORKING MACHINE, COMPRISING ACCUMULATOR

#241
20150192017
2015-07-09

Hydrostatic energy generator

#242
20150191897
2015-07-09

Hybrid apparatus and method for hydraulic systems

#243
20150184681
2015-07-02

Actuator

#244
20150184364
2015-07-02

Control system for hybrid construction machine

#245
20150176617
2015-06-25

Energy recapture system for hydraulic elevators

#246
20150176609
2015-06-25

Control system for hybrid construction machine

#247
20150176226
2015-06-25

Drive system, in particular for a self-propelled construction machine, in particular a soil compactor

#248
20150174997
2015-06-25

Drive system, in particular for a self-propelled construction machine, in particular a soil compactor

#249
20150167699
2015-06-18

Switching valve

#250
20150165887
2015-06-18

Hydrostatic drive with energy storage

#251
20150152900
2015-06-04

Control system for construction machine

#252
20150152894
2015-06-04

Actuator unit

#253
20150152890
2015-06-04

Construction machine and controller

#254
20150152889
2015-06-04

System for improving the energy efficiency in hydraulic systems

#255
20150082783
2015-03-26

Energy regeneration type forklift hydraulic system

#256
20150075150
2015-03-19

Closed hydraulic circuit

#257
20150059568
2015-03-05

Hydraulic control circuit with regeneration valve

#258
20150059328
2015-03-05

FLUID PRESSURE DRIVE UNIT

#259
20150059325
2015-03-05

Hybrid Apparatus and Method for Hydraulic Systems

#260
20150033727
2015-02-05

Hybrid construction machine

#261
20150033726
2015-02-05

Control system for a hybrid construction machine

#262
20150030424
2015-01-29

Intelligent boom control hydraulic system

#263
20150025726
2015-01-22

Hybrid construction machine

#264
20150020511
2015-01-22

METHOD FOR ENERGY RECOVERY OF HYDRAULIC MOTOR

#265
20150013324
2015-01-15

Forklift hydraulic control apparatus

#266
20150013323
2015-01-15

Circuit pressure control device, hydraulic control circuit using circuit pressure control unit, and hydraulic control circuit of construction machine

#267
20150013320
2015-01-15

Hydraulic drive system

#268
20150007557
2015-01-08

Boom driving device

#269
20140369866
2014-12-18

Hydraulic drive device for cargo handling vehicle

#270
20140366951
2014-12-18

Method for controlling lowering of an implement of a working machine

#271
20140331664
2014-11-13

Slewing type working machine

#272
20140325975
2014-11-06

SWING RELIEF ENERGY REGENERATION APPARATUS OF AN EXCAVATOR

#273
20140325974
2014-11-06

Hydraulic hybrid system for rotatory applications

#274
20140318115
2014-10-30

System for improving the energy efficiency in hydraulic systems, piston accumulator and pressure accumulator provided for such a system

#275
20140283509
2014-09-25

Power regeneration device for working machine and working machine

#276
20140274522
2014-09-18

Hydraulic hybrid system

#277
20140260232
2014-09-18

Methods and systems for flow sharing in a hydraulic transformer system with multiple pumps

#278
20140260222
2014-09-18

Hydraulic regeneration system and method for a material handling vehicle

#279
20140245729
2014-09-04

Hydraulic control device and operating machine having the same

#280
20140230420
2014-08-21

Energy recovery system for hydraulic machine

#281
20140202545
2014-07-24

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