ClassID:

146222

F15B2211/20546 - page 2 - CPC Classification

Classification description:

Circuits for servomotor systems; Fluid pressure source, e.g. accumulator or variable axial piston pump; Systems with pumps; Type of pump variable capacity

Recent Application in this class:
#301
20150322648
2015-11-12

Device and method for controlling flow rate in construction machinery

#302
20150316079
2015-11-05

Control valve and system with primary and auxiliary function control

#303
20150308625
2015-10-29

Hydraulic control arrangement for a plurality of actuators

#304
20150308080
2015-10-29

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

#305
20150308078
2015-10-29

Automatic control system and method for joystick control-based construction equipment

#306
20150300378
2015-10-22

Hydraulic control device for work machine

#307
20150292526
2015-10-15

Hydraulic driving system

#308
20150292183
2015-10-15

Hydraulic system for work machine

#309
20150275931
2015-10-01

Turbine valve actuator

#310
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

#311
20150252820
2015-09-10

Hydraulic driving apparatus for working machine

#312
20150252819
2015-09-10

Work machine

#313
20150247305
2015-09-03

Construction machinery

#314
20150247304
2015-09-03

Implement system having hydraulic start assist

#315
20150240455
2015-08-27

Hydraulic driving system for construction machine

#316
20150226234
2015-08-13

Hydraulic actuator system

#317
20150208571
2015-07-30

Agricultural implement with electro-hydraulic cylinders

#318
20150204358
2015-07-23

Hydraulic system for extreme climates

#319
20150176609
2015-06-25

Control system for hybrid construction machine

#320
20150152890
2015-06-04

Construction machine and controller

#321
20150135697
2015-05-21

Driving device for work machine and work machine equipped therewith

#322
20150135693
2015-05-21

Engine control apparatus for work machine and engine control method thereof

#323
20150107236
2015-04-23

Hydraulic closed circuit system

#324
20150101676
2015-04-16

Valve block having a valve assembly

#325
20150096290
2015-04-09

Hydraulic system

#326
20150075150
2015-03-19

Closed hydraulic circuit

#327
20150059568
2015-03-05

Hydraulic control circuit with regeneration valve

#328
20150059329
2015-03-05

Hydraulic system for construction equipment

#329
20150059328
2015-03-05

FLUID PRESSURE DRIVE UNIT

#330
20150044007
2015-02-12

Hydraulic control device and construction machine provided with same

#331
20150040552
2015-02-12

Hydraulic circuit for construction machine and control device for same

#332
20150033719
2015-02-05

Reducing dig force in hydraulic implements

#333
20150030424
2015-01-29

Intelligent boom control hydraulic system

#334
20150015054
2015-01-15

Transport vehicle

#335
20150013323
2015-01-15

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

#336
20150013319
2015-01-15

Hydraulic load-sensing control arrangement

#337
20140366517
2014-12-18

System for reducing fuel consumption in excavator

#338
20140345265
2014-11-27

Hydraulic drive system

#339
20140338320
2014-11-20

Oil level control device

#340
20140322045
2014-10-30

Engine overload prevention using a speed differential operated relief valve

#341
20140283510
2014-09-25

Hydraulic drive system

#342
20140271066
2014-09-18

Independent load sensing for a vehicle hydraulic system

#343
20140260232
2014-09-18

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

#344
20140245732
2014-09-04

Proportional directional control valve, and hydraulic circuit and hydropneumatic suspension system having such a valve

#345
20140245730
2014-09-04

Priority control system for construction machine

#346
20140245729
2014-09-04

Hydraulic control device and operating machine having the same

#347
20140230420
2014-08-21

Energy recovery system for hydraulic machine

#348
20140212305
2014-07-31

Drive train of a vehicle

#349
20140208734
2014-07-31

Work machine

#350
20140182279
2014-07-03

Shovel and method of controlling shovel

#351
20140178167
2014-06-26

Rotation control device and construction machine including rotation control device

#352
20140174068
2014-06-26

Hydraulic drive system for construction machine

#353
20140166114
2014-06-19

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

#354
20140144130
2014-05-29

Arrangement for charging an accumulator

#355
20140130487
2014-05-15

Hydraulic drive system

#356
20140130484
2014-05-15

Pressure medium system, in particular hydraulic system

#357
20140123847
2014-05-08

Hydraulic excavator

#358
20140123639
2014-05-08

Hydraulic drive system

#359
20140123634
2014-05-08

Hydraulic system and a method for controlling a hydraulic system

#360
20140123633
2014-05-08

Energy recovery method and system

#361
20140116039
2014-05-01

Apparatus for controlling/regulating the travel speed of a utility vehicle and method for same

#362
20140116038
2014-05-01

Hydraulic system with open loop electrohydraulic pressure compensation

#363
20140102289
2014-04-17

Shovel and method for controlling shovel

#364
20140099212
2014-04-10

Automatic oil spill detection system

#365
20140096581
2014-04-10

Extrusion press

#366
20140060031
2014-03-06

Hydraulic control system having swing energy recovery

#367
20140060025
2014-03-06

Hydraulic control system having electronic flow limiting

#368
20140060020
2014-03-06

Hydraulic control system having over-pressure protection

#369
20140060018
2014-03-06

HYDRAULIC CONTROL SYSTEM

#370
20140039768
2014-02-06

Control system for construction machine

#371
20140034135
2014-02-06

Hydraulic system with a dynamic seal

#372
20140033695
2014-02-06

Hydraulic system for hydraulic working machine

#373
20140033690
2014-02-06

MACHINE HYDRAULIC SYSTEM HAVING FINE CONTROL MODE

#374
20140026550
2014-01-30

Hydraulic energy recovery system

#375
20140023523
2014-01-23

Closed loop drive circuit with external brake assist

#376
20140020375
2014-01-23

Hydraulic working machine

#377
20140007962
2014-01-09

Apparatus for improving excavating operation characteristic and grading operation characteristic of excavator

#378
20140007942
2014-01-09

Method for improving excavating operation characteristic and grading operation characteristic of excavator

#379
20140004998
2014-01-02

Hydraulic launch assist system

#380
20130318971
2013-12-05

Power source apparatus and hybrid construction machine equipped with same

#381
20130318959
2013-12-05

Hydraulic Circuits with Energy Conservation Features for Overrunning Load Conditions

#382
20130318955
2013-12-05

Electro-hydraulic system for recovering and reusing potential energy

#383
20130312403
2013-11-28

Hydraulic system for construction machine having electronic hydraulic pump

#384
20130298541
2013-11-14

Load energy assist and horsepower management system

#385
20130289835
2013-10-31

Drive control system for construction machinery

#386
20130283773
2013-10-31

System and method for identifying impending hydraulic pump failure

#387
20130280111
2013-10-24

Propel circuit and work circuit combinations for a work machine

#388
20130263583
2013-10-10

Method of controlling the flow rate of a variable capacity hydraulic pump for a construction apparatus

#389
20130255244
2013-10-03

Hydraulic system for construction machine including emergency control unit for electric hydraulic pump

#390
20130255241
2013-10-03

Method for controlling flow rate of attachment for construction equipment

#391
20130251490
2013-09-26

Working machine with variable displacement hydraulic pump

#392
20130236272
2013-09-12

Hydraulic system and crane

#393
20130232963
2013-09-12

Digital hydraulic transformer and method for recovering energy and leveling hydraulic system loads

#394
20130226415
2013-08-29

Continuously Productive Machine During Hydraulic System Overheat Condition

#395
20130219874
2013-08-29

Hydraulic arrangement

#396
20130213030
2013-08-22

Hydrostatic drive system

#397
20130213024
2013-08-22

Hydraulic drive and method for controlling such a hydraulic drive

#398
20130205765
2013-08-15

Method for controlling a hydraulic system of a working machine

#399
20130199168
2013-08-08

Apparatus and method for recuperation of hydraulic energy

#400
20130195681
2013-08-01

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

#401
20130180247
2013-07-18

Electro-hydraulic drive system for a work machine

#402
20130167518
2013-07-04

Control arrangement and method for activating a plurality of hydraulic consumers

#403
20130152565
2013-06-20

HYDRAULIC SYSTEM HAVING ENERGY RECOVERY

#404
20130139678
2013-06-06

Hydraulic drive system for hydraulic working machine

#405
20130125539
2013-05-23

Hydraulic control device for working vehicle

#406
20130125536
2013-05-23

System and method for energy recovery

#407
20130115014
2013-05-09

Hydrostatic drive for a machine

#408
20130111888
2013-05-09

TORQUE OUTPUT CONTROL FOR SWING PUMP

#409
20130098458
2013-04-25

HYDRAULIC SYSTEM HAVING MULTIPLE CLOSED-LOOP CIRCUITS

#410
20130098024
2013-04-25

Hydraulic system

#411
20130098023
2013-04-25

Energy recovery control circuit and work machine

#412
20130098021
2013-04-25

Hydraulic pump control system for construction machinery

#413
20130098020
2013-04-25

Meterless hydraulic system having flow sharing and combining functionality

#414
20130098019
2013-04-25

Meterless hydraulic system having flow sharing and combining functionality

#415
20130098018
2013-04-25

Hydraulic system

#416
20130098017
2013-04-25

Hydraulic system

#417
20130098016
2013-04-25

Meterless hydraulic system having flow sharing and combining functionality

#418
20130098014
2013-04-25

Closed-loop hydraulic system having force modulation

#419
20130098013
2013-04-25

CLOSED-LOOP SYSTEM HAVING MULTI-CIRCUIT FLOW SHARING

#420
20130098012
2013-04-25

METERLESS HYDRAULIC SYSTEM HAVING MULTI-CIRCUIT RECUPERATION

#421
20130098011
2013-04-25

HYDRAULIC SYSTEM HAVING MULTIPLE CLOSED-LOOP CIRCUITS

#422
20130098010
2013-04-25

Closed-loop hydraulic system having priority-based sharing

#423
20130091837
2013-04-18

Hydraulic transmission system for zero-turn vehicle

#424
20130081704
2013-04-04

Meterless hydraulic system having multi-actuator circuit

#425
20130081385
2013-04-04

Meterless hydraulic system having multi-actuator circuit

#426
20130081384
2013-04-04

Meterless hydraulic system having pump protection

#427
20130081383
2013-04-04

Closed-loop hydraulic system having energy recovery

#428
20130042935
2013-02-21

Hydraulic switching mechanism for mobile hydraulics, mobile hydraulic machine and valve unit

#429
20130001492
2013-01-03

Hydraulic circuit for counterweight attaching/detaching device

#430
20130000293
2013-01-03

Hydraulic systems utilizing combination open- and closed-loop pump systems

#431
20130000291
2013-01-03

Hydraulic circuit having energy storage and reuse

#432
20130000290
2013-01-03

Energy recovery system having accumulator and variable relief

#433
20120330515
2012-12-27

Control device and control method for working mechanism of construction vehicle

#434
20120312007
2012-12-13

Control system for hybrid construction machine

#435
20120304636
2012-12-06

Hydraulic fan circuit

#436
20120304630
2012-12-06

Control system for construction machine

#437
20120285159
2012-11-15

Hydraulic driving apparatus for working machine

#438
20120285152
2012-11-15

Hydraulic driving apparatus for working machine

#439
20120260644
2012-10-18

Engine augmentation of hydraulic control system

#440
20120240566
2012-09-27

Hydraulic controller

#441
20120233996
2012-09-20

System for allocating fluid from multiple pumps to a plurality of hydraulic functions on a priority basis

#442
20120233993
2012-09-20

Method for controlling a hydraulic system of a working machine

#443
20120227391
2012-09-13

Device and method for controlling hydraulic pump of construction machinery

#444
20120224983
2012-09-06

MULTI-WAY VALVE, HYDRAULIC DEVICE AND CONCRETE PUMP VEHICLE

#445
20120221212
2012-08-30

Hydraulic control system implementing pump torque limiting

#446
20120216519
2012-08-30

Hydraulic control system having cylinder flow correction

#447
20120216518
2012-08-30

Hydraulic control system having cylinder stall strategy

#448
20120216517
2012-08-30

Hydraulic control system having cylinder stall strategy

#449
20120204549
2012-08-16

CONDITIONAL LOAD SENSE CONTROL

#450
20120198827
2012-08-09

Hydraulic drive system

#451
20120189463
2012-07-26

Hydraulic pump operating device and method for use in hydraulic system

#452
20120185141
2012-07-19

Work vehicle and work vehicle control method

#453
20120180472
2012-07-19

Fixed/variable hybrid system

#454
20120163949
2012-06-28

Hydraulic drive device for hydraulic working machine

#455
20120151909
2012-06-21

LOAD SENSING HYDRAULIC SYSTEM

#456
20120151904
2012-06-21

Hydraulic control system having energy recovery

#457
20120144820
2012-06-14

Supplementary boosting for hydrostatic transmission circuit

#458
20120131913
2012-05-31

Hydraulic swing-controlling apparatus of work machine

#459
20120093624
2012-04-19

Work machine and control method for work machines

#460
20120067432
2012-03-22

Hydraulic system and a working machine comprising such a hydraulic system

#461
20120055050
2012-03-08

Multi-function wheel loader linkage control with optimized power management

#462
20120048409
2012-03-01

Hydraulic circuit for working machine

#463
20120043154
2012-02-23

HYDRAULIC SYSTEM

#464
20120000191
2012-01-05

Hydraulic driving device for work machine

#465
20110308242
2011-12-22

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

#466
20110302913
2011-12-15

Hydrostatic System Having A Hydropneumatic Accumulator

#467
20110290353
2011-12-01

Hydraulic system for aircraft actuators

#468
20110289908
2011-12-01

Hydraulic system having implement and steering flow sharing

#469
20110278068
2011-11-17

Regenerative drive mechanism for hydraulic feed cylinders in hydrostatic or hydraulic circuits

#470
20110268588
2011-11-03

CONTROLLER OF HYBRID CONSTRUCTION MACHINE

#471
20110265467
2011-11-03

Control device for hybrid construction machine

#472
20110264335
2011-10-27

ROBUST CONTROL FOR ENGINE ANTI-STALL

#473
20110253239
2011-10-20

Active implement down force system with automatic latching of tractor power beyond pressure

#474
20110252778
2011-10-20

Hydraulic system

#475
20110173964
2011-07-21

Hydraulic drive system for construction machine

#476
20110168283
2011-07-14

Hydraulic Circuit For Working Machine

#477
20110158830
2011-06-30

Negative control type hydraulic system

#478
20110146258
2011-06-23

Hydraulic Circuit

#479
20110094280
2011-04-28

Apparatus for hydraulically actuating processing machines such as metal forming machines and method for actuating such metal forming machines

#480
20110082610
2011-04-07

Controller of hybrid construction machine

#481
20110072810
2011-03-31

Controller of hybrid construction machine

#482
20110072809
2011-03-31

Hydraulic system and method for control

#483
20110061375
2011-03-17

Hydraulic drive system

#484
20110060491
2011-03-10

Device for controlling hybrid construction machine

#485
20110035102
2011-02-10

Control device for hybrid construction machine

#486
20110023477
2011-02-03

Hydrostatic circuit lock valve components, circuits, systems, and method

#487
20110020146
2011-01-27

Swing drive controlling system for construction machine

#488
20110017310
2011-01-27

FLUID VALVE ARRANGEMENT

#489
20110017308
2011-01-27

Apparatus, a control circuit and a method for producing pressure and volume flow

#490
20110014062
2011-01-20

Control device of hydraulically driven fan

#491
20110011356
2011-01-20

Fan Drive Controlling Device and Construction Machine

#492
20110011076
2011-01-20

Operating oil supplying device and construction machine

#493
20110010047
2011-01-13

Controller of hybrid construction machine

#494
20110000203
2011-01-06

Hydraulic system having multiple actuators and an associated control method

#495
20110000202
2011-01-06

Active hydraulic regeneration for motion control

#496
20100293936
2010-11-25

Hydraulic system with improved complex operation

#497
20100242464
2010-09-30

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

#498
20100186402
2010-07-29

Pump torque control system for hydraulic construction machine

#499
20100186401
2010-07-29

Method and hydraulic control system for supplying pressure medium to at least one hydraulic consumer

#500
20100180761
2010-07-22

Hydraulic control system

#501
20100162885
2010-07-01

System and method for enabling floating of earthmoving implements

#502
20100162593
2010-07-01

Displacement-controlled hydraulic system for multi-function machines

#503
20100154400
2010-06-24

Hydraulic control system utilizing feed-forward control

#504
20100115938
2010-05-13

SPEED CONTROL DEVICE FOR HYDRAULIC ACTUATOR

#505
20100115936
2010-05-13

System and method for pump-controlled cylinder cushioning

#506
20100107623
2010-05-06

Hydraulic system having an external pressure compensator

#507
20100107620
2010-05-06

Rotary flow control valve with energy recovery

#508
20100083650
2010-04-08

Hydraulic circuit for operating a tool

#509
20100043420
2010-02-25

Hydraulic system for construction equipment

#510
20100037604
2010-02-18

Fluid power distribution and control system

#511
20100037603
2010-02-18

Hydralic two-circuit system and interconnecting valve system

#512
20100036568
2010-02-11

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

#513
20100031649
2010-02-11

Hydraulic drive device for hydraulic excavator

#514
20100000209
2010-01-07

Hydraulic control system in working machine ( as amended

#515
20090308069
2009-12-17

Pump unit and working vehicle

#516
20090308068
2009-12-17

CONTROL CIRCUIT FOR CONSTRUCTION MACHINE

#517
20090308067
2009-12-17

Hydraulic drive

#518
20090308066
2009-12-17

Motor control device for construction machinery

#519
20090293468
2009-12-03

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

#520
20090288408
2009-11-26

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

#521
20090288406
2009-11-26

Drivetrain system having simultaneous displacement control

#522
20090241534
2009-10-01

ENERGY ACCUMULATOR UNIT

#523
20090229907
2009-09-17

Hydraulic drive vehicle

#524
20090229261
2009-09-17

Dual mode hydraulic circuit control and method

#525
20090217656
2009-09-03

Hydraulically driven industrial machine

#526
20090217653
2009-09-03

Control system for recovering swing motor kinetic energy

#527
20090210120
2009-08-20

Hydrostatic regenerative drive system

#528
20090199552
2009-08-13

Hydraulic working machine

#529
20090193801
2009-08-06

Hydraulic drive system

#530
20090173067
2009-07-09

Hydraulic control valve system with isolated pressure compensation

#531
20090165457
2009-07-02

Double redundancy electro hydrostatic actuator system

#532
20090165451
2009-07-02

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

#533
20090165450
2009-07-02

Hydraulic system

#534
20090163318
2009-06-25

Engine-load control device for working vehicle

#535
20090159143
2009-06-25

Fluid pressure circuit

#536
20090148310
2009-06-11

Working fluid cooling control system for construction machine

#537
20090145120
2009-06-11

METHOD AND CIRCUIT ARRANGEMENT OF THE SUPPLY OF PRESSUE MEDIUM TO AT LEAST TWO HYDRAULIC CONSUMERS

#538
20090139222
2009-06-04

System for storing, delivering and recovering energy

#539
20090133761
2009-05-28

Control valve unit with alternating stop

#540
20090101216
2009-04-23

Scavenging Valve for a Hydraulic Circuit

#541
20090100830
2009-04-23

Hydraulic drive system

#542
20090100829
2009-04-23

Hydraulic catapult drive

#543
20090094973
2009-04-16

Hydraulic circuit for heavy equipment

#544
20090077958
2009-03-26

Hydraulic circuit structure of work vehicle

#545
20090077839
2009-03-26

Backhoe hydraulic system

#546
20090077837
2009-03-26

Work machine

#547
20090071144
2009-03-19

Actuator control system implementing adaptive flow control

#548
20090064673
2009-03-12

Hydraulic control device

#549
20090057049
2009-03-05

Hydraulic traveling vehicle

#550
20090056324
2009-03-05

Hydraulic control device of construction machinery

#551
20090056322
2009-03-05

System and method for rapidly shaking an implement of a machine

#552
20090055056
2009-02-26

Swing drive system for construction machine

#553
20090036264
2009-02-05

Work machine

#554
20090031891
2009-02-05

Hydraulic circuit for rapid bucket shake out

#555
20090025997
2009-01-29

Hydraulic Drive Vehicle with Cooling System

#556
20090025947
2009-01-29

Method, arrangement and valve for controlling rock drilling

#557
20090025380
2009-01-29

Fixed/variable hybrid system

#558
20090007462
2009-01-08

Hydraulic system with thermal shock protection

#559
20090001300
2009-01-01

Directional control valve device and fluid pressure cylinder device

#560
20090000291
2009-01-01

Arrangement and method for delivering hydraulic fluid in a work vehicle

#561
20090000290
2009-01-01

Energy recovery system

#562
20080314038
2008-12-25

Swing drive device and work machine

#563
20080303336
2008-12-11

Dump truck

#564
20080295681
2008-12-04

Hydraulic system having an external pressure compensator

#565
20080295508
2008-12-04

Force feedback poppet valve having an integrated pressure compensator

#566
20080282691
2008-11-20

Pressure-compensating directional control valve

#567
20080276606
2008-11-13

Hydraulic drive system with exiting from pumping and motoring

#568
20080250783
2008-10-16

Flow continuity for multiple hydraulic circuits and associated method

#569
20080238187
2008-10-02

Hydrostatic drive system with variable charge pump

#570
20080223205
2008-09-18

Hydraulic drive apparatus

#571
20080223030
2008-09-18

Hydraulic driving device for operating machine

#572
20080223028
2008-09-18

Pump flow control of hydraulic circuit and associated method

#573
20080202110
2008-08-28

Hydraulic control arrangement

#574
20080155975
2008-07-03

Hydraulic system with energy recovery

#575
20080127642
2008-06-05

Hydraulic system with variable standby pressure

#576
20080104955
2008-05-08

Bidirectional hydraulic transformer

#577
20080087163
2008-04-17

Drift compensation control method for a machine

#578
20080072749
2008-03-27

Hydraulic valve assembly with a pressure compensated directional spool valve and a regeneration shunt valve

#579
20080072589
2008-03-27

Hydraulic drive

#580
20080053734
2008-03-06

Hydraulic drive vehicle

#581
20080053538
2008-03-06

Hydraulic circuit of option device for excavator

#582
20080053082
2008-03-06

Straight traveling hydraulic circuit

#583
20080047263
2008-02-28

Hydraulic circuit having a multifunction selector

#584
20080042087
2008-02-21

Electrohydraulic valve control circuit with magnetic hysteresis compensation

#585
20070278030
2007-12-06

Machine, in particular construction machine

#586
20070277405
2007-12-06

Control system for an electronic float feature for a loader

#587
20070272469
2007-11-29

Pump Unit and Working Vehicle

#588
20070261277
2007-11-15

Work machine

#589
20070251400
2007-11-01

Platen Press

#590
20070234718
2007-10-11

Hydraulic system and work machine comprising such a system

#591
20070205026
2007-09-06

Traveling system for heavy construction equipment

#592
20070169618
2007-07-26

Hydraulic drive

#593
20070169474
2007-07-26

Hydraulic control device for working machine

#594
20070151238
2007-07-05

Hydrostatic drive system

#595
20070151237
2007-07-05

Load sensing hydraulic system

#596
20070131107
2007-06-14

Flow valve and flow distributor comprising several flow valves

#597
20070130898
2007-06-14

Hydraulic system for a self-propelled harvesting machine

#598
20070125078
2007-06-07

Hydraulic pressure control device of construction machine

#599
20070119163
2007-05-31

Travel control device for hydraulically driven vehicle and hydraulically driven vehicle

#600
20070119162
2007-05-31

Hydrostatic drive system