ClassID:

146226

F15B2211/20576 - page 2 - CPC Classification

Classification description:

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

Recent Application in this class:
#301
20160228978
2016-08-11

Pressure welding device and pressure welding method using an advance drive designed as an electrohydraulic direct drive

#302
20160222991
2016-08-04

Hydraulic device

#303
20160222990
2016-08-04

Hydraulic drive system

#304
20160215797
2016-07-28

Self priming hydraulic pump and circuit

#305
20160215481
2016-07-28

Control system for hybrid construction machine

#306
20160208831
2016-07-21

System for estimating a sensor output

#307
20160208459
2016-07-21

Work machine driving device

#308
20160186785
2016-06-30

Hydraulic energy recovery system

#309
20160177539
2016-06-23

Working machine

#310
20160167759
2016-06-16

Pump device and tilt and trim device for outboard machine

#311
20160138619
2016-05-19

Conserve Energy Through Independent Pump Control in a Hydraulic System

#312
20160138240
2016-05-19

Construction machine control system, construction machine, and construction machine control method

#313
20160131163
2016-05-12

Hydrostatic Drive For Variable Speed Operation of Rotational Equipment

#314
20160131130
2016-05-12

Power unit of hydraulic pumping unit and corresponding hydraulic pumping unit

#315
20160123354
2016-05-05

Shovel and method of controlling shovel

#316
20160116053
2016-04-28

Pressure and flow compensated hydraulic system

#317
20160115974
2016-04-28

Hydraulic drive system for construction machine

#318
20160108938
2016-04-21

Hydraulic system of a vehicle

#319
20160108937
2016-04-21

PRESSURE MAINTAINING APPARATUS, MACHINE TOOL, AND METHOD OF RUNNING PRESSURE MAINTAINING APPARATUS IN MACHINE TOOL

#320
20160102687
2016-04-14

Hydraulic unit

#321
20160102686
2016-04-14

Hydraulic system for construction equipment

#322
20160097404
2016-04-07

Bidirectional output mixed hydraulic power system

#323
20160084279
2016-03-24

Hydraulic drive with rapid stroke and load stroke

#324
20160084278
2016-03-24

Hydraulic drive with rapid stroke and load stroke

#325
20160084276
2016-03-24

Hydraulic drive with rapid stroke and load stroke

#326
20160052612
2016-02-25

Apparatus and method for transferring inflammable material on marine structure

#327
20160047398
2016-02-18

Apparatus for controlling hydraulic pump for construction machine

#328
20160040689
2016-02-11

Device and method for controlling hydraulic pump in construction machine

#329
20160032947
2016-02-04

Construction machine

#330
20160032945
2016-02-04

Hydraulic system for construction machine

#331
20160032565
2016-02-04

Driving device for work machine

#332
20160025113
2016-01-28

Apparatus for driving work machine

#333
20160025111
2016-01-28

System and method for energy storage and retrieval

#334
20160024749
2016-01-28

Hydraulic shovel

#335
20160023699
2016-01-28

Predictively adjustable hydraulic pressure rails

#336
20160017898
2016-01-21

MERGING CIRCUIT OF HYDRAULIC APPARATUS

#337
20160010669
2016-01-14

Hydraulic device and prime mover device

#338
20160010663
2016-01-14

Hydraulic hybrid swing drive system for excavators

#339
20160002889
2016-01-07

Engine-assist device and industrial machine

#340
20150377258
2015-12-31

Hydraulic drive system for construction machine

#341
20150376871
2015-12-31

Apparatus and method for controlling oil hydraulic pump for excavator

#342
20150376870
2015-12-31

Hydraulic apparatus based on confluence control mode

#343
20150368880
2015-12-24

Hydraulic construction machinery

#344
20150368879
2015-12-24

Combined Hydraulic Implement and Propulsion Circuit with Hybrid Energy Capture and Reuse

#345
20150360910
2015-12-17

Auxiliary pumping unit

#346
20150354167
2015-12-10

Hydraulic control device and construction machine with same

#347
20150330416
2015-11-19

Fluid pressure control device for power shovel

#348
20150330413
2015-11-19

Hydraulic circuit for construction machine

#349
20150330059
2015-11-19

Liquid-pressure drive system and construction machine including same

#350
20150299987
2015-10-22

Construction machine

#351
20150292526
2015-10-15

Hydraulic driving system

#352
20150292183
2015-10-15

Hydraulic system for work machine

#353
20150288125
2015-10-08

HYDRAULICALLY ACTUATED TOOL AND VALVE ASSEMBLY THEREFOR

#354
20150285274
2015-10-08

Fluid pressure control device for power shovel

#355
20150275939
2015-10-01

Hydraulic circuit for construction machine

#356
20150275932
2015-10-01

Twin priority valve

#357
20150275468
2015-10-01

Hydraulic system for working machine

#358
20150275445
2015-10-01

Vehicle for line marking

#359
20150267589
2015-09-24

Multi-step regeneration device of DPF and regeneration method therefor

#360
20150260205
2015-09-17

Void protection system

#361
20150247305
2015-09-03

Construction machinery

#362
20150226234
2015-08-13

Hydraulic actuator system

#363
20150211501
2015-07-30

Tilting angle control device

#364
20150204359
2015-07-23

Construction machine

#365
20150204054
2015-07-23

Hydraulic drive system for construction machine

#366
20150198183
2015-07-16

Failsafe pilot supply selector valve

#367
20150184681
2015-07-02

Actuator

#368
20150184680
2015-07-02

Torque limit control

#369
20150176617
2015-06-25

Energy recapture system for hydraulic elevators

#370
20150176611
2015-06-25

Load sensing electric-proportional multi-way valve

#371
20150176609
2015-06-25

Control system for hybrid construction machine

#372
20150159679
2015-06-11

Pulse controlled linear actuator

#373
20150159678
2015-06-11

Flow control valve for construction machinery

#374
20150152890
2015-06-04

Construction machine and controller

#375
20150152842
2015-06-04

Wind energy system with a pitch adjustment system

#376
20150135699
2015-05-21

Hydraulic valve arrangement with control/regulating function

#377
20150135698
2015-05-21

Hydraulic valve arrangement with control/regulating function

#378
20150135697
2015-05-21

Driving device for work machine and work machine equipped therewith

#379
20150135693
2015-05-21

Engine control apparatus for work machine and engine control method thereof

#380
20150128583
2015-05-14

Travel control valve

#381
20150122564
2015-05-07

Hydraulic circuit for vehicle, vehicle equipped with same, and control method therefor

#382
20150121860
2015-05-07

Hydraulic drive circuit

#383
20150113971
2015-04-30

Hydraulic control system

#384
20150113970
2015-04-30

Hydraulic system for construction machinery

#385
20150107712
2015-04-23

Multiple valve device

#386
20150107236
2015-04-23

Hydraulic closed circuit system

#387
20150096435
2015-04-09

Hydraulic devices and methods of actuating same

#388
20150096291
2015-04-09

Fluid pressure control device

#389
20150096290
2015-04-09

Hydraulic system

#390
20150096288
2015-04-09

Systems and methods for heat balance and transport for aircraft hydraulic systems

#391
20150089935
2015-04-02

Control valve apparatus of power shovel

#392
20150066313
2015-03-05

Control device and construction machine provided therewith

#393
20150059332
2015-03-05

Hydraulic circuit for construction machine

#394
20150059331
2015-03-05

Hydraulic circuit for construction machine and control device therefor

#395
20150059328
2015-03-05

FLUID PRESSURE DRIVE UNIT

#396
20150047335
2015-02-19

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

#397
20150044007
2015-02-12

Hydraulic control device and construction machine provided with same

#398
20150040552
2015-02-12

Hydraulic circuit for construction machine and control device for same

#399
20150033727
2015-02-05

Hybrid construction machine

#400
20150033726
2015-02-05

Control system for a hybrid construction machine

#401
20150013320
2015-01-15

Hydraulic drive system

#402
20150013319
2015-01-15

Hydraulic load-sensing control arrangement

#403
20140366518
2014-12-18

Hydraulic system of construction machine

#404
20140366517
2014-12-18

System for reducing fuel consumption in excavator

#405
20140350731
2014-11-27

Driver self-tuning method using electro-hydraulic actuator system

#406
20140345265
2014-11-27

Hydraulic drive system

#407
20140325971
2014-11-06

Hydromechanical power management of fixed displacement boost pumps

#408
20140322045
2014-10-30

Engine overload prevention using a speed differential operated relief valve

#409
20140283510
2014-09-25

Hydraulic drive system

#410
20140271066
2014-09-18

Independent load sensing for a vehicle hydraulic system

#411
20140260232
2014-09-18

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

#412
20140212305
2014-07-31

Drive train of a vehicle

#413
20140182279
2014-07-03

Shovel and method of controlling shovel

#414
20140151501
2014-06-05

Electro hydrostatic actuator system for retracting/extending landing gear

#415
20140144130
2014-05-29

Arrangement for charging an accumulator

#416
20140130487
2014-05-15

Hydraulic drive system

#417
20140123847
2014-05-08

Hydraulic excavator

#418
20140123639
2014-05-08

Hydraulic drive system

#419
20140119867
2014-05-01

Energy recovery system having integrated boom/swing circuits

#420
20140102289
2014-04-17

Shovel and method for controlling shovel

#421
20140096581
2014-04-10

Extrusion press

#422
20140060025
2014-03-06

Hydraulic control system having electronic flow limiting

#423
20140060020
2014-03-06

Hydraulic control system having over-pressure protection

#424
20140033689
2014-02-06

METERLESS HYDRAULIC SYSTEM HAVING FORCE MODULATION

#425
20140026550
2014-01-30

Hydraulic energy recovery system

#426
20140023523
2014-01-23

Closed loop drive circuit with external brake assist

#427
20140013736
2014-01-16

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

#428
20140007962
2014-01-09

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

#429
20140007942
2014-01-09

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

#430
20140004998
2014-01-02

Hydraulic launch assist system

#431
20140004986
2014-01-02

ELECTRIC MOTOR/GENERATOR POWER TRANSFER UNIT

#432
20140000737
2014-01-02

Zonal hydraulic systems and methods

#433
20130336802
2013-12-19

Case flow augmenting arrangement for cooling variable speed electric motor-pumps

#434
20130334480
2013-12-19

Landing gear control system for trailers

#435
20130333367
2013-12-19

Hydraulic circuit for pipe layer

#436
20130318955
2013-12-05

Electro-hydraulic system for recovering and reusing potential energy

#437
20130318952
2013-12-05

Method for controlling a hydraulic pump of a wheel loader

#438
20130312403
2013-11-28

Hydraulic system for construction machine having electronic hydraulic pump

#439
20130289835
2013-10-31

Drive control system for construction machinery

#440
20130283773
2013-10-31

System and method for identifying impending hydraulic pump failure

#441
20130255244
2013-10-03

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

#442
20130251490
2013-09-26

Working machine with variable displacement hydraulic pump

#443
20130152565
2013-06-20

HYDRAULIC SYSTEM HAVING ENERGY RECOVERY

#444
20130139909
2013-06-06

Hydraulic system

#445
20130129459
2013-05-23

Construction machine having hydraulic circuit

#446
20130115035
2013-05-09

Construction machine with hydraulic circuit

#447
20130115014
2013-05-09

Hydrostatic drive for a machine

#448
20130098458
2013-04-25

HYDRAULIC SYSTEM HAVING MULTIPLE CLOSED-LOOP CIRCUITS

#449
20130098024
2013-04-25

Hydraulic system

#450
20130098023
2013-04-25

Energy recovery control circuit and work machine

#451
20130098020
2013-04-25

Meterless hydraulic system having flow sharing and combining functionality

#452
20130098019
2013-04-25

Meterless hydraulic system having flow sharing and combining functionality

#453
20130098018
2013-04-25

Hydraulic system

#454
20130098017
2013-04-25

Hydraulic system

#455
20130098016
2013-04-25

Meterless hydraulic system having flow sharing and combining functionality

#456
20130098013
2013-04-25

CLOSED-LOOP SYSTEM HAVING MULTI-CIRCUIT FLOW SHARING

#457
20130098012
2013-04-25

METERLESS HYDRAULIC SYSTEM HAVING MULTI-CIRCUIT RECUPERATION

#458
20130098011
2013-04-25

HYDRAULIC SYSTEM HAVING MULTIPLE CLOSED-LOOP CIRCUITS

#459
20130098010
2013-04-25

Closed-loop hydraulic system having priority-based sharing

#460
20130074486
2013-03-28

Multi-pump system with pump-flow diversion

#461
20130055704
2013-03-07

Apparatus for controlling raise speed of working machine for heavy equipment

#462
20130032233
2013-02-07

Hydraulic pressure-regulating valve for construction equipment

#463
20130025335
2013-01-31

Apparatus and method for the electrohydraulic control of parallelism in a bending machine for working metal products

#464
20130000478
2013-01-03

Hydraulic pressure control apparatus for construction machine

#465
20130000293
2013-01-03

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

#466
20130000292
2013-01-03

Electronic high hydraulic pressure cutoff to improve system efficiency

#467
20120324877
2012-12-27

System for driving a boom of a hybrid excavator and a control method thereof

#468
20120312007
2012-12-13

Control system for hybrid construction machine

#469
20120310492
2012-12-06

Hydraulic work machine

#470
20120304630
2012-12-06

Control system for construction machine

#471
20120285157
2012-11-15

Pump control unit for hydraulic system

#472
20120261010
2012-10-18

Hydraulic system for construction machinery

#473
20120260644
2012-10-18

Engine augmentation of hydraulic control system

#474
20120233998
2012-09-20

Control system for hybrid construction machine

#475
20120233997
2012-09-20

Regenerative hydraulic systems and methods of use

#476
20120233995
2012-09-20

Hybrid operating machine

#477
20120233993
2012-09-20

Method for controlling a hydraulic system of a working machine

#478
20120227391
2012-09-13

Device and method for controlling hydraulic pump of construction machinery

#479
20120220426
2012-08-30

Charge bypass system for engine start

#480
20120216871
2012-08-30

Split valve pump controlled hydraulic system

#481
20120204776
2012-08-16

Hydraulic system for a watercraft

#482
20120198831
2012-08-09

Hydraulic system for working machine

#483
20120198827
2012-08-09

Hydraulic drive system

#484
20120185141
2012-07-19

Work vehicle and work vehicle control method

#485
20120163949
2012-06-28

Hydraulic drive device for hydraulic working machine

#486
20120151904
2012-06-21

Hydraulic control system having energy recovery

#487
20120093624
2012-04-19

Work machine and control method for work machines

#488
20120073669
2012-03-29

Compressed air supply system for a compressed air consumer circuit

#489
20120067443
2012-03-22

Hydraulic system for working machine

#490
20120055149
2012-03-08

SEMI-CLOSED HYDRAULIC SYSTEMS

#491
20120055050
2012-03-08

Multi-function wheel loader linkage control with optimized power management

#492
20120048409
2012-03-01

Hydraulic circuit for working machine

#493
20120031087
2012-02-09

HYDRAULIC CIRCUIT WITH MULTIPLE PUMPS

#494
20120024531
2012-02-02

Autochoke system

#495
20120023924
2012-02-02

VARIABLE HYDRAULIC SYSTEM

#496
20120001021
2012-01-05

Aircraft actuator hydraulic system

#497
20110308242
2011-12-22

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

#498
20110302911
2011-12-15

Methods and systems for subsea electric piezopumps

#499
20110289908
2011-12-01

Hydraulic system having implement and steering flow sharing

#500
20110283691
2011-11-24

Multiple fluid pump combination circuit

#501
20110270498
2011-11-03

Control device for hybrid construction machine

#502
20110268588
2011-11-03

CONTROLLER OF HYBRID CONSTRUCTION MACHINE

#503
20110266390
2011-11-03

Hydraulic apparatus for aircraft actuators

#504
20110265467
2011-11-03

Control device for hybrid construction machine

#505
20110240146
2011-10-06

Control device for hybrid construction machine

#506
20110192155
2011-08-11

Hydraulic drive device for hydraulic excavator

#507
20110179783
2011-07-28

Device to actively control the vibrations of an articulated arm to pump concrete

#508
20110168283
2011-07-14

Hydraulic Circuit For Working Machine

#509
20110100717
2011-05-05

Absorber-replenisher in a hydrostatic circuit

#510
20110094280
2011-04-28

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

#511
20110072810
2011-03-31

Controller of hybrid construction machine

#512
20110061375
2011-03-17

Hydraulic drive system

#513
20110056194
2011-03-10

HYDRAULIC SYSTEM FOR HEAVY EQUIPMENT

#514
20110056192
2011-03-10

TECHNIQUE FOR CONTROLLING PUMPS IN A HYDRAULIC SYSTEM

#515
20110010047
2011-01-13

Controller of hybrid construction machine

#516
20110000202
2011-01-06

Active hydraulic regeneration for motion control

#517
20100319338
2010-12-23

Hydraulic control system for excavator

#518
20100313557
2010-12-16

Hydraulic system for construction equipment having float function

#519
20100300820
2010-12-02

Torsional Vibration Damping System for the Drive Train of a Vehicle

#520
20100293936
2010-11-25

Hydraulic system with improved complex operation

#521
20100281859
2010-11-11

Oil pressure system and valve assembly used in oil pressure system

#522
20100276023
2010-11-04

Valve system for drilling systems

#523
20100236233
2010-09-23

Work machine

#524
20100236232
2010-09-23

Drive for a Hydraulic Excavator

#525
20100218493
2010-09-02

Torque control apparatus for construction machine three-pump system

#526
20100205955
2010-08-19

Hydraulic circuit of winch for crane

#527
20100119393
2010-05-13

HYDRAULIC PUMP ASSEMBLY

#528
20100089045
2010-04-15

Hydraulic control circuit for construction machine

#529
20100071358
2010-03-25

Hydraulic system of work machine

#530
20100043420
2010-02-25

Hydraulic system for construction equipment

#531
20100037604
2010-02-18

Fluid power distribution and control system

#532
20100037603
2010-02-18

Hydralic two-circuit system and interconnecting valve system

#533
20100036568
2010-02-11

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

#534
20100000211
2010-01-07

HYDRAULIC CONTROL CIRCUIT FOR EXCAVATOR

#535
20100000209
2010-01-07

Hydraulic control system in working machine ( as amended

#536
20090308069
2009-12-17

Pump unit and working vehicle

#537
20090304528
2009-12-10

Pump equipment

#538
20090297370
2009-12-03

Combined power pack unit

#539
20090293468
2009-12-03

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

#540
20090288408
2009-11-26

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

#541
20090229694
2009-09-17

Hydraulic actuator with floating pistons

#542
20090199552
2009-08-13

Hydraulic working machine

#543
20090193801
2009-08-06

Hydraulic drive system

#544
20090170657
2009-07-02

Hydraulic supply system for a hydraulically actuated automatic transmission

#545
20090165457
2009-07-02

Double redundancy electro hydrostatic actuator system

#546
20090165450
2009-07-02

Hydraulic system

#547
20090159143
2009-06-25

Fluid pressure circuit

#548
20090158728
2009-06-25

Smart flow sharing system

#549
20090148310
2009-06-11

Working fluid cooling control system for construction machine

#550
20090145123
2009-06-11

Hydraulic circuit having holding valve of external pilot pressure operation type

#551
20090126361
2009-05-21

Pump torque controller of hydraulic working machine

#552
20090120278
2009-05-14

ELECTROHYDROSTATIC ACTUATOR INCLUDING A FOUR-PORT, DUAL DISPLACEMENT HYDRAULIC PUMP

#553
20090113887
2009-05-07

Hydraulic Drive Device

#554
20090107568
2009-04-30

Apparatus operating hydraulic actuator for valve

#555
20090097986
2009-04-16

OIL PRESSURE UNIT AND SPEED CONTROL METHOD OF MOTOR IN OIL PRESSURE UNIT

#556
20090094973
2009-04-16

Hydraulic circuit for heavy equipment

#557
20090077958
2009-03-26

Hydraulic circuit structure of work vehicle

#558
20090077839
2009-03-26

Backhoe hydraulic system

#559
20090077837
2009-03-26

Work machine

#560
20090071218
2009-03-19

Die cushion apparatus of press machine

#561
20090071141
2009-03-19

Hydraulic circuit for heavy equipment

#562
20090057049
2009-03-05

Hydraulic traveling vehicle

#563
20090056324
2009-03-05

Hydraulic control device of construction machinery

#564
20090036264
2009-02-05

Work machine

#565
20090025947
2009-01-29

Method, arrangement and valve for controlling rock drilling

#566
20090007462
2009-01-08

Hydraulic system with thermal shock protection

#567
20090000291
2009-01-01

Arrangement and method for delivering hydraulic fluid in a work vehicle

#568
20080314038
2008-12-25

Swing drive device and work machine

#569
20080303336
2008-12-11

Dump truck

#570
20080296083
2008-12-04

Steerable series two speed motor configuration

#571
20080271941
2008-11-06

Dual hydrostatic vehicle steering system

#572
20080250783
2008-10-16

Flow continuity for multiple hydraulic circuits and associated method

#573
20080236932
2008-10-02

Actuator control system

#574
20080236154
2008-10-02

Hydraulic circuit for construction equipment

#575
20080229738
2008-09-25

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

#576
20080223205
2008-09-18

Hydraulic drive apparatus

#577
20080223027
2008-09-18

Hydraulic circuit for construction machine

#578
20080223026
2008-09-18

Hydraulic power management system

#579
20080210485
2008-09-04

Control system for frame-steering of a vehicle and method for controlling two steering cylinders in a frame-steered vehicle

#580
20080203234
2008-08-28

Trim actuator actuating system for a hydraulically actuatable trimmable horizontal stabilizer actuator

#581
20080164115
2008-07-10

Hydraulic circuit for controlling a hybrid clutch and an automatic transmission of a motor vehicle

#582
20080152513
2008-06-26

HYDRAULIC CIRCUIT ARRANGEMENT WITH RECOVERY OF ENERGY

#583
20080121101
2008-05-29

Double check valve having floating function

#584
20080112818
2008-05-15

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Access method and apparatus that limit motion according to load and position