ClassID:

143130

F04B49/08 - page 2 - CPC Classification

Classification description:

Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups  -  Regulating by delivery pressure

Recent Application in this class:
#301
20170130707
2017-05-11

Positive-displacement piston pump and associated delivery control method

#302
20170108882
2017-04-20

Pump control method and pressure-boosting device

#303
20170089328
2017-03-30

Fluid pressure producing method and fluid pressure producing device

#304
20170074258
2017-03-16

MAGNETICALLY DRIVEN MICROPUMP

#305
20170058877
2017-03-02

Hydrostatic Axial Piston Machine

#306
20170022788
2017-01-26

Safety indicator lights for hydraulic fracturing pumps

#307
20170015159
2017-01-19

Tire inflation system

#308
20170002804
2017-01-05

COMPRESSOR SYSTEM FOR A RAIL VEHICLE AND METHOD FOR OPERATING THE COMPRESSOR SYSTEM WITH SAFE EMERGENCY OPERATION

#309
20170002779
2017-01-05

High pressure pump

#310
20160377075
2016-12-29

Compressor system and method for operating the compressor system in dependence on the current situation of the rail vehicle

#311
20160319810
2016-11-03

GAS HANDLING SYSTEM AND METHOD FOR EFFICIENTLY MANAGING CHANGES IN GASEOUS CONDITIONS

#312
20160311420
2016-10-27

Compressor system and method for operating the compressor system in dependence on the operating state of the rail vehicle

#313
20160296686
2016-10-13

Fluid conveyance monitoring system in an extracorporeal blood treatment device

#314
20160290562
2016-10-06

Compressor unit and gas supply apparatus

#315
20160265530
2016-09-15

Air compressor system and method of operation

#316
20160265520
2016-09-15

ELECTRONIC CONTROL FOR A ROTARY FLUID DEVICE

#317
20160252086
2016-09-01

METHOD FOR OPERATING A PUMP UNIT, PUMP UNIT AND USE THEREOF

#318
20160252083
2016-09-01

Turbomachine which can be operated both as hydraulic motor and as pump

#319
20160245272
2016-08-25

Water pump control system

#320
20160237993
2016-08-18

Axial piston pump having a swash-plate type construction

#321
20160222950
2016-08-04

Pumping system

#322
20160201665
2016-07-14

Gas control device

#323
20160195083
2016-07-07

Electronic load sense control with electronic variable load sense relief, variable working margin, and electronic torque limiting

#324
20160195081
2016-07-07

Electronically controlled diaphragm pump

#325
20160178084
2016-06-23

Pressure-Setting Regulator

#326
20160177683
2016-06-23

Hydraulic oil well pumping system, and method for pumping hydrocarbon fluids from a wellbore

#327
20160167806
2016-06-16

Pump systems for controlling pressure loads

#328
20160167088
2016-06-16

Method for coating a pump component

#329
20160160825
2016-06-09

High-pressure fuel pump

#330
20160153431
2016-06-02

Hydraulic pump and piston for such a hydraulic pump

#331
20160146202
2016-05-26

OVERSHOOT REDUCTION ON PUMP CONTROLS

#332
20160108900
2016-04-21

Piston pump

#333
20160102657
2016-04-14

Piston pump for a hydraulic vehicle brake system

#334
20160101226
2016-04-14

Sensing negative pressure with a pressure transducer

#335
20160084724
2016-03-24

Hydraulic pressure control device

#336
20160076963
2016-03-17

Pressure indicator for air compressor

#337
20160076534
2016-03-17

Pen-type pressure indicator for air compressor

#338
20160045400
2016-02-18

Downstream flow detection system for flow control apparatus

#339
20160040662
2016-02-11

System and method for improved flow uniformity in a peristaltic pump mechanism

#340
20160010638
2016-01-14

Fluid flow normalizer

#341
20160010637
2016-01-14

Air Pump with Low Pressure Gauge Protective Device

#342
20160002889
2016-01-07

Engine-assist device and industrial machine

#343
20150367693
2015-12-24

TIRE INFLATION SYSTEM

#344
20150362240
2015-12-17

Methods and systems for controlling a chiller system having a centrifugal compressor with a variable speed drive

#345
20150361975
2015-12-17

Air compressor discharge system

#346
20150338027
2015-11-26

Slurry-transporting facility and slurry transportation control method

#347
20150337830
2015-11-26

Rotatable component overspeed protection method

#348
20150337813
2015-11-26

Pump volume control apparatus

#349
20150330385
2015-11-19

Fluid handling system for a particle processing apparatus

#350
20150322951
2015-11-12

Sump pump remote monitoring systems and methods

#351
20150316063
2015-11-05

Sump pump remote monitoring systems and methods

#352
20150316041
2015-11-05

DYNAMICALLY ADJUSTABLE IMPULSE DRIVING FLUID JETTING DEVICE

#353
20150285239
2015-10-08

Determination of a fluid loss of a piston pump based on evacuation time variation

#354
20150267697
2015-09-24

Variable pressure limiting for variable displacement pumps

#355
20150241883
2015-08-27

Multi-stream compressor management system and method

#356
20150240800
2015-08-27

Oil-well-pump driving hydraulic system

#357
20150240455
2015-08-27

Hydraulic driving system for construction machine

#358
20150238677
2015-08-27

Pressure detection device of liquid flow route

#359
20150159645
2015-06-11

Variable displacement swash plate type compressor

#360
20150159644
2015-06-11

Device and Method for Operating A Fuel Feed System and Fuel Feed System

#361
20150139838
2015-05-21

Atomizer

#362
20150139816
2015-05-21

HYDRAULIC FLUID PRESSURE CONTROL

#363
20150125313
2015-05-07

Pressure compensation control of a fixed displacement pump in a pumping and metering system and associated method

#364
20150093261
2015-04-02

NOZZLE INSERT FOR BOOSTING PUMP INLET PRESSURE

#365
20150089999
2015-04-02

Pulsation suppressing air flow system for an air sampling instrument

#366
20150078920
2015-03-19

Air compressor

#367
20150075634
2015-03-19

Hydromechanical pressure compensation control of a variable displacement pump in a centrifugal pumping and metering system and associated method

#368
20150050165
2015-02-19

Control unit for hydraulic variable displacement pumps and variable displacement pump with a control unit

#369
20150047501
2015-02-19

Pump having an automated gas removal and fluid recovery system and method using a gas removal reservoir having an internal partition

#370
20150020776
2015-01-22

Fuel delivery system containing high pressure pump with isolation valves

#371
20150017019
2015-01-15

Mobile hydraulic generator and control method thereof

#372
20150010408
2015-01-08

Motor control apparatus and electric pump unit

#373
20140371960
2014-12-18

Device for controlling fail-safe of hybrid vehicle and method thereof

#374
20140356197
2014-12-04

Remote Drag Hose Pump Control System

#375
20140356196
2014-12-04

Natural gas compressor

#376
20140328700
2014-11-06

Swash plate pump having control pins in series

#377
20140322045
2014-10-30

Engine overload prevention using a speed differential operated relief valve

#378
20140322032
2014-10-30

System and method for pressure compensation in a pump

#379
20140318235
2014-10-30

Method and system for monitoring the operational state of a pump

#380
20140309796
2014-10-16

Water booster control system and method

#381
20140294618
2014-10-02

Hydraulic pressure supply system of automatic transmission

#382
20140294610
2014-10-02

Peristaltic pump for pumping a liquid and method for operating a peristaltic pump

#383
20140294606
2014-10-02

Automatic Fuel Additive Controller and Dispenser

#384
20140271253
2014-09-18

Fire Pump Controller Configured to Control Pressure Maintenance in Sprinkler Systems

#385
20140260969
2014-09-18

Pump with water management

#386
20140255215
2014-09-11

Intelligent pump monitoring and control system

#387
20140244087
2014-08-28

Oil pump controlling system of hybrid vehicle and method thereof

#388
20140199182
2014-07-17

RECIPROCATING WATER PUMP

#389
20140186195
2014-07-03

Tire inflation system

#390
20140186193
2014-07-03

Air compressor

#391
20140119947
2014-05-01

Sump pump remote monitoring systems and methods

#392
20140119946
2014-05-01

Battery backup sump pump systems and methods

#393
20140109566
2014-04-24

Methods and devices for optimizing heat transfer within a compression and/or expansion device

#394
20140103233
2014-04-17

Hydraulic valve arrangement and hydraulic machine arrangement having a valve arrangement of this kind

#395
20140093402
2014-04-03

Passive pressure regulation mechanism

#396
20140072458
2014-03-13

Variable displacement oil pump

#397
20140017092
2014-01-16

Pump noise reduction and cancellation

#398
20140010680
2014-01-09

Energy extraction system

#399
20140003969
2014-01-02

Energy extraction system

#400
20140000756
2014-01-02

Passive pressure regulation mechanism

#401
20140000755
2014-01-02

Tire inflation system

#402
20130343911
2013-12-26

Dual redundancy in fire pump controllers

#403
20130318971
2013-12-05

Power source apparatus and hybrid construction machine equipped with same

#404
20130318957
2013-12-05

Fluid control system for work vehicle

#405
20130291952
2013-11-07

System and method to detect accumulator loss of precharge

#406
20130287598
2013-10-31

Gas compression system

#407
20130287592
2013-10-31

Compressed gas supply unit

#408
20130280112
2013-10-24

High-pressure fuel pump

#409
20130266457
2013-10-10

SQUARE SHOULDER METERING ROD

#410
20130259707
2013-10-03

System and method for monitoring and control of cavitation in positive displacement pumps

#411
20130253711
2013-09-26

Complete integrated fireground control system and method

#412
20130251553
2013-09-26

Tire inflation system

#413
20130251552
2013-09-26

Energy extraction system

#414
20130239796
2013-09-19

Hydrostatic axial piston machine

#415
20130224045
2013-08-29

Valve arrangement, connection plate for a hydrostatic piston machine, and hydrostatic piston machine

#416
20130216357
2013-08-22

Feed water pump control device

#417
20130209284
2013-08-15

Hydraulic dual axial piston machine

#418
20130205987
2013-08-15

Hydraulic axial piston machine

#419
20130197700
2013-08-01

Multi-priority pump control unit

#420
20130195699
2013-08-01

Connection plate for a hydrostatic piston machine

#421
20130189122
2013-07-25

Device and system for monitoring a pneumatically actuated alternating linear displacement pump

#422
20130160873
2013-06-27

Pressure-regulating arrangement with a pressure-regulating valve and hydraulic circuit therefor

#423
20130160468
2013-06-27

Cryopump system, cryogenic system, and apparatus and method of controlling compressor unit

#424
20130149173
2013-06-13

Multistage compressors for pet bottle blowing processes

#425
20130121852
2013-05-16

System for controlling hydraulic pump in construction machine

#426
20130104631
2013-05-02

Pump for liquid chromatograph, and liquid chromatograph

#427
20130064683
2013-03-14

Liquid feed pump and circulation pump with detection units to detect operating states of the pumps

#428
20130048096
2013-02-28

System comprising a pump, an injector and a regulator, with control signals to the pump which are based on calculated hose rigidities

#429
20130014838
2013-01-17

Relief device for oil pump

#430
20130004340
2013-01-03

System and method for monitoring operation of a pump

#431
20120325080
2012-12-27

Gas boosters

#432
20120304669
2012-12-06

Cryopump control apparatus, cryopump system, and method for evaluating vacuum retention of cryopumps

#433
20120302945
2012-11-29

METHOD AND APPARATUS FOR THE DETERMINATION OF GAS IN A FLUID PUMPED THROUGH A PUMPING DEVICE

#434
20120247094
2012-10-04

Hydraulic pump control device for construction machine

#435
20120244023
2012-09-27

Hydraulic pump assembly

#436
20120230846
2012-09-13

Systems and methods of controlling pressure maintenance pumps and data logging pump operations

#437
20120227824
2012-09-13

Methods And Apparatus For Gas Compression With Gas Flow Rate And Pressure Regulation

#438
20120227391
2012-09-13

Device and method for controlling hydraulic pump of construction machinery

#439
20120216886
2012-08-30

Primary piston correction during transfer

#440
20120163996
2012-06-28

Hydraulic drive device of hydraulic operating machine

#441
20120141297
2012-06-07

Oil pump controlling system of hybrid vehicle and method thereof

#442
20120134849
2012-05-31

Character parameters obtaining method for displacement control mechanism of hydraulic pump and detecting device for carrying out the method

#443
20120132287
2012-05-31

Pump for conveying a medium and lubricating system containing the same

#444
20120128533
2012-05-24

Liquid supply device using check valve and reactive liquid chromatography system

#445
20120097273
2012-04-26

Fuel supply system

#446
20120097022
2012-04-26

PUMP UNIT

#447
20120097021
2012-04-26

Bootstrap accumulator system with telescoping actuator cylinder

#448
20120070311
2012-03-22

System and method for pressure compensation in a pump

#449
20120039723
2012-02-16

CONTROLLER FOR A LIQUID SUPPLY PUMP

#450
20110305585
2011-12-15

Lubricant system

#451
20110286861
2011-11-24

Air compressor system and method of operation

#452
20110286860
2011-11-24

Method for Controlling a Compressor Installation

#453
20110274566
2011-11-10

Magnetically driven micropump

#454
20110273288
2011-11-10

Pump control unit

#455
20110271829
2011-11-10

Rotary hydraulic machine and controls

#456
20110263021
2011-10-27

Method and device for industrial biolayer cultivation

#457
20110258999
2011-10-27

Methods and devices for optimizing heat transfer within a compression and/or expansion device

#458
20110255995
2011-10-20

Air compressor system and method of operation

#459
20110255994
2011-10-20

Air compressor system and method of operation

#460
20110251724
2011-10-13

SERVER AND METHOD FOR DETECTING WORK STATUSES OF AIR COMPRESSORS

#461
20110240147
2011-10-06

Fluid flow control apparatus for hydraulic pump of construction machine

#462
20110236932
2011-09-29

BIOPHARMACEUTICAL PLANT IN A COLUMN

#463
20110223581
2011-09-15

ELECTRONICALLY CONTROLLED DIAPHRAGM PUMP

#464
20110200450
2011-08-18

Apparatus and method for tuning pump speed

#465
20110182752
2011-07-28

METHOD FOR CONTROLLING THE FEED RATE OF A FEED PUMP

#466
20110158830
2011-06-30

Negative control type hydraulic system

#467
20110129361
2011-06-02

Compressor capacity control method and device for controlling the capacity of a compressor

#468
20110098864
2011-04-28

System and method for monitoring operation of a pump

#469
20110064591
2011-03-17

Comprehensive control system for mobile pumping apparatus

#470
20110061593
2011-03-17

Dual mode pump control

#471
20110042282
2011-02-24

Pressure-controlled liquid supply system and pump control device for use therein

#472
20110011465
2011-01-20

Controlling mechanism for activation of an air pump to be implemented in an inflatable object

#473
20100329892
2010-12-30

Hydraulic drive and control system for pumps using a charge pump

#474
20100322791
2010-12-23

Hydraulic system with supplement pump

#475
20100310387
2010-12-09

Adjustable unloader valve

#476
20100310382
2010-12-09

Method of controlling a pump and motor

#477
20100293938
2010-11-25

Hydraulic fluid pump of a vehicle brake system having a delivery means

#478
20100290924
2010-11-18

Nozzle insert for boosting pump inlet pressure

#479
20100278659
2010-11-04

Pressure-controlling appliance for an inflatable product

#480
20100275678
2010-11-04

Primary piston correction during transfer

#481
20100186402
2010-07-29

Pump torque control system for hydraulic construction machine

#482
20100154398
2010-06-24

Fluid pressure unit

#483
20100147256
2010-06-17

Abnormality detecting device for hydraulic system

#484
20100132544
2010-06-03

Axial piston machine having a return device

#485
20100080713
2010-04-01

System and method of disabling an HVAC compressor based on a low pressure cut out

#486
20100080712
2010-04-01

System and method of disabling an HVAC compressor based on a high pressure cut out

#487
20100047083
2010-02-25

High pressure pump of variable displacement

#488
20100014987
2010-01-21

Control device for a power unit

#489
20090304528
2009-12-10

Pump equipment

#490
20090196767
2009-08-06

Service pack variable displacement pump

#491
20090126361
2009-05-21

Pump torque controller of hydraulic working machine

#492
20090082921
2009-03-26

Level control system for a motor vehicle

#493
20090050219
2009-02-26

FLUID COMPRESSOR AND CONTROL DEVICE FOR THE SAME

#494
20080279699
2008-11-13

Controller for a variable displacement feed pump

#495
20080271793
2008-11-06

Load-Pressure-Operated Flow Rate Regulator with Vibration Damping

#496
20080236157
2008-10-02

Engine lag down suppressing device of construction machinery

#497
20070284202
2007-12-13

Method and apparatus for measuring pressure drop of magneto-rheological suspensions in microchannels

#498
20070243075
2007-10-18

Carrying system and processing equipment

#499
20070231161
2007-10-04

Pump with Selectable Outlet Pressure

#500
20070204606
2007-09-06

Hydraulic control apparatus of working machine

#501
20070177983
2007-08-02

AIRFLOW COMPRESSOR CONTROL SYSTEM AND METHOD

#502
20070177982
2007-08-02

Condition-based and predictive maintenance of compressor systems

#503
20070128047
2007-06-07

System and method for monitoring operation of a pump

#504
20070128046
2007-06-07

System and method for control of fluid pressure

#505
20070125797
2007-06-07

System and method for pressure compensation in a pump

#506
20070122291
2007-05-31

Liquid chemical supply system having a plurality of pressure detectors

#507
20070110603
2007-05-17

High-pressure fuel pump

#508
20070028608
2007-02-08

Rotary hydraulic machine and controls

#509
20060254269
2006-11-16

Power regulating device

#510
20060251526
2006-11-09

Axial piston machine having a fixable slide block on the swash plate

#511
20060207248
2006-09-21

Hydraulic circuit of construction machinery

#512
20060198736
2006-09-07

Pump control system for variable displacement pump

#513
20060110258
2006-05-25

Air compressor

#514
20060043787
2006-03-02

Regulator device and a valve unit for a hydraulic pump

#515
20050226738
2005-10-13

Tree feller power management

#516
20050180855
2005-08-18

Pump unit with multiple operation modes

#517
20050175468
2005-08-11

Work-space pressure regulator

#518
20050172621
2005-08-11

Control valve supply for rotary hydraulic machine

#519
20050160727
2005-07-28

Method and device for controlling pump torque for hydraulic construction machine

#520
20050129530
2005-06-16

Pump compensator

#521
20050118036
2005-06-02

Regulatory device comprising a threshold valve control valve

#522
20050060995
2005-03-24

Automatic remote pressure compensation in an open circuit pump

#523
20050029484
2005-02-10

Valve block for a control device, particularly for a hydrostatic machine

#524
20050025634
2005-02-03

Controlling pressure in a process chamber by variying pump speed and a regulator valve, and by injecting inert gas

#525
20050016587
2005-01-27

Combination fitting

#526
20050008498
2005-01-13

Pump control override for tandem pumps

#527
20050001567
2005-01-06

Actuator driving device of working machine

#528
17104594
2021-11-16

Digital pressure switch systems and methods

#529
16878852
2022-12-27

Pressure control in PAP systems

#530
16408392
2020-11-10

Portable inflatable apparatus

#531
15887817
2020-11-03

Hydraulic systems with variable speed drives

#532
15433734
2018-07-10

Intake pressure control system

#533
15377193
2017-07-18

Subsea fluid pressure regulation systems and methods