ClassID:

142594

F04B1/06 - CPC Classification

Classification description:

Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement Control

Sub-classes:
Recent Application in this class:
#1
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DUAL PUMP VFD CONTROLLED MOTOR ELECTRIC FRACTURING SYSTEM

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HYDRAULIC CIRCUIT ARRANGEMENT AND CONTROL SYSTEM FOR GANGED ELECTRONICALLY-COMMUTATED PUMPS

#3
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MULTIPLE GENERATOR MOBILE ELECTRIC POWERED FRACTURING SYSTEM

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CYLINDER ON DEMAND HYDRAULIC DEVICE

#5
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ELECTRONICALLY COMMUTATED HYDRAULIC MACHINE AND OPERATING METHOD TO REDUCE GENERATION OF RESONANCE EFFECTS

#6
20220356792
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Dual pump VFD controlled motor electric fracturing system

#7
20220325729
2022-10-13

CYLINDER ON DEMAND HYDRAULIC DEVICE

#8
20210381503
2021-12-09

Hydraulic machine with controllable valves and method for idling such a hydraulic machine

#9
20200208521
2020-07-02

Valve timing in electronically commutated hydraulic machine

#10
20190010965
2019-01-10

Hydraulic apparatus comprising synthetically commutated machine, and operating method

#11
20180259382
2018-09-13

Method for estimating a flow out of a fluid pump, associated calculation system and associated drilling installation

#12
20180087486
2018-03-29

Braking system for a hydraulic machine

#13
20170284388
2017-10-05

Industrial system with synthetically commutated variable displacement fluid working machine

#14
20170276125
2017-09-28

Fuel pump

#15
20170248241
2017-08-31

Distribution device for hydraulic machine

#16
20170009753
2017-01-12

Radial piston pump assemblies and use thereof in hydraulic circuits

#17
20160245266
2016-08-25

Piston shifting control system

#18
20160208898
2016-07-21

Hydraulic transmission

#19
20160195073
2016-07-07

Modular power generator

#20
20150345489
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Method and device for actuating an electrically commutated fluid working machine

#21
20150300349
2015-10-22

Variable fluid flow hydraulic pump

#22
20140110335
2014-04-24

Scum removal system for liquids

#23
20130025569
2013-01-31

Method for supplying a high-pressure pump in a fuel injection system of an internal combustion engine with fuel and fuel injection system

#24
20120063925
2012-03-15

Metering Pump

#25
20100293938
2010-11-25

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

#26
20090317266
2009-12-24

Digital hydraulic pump/motor torque modulation system and apparatus

#27
20080256939
2008-10-23

Device for managing the displacement of a hydraulic motor or a group of hydraulic motors

#28
20080250921
2008-10-16

Stroke adjustment mechanism for reciprocating pumps

#29
20060008361
2006-01-12

Variable stroke/clearance mechanism

#30
18616194
2024-08-06

Four-quadrant radial piston hydraulic device and working method thereof