ClassID:

146328

F15B2211/41509 - CPC Classification

Classification description:

Circuits for servomotor systems; Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a directional control valve

Sub-classes:
Recent Application in this class:
#1
20260022713
2026-01-22

HYDRAULIC DRIVE APPARATUS

#2
20250257551
2025-08-14

Hydraulic Control System in Working Machine

#3
20240360849
2024-10-31

Hydraulic system for rotary implement

#4
20240287763
2024-08-29

Work Machine

#5
20240117601
2024-04-11

Hydraulic control system

#6
20220333349
2022-10-20

Hydraulic unit

#7
20220170241
2022-06-02

Flow control valve

#8
20200140063
2020-05-07

Horizontal stabilizer trim actuator systems and methods

#9
20190186105
2019-06-20

Work machine

#10
20180328386
2018-11-15

Method and device for controlling a hydraulically actuated drive unit of a valve

#11
20180223881
2018-08-09

Hydraulic leak detection system

#12
20180172037
2018-06-21

System and method for providing hydraulic power

#13
20180022440
2018-01-25

Horizontal stabilizer trim actuator systems and methods

#14
20180017087
2018-01-18

Hydraulic actuator control circuit

#15
20170254308
2017-09-07

Hydrostatic drive

#16
20170175779
2017-06-22

Hydraulic system of work machine

#17
20170159263
2017-06-08

Valve unit for a quick-changer and quick-change system

#18
20170074293
2017-03-16

Metered fluid source connection to downstream functions in PCLS systems

#19
20170058921
2017-03-02

Automatic oil spill detection system

#20
20160376768
2016-12-29

Valve subassembly having at least two pump lines for a pump

#21
20160341168
2016-11-24

Hydrostatic drive system

#22
20160002888
2016-01-07

Variable load sense open center hybrid system

#23
20150361998
2015-12-17

Hydraulic system with energy recovery

#24
20150354167
2015-12-10

Hydraulic control device and construction machine with same

#25
20150308625
2015-10-29

Hydraulic control arrangement for a plurality of actuators

#26
20150240455
2015-08-27

Hydraulic driving system for construction machine

#27
20150107234
2015-04-23

Boom driving apparatus for construction machine

#28
20150059331
2015-03-05

Hydraulic circuit for construction machine and control device therefor

#29
20150044007
2015-02-12

Hydraulic control device and construction machine provided with same

#30
20140190158
2014-07-10

Hydraulic circuit, and combination valve used in same hydraulic circuit

#31
20140116038
2014-05-01

Hydraulic system with open loop electrohydraulic pressure compensation

#32
20140099212
2014-04-10

Automatic oil spill detection system

#33
20140004986
2014-01-02

ELECTRIC MOTOR/GENERATOR POWER TRANSFER UNIT

#34
20130160443
2013-06-27

Hydraulic system with fluid flow summation control of a variable displacement pump and priority allocation of fluid flow

#35
20120299310
2012-11-29

Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression

#36
20120279209
2012-11-08

Systems and methods for energy storage and recovery using compressed gas

#37
20120224983
2012-09-06

MULTI-WAY VALVE, HYDRAULIC DEVICE AND CONCRETE PUMP VEHICLE

#38
20120006013
2012-01-12

High-efficiency energy-conversion based on fluid expansion and compression

#39
20120000557
2012-01-05

Systems and methods for reducing dead volume in compressed-gas energy storage systems

#40
20110314803
2011-12-29

Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange

#41
20110296823
2011-12-08

Systems and methods for energy storage and recovery using gas expansion and compression

#42
20110232787
2011-09-29

Stack valve

#43
20110219760
2011-09-15

Systems and methods for energy storage and recovery using compressed gas

#44
20110167813
2011-07-14

Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression

#45
20110146258
2011-06-23

Hydraulic Circuit

#46
20110137515
2011-06-09

METHOD FOR OPERATING A HYDRAULIC OR PNEUMATIC CONTROL DEVICE OF A SEMI-AUTOMATIC TRANSMISSION

#47
20110072810
2011-03-31

Controller of hybrid construction machine

#48
20110056193
2011-03-10

Systems and methods for energy storage and recovery using compressed gas

#49
20110030363
2011-02-10

Open center hydraulic system

#50
20100310386
2010-12-09

Hydraulic damping assembly and regulating system

#51
20100229970
2010-09-16

Valve apparatus

#52
20100175948
2010-07-15

HYDRAULIC ACTUATING CIRCUIT FOR POWER-ASSISTED STEERING, AND MOTOR VEHICLE EQUIPPED THEREWITH

#53
20100139277
2010-06-10

Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression

#54
20100132798
2010-06-03

Control valve actuation

#55
20100089063
2010-04-15

Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression

#56
20100059130
2010-03-11

Directional control valve device and directional control valve device block having directional control valve devices

#57
20100031435
2010-02-11

BYPASS SYSTEM TO CONTROL LIQUID VOLUME

#58
20090282822
2009-11-19

Systems and methods for energy storage and recovery using compressed gas

#59
20090158725
2009-06-25

Hydraulic pump with control system

#60
20090094973
2009-04-16

Hydraulic circuit for heavy equipment

#61
20090094971
2009-04-16

SYSTEM AND APPARATUS TO SYNCHRONIZE A PLURALITY OF HYDRAULICALLY ACTUATED COMPONENTS

#62
20080128036
2008-06-05

Softstart valve means

#63
20070235078
2007-10-11

Hydraulic supply systems

#64
20070071609
2007-03-29

Digital pump with multiple outlets

#65
20060179691
2006-08-17

Hydraulic control device of an excavator with improved loading performance on a slope

#66
20060102241
2006-05-18

Suspension device

#67
20050138924
2005-06-30

Hydraulic drive apparatus