AU2001277166A1 - Hydraulic control valve system with pressure compensated flow control - Google Patents

Hydraulic control valve system with pressure compensated flow control

Info

Publication number
AU2001277166A1
AU2001277166A1 AU2001277166A AU7716601A AU2001277166A1 AU 2001277166 A1 AU2001277166 A1 AU 2001277166A1 AU 2001277166 A AU2001277166 A AU 2001277166A AU 7716601 A AU7716601 A AU 7716601A AU 2001277166 A1 AU2001277166 A1 AU 2001277166A1
Authority
AU
Australia
Prior art keywords
valve system
pressure compensated
compensated flow
control valve
flow control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU2001277166A
Inventor
Dennis R. Barber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Husco International Inc
Original Assignee
Husco International Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Husco International Inc filed Critical Husco International Inc
Publication of AU2001277166A1 publication Critical patent/AU2001277166A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/163—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for sharing the pump output equally amongst users or groups of users, e.g. using anti-saturation, pressure compensation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D31/00—Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution
    • F16D31/02—Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution using pumps with pistons or plungers working in cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F15B2211/3053—In combination with a pressure compensating valve
    • F15B2211/30555—Inlet and outlet of the pressure compensating valve being connected to the directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/351—Flow control by regulating means in feed line, i.e. meter-in control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/57—Control of a differential pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/605—Load sensing circuits
    • F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
    • F15B2211/6054—Load sensing circuits having valve means between output member and the load sensing circuit using shuttle valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/605—Load sensing circuits
    • F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
    • F15B2211/6055—Load sensing circuits having valve means between output member and the load sensing circuit using pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7135—Combinations of output members of different types, e.g. single-acting cylinders with rotary motors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
AU2001277166A 2000-08-08 2001-07-25 Hydraulic control valve system with pressure compensated flow control Abandoned AU2001277166A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/635,187 US6318079B1 (en) 2000-08-08 2000-08-08 Hydraulic control valve system with pressure compensated flow control
US09/635,187 2000-08-08
PCT/US2001/023382 WO2002012732A2 (en) 2000-08-08 2001-07-25 Hydraulic control valve system with pressure compensated flow control

Publications (1)

Publication Number Publication Date
AU2001277166A1 true AU2001277166A1 (en) 2002-02-18

Family

ID=24546807

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001277166A Abandoned AU2001277166A1 (en) 2000-08-08 2001-07-25 Hydraulic control valve system with pressure compensated flow control

Country Status (8)

Country Link
US (1) US6318079B1 (en)
EP (1) EP1354141B1 (en)
JP (1) JP3916559B2 (en)
CN (1) CN1265101C (en)
AU (1) AU2001277166A1 (en)
BR (1) BR0113127B1 (en)
DE (1) DE60105849T2 (en)
WO (1) WO2002012732A2 (en)

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DE10219719A1 (en) * 2002-05-02 2003-11-27 Sauer Danfoss Nordborg As Nord Hydraulic valve arrangement
DE10219718B4 (en) * 2002-05-02 2007-06-06 Sauer-Danfoss Aps Hydraulic valve arrangement
DE10219717B3 (en) * 2002-05-02 2004-02-05 Sauer-Danfoss (Nordborg) A/S Hydraulic valve arrangement
US6895852B2 (en) * 2003-05-02 2005-05-24 Husco International, Inc. Apparatus and method for providing reduced hydraulic flow to a plurality of actuatable devices in a pressure compensated hydraulic system
SE526764C2 (en) * 2003-10-22 2005-11-01 Nordhydraulic Ab Hydraulic directional valve
DE102005022275A1 (en) * 2004-07-22 2006-02-16 Bosch Rexroth Aktiengesellschaft Hydraulic control arrangement
JP4081487B2 (en) * 2004-12-28 2008-04-23 東芝機械株式会社 Hydraulic control valve
US7302797B2 (en) * 2005-05-31 2007-12-04 Caterpillar Inc. Hydraulic system having a post-pressure compensator
US7222484B1 (en) * 2006-03-03 2007-05-29 Husco International, Inc. Hydraulic system with multiple pressure relief levels
DE102006060326B4 (en) * 2006-12-20 2008-11-27 Sauer-Danfoss Aps Hydraulic valve arrangement
DE102006060333B3 (en) * 2006-12-20 2008-08-21 Sauer-Danfoss Aps Hydraulic valve arrangement
US7818966B2 (en) * 2008-01-09 2010-10-26 Husco International, Inc. Hydraulic control valve system with isolated pressure compensation
US8091355B2 (en) * 2008-10-23 2012-01-10 Clark Equipment Company Flow compensated restrictive orifice for overrunning load protection
US8113033B2 (en) * 2009-06-08 2012-02-14 Cnh America Llc Method to calibrate a flow balance valve on a windrower draper header
US8430016B2 (en) * 2009-06-09 2013-04-30 Husco International, Inc. Control valve assembly with a workport pressure regulating device
US8353157B2 (en) * 2009-08-06 2013-01-15 Cnh America Llc Open center hydraulic system
EP3514394A1 (en) * 2010-05-11 2019-07-24 Parker Hannifin Corp. Pressure compensated hydraulic system having differential pressure control
US8215107B2 (en) 2010-10-08 2012-07-10 Husco International, Inc. Flow summation system for controlling a variable displacement hydraulic pump
GB2503158B (en) 2011-03-15 2017-08-30 Husco Int Inc System for allocating fluid from multiple pumps to a plurality of hydraulic functions on a priority basis
US9003786B2 (en) * 2011-05-10 2015-04-14 Caterpillar Inc. Pressure limiting in hydraulic systems
CN103748365B (en) * 2011-08-24 2016-09-07 株式会社小松制作所 Fluid power system
US8899034B2 (en) * 2011-12-22 2014-12-02 Husco International, Inc. Hydraulic system with fluid flow summation control of a variable displacement pump and priority allocation of fluid flow
DE102012207422A1 (en) * 2012-05-04 2013-11-07 Robert Bosch Gmbh Hydraulic control system used for working machine e.g. mini excavators, has pressure reduction device for high load pressure, which is more adjusted in dependence of controlled volumetric flow of adjuster of the hydraulic pump
JP5984164B2 (en) * 2012-10-17 2016-09-06 日立建機株式会社 Hydraulic drive unit for construction machinery
US9145905B2 (en) 2013-03-15 2015-09-29 Oshkosh Corporation Independent load sensing for a vehicle hydraulic system
KR101486256B1 (en) 2013-04-30 2015-01-27 주식회사 유압사랑 Hydraulic system which is capable of controlling the actuator linearly
KR101487455B1 (en) 2013-05-08 2015-01-28 주식회사 유압사랑 Flow boost-up circuit for load sensing Hydraulic system
US10024445B2 (en) * 2014-06-25 2018-07-17 Parker-Hannifin Corporation Reverse flow check valve in hydraulic valve with series circuit
CN105840568B (en) * 2016-06-08 2018-04-13 山推工程机械股份有限公司 A kind of reducing mechanism extreme position internal stress method
CN106168234B (en) * 2016-07-13 2018-06-29 柳州柳工挖掘机有限公司 A kind of constant displacement pump variable delivery hydraulic system
JP7049213B2 (en) * 2018-08-10 2022-04-06 川崎重工業株式会社 Hydraulic circuit of construction machinery
WO2020100236A1 (en) * 2018-11-14 2020-05-22 株式会社島津製作所 Fluid control device
US11313388B1 (en) 2021-01-29 2022-04-26 Cnh Industrial America Llc System and method for controlling hydraulic fluid flow within a work vehicle
US11143211B1 (en) 2021-01-29 2021-10-12 Cnh Industrial America Llc System and method for controlling hydraulic fluid flow within a work vehicle
US11530524B2 (en) 2021-01-29 2022-12-20 Cnh Industrial America Llc System and method for controlling hydraulic fluid flow within a work vehicle
US11261582B1 (en) 2021-01-29 2022-03-01 Cnh Industrial America Llc System and method for controlling hydraulic fluid flow within a work vehicle using flow control valves

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KR920007650B1 (en) * 1989-02-20 1992-09-14 히다찌 겐끼 가부시기가이샤 Hyydraulic circuit for working machines
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US5077972A (en) * 1990-07-03 1992-01-07 Caterpillar Inc. Load pressure duplicating circuit
US5067389A (en) 1990-08-30 1991-11-26 Caterpillar Inc. Load check and pressure compensating valve
US5400816A (en) 1990-10-05 1995-03-28 Dana Corporation Pilot actuated override mechanism for holding valve
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US5699665A (en) * 1996-04-10 1997-12-23 Commercial Intertech Corp. Control system with induced load isolation and relief
US5715865A (en) 1996-11-13 1998-02-10 Husco International, Inc. Pressure compensating hydraulic control valve system
US5791142A (en) * 1997-03-27 1998-08-11 Husco International, Inc. Hydraulic control valve system with split pressure compensator
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Also Published As

Publication number Publication date
BR0113127B1 (en) 2009-12-01
CN1265101C (en) 2006-07-19
US6318079B1 (en) 2001-11-20
DE60105849D1 (en) 2004-10-28
WO2002012732A2 (en) 2002-02-14
EP1354141A2 (en) 2003-10-22
JP3916559B2 (en) 2007-05-16
EP1354141B1 (en) 2004-09-22
CN1496449A (en) 2004-05-12
WO2002012732A3 (en) 2003-08-07
DE60105849T2 (en) 2005-10-13
JP2004514093A (en) 2004-05-13
BR0113127A (en) 2003-07-15

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