FR2339079A1 - Dispositif pour commander les pressions de travail d'un organe de manoeuvre dans un systeme fluidique - Google Patents

Dispositif pour commander les pressions de travail d'un organe de manoeuvre dans un systeme fluidique

Info

Publication number
FR2339079A1
FR2339079A1 FR7631011A FR7631011A FR2339079A1 FR 2339079 A1 FR2339079 A1 FR 2339079A1 FR 7631011 A FR7631011 A FR 7631011A FR 7631011 A FR7631011 A FR 7631011A FR 2339079 A1 FR2339079 A1 FR 2339079A1
Authority
FR
France
Prior art keywords
controlling
operating unit
fluidic system
working pressures
pressures
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.)
Pending
Application number
FR7631011A
Other languages
English (en)
Inventor
Ronald Louis Bianchetta
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Publication of FR2339079A1 publication Critical patent/FR2339079A1/fr
Pending 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
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • 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
    • F15B2211/30535—In combination with a pressure compensating valve the pressure compensating valve is arranged between pressure source and 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
    • F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
    • F15B2211/3127—Floating position connecting the working ports and the return line
    • 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
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • 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
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means 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
    • F15B2211/50—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
    • F15B2211/50581—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using counterbalance 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
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5151—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a 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
    • F15B2211/50—Pressure control
    • F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief 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
    • F15B2211/60—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
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
FR7631011A 1976-01-23 1976-10-15 Dispositif pour commander les pressions de travail d'un organe de manoeuvre dans un systeme fluidique Pending FR2339079A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/651,890 US3982469A (en) 1976-01-23 1976-01-23 Apparatus for controlling work element operating pressures in a fluid system

Publications (1)

Publication Number Publication Date
FR2339079A1 true FR2339079A1 (fr) 1977-08-19

Family

ID=24614653

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7631011A Pending FR2339079A1 (fr) 1976-01-23 1976-10-15 Dispositif pour commander les pressions de travail d'un organe de manoeuvre dans un systeme fluidique

Country Status (8)

Country Link
US (1) US3982469A (fr)
JP (1) JPS5290787A (fr)
BE (1) BE850284A (fr)
BR (1) BR7700092A (fr)
CA (1) CA1037824A (fr)
DE (1) DE2656058A1 (fr)
FR (1) FR2339079A1 (fr)
GB (1) GB1514654A (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987623A (en) * 1976-01-23 1976-10-26 Caterpillar Tractor Co. Controlled priority fluid system of a crawler type vehicle
JPS5471258A (en) * 1977-11-18 1979-06-07 Komatsu Ltd Controlling device in oil pressure driving device
JPS54156985A (en) * 1978-05-31 1979-12-11 Kobe Steel Ltd Safety device of hydraulic circuit having a plurality of actuators
US4193263A (en) * 1978-07-27 1980-03-18 Borg-Warner Corporation Fluid control system with individually variable flow control mechanism for each control section
US4286692A (en) * 1978-09-22 1981-09-01 Clark Equipment Company Hydraulic control system for operating multiple remote devices with a minimum number of connecting conduits
FR2501765A1 (fr) * 1981-03-10 1982-09-17 Mecanismes Comp Ind De Serrure, notamment pour portiere de vehicule automobile
US4481770A (en) * 1982-03-22 1984-11-13 Caterpillar Tractor Co. Fluid system with flow compensated torque control
US4922716A (en) * 1988-01-13 1990-05-08 Cincinnati Milacron Inc. Throttled exhaust outlet to reservoir for reducing noise resulting from release hydraulic pressure surges
DE3841507C1 (fr) * 1988-01-22 1989-06-29 Danfoss A/S, Nordborg, Dk
ATE130911T1 (de) * 1990-09-06 1995-12-15 Lukas Hydraulik Gmbh Automatisches wechselventil.
DE4036720C2 (de) * 1990-11-17 2001-09-13 Linde Ag Steuerschaltung für die lastunabhängige Aufteilung eines Druckmittelstromes
DK167322B1 (da) * 1991-10-28 1993-10-11 Danfoss As Hydraulisk kredsloeb
JPH05209601A (ja) * 1992-01-31 1993-08-20 Canon Inc シリンダ装置及びその制御方法
US5447093A (en) * 1993-03-30 1995-09-05 Caterpillar Inc. Flow force compensation
US5582431A (en) * 1994-09-21 1996-12-10 Anderson; Gene D. Retractable mud flap
DE19630712A1 (de) * 1996-07-30 1998-02-05 Rexroth Mannesmann Gmbh Vorschubhydraulik
DE19640100B4 (de) * 1996-09-28 2005-07-14 Sauer-Danfoss Holding Aps Hydraulisches System
DE102006060334B4 (de) * 2006-12-20 2011-08-25 Sauer-Danfoss Aps Hydraulische Ventilanordnung
CN100520089C (zh) * 2008-01-18 2009-07-29 美的集团有限公司 一种液压驱动马达的控制装置及其控制方法
CN102661296B (zh) * 2012-05-10 2015-01-21 中联重科股份有限公司 一种液压系统及工程机械车辆
CN104154064B (zh) * 2014-08-06 2016-06-08 昆明理工大学 一种实现循环加载的液压控制回路
US10066644B2 (en) * 2016-03-10 2018-09-04 Caterpilllar Forest Products Inc. Forestry grapple with high pressure protection system
CN108506259B (zh) * 2018-04-09 2022-02-11 徐州燕大传动与控制技术有限公司 一种阀后补偿的进出口独立控制的负荷传感式多路阀
CN108412829B (zh) * 2018-04-09 2022-02-11 徐州燕大传动与控制技术有限公司 一种进出口节流边能独立调节的负载敏感式多路阀
WO2019210341A1 (fr) * 2018-05-04 2019-11-07 Palfinger Ag Système hydraulique

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260325A (en) * 1963-08-19 1966-07-12 Caterpillar Tractor Co Hydraulic steering system
FR2017525A1 (fr) * 1968-09-06 1970-05-22 Borg Warner
FR2017503A1 (fr) * 1968-09-06 1970-05-22 Borg Warner
FR2185087A5 (fr) * 1972-05-16 1973-12-28 Godines Henri
DE2454661A1 (de) * 1973-12-26 1975-07-10 Hydraulic Industries Steuerschieberanordnung fuer eine mehrzahl von hydraulischen motoren
FR2266024A1 (fr) * 1974-03-28 1975-10-24 Gen Signal Corp
FR2266025A1 (en) * 1974-03-28 1975-10-24 Gen Signal Corp Hydraulic circuit e.g. for chain type dredger - has two control regions with device to pass fluid from one to other region
FR2283342A1 (fr) * 1974-08-30 1976-03-26 Nisshin Sangyo Co Dispositif de commande hydraulique multiple a compensation de pression avec distributeurs alimentes en parallele par une pompe a debit constant

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2301028A (en) * 1940-07-27 1942-11-03 Vickers Inc Power transmission
FR2230578B1 (fr) * 1973-05-25 1976-11-12 Poclain Sa
US3868821A (en) * 1974-03-20 1975-03-04 Tyrone Hydraulics Automatic pump control system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260325A (en) * 1963-08-19 1966-07-12 Caterpillar Tractor Co Hydraulic steering system
FR2017525A1 (fr) * 1968-09-06 1970-05-22 Borg Warner
FR2017503A1 (fr) * 1968-09-06 1970-05-22 Borg Warner
FR2185087A5 (fr) * 1972-05-16 1973-12-28 Godines Henri
DE2454661A1 (de) * 1973-12-26 1975-07-10 Hydraulic Industries Steuerschieberanordnung fuer eine mehrzahl von hydraulischen motoren
FR2266024A1 (fr) * 1974-03-28 1975-10-24 Gen Signal Corp
FR2266025A1 (en) * 1974-03-28 1975-10-24 Gen Signal Corp Hydraulic circuit e.g. for chain type dredger - has two control regions with device to pass fluid from one to other region
FR2283342A1 (fr) * 1974-08-30 1976-03-26 Nisshin Sangyo Co Dispositif de commande hydraulique multiple a compensation de pression avec distributeurs alimentes en parallele par une pompe a debit constant

Also Published As

Publication number Publication date
JPS5290787A (en) 1977-07-30
BE850284A (nl) 1977-07-12
US3982469A (en) 1976-09-28
DE2656058A1 (de) 1977-07-28
GB1514654A (en) 1978-06-21
BR7700092A (pt) 1977-09-06
CA1037824A (fr) 1978-09-05

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