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AR245658A1 - Una disposicion hidraulica detectora de carga de centro abierto. - Google Patents

Una disposicion hidraulica detectora de carga de centro abierto.

Info

Publication number
AR245658A1
AR245658A1 AR29753484A AR29753484A AR245658A1 AR 245658 A1 AR245658 A1 AR 245658A1 AR 29753484 A AR29753484 A AR 29753484A AR 29753484 A AR29753484 A AR 29753484A AR 245658 A1 AR245658 A1 AR 245658A1
Authority
AR
Argentina
Prior art keywords
primary
fluid
pump
circuit
regulate
Prior art date
Application number
AR29753484A
Other languages
English (en)
Original Assignee
Deere & 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 Deere & Co filed Critical Deere & Co
Application granted granted Critical
Publication of AR245658A1 publication Critical patent/AR245658A1/es

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/09—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by means for actuating valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/07—Supply of pressurised fluid for steering also supplying other consumers ; control thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87177—With bypass
    • Y10T137/87185—Controlled by supply or exhaust valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Power Steering Mechanism (AREA)

Abstract

UNA DISPOSICION HIDRAULICA DETECTORA DE CARGA, DE CENTRO ABIERTO, QUE COMPRENDE (A) UN DEPOSITO CAPAZ DE CONTENER UNA CANTIDAD DE FLUIDO; (B) UNA BOMBA DE DESPLAZAMIENTO FIJO; (C) UN CIRCUITO DETRABAJO PRIMARIO INCLUYENDO UNA VALVULA DE CONTROL PRIMARIO EN LA QUE ESTA CONECTADO UN MECANISMO DE REALIMENTACION, PARA REGULAR EL FLUJO QUE DICHA BOMBA SUMINISTRA A UNA FUNCION HIDRAULICA PRIMARIA; (D) UN CIRCUITO DE TRABAJO SECUNDARIO, INCLUYENDO UNA VALVULA DE CONTROL SECUNDARIO MANUAL PARA REGULAR EL FLUJO QUE DICHA BOMBA SUMINISTRA A UNA FUNCION HIDRAULICA SECUNDARIA; (E) UNA VALVULA DE PRIORIDAD CONECTADA ENTRE DICHA BOMBA Y DICHOS CIRCUITOS DE TRABAJO A FIN DE REGULAR LA PRESION DE FLUIDO QUE DICHA BOMBA SUMINISTRA A DICHO CIRCUITO PRIMARIO; (F) UNA LINEA DE SENAL DE CARGA QUE CONECTA LA VALVULA DEL CIRCUITO PRIMARIO CON DICHA VALVULA DE PRIORIDAD; Y (G) MEDIOS PARA DETECTAR VARIACIONES DE PRESION EN EL FLUIDO, A FIN DE IMPEDIR QUE FLUIDO DE DICHO CIRCUITO PRIMARIO PUEDA SALIR PORÑ DICHA LINEA DE SENAL DE CARGA, CUANDO TIENE UNA PRESION MENOR QUE LA DEL FLUIDO PRESENTE EN DICHA SENAL DE CARGA, ELIMINANDO LOS MOVIMIENTOS BRUSCOS DE RETROCESO PROVENIENTES DE DICHA VALVULA DE CONTROL PRIMARIO.
AR29753484A 1983-08-11 1984-08-09 Una disposicion hidraulica detectora de carga de centro abierto. AR245658A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/524,806 US4470260A (en) 1983-08-11 1983-08-11 Open center load sensing hydraulic system

Publications (1)

Publication Number Publication Date
AR245658A1 true AR245658A1 (es) 1994-02-28

Family

ID=24090739

Family Applications (1)

Application Number Title Priority Date Filing Date
AR29753484A AR245658A1 (es) 1983-08-11 1984-08-09 Una disposicion hidraulica detectora de carga de centro abierto.

Country Status (13)

Country Link
US (1) US4470260A (es)
EP (1) EP0137184B1 (es)
JP (1) JPH0639257B2 (es)
AR (1) AR245658A1 (es)
AT (1) ATE31107T1 (es)
AU (1) AU3114484A (es)
BR (1) BR8404018A (es)
CA (1) CA1218282A (es)
DE (1) DE3467797D1 (es)
DK (1) DK157095C (es)
ES (1) ES535073A0 (es)
MX (1) MX162134A (es)
ZA (1) ZA846229B (es)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664210A (en) * 1985-01-19 1987-05-12 Kanzaki Kokyukoki Mfg. Co. Ltd. Hydraulic steering system
US4723475A (en) * 1986-09-29 1988-02-09 Deere & Company Fully metered compensation steering system
DE3871157D1 (de) * 1987-12-01 1992-06-17 Zahnradfabrik Friedrichshafen Steuereinrichtung fuer zwei ueber je einen stromzweig durch eine hochdruckpumpe versorgte hydraulische stellvorrichtungen.
DE3814508A1 (de) * 1988-04-29 1989-11-09 Danfoss As Hydrostatische lenkeinrichtung
SE462212B (sv) * 1988-08-23 1990-05-21 Bahco Hydrauto Ab Hydrualisk styranordning foer eldrivna fordon
US4907452A (en) * 1988-10-05 1990-03-13 Ford Motor Company System for detecting rotational imbalance of vehicle roadwheels
US5050696A (en) * 1988-10-20 1991-09-24 Deere & Company Secondary hydraulic steering system
JP2839625B2 (ja) * 1990-03-05 1998-12-16 日立建機株式会社 油圧駆動装置
US5269186A (en) * 1990-12-24 1993-12-14 Ford Motor Company Apparatus and method for detecting rotational imbalance of vehicle roadwheels
US5282516A (en) * 1992-06-01 1994-02-01 Caterpillar Inc. Regenerative steering system for hydrostatic drives
DE4434532A1 (de) * 1994-02-25 1995-08-31 Danfoss As Hydraulisches Lenksystem für Arbeitsfahrzeuge
DE4407308C1 (de) * 1994-03-04 1995-08-17 Hydraulik Nord Gmbh Hydraulische Lenkeinrichtung mit Übersetzungsänderung
US5615553A (en) * 1995-06-28 1997-04-01 Case Corporation Hydraulic circuit with load sensing feature
US5784867A (en) * 1995-10-03 1998-07-28 Shivvers Incorporated Variable force traction enhance systems
GB2306926B (en) * 1995-11-10 1999-09-01 Ultra Hydraulics Ltd hydraulic flow control valve assemblies
JPH11115780A (ja) * 1997-10-15 1999-04-27 Komatsu Ltd 作業車両用ステアリングポンプの容量制御方法および装置
US6244158B1 (en) 1998-01-06 2001-06-12 Fps, Inc. Open center hydraulic system with reduced interaction between branches
WO2000005490A1 (en) 1998-07-23 2000-02-03 Sauer Inc. Hydraulic fan drive system having a non-dedicated flow source
US6848255B2 (en) 2002-12-18 2005-02-01 Caterpillar Inc Hydraulic fan drive system
US7251934B2 (en) * 2004-03-27 2007-08-07 Cnh America Llc Work vehicle hydraulic system
DE102005033576B4 (de) * 2005-07-19 2009-01-15 Sauer-Danfoss Aps Hydraulische Lenkeinrichtung
JP4798658B2 (ja) * 2006-05-16 2011-10-19 日本輸送機株式会社 産業車両の油圧システム
US7891459B2 (en) * 2006-07-06 2011-02-22 Cnh America Llc Multiple ratio steering for loader
US8360531B2 (en) * 2007-11-13 2013-01-29 Clark Equipment Company Hydraulic brake system
US8806862B2 (en) * 2007-12-20 2014-08-19 Parker-Hannifin Corporation Smart flow sharing system
WO2012125794A1 (en) 2011-03-15 2012-09-20 Husco International, Inc. System for allocating fluid from multiple pumps to a plurality of hydraulic functions on a priority basis
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
US9133605B2 (en) 2012-02-27 2015-09-15 Husco International, Inc. Flow sensing based variable pump control technique in a hydraulic system with open center control valves
US9605411B2 (en) * 2014-09-26 2017-03-28 Caterpillar Inc. Brake charge valve with set minimum fixed hydro-mechanical pressure by-pass function
CN104481958B (zh) * 2014-11-10 2017-08-15 广西柳工机械股份有限公司 一种分合流选择功能液控阀及装载机定变量液压系统
CA3095000C (en) * 2017-10-27 2022-08-16 Tri Tool Inc. Pipe facing machine system
US10808733B2 (en) * 2019-03-05 2020-10-20 Deere & Company Open center to open center load sense conversion valve and hydraulic systems therewith

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892311A (en) * 1958-01-08 1959-06-30 Deere & Co Hydraulic apparatus
US2892312A (en) * 1958-01-27 1959-06-30 Deere & Co Demand compensated hydraulic system
US3750405A (en) * 1971-08-16 1973-08-07 Int Harvester Co Closed center hydraulic system
US4044786A (en) * 1976-07-26 1977-08-30 Eaton Corporation Load sensing steering system with dual power source
US4034563A (en) * 1976-07-28 1977-07-12 International Harvester Company Load sensitive hydraulic system
US4116001A (en) * 1977-08-01 1978-09-26 International Harvester Company Simplified load sensitive hydraulic system for use with a vehicle steering system
DE2934221C2 (de) * 1979-08-24 1982-12-23 Danfoss A/S, 6430 Nordborg Hydraulische Lenk- und Arbeitseinrichtung für Fahrzeuge
US4292805A (en) * 1979-09-24 1981-10-06 Rexnord Inc. Servo-valve convertible construction
US4293284A (en) * 1979-10-09 1981-10-06 Double A Products Company Power limiting control apparatus for pressure-flow compensated variable displacement pump assemblies
US4343151A (en) * 1980-05-16 1982-08-10 Caterpillar Tractor Co. Series - parallel selector for steering and implement
US4337620A (en) * 1980-07-15 1982-07-06 Eaton Corporation Load sensing hydraulic system
US4665695A (en) * 1981-03-13 1987-05-19 Trw Inc. Hydrostatic load sense steering system

Also Published As

Publication number Publication date
BR8404018A (pt) 1985-07-16
DK387484D0 (da) 1984-08-10
DE3467797D1 (en) 1988-01-07
JPS6060069A (ja) 1985-04-06
US4470260A (en) 1984-09-11
ES8505595A1 (es) 1985-06-01
AU3114484A (en) 1985-02-14
EP0137184B1 (de) 1987-11-25
ES535073A0 (es) 1985-06-01
ATE31107T1 (de) 1987-12-15
DK157095B (da) 1989-11-06
EP0137184A3 (en) 1986-06-04
EP0137184A2 (de) 1985-04-17
DK387484A (da) 1985-02-12
ZA846229B (en) 1986-03-26
DK157095C (da) 1990-04-02
JPH0639257B2 (ja) 1994-05-25
MX162134A (es) 1991-04-01
CA1218282A (en) 1987-02-24

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