ES2095527T3 - Sistema hidraulico con aviso de carga. - Google Patents

Sistema hidraulico con aviso de carga.

Info

Publication number
ES2095527T3
ES2095527T3 ES93110985T ES93110985T ES2095527T3 ES 2095527 T3 ES2095527 T3 ES 2095527T3 ES 93110985 T ES93110985 T ES 93110985T ES 93110985 T ES93110985 T ES 93110985T ES 2095527 T3 ES2095527 T3 ES 2095527T3
Authority
ES
Spain
Prior art keywords
hydraulic
load sensing
control valve
pump
sensing port
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.)
Expired - Lifetime
Application number
ES93110985T
Other languages
English (en)
Inventor
Douglas Michael Durant
Larry Marvin Delfs
Derek Malcolm Eagles
Ronald Lee Pratt
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.)
Deere and Co
Original Assignee
Deere and 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 and Co filed Critical Deere and Co
Application granted granted Critical
Publication of ES2095527T3 publication Critical patent/ES2095527T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Vehicle Body Suspensions (AREA)
  • Lift Valve (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Actuator (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

SE DESCRIBE UN SISTEMA HIDRAULICO, QUE CONTIENE UNA BOMBA (12), CUYA PRESION DE DESCARGA SE CONTROLA EN DEPENDENCIA DE UNA PRESION FORMADA EN UNA CONEXION (16) INDICADORA DE CARGA, UN RECIPIENTE (18) DE RESERVA, UNA FUNCION (22) HIDRAULICA Y UNA VALVULA (20) DE CONTROL, A TRAVES DE LA CUAL EN DEPENDENCIA DE LA SEÑAL DE CONTROL LA FUNCION (22) HIDRAULICA PUEDE SER UNIDA A ELECCION CON LA BOMBA (12) O EL RECIPIENTE (18) DE RESERVA. PARA LIMITAR LA PRESION DE LA BOMBA A LA MEDIDA NECESARIA, SE PROPONE UNA VALVULA (40,70) INDICADORA DE CARGA, A TRAVES DE LA CUAL LA CONEXION (16) INDICADORA DE CARGA ESTA IMPULSADA A ELECCION CON LA PRESION DE SALIDA DE LA BOMBA (12) O LA PRESION EL RECIPIENTE (18) DE RESERVA. LA VALVULA (40,70) INDICADORA DE CARGA ES CONMUTABLE EN DEPENDENCIA DE LA SEÑAL DE CONTROL DADA EN LA VALVULA (20) DE CONTROL, DE FORMA QUE LA CONEXION (6) INDICADORA DE CARGA EN LA ACTIVACION DE LA VALVULA (20) DE CONTROL, ESTA UNIDA CON LA SALIDA (14) DE LA BOMBA Y EN SITUACION DE NO ACTIVIDAD, LA VALVULA (20) DE CONTROL ESTA UNIDA CON EL RECIPIENTE (16) DE RESERVA.
ES93110985T 1992-08-03 1993-07-09 Sistema hidraulico con aviso de carga. Expired - Lifetime ES2095527T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/923,762 US5245827A (en) 1992-08-03 1992-08-03 Supply valve arrangement for closed center hydraulic system

Publications (1)

Publication Number Publication Date
ES2095527T3 true ES2095527T3 (es) 1997-02-16

Family

ID=25449226

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93110985T Expired - Lifetime ES2095527T3 (es) 1992-08-03 1993-07-09 Sistema hidraulico con aviso de carga.

Country Status (10)

Country Link
US (1) US5245827A (es)
EP (1) EP0582099B1 (es)
JP (1) JPH06159305A (es)
AT (1) ATE147139T1 (es)
AU (1) AU659751B2 (es)
BR (1) BR9303240A (es)
CA (1) CA2101235C (es)
DE (1) DE59304948D1 (es)
ES (1) ES2095527T3 (es)
MX (1) MX9304408A (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4311191C2 (de) * 1993-04-05 1995-02-02 Deere & Co Hydrauliksystem zur Versorgung offener oder geschlossener Hydraulikfunktionen
DE10040395A1 (de) 1999-09-14 2001-03-22 Caterpillar Inc Hydraulisches Steuersystem zum Verbessern des Pumpenansprechens und der Dynamischen Übereinstimmung von Pumpe und Ventil
US20060196179A1 (en) * 2005-03-01 2006-09-07 Arun Kesavan Load-sensing integrated brake and fan hydraulic system
US8267004B2 (en) * 2009-05-20 2012-09-18 Lifetime Enterprises, Llc Adaptable hydraulic control system
CN102734276B (zh) * 2012-06-28 2015-07-01 三一汽车起重机械有限公司 负载敏感电比例液压控制系统和工程机械
CN103148038A (zh) * 2013-03-20 2013-06-12 镇江华瑞液压机械有限公司 双重节能组合液压阀
CN103727082B (zh) * 2013-12-27 2016-08-31 三一汽车起重机械有限公司 液压系统和工程机械
CN105158076A (zh) * 2015-08-19 2015-12-16 河南科技大学 一种冲击式气动承载装置
DE102018212077A1 (de) * 2018-07-19 2020-01-23 Deere & Company Verfahren zum Betreiben eines hydraulischen Verbrauchers an einem elektrisch betätigbaren Steuerventil
CN111577689B (zh) * 2020-06-03 2021-03-26 江苏科迈液压控制系统有限公司 一种负载敏感比例多路阀抗流量饱和方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3486334A (en) * 1968-05-16 1969-12-30 Cessna Aircraft Co Hydraulic power transmission control
US4276811A (en) * 1972-11-08 1981-07-07 Control Concepts, Inc. Closed center programmed valve system with load sense
US4401009A (en) * 1972-11-08 1983-08-30 Control Concepts, Inc. Closed center programmed valve system with load sense
US4050596A (en) * 1975-07-24 1977-09-27 Control Concepts, Inc. Electrohydraulic valve assembly for front end loader attachment to farm tractor
US4046399A (en) * 1975-11-05 1977-09-06 Control Concepts, Inc. Electrohydraulic system for towed vehicle
US4023646A (en) * 1975-11-24 1977-05-17 Allis-Chalmers Corporation Load sensitive hydraulic system
US4107924A (en) * 1977-04-28 1978-08-22 Caterpillar Tractor Co. Pump upgrading system
US4199942A (en) * 1978-09-28 1980-04-29 Eaton Corporation Load sensing control for hydraulic system
DE3318052A1 (de) * 1982-12-30 1984-07-05 Robert Bosch Gmbh, 7000 Stuttgart Hydraulische steuereinrichtung
US4589437A (en) * 1983-07-07 1986-05-20 Zeuner Kenneth W Reel speed valve assembly
DE3914904C2 (de) * 1989-05-05 1995-06-29 Rexroth Mannesmann Gmbh Regelung für eine lastabhängig arbeitende Verstellpumpe
DE69022991T3 (de) * 1990-01-11 1999-07-15 Hitachi Construction Machinery Co., Ltd., Tokio/Tokyo Hydraulisches ventil

Also Published As

Publication number Publication date
ATE147139T1 (de) 1997-01-15
EP0582099A3 (en) 1994-08-24
CA2101235C (en) 1995-06-27
EP0582099A2 (de) 1994-02-09
AU659751B2 (en) 1995-05-25
BR9303240A (pt) 1994-03-15
JPH06159305A (ja) 1994-06-07
AU4431093A (en) 1994-02-10
DE59304948D1 (de) 1997-02-13
MX9304408A (es) 1994-03-31
EP0582099B1 (de) 1997-01-02
CA2101235A1 (en) 1994-02-04
US5245827A (en) 1993-09-21

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