MX9304408A - Arreglo de valvula de suministro para un sistema hidraulico central cerrado. - Google Patents

Arreglo de valvula de suministro para un sistema hidraulico central cerrado.

Info

Publication number
MX9304408A
MX9304408A MX9304408A MX9304408A MX9304408A MX 9304408 A MX9304408 A MX 9304408A MX 9304408 A MX9304408 A MX 9304408A MX 9304408 A MX9304408 A MX 9304408A MX 9304408 A MX9304408 A MX 9304408A
Authority
MX
Mexico
Prior art keywords
load sensing
hydraulic
control valve
pump
sensing port
Prior art date
Application number
MX9304408A
Other languages
English (en)
Inventor
Ronald Lee Pratt
Douglas Michael Durant
Larry Marvin Delfs
Derek Malcolm Eagles
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
Publication of MX9304408A publication Critical patent/MX9304408A/es

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)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Actuator (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Vehicle Body Suspensions (AREA)
  • Lift Valve (AREA)

Abstract

Un sistema hidráulico incluye una bomba hidráulica la cual proporciona fluido presurizado en una lumbrera de salida como una función de la presión en una lumbrera sensora de carga, un depósito hidráulico, y una línea sensora de presión de cara conectada a la lumbrera de percepción de carga. Una válvula de control de implemento operada por solenoide controla la comunicación de fluido a y desde una función hidráulica tal como un cilindro. Una válvula de control de suministro tiene una primera posición en la que el depósito se comunica con la lumbrera de percepción de carga y una segunda posición en donde la lumbrera de salida de bomba se comunica con la lumbrera de percepción de carga. Un resorte presiona el miembro de válvula a la primera posición, y un solenoide puede activarse para mover el miembro de válvula a su segunda posición, el solenoide es energizado cuando la válvula de control de implemento es activada de manera que la válvula de control de suministro comunica la presión de bomba a la lumbrera de percepción de carga y la bomba operará a una capacidad completa cuando la segunda función hidráulica es operada.
MX9304408A 1992-08-03 1993-07-21 Arreglo de valvula de suministro para un sistema hidraulico central cerrado. MX9304408A (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
MX9304408A true MX9304408A (es) 1994-03-31

Family

ID=25449226

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9304408A MX9304408A (es) 1992-08-03 1993-07-21 Arreglo de valvula de suministro para un sistema hidraulico central cerrado.

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
EP0477370B2 (en) * 1990-01-11 1998-11-04 Hitachi Construction Machinery Co., Ltd. Hydraulic valve apparatus

Also Published As

Publication number Publication date
EP0582099B1 (de) 1997-01-02
EP0582099A3 (en) 1994-08-24
AU659751B2 (en) 1995-05-25
EP0582099A2 (de) 1994-02-09
CA2101235A1 (en) 1994-02-04
BR9303240A (pt) 1994-03-15
JPH06159305A (ja) 1994-06-07
AU4431093A (en) 1994-02-10
ATE147139T1 (de) 1997-01-15
DE59304948D1 (de) 1997-02-13
US5245827A (en) 1993-09-21
ES2095527T3 (es) 1997-02-16
CA2101235C (en) 1995-06-27

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees