ATE350585T1 - INLET AREA FOR A LOAD BALANCED DIRECTIONAL CONTROL VALVE - Google Patents

INLET AREA FOR A LOAD BALANCED DIRECTIONAL CONTROL VALVE

Info

Publication number
ATE350585T1
ATE350585T1 AT04018890T AT04018890T ATE350585T1 AT E350585 T1 ATE350585 T1 AT E350585T1 AT 04018890 T AT04018890 T AT 04018890T AT 04018890 T AT04018890 T AT 04018890T AT E350585 T1 ATE350585 T1 AT E350585T1
Authority
AT
Austria
Prior art keywords
directional control
load
valve
control valve
inlet area
Prior art date
Application number
AT04018890T
Other languages
German (de)
Inventor
Luciano Gilocchi
Original Assignee
Walvoil Spa
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 Walvoil Spa filed Critical Walvoil Spa
Application granted granted Critical
Publication of ATE350585T1 publication Critical patent/ATE350585T1/en

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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
    • F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)
  • Multiple-Way Valves (AREA)

Abstract

The invention falls within the field of load sensing directional control valves and in particular it refers to an inlet section for load sensing directional control valves operating with open centre and closed centre circuit, with or without a pressure reducer valve for internal pilot pressure supply, a load-sensing signal unloader valve, a load-sensing signal pressure relief valve, while always present is a three way flow compensator (C) and the internal pilot lines; said inlet section comprises in combination a variable area damper (4), a check valve (5), a copy-spool (2) and a calibrated check valve (6).
AT04018890T 2004-08-10 2004-08-10 INLET AREA FOR A LOAD BALANCED DIRECTIONAL CONTROL VALVE ATE350585T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04018890A EP1626183B1 (en) 2004-08-10 2004-08-10 Inlet section for load sensing directional control valves

Publications (1)

Publication Number Publication Date
ATE350585T1 true ATE350585T1 (en) 2007-01-15

Family

ID=34926110

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04018890T ATE350585T1 (en) 2004-08-10 2004-08-10 INLET AREA FOR A LOAD BALANCED DIRECTIONAL CONTROL VALVE

Country Status (4)

Country Link
EP (1) EP1626183B1 (en)
AT (1) ATE350585T1 (en)
DE (1) DE602004004109T2 (en)
ES (1) ES2279998T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105570215B (en) * 2016-03-17 2017-07-28 上海振华重工(集团)股份有限公司 A kind of identical tension hydraulic valve bank
CN112565381B (en) * 2020-11-30 2022-05-31 杭州迪普科技股份有限公司 Data packet forwarding method, device and equipment

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE396239B (en) * 1976-02-05 1977-09-12 Hytec Ab METHOD AND DEVICE FOR REGULATING THE POWER SUPPLIED TO A HYDRAULIC, A PNEUMATIC OR A HYDRAULIC PNEUMATIC SYSTEM
US4011721A (en) * 1976-04-14 1977-03-15 Eaton Corporation Fluid control system utilizing pressure drop valve
DE4027047A1 (en) * 1990-08-27 1992-03-05 Rexroth Mannesmann Gmbh VALVE ARRANGEMENT FOR LOAD-INDEPENDENT CONTROL OF SEVERAL HYDRAULIC CONSUMERS
FR2694964B1 (en) * 1992-08-21 1994-11-04 Rexroth Sigma Hydraulic circuit for controlling a distributor of the flow division type independent of the load.
FR2745337B1 (en) * 1996-02-26 1998-05-22 Rexroth Sigma OPEN CENTER INPUT ELEMENT FOR HYDRAULIC DISTRIBUTION
DE19800721A1 (en) * 1998-01-12 1999-07-15 Danfoss As Control device for a hydraulic motor

Also Published As

Publication number Publication date
DE602004004109T2 (en) 2007-07-12
ES2279998T3 (en) 2007-09-01
EP1626183A1 (en) 2006-02-15
DE602004004109D1 (en) 2007-02-15
EP1626183B1 (en) 2007-01-03

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties