FR2952139B1 - CONTROL CIRCUIT FOR A HYDRAULIC ACTUATOR AND MACHINE EQUIPPED WITH SUCH CIRCUIT. - Google Patents

CONTROL CIRCUIT FOR A HYDRAULIC ACTUATOR AND MACHINE EQUIPPED WITH SUCH CIRCUIT.

Info

Publication number
FR2952139B1
FR2952139B1 FR0957677A FR0957677A FR2952139B1 FR 2952139 B1 FR2952139 B1 FR 2952139B1 FR 0957677 A FR0957677 A FR 0957677A FR 0957677 A FR0957677 A FR 0957677A FR 2952139 B1 FR2952139 B1 FR 2952139B1
Authority
FR
France
Prior art keywords
circuit
hydraulic actuator
machine equipped
control circuit
control
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.)
Active
Application number
FR0957677A
Other languages
French (fr)
Other versions
FR2952139A1 (en
Inventor
Loic Mailleux
Dimitri Bourgeois
Philippe Dupuy
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.)
Mailleux SA
Original Assignee
Mailleux SA
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 Mailleux SA filed Critical Mailleux SA
Priority to FR0957677A priority Critical patent/FR2952139B1/en
Publication of FR2952139A1 publication Critical patent/FR2952139A1/en
Application granted granted Critical
Publication of FR2952139B1 publication Critical patent/FR2952139B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/0422—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with manually-operated pilot valves, e.g. joysticks
    • 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
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
FR0957677A 2009-10-30 2009-10-30 CONTROL CIRCUIT FOR A HYDRAULIC ACTUATOR AND MACHINE EQUIPPED WITH SUCH CIRCUIT. Active FR2952139B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0957677A FR2952139B1 (en) 2009-10-30 2009-10-30 CONTROL CIRCUIT FOR A HYDRAULIC ACTUATOR AND MACHINE EQUIPPED WITH SUCH CIRCUIT.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0957677A FR2952139B1 (en) 2009-10-30 2009-10-30 CONTROL CIRCUIT FOR A HYDRAULIC ACTUATOR AND MACHINE EQUIPPED WITH SUCH CIRCUIT.

Publications (2)

Publication Number Publication Date
FR2952139A1 FR2952139A1 (en) 2011-05-06
FR2952139B1 true FR2952139B1 (en) 2011-12-09

Family

ID=42244856

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0957677A Active FR2952139B1 (en) 2009-10-30 2009-10-30 CONTROL CIRCUIT FOR A HYDRAULIC ACTUATOR AND MACHINE EQUIPPED WITH SUCH CIRCUIT.

Country Status (1)

Country Link
FR (1) FR2952139B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104047917A (en) * 2014-06-23 2014-09-17 柳州柳工液压件有限公司 Flow distributor for construction machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3119722B2 (en) * 1992-05-25 2000-12-25 株式会社小松製作所 Hydraulic circuit of 4-position closed center switching valve by pressure proportional control valve
EP1291467B1 (en) * 2000-05-23 2010-01-20 Kobelco Construction Machinery Co., Ltd. Construction machine
FR2918684B1 (en) * 2007-07-10 2012-08-03 Etude Et D Innovation Dans Le Materiel Agricole Soc D HYDRAULIC CONTROL CIRCUIT OF A DOUBLE-EFFECTIVE LIFTING JACK

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104047917A (en) * 2014-06-23 2014-09-17 柳州柳工液压件有限公司 Flow distributor for construction machine
CN104047917B (en) * 2014-06-23 2016-08-24 柳州柳工液压件有限公司 Flow distributor for construction machinery

Also Published As

Publication number Publication date
FR2952139A1 (en) 2011-05-06

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