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EP0117209A1 - Servostromregler - Google Patents

Servostromregler Download PDF

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Publication number
EP0117209A1
EP0117209A1 EP84400328A EP84400328A EP0117209A1 EP 0117209 A1 EP0117209 A1 EP 0117209A1 EP 84400328 A EP84400328 A EP 84400328A EP 84400328 A EP84400328 A EP 84400328A EP 0117209 A1 EP0117209 A1 EP 0117209A1
Authority
EP
European Patent Office
Prior art keywords
slide
micro
translation
flow
piston
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.)
Withdrawn
Application number
EP84400328A
Other languages
English (en)
French (fr)
Inventor
Claude Bouveret
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.)
Compagnie Parisienne dOutillage a Air Comprime SA
Original Assignee
Compagnie Parisienne dOutillage a Air Comprime 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
Priority claimed from FR8302575A external-priority patent/FR2541391B1/fr
Priority claimed from FR8310025A external-priority patent/FR2547664B1/fr
Application filed by Compagnie Parisienne dOutillage a Air Comprime SA filed Critical Compagnie Parisienne dOutillage a Air Comprime SA
Publication of EP0117209A1 publication Critical patent/EP0117209A1/de
Withdrawn legal-status Critical Current

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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
    • F15B13/043—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 electrically-controlled pilot valves
    • F15B13/0435—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 electrically-controlled pilot valves the pilot valves being sliding valves
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/05—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0405—Valve members; Fluid interconnections therefor for seat valves, i.e. poppet valves
    • 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
    • F15B13/043—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 electrically-controlled pilot valves
    • F15B13/0433—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 electrically-controlled pilot valves the pilot valves being pressure control valves
    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B2013/0412—Valve members; Fluid interconnections therefor with three positions
    • 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • 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
    • F15B2211/40—Flow control
    • F15B2211/465—Flow control with pressure compensation

Definitions

  • the present invention relates to a flow regulator.
  • FIG. 1 represents a flow servo regulator of known type. It comprises a single-effect distribution drawer 200 movable in translation by the action of an electromagnet 201; a spring 202 balances the action of the electromagnet.
  • This drawer opens and / or closes the conduit 211 while the conduit 212 is connected directly to a hydraulic receiver (cylinder for example) by the orifices marked A and B.
  • a hydrostatic compensator for pressure variations comprising a piston 204 whose sections opposite 204A, 204B are hydraulically connected to the conduits 211 and 212, and a spring 205, complete the device.
  • Such a servo regulator in principle gives a substantially constant flow whatever the pressure variations due to the load of the receiver. The current in the magnet indeed determines the position of the slide, therefore fixes the value of the pressure losses and consequently that of the flow.
  • An object of the present invention is to provide a reliable flow servo regulator, compact, low consumption and high precision.
  • the invention also relates to a hydraulic flow servo regulator of the type comprising a slide movable in translation in a cavity of a body and ensuring by its movement on the one hand the control of the direction of flow of the fluid and on the other hand -a flow regulation of said fluid using a pressure compensator, so that a given position of the drawer corresponds to a value of the flow in the pipe considered, characterized in that it comprises means for ensuring a translation of the amplitude drawer proportional to the angular value of rotation of the shaft of a digital motor assembly, therefore to define a priority flow in a supply sesn such that it is proportional to the angular value of rotation of the tree of control motor.
  • FIGS. 2 to 3 represent three exemplary embodiments of a double-acting servo-regulator making it possible to thus define in a single device the direction control (distribution function) and the flow regulation.
  • the hydraulic compensation chambers 231 and 232, actuating the pistons 233 and 234 provide compensation for variations in pressure regardless of the direction of passage of the hydraulic fluid.
  • the advantages of the flow regulators according to the invention are the absence of hysteresis (other than that linked to the compensation system which is conventional in all flow regulators), the fidelity of the device, the small footprint and the low consumption.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Flow Control (AREA)
EP84400328A 1983-02-17 1984-02-16 Servostromregler Withdrawn EP0117209A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8302575A FR2541391B1 (fr) 1983-02-17 1983-02-17 Dispositif de distribution hydraulique proportionnelle et application a un distributeur hydraulique, a un limiteur de pression, a un regulateur de debit et a une machine hydraulique
FR8302575 1983-02-17
FR8310025 1983-06-17
FR8310025A FR2547664B1 (fr) 1983-06-17 1983-06-17 Servoregulateur de debit

Publications (1)

Publication Number Publication Date
EP0117209A1 true EP0117209A1 (de) 1984-08-29

Family

ID=26223291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84400328A Withdrawn EP0117209A1 (de) 1983-02-17 1984-02-16 Servostromregler

Country Status (1)

Country Link
EP (1) EP0117209A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160201813A1 (en) * 2012-12-31 2016-07-14 Vanderbilt University Spool and body architectures for three-position directional control valves

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488030A (en) * 1966-08-17 1970-01-06 Halliburton Co Electrical motor operated valve
US3596677A (en) * 1969-01-13 1971-08-03 Rex Chainbelt Inc Remotely operable pressure compensated flow control valve
FR2340494A1 (fr) * 1976-02-03 1977-09-02 Frieseke & Hoepfner Gmbh Distributeur electro-hydraulique
GB2002880A (en) * 1977-08-17 1979-02-28 Idra Pressen Gmbh Valve for controlling pressure medium
EP0088017A2 (de) * 1982-02-26 1983-09-07 COMPAGNIE PARISIENNE D'OUTILLAGE A AIR COMPRIME Société anonyme dite: Hydraulisches Wegeschieberventil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488030A (en) * 1966-08-17 1970-01-06 Halliburton Co Electrical motor operated valve
US3596677A (en) * 1969-01-13 1971-08-03 Rex Chainbelt Inc Remotely operable pressure compensated flow control valve
FR2340494A1 (fr) * 1976-02-03 1977-09-02 Frieseke & Hoepfner Gmbh Distributeur electro-hydraulique
GB2002880A (en) * 1977-08-17 1979-02-28 Idra Pressen Gmbh Valve for controlling pressure medium
EP0088017A2 (de) * 1982-02-26 1983-09-07 COMPAGNIE PARISIENNE D'OUTILLAGE A AIR COMPRIME Société anonyme dite: Hydraulisches Wegeschieberventil

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160201813A1 (en) * 2012-12-31 2016-07-14 Vanderbilt University Spool and body architectures for three-position directional control valves
US9803758B2 (en) * 2012-12-31 2017-10-31 Vanderbilt University Spool and body architectures for three-position directional control valves
US10788133B2 (en) 2012-12-31 2020-09-29 Vanderbilt University Spool and body architectures for three-position directional control valves

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19850801

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BOUVERET, CLAUDE