EP0041247A3 - Pilot-operated device for load-independent flow control - Google Patents

Pilot-operated device for load-independent flow control Download PDF

Info

Publication number
EP0041247A3
EP0041247A3 EP81104114A EP81104114A EP0041247A3 EP 0041247 A3 EP0041247 A3 EP 0041247A3 EP 81104114 A EP81104114 A EP 81104114A EP 81104114 A EP81104114 A EP 81104114A EP 0041247 A3 EP0041247 A3 EP 0041247A3
Authority
EP
European Patent Office
Prior art keywords
pilot
load
flow control
operated device
independent flow
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.)
Granted
Application number
EP81104114A
Other languages
German (de)
Other versions
EP0041247A2 (en
EP0041247B1 (en
Inventor
Yung-Hsiang Lu
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0041247A2 publication Critical patent/EP0041247A2/en
Publication of EP0041247A3 publication Critical patent/EP0041247A3/en
Application granted granted Critical
Publication of EP0041247B1 publication Critical patent/EP0041247B1/en
Expired 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
    • 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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/03—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type with electrical control means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Fluid-Driven Valves (AREA)
EP81104114A 1980-06-03 1981-05-29 Pilot-operated device for load-independent flow control Expired EP0041247B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803020918 DE3020918A1 (en) 1980-06-03 1980-06-03 CONTROLLED DEVICE FOR LOAD-INDEPENDENT VOLUME FLOW CONTROL
DE3020918 1980-06-03

Publications (3)

Publication Number Publication Date
EP0041247A2 EP0041247A2 (en) 1981-12-09
EP0041247A3 true EP0041247A3 (en) 1982-05-26
EP0041247B1 EP0041247B1 (en) 1985-11-13

Family

ID=6103791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104114A Expired EP0041247B1 (en) 1980-06-03 1981-05-29 Pilot-operated device for load-independent flow control

Country Status (2)

Country Link
EP (1) EP0041247B1 (en)
DE (2) DE3020918A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3040521A1 (en) * 1980-10-28 1982-05-27 Robert Bosch Gmbh, 7000 Stuttgart Load independent control for volumetric flow - has valve piston as volumetric flow sensor with spring and flow pressure control and connection to path detector
DE3135855A1 (en) * 1981-09-10 1983-03-24 Backé, Wolfgang, Prof.Dr.-Ing., 5100 Aachen DEVICE FOR LOAD-INDEPENDENT LIFT AND ANGLE CONTROL PROPORTIONAL INPUT SIGNAL
DE3305093A1 (en) * 1983-02-14 1984-08-16 Herion-Werke Kg, 7012 Fellbach Flow-rate valve
EP0150308A3 (en) * 1984-01-30 1986-10-01 Trw Inc. Apparatus for controlling fluid flow
JPS61105381A (en) * 1984-10-29 1986-05-23 Kawasaki Heavy Ind Ltd Electromagnetic flow control valve
DE3532591A1 (en) * 1985-09-12 1987-03-19 Rexroth Mannesmann Gmbh HYDRAULIC DEVICE, IN PARTICULAR 2-WAY PROPORTIONAL THROTTLE VALVE
DE3733642A1 (en) * 1987-10-05 1989-04-20 Daimler Benz Ag Quantity control valve
AT393301B (en) * 1989-08-30 1991-09-25 Woutschuk Alfred Control device for a hydraulic pressure valve
DE29713293U1 (en) 1997-07-25 1997-10-23 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Solenoid operated drain valve
US9476517B2 (en) 2014-02-28 2016-10-25 Mks Instruments, Inc. Pilot valve structures and mass flow controllers

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044480A (en) * 1956-11-16 1962-07-17 Lee Shih-Ying Fluid flow controller
DE2149915A1 (en) * 1970-10-22 1972-04-27 Ite Imperial Corp Proportional flow controller
DE2139119A1 (en) * 1971-08-04 1973-02-15 Herion Werke Kg FLOW CONTROL VALVE
DE2428287A1 (en) * 1973-06-26 1975-01-16 Beringer Hydraulik Gmbh HYDRAULIC ACTUATOR WITH CONTROL VALVE
DE2439030A1 (en) * 1973-09-26 1975-03-27 Sanders Associates Inc Two stage hydraulic flow regulating valve - flow sensing valve located in output line provides feedback compensating signals for flapper auxiliary control pistons
DE2506923A1 (en) * 1975-02-19 1976-09-02 Heilmeier & Weinlein Valve device for pressure limiting and idling - has operating valve closing element controlling flow between pressure chamber and return
EP0002446A1 (en) * 1977-12-09 1979-06-27 Mannesmann Rexroth GmbH Electrically controlled four way valve functioning independently from the load
EP0023416A2 (en) * 1979-07-26 1981-02-04 Vickers Incorporated Hydraulic valve

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1303132B (en) * 1971-06-16 Robert Bosch Gmbh
DE1142277B (en) * 1953-12-18 1963-01-10 Siam Electro-hydraulic control device for a double-acting servo motor
US3088283A (en) * 1959-06-22 1963-05-07 Dba Sa Hydraulic systems
DE1498284B2 (en) * 1965-05-08 1970-12-23 Bopp & Reuther Gmbh, 6800 Mannheim Shut-off valve for a liquid flow meter
GB1335042A (en) * 1970-01-05 1973-10-24 Sperry Rand Ltd Hydraulic actuator controls
DE2056461C3 (en) * 1970-11-17 1979-04-26 Robert Bosch Gmbh, 7000 Stuttgart Valve for limiting a pressure medium flow
JPS5270283A (en) * 1975-12-08 1977-06-11 Deere & Co Fluid circuit
DD136524A5 (en) * 1977-12-16 1979-07-11 Technomatic Ag SAFETY VALVE

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044480A (en) * 1956-11-16 1962-07-17 Lee Shih-Ying Fluid flow controller
DE2149915A1 (en) * 1970-10-22 1972-04-27 Ite Imperial Corp Proportional flow controller
DE2139119A1 (en) * 1971-08-04 1973-02-15 Herion Werke Kg FLOW CONTROL VALVE
DE2428287A1 (en) * 1973-06-26 1975-01-16 Beringer Hydraulik Gmbh HYDRAULIC ACTUATOR WITH CONTROL VALVE
DE2439030A1 (en) * 1973-09-26 1975-03-27 Sanders Associates Inc Two stage hydraulic flow regulating valve - flow sensing valve located in output line provides feedback compensating signals for flapper auxiliary control pistons
DE2506923A1 (en) * 1975-02-19 1976-09-02 Heilmeier & Weinlein Valve device for pressure limiting and idling - has operating valve closing element controlling flow between pressure chamber and return
EP0002446A1 (en) * 1977-12-09 1979-06-27 Mannesmann Rexroth GmbH Electrically controlled four way valve functioning independently from the load
EP0023416A2 (en) * 1979-07-26 1981-02-04 Vickers Incorporated Hydraulic valve

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Automatik, Band 15, Juni 1970, Heidelberg (DE) B. DAHM: "Hydraulische Stellglieder und Servomechanismen in Steuerungen und Regelungen (III)" seiten 208-216 * seite 210, rechte spalte, zeile 32 - seite 211, linke spalte, zeile 8; abbildung 22 * *
Olhydraulik und Pneumatik, Band 20, Oktober 1976 Mainz (DE) R. BARTHOLOMAUS: "Neue Proportionalventile aus Standardbauelementen", seiten 667-669 * abschnitt 4; abbildung 10 * *

Also Published As

Publication number Publication date
DE3172883D1 (en) 1985-12-19
DE3020918A1 (en) 1981-12-10
EP0041247A2 (en) 1981-12-09
EP0041247B1 (en) 1985-11-13

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