DE3172883D1 - Pilot-operated device for load-independent flow control - Google Patents

Pilot-operated device for load-independent flow control

Info

Publication number
DE3172883D1
DE3172883D1 DE8181104114T DE3172883T DE3172883D1 DE 3172883 D1 DE3172883 D1 DE 3172883D1 DE 8181104114 T DE8181104114 T DE 8181104114T DE 3172883 T DE3172883 T DE 3172883T DE 3172883 D1 DE3172883 D1 DE 3172883D1
Authority
DE
Germany
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.)
Expired
Application number
DE8181104114T
Other languages
German (de)
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
Priority to DE8181104114T priority Critical patent/DE3172883D1/en
Application granted granted Critical
Publication of DE3172883D1 publication Critical patent/DE3172883D1/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
DE8181104114T 1980-06-03 1981-05-29 Pilot-operated device for load-independent flow control Expired DE3172883D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8181104114T DE3172883D1 (en) 1980-06-03 1981-05-29 Pilot-operated device for load-independent flow control

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
DE8181104114T DE3172883D1 (en) 1980-06-03 1981-05-29 Pilot-operated device for load-independent flow control

Publications (1)

Publication Number Publication Date
DE3172883D1 true DE3172883D1 (en) 1985-12-19

Family

ID=6103791

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19803020918 Withdrawn DE3020918A1 (en) 1980-06-03 1980-06-03 CONTROLLED DEVICE FOR LOAD-INDEPENDENT VOLUME FLOW CONTROL
DE8181104114T Expired DE3172883D1 (en) 1980-06-03 1981-05-29 Pilot-operated device for load-independent flow control

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19803020918 Withdrawn DE3020918A1 (en) 1980-06-03 1980-06-03 CONTROLLED DEVICE FOR LOAD-INDEPENDENT VOLUME 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 Solenoid operated drain valve
US9476517B2 (en) 2014-02-28 2016-10-25 Mks Instruments, Inc. Pilot valve structures and mass flow controllers

Family Cites Families (16)

* 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
US3044480A (en) * 1956-11-16 1962-07-17 Lee Shih-Ying Fluid flow controller
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
US3667722A (en) * 1970-10-22 1972-06-06 Ite Imperial Corp Proportional valve
DE2056461C3 (en) * 1970-11-17 1979-04-26 Robert Bosch Gmbh, 7000 Stuttgart Valve for limiting a pressure medium flow
DE2139119A1 (en) * 1971-08-04 1973-02-15 Herion Werke Kg FLOW CONTROL VALVE
CH556974A (en) * 1973-06-26 1974-12-13 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
DE2506923C3 (en) * 1975-02-19 1983-01-27 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 8000 München Valve device
JPS5270283A (en) * 1975-12-08 1977-06-11 Deere & Co Fluid circuit
DE2754878A1 (en) * 1977-12-09 1979-06-13 Rexroth Gmbh G L LOAD INDEPENDENT ELECTRICALLY CONTROLLED DIRECTIONAL VALVE
DD136524A5 (en) * 1977-12-16 1979-07-11 Technomatic Ag SAFETY VALVE
US4411289A (en) * 1979-07-26 1983-10-25 Sperry Limited Hydraulic valve

Also Published As

Publication number Publication date
EP0041247A2 (en) 1981-12-09
EP0041247B1 (en) 1985-11-13
EP0041247A3 (en) 1982-05-26
DE3020918A1 (en) 1981-12-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee