CA1175564A - Valve position indicator and method - Google Patents

Valve position indicator and method

Info

Publication number
CA1175564A
CA1175564A CA000392701A CA392701A CA1175564A CA 1175564 A CA1175564 A CA 1175564A CA 000392701 A CA000392701 A CA 000392701A CA 392701 A CA392701 A CA 392701A CA 1175564 A CA1175564 A CA 1175564A
Authority
CA
Canada
Prior art keywords
hydraulic
fluid
valve
flow
sliding gate
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
CA000392701A
Other languages
English (en)
French (fr)
Inventor
Patrick D. King
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.)
Flo Con Systems Inc
Original Assignee
Flo Con Systems Inc
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 Flo Con Systems Inc filed Critical Flo Con Systems Inc
Application granted granted Critical
Publication of CA1175564A publication Critical patent/CA1175564A/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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • F15B15/2838—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT with out using position sensors, e.g. by volume flow measurement or pump speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/38—Means for operating the sliding gate

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Control Of Position Or Direction (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Servomotors (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
CA000392701A 1980-12-31 1981-12-18 Valve position indicator and method Expired CA1175564A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22193380A 1980-12-31 1980-12-31
US221,933 1980-12-31

Publications (1)

Publication Number Publication Date
CA1175564A true CA1175564A (en) 1984-10-02

Family

ID=22830029

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000392701A Expired CA1175564A (en) 1980-12-31 1981-12-18 Valve position indicator and method

Country Status (9)

Country Link
JP (1) JPS57171182A (it)
BR (1) BR8108235A (it)
CA (1) CA1175564A (it)
DE (1) DE3151740A1 (it)
ES (1) ES8301020A1 (it)
FR (1) FR2497338A1 (it)
GB (1) GB2094481A (it)
IT (1) IT8168726A0 (it)
MX (1) MX155514A (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4429019C1 (de) * 1994-08-16 1995-12-21 Pleiger Maschf Paul Vorrichtung für die Stellungsanzeige bei einer hydraulisch mittels einer Kolben-/Zylinderanordnung betätigbaren Armatur
EP2567102B1 (en) * 2010-05-06 2018-10-24 SCANCON Encoders A/S Method and device to determine the position of a piston in a hydraulic or a pneumatic cylinder
AU2012217996B2 (en) 2011-02-16 2016-08-04 Crown Equipment Corporation Materials handling vehicle estimating a speed of a movable assembly from a lift motor speed
JP7353808B2 (ja) * 2019-06-13 2023-10-02 株式会社東芝 弁開度検知装置、方法及びプログラム

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1251225A (it) * 1968-09-04 1971-10-27
NO123671B (it) * 1968-12-30 1971-12-27 Norsk Hydro Verksteder A S
GB1275844A (en) * 1970-04-30 1972-05-24 Mitsubishi Jukoyo Kabushiki Ka Flow meter type valve-position indicator
DE2759263C3 (de) * 1977-12-31 1981-02-19 Kracht Pumpen- Und Motorenfabrik Gmbh & Co Kg, 5980 Werdohl Überwachungssystem für hydraulisch betriebene Armaturen

Also Published As

Publication number Publication date
MX155514A (es) 1988-03-18
DE3151740A1 (de) 1982-09-16
ES508456A0 (es) 1982-11-01
ES8301020A1 (es) 1982-11-01
FR2497338A1 (fr) 1982-07-02
BR8108235A (pt) 1982-10-05
JPS57171182A (en) 1982-10-21
GB2094481A (en) 1982-09-15
IT8168726A0 (it) 1981-12-30

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Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry