GB2011997B - Monitoring system for pressurised liquid operated members - Google Patents

Monitoring system for pressurised liquid operated members

Info

Publication number
GB2011997B
GB2011997B GB7849814A GB7849814A GB2011997B GB 2011997 B GB2011997 B GB 2011997B GB 7849814 A GB7849814 A GB 7849814A GB 7849814 A GB7849814 A GB 7849814A GB 2011997 B GB2011997 B GB 2011997B
Authority
GB
United Kingdom
Prior art keywords
monitoring system
pressurised liquid
magnitude
operated members
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
GB7849814A
Other versions
GB2011997A (en
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.)
Kracht Pumpen und Motorenfabrik GmbH and Co KG
Original Assignee
Kracht Pumpen und Motorenfabrik GmbH and Co KG
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 Kracht Pumpen und Motorenfabrik GmbH and Co KG filed Critical Kracht Pumpen und Motorenfabrik GmbH and Co KG
Publication of GB2011997A publication Critical patent/GB2011997A/en
Application granted granted Critical
Publication of GB2011997B publication Critical patent/GB2011997B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/005—Electrical or magnetic means for measuring fluid parameters
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Measuring Volume Flow (AREA)
  • Flow Control (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

A drive and monitoring system for a pressurised liquid driven member (10) comprising a control valve (12) for leading pressurised operating liquid through a pair of conduits (4, 6) to a device (8) for driving the member (10), each conduit including a volumetric meter (32, 34) of the kind by which it is possible to measure the magnitude and direction of flow of liquid therethrough in discrete partial amounts. The meters (32, 34) include means to produce electrical pulses in response to each partial amount. The electrical pulses are then evaluated computatively with respect to magnitude and direction of flow through the respective meters. <IMAGE>
GB7849814A 1977-12-31 1978-12-22 Monitoring system for pressurised liquid operated members Expired GB2011997B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772759263 DE2759263C3 (en) 1977-12-31 1977-12-31 Monitoring system for hydraulically operated fittings

Publications (2)

Publication Number Publication Date
GB2011997A GB2011997A (en) 1979-07-18
GB2011997B true GB2011997B (en) 1982-04-07

Family

ID=6027939

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7849814A Expired GB2011997B (en) 1977-12-31 1978-12-22 Monitoring system for pressurised liquid operated members

Country Status (2)

Country Link
DE (1) DE2759263C3 (en)
GB (1) GB2011997B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6725731B2 (en) 2000-03-08 2004-04-27 Rosemount Inc. Bi-directional differential pressure flow sensor
US6789458B2 (en) 2000-03-08 2004-09-14 Rosemount Inc. System for controlling hydraulic actuator
US6817252B2 (en) 2000-03-08 2004-11-16 Rosemount Inc. Piston position measuring device

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926862C2 (en) 1979-07-03 1984-01-26 Zimmermann & Jansen GmbH, 5160 Düren Device for the exact position feedback of a working piston in a hydraulic working cylinder that can be acted upon on both sides and use of this device for a method for controlling the pouring slide of a casting vessel for metallurgical castings
DE3038283C2 (en) * 1980-10-10 1985-04-11 Kracht Pumpen- Und Motorenfabrik Gmbh & Co Kg, 5980 Werdohl Monitoring system for hydraulic lines and / or drive devices
MX155514A (en) * 1980-12-31 1988-03-18 Flo Con Syst IMPROVEMENTS IN THE SYSTEM TO CONTROL THE POSITION OF A SLIDING GATE VALVE
DE3116645C2 (en) * 1981-04-27 1985-11-21 Paul Pleiger Maschinenfabrik, 5810 Witten Device for determining the respective position of the working piston of a hydraulic servomotor
FR2614610B1 (en) * 1987-04-29 1991-03-29 Meca Ste Montalbana Const SYSTEM FOR OPERATING AND CONTROLLING A HYDRAULIC CRANE WITH ARTICULATED ARMS
FR2614611B1 (en) * 1987-04-29 1991-02-08 Meca Ste Montalbana Const DEVICE FOR MEASURING THE GEOMETRIC POSITION OF ARTICULATED ARMS OF A MOBILE CRANE
DE9411939U1 (en) * 1994-07-22 1994-09-15 Paul Pleiger Maschinenfabrik GmbH & Co KG, 58452 Witten Position indicator for hydraulically operated fittings
DE29920780U1 (en) 1999-11-26 2000-02-24 Küpper-Weisser GmbH, 78199 Bräunlingen Device for measuring the residual current for hydraulic drives, in particular for vehicle hydraulic systems
WO2001066956A2 (en) * 2000-03-08 2001-09-13 Rosemount Inc. System for controlling hydraulic actuator
DE102012222074A1 (en) * 2012-12-03 2014-06-05 Pleiger Maschinenbau Gmbh & Co. Kg METHOD AND DEVICE FOR INDICATING THE POSITION OF HYDRAULICALLY ACTUATED VALVES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6725731B2 (en) 2000-03-08 2004-04-27 Rosemount Inc. Bi-directional differential pressure flow sensor
US6789458B2 (en) 2000-03-08 2004-09-14 Rosemount Inc. System for controlling hydraulic actuator
US6817252B2 (en) 2000-03-08 2004-11-16 Rosemount Inc. Piston position measuring device

Also Published As

Publication number Publication date
DE2759263B2 (en) 1980-06-12
DE2759263C3 (en) 1981-02-19
GB2011997A (en) 1979-07-18
DE2759263A1 (en) 1979-07-05

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee