GB1045824A - Improvements in or relating to apparatus for controlling the rate of flow of fluid in a number of streams - Google Patents

Improvements in or relating to apparatus for controlling the rate of flow of fluid in a number of streams

Info

Publication number
GB1045824A
GB1045824A GB1342565A GB1342565A GB1045824A GB 1045824 A GB1045824 A GB 1045824A GB 1342565 A GB1342565 A GB 1342565A GB 1342565 A GB1342565 A GB 1342565A GB 1045824 A GB1045824 A GB 1045824A
Authority
GB
United Kingdom
Prior art keywords
flow
signal
streams
stream
rate
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
GB1342565A
Inventor
Richard Neil Moore
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.)
Schneider Electric Systems UK Ltd
Original Assignee
Foxboro Yoxall Ltd
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 Foxboro Yoxall Ltd filed Critical Foxboro Yoxall Ltd
Priority to GB1342565A priority Critical patent/GB1045824A/en
Publication of GB1045824A publication Critical patent/GB1045824A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
    • G05D11/131—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components
    • G05D11/132—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components by controlling the flow of the individual components

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Measuring Volume Flow (AREA)

Abstract

1,045,824. Automatic flow control. FOXBORO-YOXALL Ltd. March 30, 1965, No. 13425/65. Heading G3R. [Also in Division G1] The rates of flow of fluid in a number of parallel streams 7 are controlled (and kept in a given ratio to each other) through a feedback control system including a ratio comparator 9 for each stream which compares electrical pulse signals related to the rate of flow in the stream with electrical pacing pulses to produce an error signal, a flow controller 4 for each stream responsive to the associated error signal, and means for producing the pacing signal under the control of a resultant of all the error signals associated with the several streams and of an independently variable bias signal, the means providing the bias signal being arranged so as normally to tend to accelerate the digital pacing signal and thereby to maintain a maximum rate of flow in at least one of the streams. The pacing signal may be produced by a mast oscillator 17, Fig. 2 (not shown), under the control of the resultant signal mentioned above, or, as shown in Fig. 1, by a flow meter 20 in a primary stream 16 which is joined by the secondary streams 7, the rate of flow in the primary stream 16 being controlled in accordance with this same resultant signal.
GB1342565A 1965-03-30 1965-03-30 Improvements in or relating to apparatus for controlling the rate of flow of fluid in a number of streams Expired GB1045824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1342565A GB1045824A (en) 1965-03-30 1965-03-30 Improvements in or relating to apparatus for controlling the rate of flow of fluid in a number of streams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1342565A GB1045824A (en) 1965-03-30 1965-03-30 Improvements in or relating to apparatus for controlling the rate of flow of fluid in a number of streams

Publications (1)

Publication Number Publication Date
GB1045824A true GB1045824A (en) 1966-10-19

Family

ID=10022735

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1342565A Expired GB1045824A (en) 1965-03-30 1965-03-30 Improvements in or relating to apparatus for controlling the rate of flow of fluid in a number of streams

Country Status (1)

Country Link
GB (1) GB1045824A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1648124B1 (en) * 1967-01-05 1972-03-09 Schlumberger Instrumentation SELF-CONTROLLING FLOW METER
EP0426819A1 (en) * 1989-05-23 1991-05-15 The Coca-Cola Company Multiflavor beverage dispenser control valve assembly and ratio control system therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1648124B1 (en) * 1967-01-05 1972-03-09 Schlumberger Instrumentation SELF-CONTROLLING FLOW METER
EP0426819A1 (en) * 1989-05-23 1991-05-15 The Coca-Cola Company Multiflavor beverage dispenser control valve assembly and ratio control system therefor
EP0426819A4 (en) * 1989-05-23 1992-04-01 The Coca-Cola Company Multiflavor beverage dispenser control valve assembly and ratio control system therefor

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