GB901226A - Improvements in fluid flow controllers - Google Patents

Improvements in fluid flow controllers

Info

Publication number
GB901226A
GB901226A GB161859A GB161859A GB901226A GB 901226 A GB901226 A GB 901226A GB 161859 A GB161859 A GB 161859A GB 161859 A GB161859 A GB 161859A GB 901226 A GB901226 A GB 901226A
Authority
GB
United Kingdom
Prior art keywords
valve
flow
control
meniscus
jan
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
GB161859A
Inventor
Fritz Arthur Ernest Porter
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.)
Council of Scientific and Industrial Research CSIR
Original Assignee
Council of Scientific and Industrial Research CSIR
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 Council of Scientific and Industrial Research CSIR filed Critical Council of Scientific and Industrial Research CSIR
Priority to GB161859A priority Critical patent/GB901226A/en
Publication of GB901226A publication Critical patent/GB901226A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Flow Control (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

901,226. Automatic fluid flow control systems. COUNCIL FOR SCIENTIFIC & INDUSTRIAL RESEARCH. Jan. 15, 1960 [Jan. 16, 1959], No. 1618/59. Class 38 (4). [Also in Group XXIX] A controller for the automatic control of the flow of fluids comprises an electromagnetic control valve 1 in series with the outlet 3 of which is connected a calibrated constriction 2 across which are connected the limbs 4, 5 of a U-tube containing an opaque fluid, the meniscus 8 of the liquid in limb 4 being located between a light source 7 and a photo-cell 6 connected in the control circuit of the valve 1. In operation, changes in the rate of flow through the constriction 2 produce changes in the level of the meniscus 8 and hence variation in the output current of the photo-cell 6, which output current energizes electromagnetic means for controlling the displacement of a diaphragm in the valve 1, thereby controlling the flow through the valve at the desired mean rate. The valve control circuit may include a transistor amplifier (Fig. 3, not shown).
GB161859A 1959-01-16 1959-01-16 Improvements in fluid flow controllers Expired GB901226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB161859A GB901226A (en) 1959-01-16 1959-01-16 Improvements in fluid flow controllers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB161859A GB901226A (en) 1959-01-16 1959-01-16 Improvements in fluid flow controllers

Publications (1)

Publication Number Publication Date
GB901226A true GB901226A (en) 1962-07-18

Family

ID=9725064

Family Applications (1)

Application Number Title Priority Date Filing Date
GB161859A Expired GB901226A (en) 1959-01-16 1959-01-16 Improvements in fluid flow controllers

Country Status (1)

Country Link
GB (1) GB901226A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131130A (en) * 1982-11-12 1984-06-13 Kiwi Coders Corp Piezoelectric fluid control device
GB2191564A (en) * 1986-06-13 1987-12-16 Nuovo Pignone Spa Gas regulator-modulater for wall boilers
GB2256698A (en) * 1991-06-15 1992-12-16 Carver & Co Flow control valve
GB2301457A (en) * 1995-03-21 1996-12-04 Gerald John Haines Apparatus for detecting and monitoring fluid flow

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131130A (en) * 1982-11-12 1984-06-13 Kiwi Coders Corp Piezoelectric fluid control device
GB2191564A (en) * 1986-06-13 1987-12-16 Nuovo Pignone Spa Gas regulator-modulater for wall boilers
GB2256698A (en) * 1991-06-15 1992-12-16 Carver & Co Flow control valve
GB2256698B (en) * 1991-06-15 1995-01-18 Carver & Co Flow control valve
GB2301457A (en) * 1995-03-21 1996-12-04 Gerald John Haines Apparatus for detecting and monitoring fluid flow

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