GB1219064A - Fluid flow difference sensor and shutoff apparatus - Google Patents

Fluid flow difference sensor and shutoff apparatus

Info

Publication number
GB1219064A
GB1219064A GB4362869A GB4362869A GB1219064A GB 1219064 A GB1219064 A GB 1219064A GB 4362869 A GB4362869 A GB 4362869A GB 4362869 A GB4362869 A GB 4362869A GB 1219064 A GB1219064 A GB 1219064A
Authority
GB
United Kingdom
Prior art keywords
piston
lever
conduit
force generating
generating means
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
GB4362869A
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.)
Bell Aerospace Corp
Original Assignee
Bell Aerospace Corp
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 Bell Aerospace Corp filed Critical Bell Aerospace Corp
Publication of GB1219064A publication Critical patent/GB1219064A/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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/005—Leakage; Spillage; Hose burst
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/20—Excess-flow valves
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2101/00—Uses or applications of pigs or moles
    • F16L2101/30—Inspecting, measuring or testing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Flow Control (AREA)
  • Measuring Volume Flow (AREA)

Abstract

1,219,064. Valves. BELL AEROSPACE CORP. 3 Sept., 1969 [17 Oct., 1968], No. 43628/69. Heading F2V. A control valve cuts off the supply of fluid to a load under fault conditions when the rates of flow to and from the load differ materially. The valve has a force generating means in both feed conduit 31 and return conduit 42, which means normally act oppositely on levers 39, 45 to maintain closure member 55 off seat 56. When the flow rate through conduit 40 drops sufficiently to cause lever 39 to be pivoted clockwise, the valve closes. The force generating means consist of fixed restrictions, formed by projections 38, 44 on the casing co-operating with movable pistons 36, 43, which produce pressure drops across, and thereby forces on, the pistons in proportion to the flow rates. Piston 36 also has a spring loaded ball closure 51 which forms a variable restriction to improve the linearity of the device (see Fig. 2a, not shown). In a modification (Figs. 3 and 4, not shown) fixed orifice (68) are incorporated in piston type variable restrictors (69) which are mounted in a casing remote from the closure member (75) which is actuated by a piston (76) acting on a lever (79) in opposition to a piston (101) which acts on a lever (93). A dash pot (81) damps movement of the piston (76).
GB4362869A 1968-10-17 1969-09-03 Fluid flow difference sensor and shutoff apparatus Expired GB1219064A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76825168A 1968-10-17 1968-10-17

Publications (1)

Publication Number Publication Date
GB1219064A true GB1219064A (en) 1971-01-13

Family

ID=25081952

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4362869A Expired GB1219064A (en) 1968-10-17 1969-09-03 Fluid flow difference sensor and shutoff apparatus

Country Status (3)

Country Link
DE (1) DE1947318A1 (en)
FR (1) FR2020879B1 (en)
GB (1) GB1219064A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015091866A1 (en) * 2013-12-20 2015-06-25 Mincon International Limited Flow monitoring system
CN114923514A (en) * 2022-04-21 2022-08-19 广西壮族自治区水利科学研究院 Real-time monitoring equipment for ecological flow discharged from water conservancy and hydropower engineering

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502102A (en) * 1967-07-26 1970-03-24 Bell Aerospace Corp Flow operated shutoff valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015091866A1 (en) * 2013-12-20 2015-06-25 Mincon International Limited Flow monitoring system
CN114923514A (en) * 2022-04-21 2022-08-19 广西壮族自治区水利科学研究院 Real-time monitoring equipment for ecological flow discharged from water conservancy and hydropower engineering
CN114923514B (en) * 2022-04-21 2024-01-26 广西壮族自治区水利科学研究院 Water conservancy and hydropower engineering let-down ecological flow real-time monitoring equipment

Also Published As

Publication number Publication date
DE1947318A1 (en) 1970-04-30
FR2020879A1 (en) 1970-07-17
FR2020879B1 (en) 1974-03-15

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