GB806750A - A device for detecting a given fall of level of a liquid contained in a tank - Google Patents

A device for detecting a given fall of level of a liquid contained in a tank

Info

Publication number
GB806750A
GB806750A GB5133/56A GB513356A GB806750A GB 806750 A GB806750 A GB 806750A GB 5133/56 A GB5133/56 A GB 5133/56A GB 513356 A GB513356 A GB 513356A GB 806750 A GB806750 A GB 806750A
Authority
GB
United Kingdom
Prior art keywords
chamber
tank
diaphragm
pressure
pump
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
GB5133/56A
Inventor
David Thomas Anthony Miller
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries 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 Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB5133/56A priority Critical patent/GB806750A/en
Publication of GB806750A publication Critical patent/GB806750A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D37/00—Arrangements in connection with fuel supply for power plant
    • B64D37/005—Accessories not provided for in the groups B64D37/02 - B64D37/28

Abstract

806,750. Centrifugal pumps. LUCAS (INDUSTRIES) Ltd., J. Feb. 19, 1957 [Feb. 20, 1956], No. 5133/56. Class 110 (1). [Also in Group XVIII] A device for detecting low-level conditions in a tank c which may be a fuel tank on an aircraft comprises a shallow pressure chamber a having an inlet and outlet for connection to a pipe system b through which a liquid stream is continuously circulated by a pump, which may be the fuel feed pump of the aircraft. One side of the chamber is formed by a flexible diaphragm d which actuates a valve e serving to close the entrance of a pipe f when this becomes uncovered due, for example, to the surging of fuel in the tank, to prevent air being sucked into a centrifugal boost pump g supplying the fuel feed pump. Movement of the diaphragm may also actuate a low level alarm signal or set in motion a pump for refilling the tank. The operating pressure under the diaphragm is determined by a pressure-modifier serially connected in the liquid stream with the chamber a and comprising a body h having a passage i therethrough open to the liquid in which the modifier and the chamber a are immersed. So long as the parts a, h remain wholly immersed the kinetic energy of the stream flowing across the gap i is absorbed as it encounters the liquid in the gap so that the pressure in chamber a is insufficient to lift the diaphragm d. If the level drops below the part h the energy of the stream entering the chamber a is sufficient to exert the pressure on the diaphragm required to lift it to close the pipe f or to actuate the alarm signal or the level control means referred to above.
GB5133/56A 1956-02-20 1956-02-20 A device for detecting a given fall of level of a liquid contained in a tank Expired GB806750A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5133/56A GB806750A (en) 1956-02-20 1956-02-20 A device for detecting a given fall of level of a liquid contained in a tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5133/56A GB806750A (en) 1956-02-20 1956-02-20 A device for detecting a given fall of level of a liquid contained in a tank

Publications (1)

Publication Number Publication Date
GB806750A true GB806750A (en) 1958-12-31

Family

ID=9790330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5133/56A Expired GB806750A (en) 1956-02-20 1956-02-20 A device for detecting a given fall of level of a liquid contained in a tank

Country Status (1)

Country Link
GB (1) GB806750A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4252017A (en) * 1979-08-02 1981-02-24 Zaslavsky Leonid I Apparatus for monitoring fluid level in a vessel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4252017A (en) * 1979-08-02 1981-02-24 Zaslavsky Leonid I Apparatus for monitoring fluid level in a vessel

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