GB899681A - Improvements relating to the control of the ratio of the flow rates of fuel and oxidant to a combustion chamber - Google Patents

Improvements relating to the control of the ratio of the flow rates of fuel and oxidant to a combustion chamber

Info

Publication number
GB899681A
GB899681A GB1488359A GB1488359A GB899681A GB 899681 A GB899681 A GB 899681A GB 1488359 A GB1488359 A GB 1488359A GB 1488359 A GB1488359 A GB 1488359A GB 899681 A GB899681 A GB 899681A
Authority
GB
United Kingdom
Prior art keywords
venturi
flow
valve
pipe
meter
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
GB1488359A
Inventor
Reginald Dennis Lowe
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.)
Bristol Siddeley Engines Ltd
Original Assignee
Bristol Siddeley Engines 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 Bristol Siddeley Engines Ltd filed Critical Bristol Siddeley Engines Ltd
Priority to GB1488359A priority Critical patent/GB899681A/en
Publication of GB899681A publication Critical patent/GB899681A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
    • F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
    • F02K9/44—Feeding propellants
    • F02K9/56—Control
    • F02K9/58—Propellant feed valves
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/006—Control of flow ratio involving a first fluid acting on the feeding of a second fluid

Abstract

899,681. Rocket propulsion. BRISTOL SIDDELEY ENGINES Ltd. April 28, 1960 [May 1, 1959], No. 14883/59. Class 110 (3). [Also in Group XXIX] Apparatus for controlling the flow ratio of oxidant and of fuel to a combustion chamber, such as in a rocket motor, comprises flow pipes 3, 4 for leading oxidant and a fuel respectively to the combustion chamber, means 1, 2 in each pipe capable of producing a pressure difference in response to flow therethrough, separate pressure tappings leading from each of the flow paths at a position upstream of the means therein and at a position of reduced pressure produced by the means, a valve-actuating device 9 responsive differentially to the pressure difference for use by each of the means and a valve 7 operable by the valve-actuating device to vary the rate of flow through one of the pipes with respect to the flow through the other pipe, whereby the flow ratio can be maintained substantially constant, the valve-actuating device comprising a housing 12 defining a pair of separate compartments in which pistons 10, 11 are mounted, and a rod 8 connecting at least one of the pistons with the valve. The means 1, 2 as shown in Fig. 1, are in the form of Venturi meters, the opposite sides of the piston 10 being connected by pipes 15, 19 into the Venturi-meter 1, and opposite sides of the piston 11, being connected to the Venturi-meter 2 by a pipe 20 and a connection upstream of the latter meter. The pistons are connected by a common rod 8 which is coupled to a valve 7 located in the fuel pipe 4. In operation, if a variation in flow occurs in the oxidant pipe 3, the pressure difference thereby produced across the Venturi-meter 1 moves the piston 10 and thus adjusts the position of the valve in order to permit more or less fuel through the pipe 4. The flow through the Venturi 1 is initially set by a by-pass 5, 6; alternatively, Venturi-meter 2 may be provided with the by-pass. In a modification, the Venturi-meters, which have fixed throats, may be provided with a spring- loaded throttling device which produces a varying flow characteristic through the Venturi.
GB1488359A 1959-05-01 1959-05-01 Improvements relating to the control of the ratio of the flow rates of fuel and oxidant to a combustion chamber Expired GB899681A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1488359A GB899681A (en) 1959-05-01 1959-05-01 Improvements relating to the control of the ratio of the flow rates of fuel and oxidant to a combustion chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1488359A GB899681A (en) 1959-05-01 1959-05-01 Improvements relating to the control of the ratio of the flow rates of fuel and oxidant to a combustion chamber

Publications (1)

Publication Number Publication Date
GB899681A true GB899681A (en) 1962-06-27

Family

ID=10049215

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1488359A Expired GB899681A (en) 1959-05-01 1959-05-01 Improvements relating to the control of the ratio of the flow rates of fuel and oxidant to a combustion chamber

Country Status (1)

Country Link
GB (1) GB899681A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1256482B (en) * 1963-08-16 1967-12-14 Bristol Siddeley Engines Ltd Control valve for a rocket engine
US3690340A (en) * 1970-03-05 1972-09-12 Anatole J Sipin Fluid proportioning system
GB2128728A (en) * 1982-10-19 1984-05-02 Stordy Combustion Eng Burner control
GB2225091A (en) * 1988-11-18 1990-05-23 Pro Aqua Systems Ltd Flow modulator system for pressure reducing valves

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1256482B (en) * 1963-08-16 1967-12-14 Bristol Siddeley Engines Ltd Control valve for a rocket engine
US3690340A (en) * 1970-03-05 1972-09-12 Anatole J Sipin Fluid proportioning system
GB2128728A (en) * 1982-10-19 1984-05-02 Stordy Combustion Eng Burner control
GB2225091A (en) * 1988-11-18 1990-05-23 Pro Aqua Systems Ltd Flow modulator system for pressure reducing valves

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