GB895331A - Improvements in or relating to jet propulsion nozzles - Google Patents

Improvements in or relating to jet propulsion nozzles

Info

Publication number
GB895331A
GB895331A GB786160A GB786160A GB895331A GB 895331 A GB895331 A GB 895331A GB 786160 A GB786160 A GB 786160A GB 786160 A GB786160 A GB 786160A GB 895331 A GB895331 A GB 895331A
Authority
GB
United Kingdom
Prior art keywords
flaps
divergent
nozzle
convergent
jet propulsion
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
GB786160A
Inventor
Stanley Frank Smith
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB786160A priority Critical patent/GB895331A/en
Publication of GB895331A publication Critical patent/GB895331A/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
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/38—Introducing air inside the jet

Abstract

895,331. Jet propulsion plant. ROLLSROYCE Ltd. Feb. 21, 1961 [March 4, 1960], No. 7861/60. Class 110 (3). A convergent-divergent jet propulsion nozzle has at least one wall of the divergent portion formed of a number of pivoted flaps which are movable from a position in which they are in sealing engagement with each other to form a divergent duct to a position in which they form inlet apertures for inflow of additional air into the nozzle. The jet propulsion nozzle, Fig. 1, comprises a convergent portion 10, a throat 12 and a divergent portion 11. The divergent portion 11 is rectangular in shape and is formed by two fixed side walls and two horizontal diverging walls formed by flaps 14, 15 pivoted at 16. Flaps 17 are pivoted at 18 to the downstream ends of fixed wall portion of the convergent portion 10 which changes from a circular cross-section at its upstream end connected to the jet pipes 19 of gas turbine engines to a rectangular cross-section at its downstream end. During cruise conditions, when the nozzle operates as a convergent-divergent nozzle, the flaps 14, 15, 17 are moved to the position shown in full lines. When the gas turbine engines are operated at maximum rotational speed to give maximum thrust the flaps 14, 15 and 17 are moved to the dotted line position. The flaps 17 form a convergent nozzle and the flaps 14, 15 form apertures 20 through which air flows into the divergent portion 13 to prevent overexpansion of the propulsive gas stream.
GB786160A 1960-03-04 1960-03-04 Improvements in or relating to jet propulsion nozzles Expired GB895331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB786160A GB895331A (en) 1960-03-04 1960-03-04 Improvements in or relating to jet propulsion nozzles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB786160A GB895331A (en) 1960-03-04 1960-03-04 Improvements in or relating to jet propulsion nozzles

Publications (1)

Publication Number Publication Date
GB895331A true GB895331A (en) 1962-05-02

Family

ID=9841202

Family Applications (1)

Application Number Title Priority Date Filing Date
GB786160A Expired GB895331A (en) 1960-03-04 1960-03-04 Improvements in or relating to jet propulsion nozzles

Country Status (1)

Country Link
GB (1) GB895331A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229457A (en) * 1962-10-15 1966-01-18 James R Rowe Variable area ratio rocket nozzle
DE1230620B (en) * 1963-01-09 1966-12-15 Rolls Royce Vertical lift engine system for aircraft
US3598319A (en) * 1969-07-14 1971-08-10 Gen Electric Propulsion nozzles
US4102499A (en) * 1974-09-07 1978-07-25 Rolls Royce (1971) Limited Gas turbine powerplants
FR2658867A1 (en) * 1990-02-26 1991-08-30 Gen Electric EXHAUST NOZZLE COMPRISING A VARIABLE PROFILE EXHAUST SHUTTER AND RELATED COMBUSTION GAS DISCHARGE METHOD.
US5201800A (en) * 1990-02-26 1993-04-13 General Electric Company Method for discharging combustion gases from an exhaust nozzle
WO2017218841A1 (en) * 2016-06-15 2017-12-21 The Regents Of The University Of California Two-dimensional supersonic nozzle thrust vectoring using staggered ramps

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229457A (en) * 1962-10-15 1966-01-18 James R Rowe Variable area ratio rocket nozzle
DE1230620B (en) * 1963-01-09 1966-12-15 Rolls Royce Vertical lift engine system for aircraft
US3598319A (en) * 1969-07-14 1971-08-10 Gen Electric Propulsion nozzles
US4102499A (en) * 1974-09-07 1978-07-25 Rolls Royce (1971) Limited Gas turbine powerplants
FR2658867A1 (en) * 1990-02-26 1991-08-30 Gen Electric EXHAUST NOZZLE COMPRISING A VARIABLE PROFILE EXHAUST SHUTTER AND RELATED COMBUSTION GAS DISCHARGE METHOD.
GB2241540A (en) * 1990-02-26 1991-09-04 Gen Electric Jet propulsion nozzle having variable contour exhaust flap
DE4105422A1 (en) * 1990-02-26 1991-09-05 Gen Electric METHOD FOR DELIVERING COMBUSTION GAS FROM AN AIRPLANE ENGINE AND THEREFORE PROVIDED NOZZLE
US5103639A (en) * 1990-02-26 1992-04-14 General Electric Company Exhaust nozzle having variable contour exhaust flap
US5201800A (en) * 1990-02-26 1993-04-13 General Electric Company Method for discharging combustion gases from an exhaust nozzle
WO2017218841A1 (en) * 2016-06-15 2017-12-21 The Regents Of The University Of California Two-dimensional supersonic nozzle thrust vectoring using staggered ramps
US11614050B2 (en) 2016-06-15 2023-03-28 The Regents Of The University Of California Two-dimensional supersonic nozzle thrust vectoring using staggered ramps

Similar Documents

Publication Publication Date Title
GB852829A (en) Improvements in or relating to gas-turbine jet propulsion engines
GB772363A (en) Improvements in or relating to jet propulsion nozzles
GB782323A (en) Improvements in devices for regulating the effective cross-section of a discharge nozzle
GB1122910A (en) Improvements in supersonic convergent-divergent jet exhaust nozzle
GB907220A (en) Improvements in thrust spoiler and reingestion control
GB895331A (en) Improvements in or relating to jet propulsion nozzles
GB744196A (en) Improvements in or relating to silencing means
GB1028041A (en) A gas ejector device
GB1395709A (en) Jet propulsion power plant
GB1045295A (en) Improvements in or relating to a jet noise suppression device
GB834907A (en) Improvements in or relating to jet propulsion nozzles
GB1479149A (en) Variable pitch ducted fan gas turbine power plant
GB876583A (en) Adjustable jet propulsion nozzle and jet propulsion engine provided with such nozzle
GB795652A (en) Improvements in or relating to gas-turbine jet propulsion engines
GB1204268A (en) An exhaust arrangement for a jet engine
GB882424A (en) Improvements in or relating to aircraft jet propulsion apparatus
GB894450A (en) Improvements in converging-diverging jet propulsion nozzle
GB912293A (en) Improvements relating to jet propulsion engine noise suppressors
GB895872A (en) Jet propulsion engines
GB1043524A (en) Improvements in jet propulsion engines
GB871274A (en) Variable-shape jet propulsion nozzle
GB1415509A (en) Ducted fan gas turbine jet propulsion engines
GB928475A (en) Improvements in or relating to by-pass gas turbine engines
GB894800A (en) Jet propulsion engine exhaust noise suppressor
GB910178A (en) Gas turbine by-pass jet engine