GB1278801A - Jet nozzle for a gas turbine engine - Google Patents

Jet nozzle for a gas turbine engine

Info

Publication number
GB1278801A
GB1278801A GB30997/69A GB3099769A GB1278801A GB 1278801 A GB1278801 A GB 1278801A GB 30997/69 A GB30997/69 A GB 30997/69A GB 3099769 A GB3099769 A GB 3099769A GB 1278801 A GB1278801 A GB 1278801A
Authority
GB
United Kingdom
Prior art keywords
flaps
wall
shroud
nozzle
walls
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
GB30997/69A
Inventor
David Roberts Mcmurtry
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 GB30997/69A priority Critical patent/GB1278801A/en
Priority to US45526A priority patent/US3643868A/en
Priority to DE2029919A priority patent/DE2029919C3/en
Publication of GB1278801A publication Critical patent/GB1278801A/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
    • F02K1/06—Varying effective area of jet pipe or nozzle
    • F02K1/12—Varying effective area of jet pipe or nozzle by means of pivoted flaps
    • F02K1/1253—Varying effective area of jet pipe or nozzle by means of pivoted flaps of one series of flaps hinged at their upstream ends on a fixed structure and of a substantially axially movable external member
    • 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
    • F02K1/06—Varying effective area of jet pipe or nozzle
    • F02K1/12—Varying effective area of jet pipe or nozzle by means of pivoted flaps
    • F02K1/1207—Varying effective area of jet pipe or nozzle by means of pivoted flaps of one series of flaps hinged at their upstream ends on a fixed structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)
  • Supercharger (AREA)
  • Exhaust Silencers (AREA)

Abstract

1278801 Jet propulsion nozzles ROLLSROYCE Ltd 17 June 1970 [19 June 1969] 30997/69 Heading F1J The invention relates to a jet propulsion nozzle for a gas turbine engine, the nozzle comprising a series of adjustable flaps each flap being connected to an axially-movable shroud which surrounds the flaps, axial movement of the shroud resulting in pivotal movement of the flaps. The nozzle shown comprises a series of flaps 14 pivotally mounted at 15 at the downstream end of a jet pipe 11, the flaps being of V-shape as shown in Fig. 3 and auxiliary flaps 16 sealing the gaps between adjacent flaps 14. Each flap 14 is provided externally with a cam member 23 which is engaged by a roller 24 carried by an axially-movable shroud member 30, the shroud being movable by actuators 22. The shroud 30 is formed with walls 31 which terminate in a ring member 33, the walls 31 being of polygonal form. Each cam 23 and roller 24 is enclosed within a fairing 32, see Figs. 4 and 5a. When the flaps 14 are disposed in the maximum nozzle area position Fig. 4, the flaps lie parallel to the walls 31 and the base drag area C is a minimum. In Fig. 6 a wall 34 is disposed adjacent the wall 31 and is operable by a link 37 such that when the flaps 14 are in the maximum nozzle area disposition the wall 34 extends to the end of the wall 31 but as the shroud 30 is moved upstream causing the flaps 14 to move to the minimum nozzle area position the wall 34 extends downstream of the downstream end of the wall 31 whereby the base drag area is reduced from that indicated at E to that indicated at D.
GB30997/69A 1969-06-19 1969-06-19 Jet nozzle for a gas turbine engine Expired GB1278801A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB30997/69A GB1278801A (en) 1969-06-19 1969-06-19 Jet nozzle for a gas turbine engine
US45526A US3643868A (en) 1969-06-19 1970-06-11 Jet nozzle
DE2029919A DE2029919C3 (en) 1969-06-19 1970-06-18 Convergent nozzle for gas turbine jet engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30997/69A GB1278801A (en) 1969-06-19 1969-06-19 Jet nozzle for a gas turbine engine

Publications (1)

Publication Number Publication Date
GB1278801A true GB1278801A (en) 1972-06-21

Family

ID=10316387

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30997/69A Expired GB1278801A (en) 1969-06-19 1969-06-19 Jet nozzle for a gas turbine engine

Country Status (3)

Country Link
US (1) US3643868A (en)
DE (1) DE2029919C3 (en)
GB (1) GB1278801A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2609779C1 (en) * 1975-03-12 1992-01-09 Rolls Royce Plc Two-stream gas turbine engine for short or vertical take-off aircraft
US5273213A (en) * 1981-02-28 1993-12-28 Rolls-Royce Limited Variable area nozzle for turbomachines

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785567A (en) * 1972-11-02 1974-01-15 Goodrich Co B F Movable wall for engine nozzle
US4311276A (en) * 1978-06-24 1982-01-19 Rolls-Royce Limited Variable area nozzle for a gas turbine engine
GB2279703B (en) * 1993-07-02 1997-04-02 Rolls Royce Plc Variable area outlet
US20120199670A1 (en) * 2011-02-04 2012-08-09 Honeywell International Inc. Reduced drag afterburner nozzle actuation system
US20140321988A1 (en) * 2013-04-29 2014-10-30 Dresser Inc. Device for modifying flow parameters of working fluid exiting a compressor device
GB2588651A (en) 2019-10-31 2021-05-05 Rolls Royce Plc An exhaust nozzle
GB2588652A (en) * 2019-10-31 2021-05-05 Rolls Royce Plc An exhaust nozzle
GB2588653A (en) * 2019-10-31 2021-05-05 Rolls Royce Plc An exhaust nozzle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970429A (en) * 1952-08-11 1961-02-07 Westinghouse Electric Corp Movable shroud for variable jet engine exhaust nozzles
US2976676A (en) * 1952-10-27 1961-03-28 Solar Aircraft Co Variable jet nozzle with coacting shroud
US2806349A (en) * 1952-12-24 1957-09-17 Solar Aircraft Co Sheet metal variable area nozzle
GB774592A (en) * 1954-05-18 1957-05-15 Havilland Engine Co Ltd Adjustable propulsion nozzles
US3060681A (en) * 1958-03-13 1962-10-30 Rolls Royce Jet propulsion engine with adjustable nozzle
US2927424A (en) * 1958-04-04 1960-03-08 Orenda Engines Ltd Variable area nozzle
US3024599A (en) * 1958-07-14 1962-03-13 Rolls Royce Variable area jet propulsion nozzles
US3403858A (en) * 1967-03-31 1968-10-01 United Aircraft Corp Exhaust nozzle actuation system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2609779C1 (en) * 1975-03-12 1992-01-09 Rolls Royce Plc Two-stream gas turbine engine for short or vertical take-off aircraft
US5273213A (en) * 1981-02-28 1993-12-28 Rolls-Royce Limited Variable area nozzle for turbomachines

Also Published As

Publication number Publication date
DE2029919B2 (en) 1973-06-20
US3643868A (en) 1972-02-22
DE2029919C3 (en) 1974-01-17
DE2029919A1 (en) 1971-01-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee