GB1278801A - Jet nozzle for a gas turbine engine - Google Patents
Jet nozzle for a gas turbine engineInfo
- 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
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.
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)
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)
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)
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 |
-
1969
- 1969-06-19 GB GB30997/69A patent/GB1278801A/en not_active Expired
-
1970
- 1970-06-11 US US45526A patent/US3643868A/en not_active Expired - Lifetime
- 1970-06-18 DE DE2029919A patent/DE2029919C3/en not_active Expired
Cited By (2)
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 |