GB1433936A - Variable area jet propulsion nozzles - Google Patents
Variable area jet propulsion nozzlesInfo
- Publication number
- GB1433936A GB1433936A GB4457873A GB4457873A GB1433936A GB 1433936 A GB1433936 A GB 1433936A GB 4457873 A GB4457873 A GB 4457873A GB 4457873 A GB4457873 A GB 4457873A GB 1433936 A GB1433936 A GB 1433936A
- Authority
- GB
- United Kingdom
- Prior art keywords
- side plates
- flap
- pivotally mounted
- pivotally connected
- parallelogram
- 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
- F02K1/1207—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
- Nozzles (AREA)
- Transmission Devices (AREA)
Abstract
1433936 Jet propulsion nozzles - variable area SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 24 Sept 1973 [6 Oct 1972] 44578/73 Addition to 1233694 Heading F1J The invention relates to a jet propulsion nozzle of the variable area type which comprises a series of flap members 102 each pivotally mounted at a tangential axis A at the downstream end of fixed nozzle structure 110, and each movable by means of an actuator 103 having an operating rod 104. Follower flaps 122 are disposed between adjacent actuated flaps 102, being maintained thereagainst in operation, by pressure of the gas stream. A pair of side plates 114a, 114b is associated with each actuated flap, the side plates being pivotally mounted on fixed structure as indicated at points K, G, H, J. The actuator 103 is pivotally mounted at its upstream end between the side plates as indicated at G. The pivoted flap 102 comprises a flap portion 102x and a pair of bell-crank levers 102y secured thereto, the flap being pivotally mounted between the side plates at points A. The upper ends of the bell-crank levers 102y have pivotally connected thereto links 106a, 106b which are pivotally connected at intermediate points D to levers 105, the levers 105 being pivotally connected at axes B at the downstream ends of the side plates 114a, 114b. The axes A, B, C, D, are disposed at the corners of a parallelogram, the side AB of which is fixed. The downstream ends of the links 106a, 106b are pivotally connected about an axis E to a crosspiece 107 to the mid-point of which is connected the downstream end of the actuator rod 104 by means of a pin 125. The arrangement is such that the height d2 of the point E above the side AB of the parallelogram is always less than the height h2 of the parallelogram.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7235502A FR2202234B2 (en) | 1972-10-06 | 1972-10-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1433936A true GB1433936A (en) | 1976-04-28 |
Family
ID=9105300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4457873A Expired GB1433936A (en) | 1972-10-06 | 1973-09-24 | Variable area jet propulsion nozzles |
Country Status (4)
Country | Link |
---|---|
US (1) | US3837580A (en) |
DE (1) | DE2349560C3 (en) |
FR (1) | FR2202234B2 (en) |
GB (1) | GB1433936A (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2244917B2 (en) * | 1973-09-21 | 1978-01-13 | Snecma | |
US4311276A (en) * | 1978-06-24 | 1982-01-19 | Rolls-Royce Limited | Variable area nozzle for a gas turbine engine |
FR2714421B1 (en) * | 1980-01-14 | 1996-03-01 | Snecma | Nozzle comprising an adjustable convergent-diverging nozzle, in particular for a jet engine. |
FR2474592A1 (en) * | 1980-01-25 | 1981-07-31 | Snecma | TURBOREACTOR TUBE DEVICE |
FR2723145B1 (en) * | 1981-11-24 | 1996-12-13 | Snecma | CONVERGENT-DIVERGENT NOZZLE, PARTICULARLY FOR A TURBOREACTOR |
FR2714422A1 (en) * | 1983-01-13 | 1995-06-30 | Snecma | Convergent-divergent nozzle, particularly for jet engines |
FR2557211A1 (en) * | 1983-12-21 | 1985-06-28 | Camboulives Andre | EJECTION ASSEMBLY, IN PARTICULAR FOR TURBOJET ENGINE |
FR2617910A1 (en) * | 1987-07-08 | 1989-01-13 | Snecma | AXISYMETRIC NOZZLE OF DIVERGENT CONVERGENT TURBOREACTOR |
FR2661716B1 (en) * | 1990-05-03 | 1992-07-03 | Snecma | TURBOREACTOR NOZZLE DEVICE. |
US5031836A (en) * | 1990-07-10 | 1991-07-16 | United Technologies Corporation | Flexible fairing for airframe/nozzle interface |
FR2873757B1 (en) * | 2004-07-28 | 2006-09-29 | Snecma Moteurs Sa | CONVERGENT TUYERE OF TURBOREACTOR |
FR2875853B1 (en) * | 2004-09-29 | 2006-12-22 | Snecma Moteurs Sa | TURBOREACTOR WITH A VARIABLE SECTION TUBE WHICH EACH PIVOT SHUTTER AROUND A AXIS, AXES FOR THE SHUTTERS |
FR2877052B1 (en) * | 2004-10-26 | 2007-04-20 | Snecma Moteurs Sa | VARIABLE SECTION TURBOMACHINE TUBE WITH MONOBLOC CONTROL LEVER SUPPORT |
US8015820B2 (en) * | 2008-06-03 | 2011-09-13 | United Technologies Corporation | Gas turbine engine exhaust component and manufacturing method of same |
GB201609071D0 (en) | 2016-05-24 | 2016-07-06 | Rolls Royce Plc | Aircraft gas turbine engine nacelle |
CN112555049A (en) * | 2020-12-03 | 2021-03-26 | 北方工业大学 | Outer sleeve type vectoring nozzle structure of micro turbojet engine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2990029A (en) * | 1956-03-16 | 1961-06-27 | Rolls Royce | Variable area jet propulsion nozzles |
US3004385A (en) * | 1958-06-25 | 1961-10-17 | Gen Motors Corp | Variable convergent-divergent jet nozzle |
FR1562941A (en) * | 1968-01-19 | 1969-04-11 | ||
FR2030532A5 (en) * | 1969-07-03 | 1970-11-13 | Snecma |
-
1972
- 1972-10-06 FR FR7235502A patent/FR2202234B2/fr not_active Expired
-
1973
- 1973-09-24 GB GB4457873A patent/GB1433936A/en not_active Expired
- 1973-10-02 US US00402836A patent/US3837580A/en not_active Expired - Lifetime
- 1973-10-03 DE DE2349560A patent/DE2349560C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2349560C3 (en) | 1980-04-03 |
US3837580A (en) | 1974-09-24 |
FR2202234B2 (en) | 1976-03-26 |
DE2349560B2 (en) | 1979-08-02 |
FR2202234A2 (en) | 1974-05-03 |
DE2349560A1 (en) | 1974-04-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |