GB871274A - Variable-shape jet propulsion nozzle - Google Patents
Variable-shape jet propulsion nozzleInfo
- Publication number
- GB871274A GB871274A GB3772159A GB3772159A GB871274A GB 871274 A GB871274 A GB 871274A GB 3772159 A GB3772159 A GB 3772159A GB 3772159 A GB3772159 A GB 3772159A GB 871274 A GB871274 A GB 871274A
- Authority
- GB
- United Kingdom
- Prior art keywords
- flaps
- upstream
- pivoted
- ring
- 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
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
- F02K1/1215—Varying effective area of jet pipe or nozzle by means of pivoted flaps of two series of flaps, the upstream series having its flaps hinged at their upstream ends on a fixed structure, and the downstream series having its flaps hinged at their downstream 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)
- Jet Pumps And Other Pumps (AREA)
Abstract
871,274. Jet propulsion nozzles. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Nov. 6, 1959 [Nov. 12, 1958], No. 37721/59. Class 110 (3). A jet propulsion nozzle comprises two independent groups of pivoted flaps having separate controls; on the one hand an upstream group pivoted at their upstream ends and forming a convergent portion and on the other hand, a downstream group pivoted at their downstream ends and forming a divergent portion of the nozzle and also capable of being retracted laterally so as to leave only the upstream flaps operative. The jet propulsion nozzle comprises a group of upstream flaps 1 pivoted at 2 to the jet pipe 3 and a group of downstream flaps 4 pivoted at 5 to the upstream end of a fixed divergent portion 19. The flaps 1 have free downstream ends and the flaps 4 free upstream ends. The flaps form a convergent-divergent nozzle. A channel 8 for the aspiration of air by ejector effect may be provided. The flaps 1 are actuated.by axial movement of a ring 10 and the flaps 4 by axial movement of a ring 13. The rings 10, 13 are operated by jacks independently controlled. The ring 10 is controlled by means based substantially on engine rotation speed and the ring 13 by means responsive to, for example, Mach number, the pressure upstream of the discharge nozzle or the external pressure.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR778867A FR1215237A (en) | 1958-11-12 | 1958-11-12 | Variable geometry nozzle |
Publications (1)
Publication Number | Publication Date |
---|---|
GB871274A true GB871274A (en) | 1961-06-28 |
Family
ID=8708188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3772159A Expired GB871274A (en) | 1958-11-12 | 1959-11-06 | Variable-shape jet propulsion nozzle |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1154675B (en) |
FR (1) | FR1215237A (en) |
GB (1) | GB871274A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2247924A (en) * | 1990-05-07 | 1992-03-18 | Gen Electric | An exhaust assembly for an aircraft engine. |
GB2403775A (en) * | 2003-07-07 | 2005-01-12 | United Technologies Corp | Gas turbine engine exhaust nozzle |
GB2437418A (en) * | 2003-07-07 | 2007-10-24 | United Technologies Corp | Turbine engine nozzle |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1226830B (en) * | 1961-01-07 | 1966-10-13 | Gen Electric | Thrust nozzle for a recoil engine with primary and secondary nozzle sections |
FR1342275A (en) * | 1962-09-26 | 1963-11-08 | Bertin & Cie | Silencer more particularly intended for reactors with high expansion rates |
FR2491126A1 (en) * | 1980-10-01 | 1982-04-02 | Snecma | DEVICE FOR MANEUVERING THE SHUTTERS OF A TURBOMACHINE TUBE |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2597253A (en) * | 1945-11-13 | 1952-05-20 | Effie B Melchior | Jet-propulsion nozzle |
US2770944A (en) * | 1952-04-26 | 1956-11-20 | United Aircraft Corp | Variable area reaction nozzle movable from convergent to convergent-di-vergent form |
GB782494A (en) * | 1954-03-26 | 1957-09-11 | Rolls Royce | Improvements in or relating to jet propulsion nozzle arrangements |
GB788359A (en) * | 1954-11-26 | 1958-01-02 | Power Jets Res & Dev Ltd | Discharge nozzles for propulsive jets |
GB788360A (en) * | 1954-11-26 | 1958-01-02 | Power Jets Res & Dev Ltd | An aircraft jet propulsion system and a discharge nozzle for the propulsive jet stream |
-
1958
- 1958-11-12 FR FR778867A patent/FR1215237A/en not_active Expired
-
1959
- 1959-11-06 GB GB3772159A patent/GB871274A/en not_active Expired
- 1959-11-07 DE DES65747A patent/DE1154675B/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2247924A (en) * | 1990-05-07 | 1992-03-18 | Gen Electric | An exhaust assembly for an aircraft engine. |
US5154052A (en) * | 1990-05-07 | 1992-10-13 | General Electric Company | Exhaust assembly for a high speed civil transport aircraft engine |
GB2247924B (en) * | 1990-05-07 | 1994-06-15 | Gen Electric | An exhaust assembly for an aircraft engine |
GB2403775A (en) * | 2003-07-07 | 2005-01-12 | United Technologies Corp | Gas turbine engine exhaust nozzle |
US7007483B2 (en) | 2003-07-07 | 2006-03-07 | United Technologies Corporation | Turbine engine nozzle |
GB2437418A (en) * | 2003-07-07 | 2007-10-24 | United Technologies Corp | Turbine engine nozzle |
GB2403775B (en) * | 2003-07-07 | 2007-12-19 | United Technologies Corp | Turbine engine nozzle |
GB2437418B (en) * | 2003-07-07 | 2008-03-19 | United Technologies Corp | Turbine engine nozzle |
Also Published As
Publication number | Publication date |
---|---|
DE1154675B (en) | 1963-09-19 |
FR1215237A (en) | 1960-04-15 |
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