GB871274A - Variable-shape jet propulsion nozzle - Google Patents

Variable-shape jet propulsion nozzle

Info

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
Application number
GB3772159A
Inventor
Rene Paul Logerot
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.)
Safran Aircraft Engines SAS
Original Assignee
Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
SNECMA SAS
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 Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA, SNECMA SAS filed Critical Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
Publication of GB871274A publication Critical patent/GB871274A/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
    • F02K1/1215—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.
GB3772159A 1958-11-12 1959-11-06 Variable-shape jet propulsion nozzle Expired GB871274A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (8)

* Cited by examiner, † Cited by third party
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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