FR2277238A1 - Variable diameter exhaust duct for jet engine - has flaps fixed to ring linkage with radial linkage diagonals - Google Patents

Variable diameter exhaust duct for jet engine - has flaps fixed to ring linkage with radial linkage diagonals

Info

Publication number
FR2277238A1
FR2277238A1 FR7423232A FR7423232A FR2277238A1 FR 2277238 A1 FR2277238 A1 FR 2277238A1 FR 7423232 A FR7423232 A FR 7423232A FR 7423232 A FR7423232 A FR 7423232A FR 2277238 A1 FR2277238 A1 FR 2277238A1
Authority
FR
France
Prior art keywords
linkage
diagonals
exhaust duct
jet engine
variable diameter
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.)
Granted
Application number
FR7423232A
Other languages
French (fr)
Other versions
FR2277238B1 (en
Inventor
Andre Alphonse Med Camboulives
Theophile Francois Le Maout
Gerard Marcel Francois Mandet
Roger Alfred Jul Vandenbroucke
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
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 SNECMA SAS filed Critical SNECMA SAS
Priority to FR7423232A priority Critical patent/FR2277238A1/en
Publication of FR2277238A1 publication Critical patent/FR2277238A1/en
Application granted granted Critical
Publication of FR2277238B1 publication Critical patent/FR2277238B1/fr
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The exhaust manifold consists of a number of interlocking segmental plates which are able to slide over each other to form a larger or small ring cross-sectional duct area. The inside plates are connected to a number of concentric hydraulic jacks operating with their axes parallel to the jet centreline. The jacks operate on a number of mechanical linkages which open or close arms which in turn effectively move the plates. The linkages are pairs of crossing links in the same transverse jet plane, with one of the diagonals of each pair of links extending radially from the jet axis.
FR7423232A 1974-07-04 1974-07-04 Variable diameter exhaust duct for jet engine - has flaps fixed to ring linkage with radial linkage diagonals Granted FR2277238A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7423232A FR2277238A1 (en) 1974-07-04 1974-07-04 Variable diameter exhaust duct for jet engine - has flaps fixed to ring linkage with radial linkage diagonals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7423232A FR2277238A1 (en) 1974-07-04 1974-07-04 Variable diameter exhaust duct for jet engine - has flaps fixed to ring linkage with radial linkage diagonals

Publications (2)

Publication Number Publication Date
FR2277238A1 true FR2277238A1 (en) 1976-01-30
FR2277238B1 FR2277238B1 (en) 1976-12-24

Family

ID=9140870

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7423232A Granted FR2277238A1 (en) 1974-07-04 1974-07-04 Variable diameter exhaust duct for jet engine - has flaps fixed to ring linkage with radial linkage diagonals

Country Status (1)

Country Link
FR (1) FR2277238A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0509757A1 (en) * 1991-04-15 1992-10-21 General Electric Company Jet engine exhaust nozzle
FR2723145A1 (en) * 1981-11-24 1996-02-02 Snecma Convergent=divergent nozzles for turbo=reactor
FR2732408A1 (en) * 1983-03-16 1996-10-04 Snecma Nozzles for gas turbine
RU2684362C1 (en) * 2018-02-13 2019-04-08 Государственный научный центр Российской Федерации-федеральное государственное унитарное предприятие "Исследовательский Центр имени М.В. Келдыша" Ram-jet adjustable split nozzle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2723145A1 (en) * 1981-11-24 1996-02-02 Snecma Convergent=divergent nozzles for turbo=reactor
FR2732408A1 (en) * 1983-03-16 1996-10-04 Snecma Nozzles for gas turbine
EP0509757A1 (en) * 1991-04-15 1992-10-21 General Electric Company Jet engine exhaust nozzle
RU2684362C1 (en) * 2018-02-13 2019-04-08 Государственный научный центр Российской Федерации-федеральное государственное унитарное предприятие "Исследовательский Центр имени М.В. Келдыша" Ram-jet adjustable split nozzle

Also Published As

Publication number Publication date
FR2277238B1 (en) 1976-12-24

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Legal Events

Date Code Title Description
ST Notification of lapse