EP0234137B1 - Dispositif de fixation d'un anneau brûleur ou accroche-flammes en matériau composite de turboréacteur - Google Patents

Dispositif de fixation d'un anneau brûleur ou accroche-flammes en matériau composite de turboréacteur Download PDF

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Publication number
EP0234137B1
EP0234137B1 EP86401882A EP86401882A EP0234137B1 EP 0234137 B1 EP0234137 B1 EP 0234137B1 EP 86401882 A EP86401882 A EP 86401882A EP 86401882 A EP86401882 A EP 86401882A EP 0234137 B1 EP0234137 B1 EP 0234137B1
Authority
EP
European Patent Office
Prior art keywords
ring
yoke
cylindrical
truncated pyramid
upstream
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
EP86401882A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0234137A1 (fr
Inventor
Guy Jean Louis Lapergue
Marc Georges Loubet
Marcel Robert Soligny
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
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 filed Critical Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
Publication of EP0234137A1 publication Critical patent/EP0234137A1/fr
Application granted granted Critical
Publication of EP0234137B1 publication Critical patent/EP0234137B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
    • F23R3/16—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration with devices inside the flame tube or the combustion chamber to influence the air or gas flow
    • F23R3/18—Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants
    • F23R3/20—Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants incorporating fuel injection means

Definitions

  • the present invention relates to a connecting device between a burner ring or flame holder of composite material and a post-combustion chamber channel of a turbojet engine.
  • FR-A-2 090 250 shows such an example in which a flame-catching ring in the shape of a V-shaped gutter is mounted on arms articulated at the top by means of connecting rods comprising a yoke at each of their ends.
  • the problem lies more particularly at the point of suspension.
  • the problem arises because of the low coefficient of expansion of the ring, while the metal yokes, serving as attachments for the rods ensuring the connection of the ring with the diffusing casings or of post-combustion chambers, have a coefficient of expansion three times higher than the composite structure.
  • the purpose of the connecting device according to the invention is to remedy this drawback.
  • the device according to the invention provides security of attachment by taking up drag forces by pressing against the current on the inner wings of the ring.
  • the link 7 is articulated at its other end (not shown) by means of a yoke on the superstructure of the channel of the post-combustion chamber of a turbojet engine. To compensate for the differences in expansion between the bore 3 of the boss and the cylindrical part 4 of the yoke, a slight clearance must be provided.
  • This fitting ensures the transmission to the ring 1 of the torque caused by the inclination along the angle a of the connecting rod 7.
  • the cylindrical part 4 is extended by a part of rectangular section 8 which is larger than the section of the cylindrical part 4 and ensures the retention of the yoke in the ring.
  • the part 8 has two opposite faces 8a, 8b forming between them a determined angle converging upstream and which are in abutment against the corresponding inner faces of the wings 1a, 1b of the ring 1 in the form of a gutter, under the effect of the drag force, achieving the translational stop upstream side and ensuring the recovery of the drag force.
  • the part 8 of the yoke has a bore 13 in which is engaged a fuel distribution ramp 14 whose positioning and fixing are ensured by the parts 8 of the yoke.
  • the cylindrical member 16 is engaged at its upstream end in an opening 18 formed in the boss 15 and said member 16 has a threaded hole 19 into which is screwed a threaded portion 20 extending a male yoke 21 which is supported by the intermediary a washer 22 against the cylindrical member 16 and the boss 15.
  • a female yoke 23 of a link 24 On the male yoke 21 is articulated a female yoke 23 of a link 24 by means of a pin 25 engaged in holes 26, 27 provided respectively in the male yoke 21 and in the female yoke 23.
  • the link 24 is articulated on the channel of the post-combustion chamber.
  • the block 17 of trapezoidal section has on its two sides and perpendicularly its axis two cylindrical arms 28, 28a enveloping a fuel distribution ramp 29 having regularly spaced holes 30 and through which the fuel is injected through cutouts 31 and 32 formed opposite in the cylindrical arms 28, 28a and in the leading edge of the ring 1.
  • On either side of the cylindrical arms 28, 28a are mounted centering yokes 33, 33a which are engaged on the ramp distribution 29 and which have a stud 34 embedded in a cutout 35 of the leading edge of the ring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Gas Burners (AREA)
EP86401882A 1985-09-03 1986-08-27 Dispositif de fixation d'un anneau brûleur ou accroche-flammes en matériau composite de turboréacteur Expired EP0234137B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8513047A FR2586792B1 (fr) 1985-09-03 1985-09-03 Dispositif de liaison entre un anneau bruleur ou accroche-flammes en materiau composite et un canal de chambre de post-combustion d'un turboreacteur
FR8513047 1985-09-03

Publications (2)

Publication Number Publication Date
EP0234137A1 EP0234137A1 (fr) 1987-09-02
EP0234137B1 true EP0234137B1 (fr) 1989-10-04

Family

ID=9322573

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86401882A Expired EP0234137B1 (fr) 1985-09-03 1986-08-27 Dispositif de fixation d'un anneau brûleur ou accroche-flammes en matériau composite de turboréacteur

Country Status (6)

Country Link
US (1) US4724671A (enrdf_load_stackoverflow)
EP (1) EP0234137B1 (enrdf_load_stackoverflow)
JP (1) JPS6273018A (enrdf_load_stackoverflow)
DE (1) DE3666098D1 (enrdf_load_stackoverflow)
FR (1) FR2586792B1 (enrdf_load_stackoverflow)
IL (1) IL79870A0 (enrdf_load_stackoverflow)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815283A (en) * 1987-06-25 1989-03-28 The United States Of America As Represented By The Secretary Of The Air Force Afterburner flameholder construction
JPH0520991Y2 (enrdf_load_stackoverflow) * 1987-09-17 1993-05-31
US5001897A (en) * 1989-12-20 1991-03-26 United Technologies Corporation Augmentor spray ring mount
US5103638A (en) * 1990-01-29 1992-04-14 Rolls-Royce Inc. Mounting arrangement
US5127224A (en) * 1991-03-25 1992-07-07 United Technologies Corporation Spray-ring mounting assembly
FR2699226B1 (fr) * 1992-12-16 1995-01-13 Snecma Ensemble de post-combustion d'une turbine à gaz.
FR2858661B1 (fr) * 2003-08-05 2005-10-07 Snecma Moteurs Dispositif de post-combustion
FR2869954B1 (fr) * 2004-05-05 2006-06-16 Snecma Moteurs Sa Dispositif de fixation d'un anneau bruleur dans une chambre de postcombustion d'un turboreacteur
FR2981700B1 (fr) * 2011-10-24 2016-08-26 Snecma Propulsion Solide Dispositif de fixation d'une piece creuse
US11460188B2 (en) 2013-02-14 2022-10-04 Clearsign Technologies Corporation Ultra low emissions firetube boiler burner
FR3032519B1 (fr) * 2015-02-10 2017-02-24 Herakles Dispositif accroche-flamme
WO2018160884A1 (en) 2017-03-03 2018-09-07 Clearsign Combustion Corporation Field installed perforated flame holder and method of assembly and installation
JP2024025379A (ja) * 2022-08-12 2024-02-26 川崎重工業株式会社 ガスタービンの組立体

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1232450A (fr) * 1959-04-21 1960-10-07 Snecma Perfectionnements aux dispositifs de combustion de propulseurs à réaction, applicables notamment à la post-combustion
FR85730E (fr) * 1964-05-12 1965-10-01 Snecma Perfectionnements aux dispositifs de combustion de propulseurs à réaction, applicables notamment à la post-combustion
US3269116A (en) * 1965-04-29 1966-08-30 United Aircraft Corp Centrally supported flameholder
FR1513429A (fr) * 1966-12-16 1968-02-16 Snecma Dispositif d'injection de carburant pour chambre de combustion
FR1590684A (enrdf_load_stackoverflow) * 1968-09-12 1970-04-20
US3646763A (en) * 1970-05-25 1972-03-07 Gen Electric Gas turbine engine with improved afterburner
FR2097587A5 (enrdf_load_stackoverflow) * 1970-07-10 1972-03-03 Snecma
FR2122308B1 (enrdf_load_stackoverflow) * 1971-01-19 1976-03-05 Snecma Fr
US3925325A (en) * 1974-07-22 1975-12-09 Monsanto Co Organoaluminum process for imide-alcohol condensation
US4438626A (en) * 1981-09-11 1984-03-27 General Electric Company Apparatus for attaching a ceramic member to a metal structure

Also Published As

Publication number Publication date
FR2586792A1 (fr) 1987-03-06
IL79870A0 (en) 1986-11-30
US4724671A (en) 1988-02-16
FR2586792B1 (fr) 1989-06-16
JPS6273018A (ja) 1987-04-03
DE3666098D1 (en) 1989-11-09
JPH0523331B2 (enrdf_load_stackoverflow) 1993-04-02
EP0234137A1 (fr) 1987-09-02

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