EP1803999A1 - Vorrichtung zur Befestigung eines Flammenhalterarms zu einer Nachverbrennungskammerwand und Anlage mit einer derartigen Vorrichtung - Google Patents

Vorrichtung zur Befestigung eines Flammenhalterarms zu einer Nachverbrennungskammerwand und Anlage mit einer derartigen Vorrichtung Download PDF

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Publication number
EP1803999A1
EP1803999A1 EP06077035A EP06077035A EP1803999A1 EP 1803999 A1 EP1803999 A1 EP 1803999A1 EP 06077035 A EP06077035 A EP 06077035A EP 06077035 A EP06077035 A EP 06077035A EP 1803999 A1 EP1803999 A1 EP 1803999A1
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EP
European Patent Office
Prior art keywords
arm
legs
fixing
plate
flanges
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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
EP06077035A
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English (en)
French (fr)
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EP1803999B1 (de
Inventor
Stéphane Pierre Guillaume Blanchard
Yann François Jean-Claude Vuillemenot
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
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Filing date
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Publication of EP1803999A1 publication Critical patent/EP1803999A1/de
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Publication of EP1803999B1 publication Critical patent/EP1803999B1/de
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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
    • 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
    • F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
    • F23R3/283—Attaching or cooling of fuel injecting means including supports for fuel injectors, stems, or lances

Definitions

  • the present invention relates to the field of turbojet afterburner equipment, and more specifically the attachment of a flame holder arm to an afterburner housing by means of a fixing device and support.
  • FIG. 1 represents a view in axial section of a turbofan engine TR with a double-flow equipment afterburner.
  • the turbojet engine TR conventionally comprises compressor stages CBP, CHP, and turbine stages THP, TBP for generating a primary flow F1 of burnt gases ejected at high speed in a TY nozzle at the rear which ensures the propulsion.
  • Part of the air of the compressor CBP is derived in a secondary circuit F2 and joins the primary stream F1 in a post-combustion chamber CPC at the nozzle TY to provide additional combustion and additional thrust.
  • the PC chamber contains post-combustion equipment that can inject fuel into F1 + F2 flows and provide this additional combustion.
  • the equipment comprises a series of flame arrestor arms 1 extending radially towards the axis of the reactor TR (from an external casing to which they are attached), to which may be added a burner ring fixed on the arms and arranged according to the circumference of the nozzle TR (ring not shown in Figure 1, only its section appears in Figure 2).
  • Figure 2 shows in more detail the arrangement and mounting of a metal flame-holder arm on an outer casing shell according to the prior art.
  • the flame-holder arm may be made in one-piece form of composite material, in particular composite Ceramic Matrix (abbreviated CMC).
  • CMCs have the advantage of withstanding very high temperatures, in particular of the order of 1000.degree. C. to 1500.degree. C., such as those reached by the hot gases ejected into the nozzle and of offering high mechanical strength as well as high rigidity for a low mass.
  • CMC materials offer a higher strength-to-mass ratio than metals, which is particularly sought after and appreciated in aeronautics.
  • CMC materials do not lend themselves to machining operations or to molding of three-dimensional assembly forms. In particular, drilling of fixing holes in narrow flanges exposes the tearing of the CMC material.
  • the arm 1 undergoes lateral forces because of the gyration of the flow in the nozzle which reveals stresses and flexion areas in the legs of the arm.
  • the indented legs have a low resistance and in particular a flexion when exerts a lateral force or a tilting moment (low “moment of inertia” especially when the legs are close together).
  • the object of the invention is to overcome the drawbacks of current solutions and to propose a system for attaching post-combustion equipment, in particular to relieve the stresses experienced by the flame-holder arm during lateral forces caused by gyration. flow in the vein.
  • Another object is to avoid having the arm bear the entire load of the burner ring segments in a place where it is weakened by the notches of the legs.
  • a device for fixing an afterburner equipment on a turbojet casing comprising a flame-holder arm comprising two longitudinal legs, the device comprising a transverse fixing plate on the housing and at least two lateral legs for supporting the legs, the support legs extending longitudinally.
  • the legs extend longitudinally for a length corresponding at least to a major part of the height of the legs of the flame holder arm.
  • the tabs comprise means, in particular holes, for lateral attachment of the legs of the arm.
  • each leg has a thickened base.
  • the base may comprise a flange provided with a fillet on an external lateral surface.
  • the lower surface of each base may form a flat and / or a flat surface capable of being brazed. As a result, the base of each longitudinal leg can be secured to the transverse plate.
  • the plate is provided with fixing means on the housing.
  • the device comprises at least one burner ring support flange.
  • the device comprises a bridge connecting transversely the longitudinal tabs.
  • the bridge comprises at least one orifice for passage and immobilization of a ventilation liner and / or a fuel injection ramp.
  • the plate has edges provided on their inner side, a groove and a projecting flange forming lateral hooks for immobilizing fastening flanges folded at the end of the legs of the arm flame holder.
  • edges of the plate are provided with means for immobilizing the arm flanges.
  • edges comprise threaded longitudinal holes and / or compression screws and further that the device comprises at least one immobilization wedge / compression of an arm attachment flange.
  • the invention also relates to post-combustion equipment comprising a flame holder arm and such a fixing device.
  • the equipment may comprise at least one burner ring segment.
  • the invention further relates to a turbine engine comprising at least one such post-combustion equipment.
  • FIG. 4 shows an attachment plate 20 and two lateral support tabs 30, 30 'which make it possible to form, as illustrated in FIG. 5, a device 40 for attaching a flame holder arm 1 to a casing. according to a first embodiment of the invention.
  • the parts 20, 30 of the fixing device according to the invention are preferably made of metal or metal alloy, in particular based on titanium or nickel.
  • the flame holder arm 1 is in particular a one-piece arm made of a composite material of the CMC (ceramic matrix composite) type as illustrated in FIG. 3 and described in the document FR-A-2,865,502 which will be referred to for further details.
  • CMC ceramic matrix composite
  • the flame holder arm 1 has a flared gutter shape and comprises two lateral walls 3, 4 connected to their top 6 and extending at their bases by two legs 7 and 8 provided with folded flanges 9 and 10 attachment to a housing shell.
  • the gap 11 between the legs 7,8 of the arm is notched, on the one hand, to be able to fold the flanges 9,10 and, on the other hand, to allow passage to a flow of fresh air to the bottom of a burner ring 12 which will be fixed on a metal support secured to the rear of the arm (downstream side, see Figure 2).
  • the two edges at the rear of the arm 1 bear two indentations 13 at the height of the legs 7, 8 to pass through the burner ring and form recesses 13 for a ring support 12.
  • the mounting plate 20 extends in a transverse plane.
  • the support lugs 30 are intended to be secured to the fixing plate 20 as detailed below.
  • the plate 20 is formed of a metal disc provided with fixing means on the housing. These means comprise positioning pins or threaded studs 21,22 which engage in holes 23 provided on the casing C as well as orifices 24,25 for the passage of screws or fixing bolts 26.
  • the plate 20 is fixed on the casing C by tightening nuts on the threaded studs 21-22 and on the fixing screws 26.
  • the plate 20 has a flat surface 27 intended to serve as brazing support for the two lateral lugs 30 for supporting the arm 1 , as detailed later.
  • each tab 30 is formed of a metal plate 31 extending in a direction substantially corresponding to the longitudinal direction of the arm 1 or the radial direction of the housing C, once the device 40 fixed on the casing C.
  • each tab 30 has a flat surface 31 extending longitudinally along a length L corresponding to the height H of a leg 7.8 of the arm, or at least covering a major part of the height H.
  • the width W of the tab 30 preferably also corresponds to a major part of the width I of the leg 7, 8 of the arm 1.
  • FIG. 8 shows, for example, in another embodiment, that the length L of the tabs 30 covers the entire height H of the legs 7.8 of the arm 1 from the level of the folded flanges 9,10 until the birth of the leading edge 5.
  • the base 32 of each lug designed to be pressed against the fixing plate 20 on the casing C, comprises an enlarged base 32 that is sufficiently wide to be firmly brazed on the surface 27 of the plate 20.
  • each tab 30 is thickened and forms an outward protruding flange of the tabs.
  • each tab has at its end a transverse plane surface P extending transversely (substantially perpendicular to the longitudinal direction of the tab or the flame holder arm) and having a sufficiently large surface to be fixed firmly by soldering to the surface. 27 of the mounting plate 20.
  • the outer lateral surface of the flange 32 of each lug 30 includes a fillet 33, that is to say a concave shape having a rounded (or radiated) surface between the flange 32 and the flat portion 31 of the tab 30.
  • this rounded surface 33 conforms to the curvature zone 17 or 18 between the leg 7 or 8 of the arm and the fastening flange 9 or 10 folded at its end, as can be seen in FIGS. 5 and 6.
  • the device can be initially made in one piece, in particular by foundry, the plate being integral from the original side tabs which protrude perpendicularly from the plate (one piece).
  • the tabs 30 and the plate 20 are initially separated.
  • the procedure consists in assembling the support lugs 30, 30 'with the corresponding legs 7, 8 of the flame holder arm 1, then bringing back the arm 1 provided with the support lugs 30 on the plate 20 and to fix, in particular by brazing, the base 32 of the lugs 30 against the plate 20, as illustrated in FIG. 5.
  • This gives a post-combustion equipment comprising a flame holder arm 1 mounted on the support lugs 30, 30 and on the plate 20 of the device 40, ready to be fixed on the casing C.
  • the lateral lugs 30, 30 ' are held pressed against the internal face of the corresponding legs 7, 8 and fastened thereto in particular. by riveting, screwing or other means of assembly or fixing.
  • Each support lug 30 comprises, as illustrated in FIG. 4, fixing holes 34, 35 for fixing the side walls 7, 8 of the arm 1.
  • rivets 36 are engaged through holes in the legs of the CMC arm and through the mounting holes 34,35 in the side tabs 30 of the device 40.
  • the number and the diameter of the holes and rivets 36 is calculated according to the value of the mechanical forces to bear.
  • the second alternative advantageously makes it possible to remedy a problem of variation of the spacing of the legs 7-8 due to manufacturing tolerances of the flame holder arm 1.
  • the arms made of CMC generally have high manufacturing tolerances, such as the The spacing of the legs 7-8 can undergo variations of the order of a millimeter typically. Or the spacing of the legs 7-8 must be perfectly adjusted to the size occupied by the legs 30-30 'to obtain a solid fastening by riveting 36 and that the arm 1 does not undergo stress at rest.
  • each lateral leg 30,30 'of support on the corresponding leg 7,8 of the flame holder arm 1 is planned to fix each lateral leg 30,30 'of support on the corresponding leg 7,8 of the flame holder arm 1, before securing the support legs 30 and 30' positioned longitudinally on the transverse plate 20.
  • This overcomes the manufacturing tolerance problem of the legs 7,8 of the flame holder arm 1.
  • FIG. 6A shows a flame holder arm 1 made of CMC fixed to a casing with the aid of the fixing device 40 according to the invention.
  • the enlarged view 6B shows, schematically, the distribution of the compression stresses C, S and traction T, E in the arm 1 and in the tabs 30 of the fixing device 40, when the arm 1 undergoes a lateral force, in the direction indicated by an arrow F on the view 7A.
  • the lateral lugs 30 thus constitute lateral reinforcements for the legs 7, 8 of the arm 1 which oppose bending or twisting of the arm at its base.
  • the legs 7-8 and the flanges 9-10 of the arm 1 undergo less stress and deformation which reduces the risk of tearing or deterioration.
  • the fixing device 40 advantageously makes it possible to maintain laterally, to support and reinforce the flame holder arm 1 against the lateral forces F and the risks of bending or twisting.
  • Figure 7 illustrates another embodiment of fastener 50 according to the invention, wherein the device 50 further serves burner ring support.
  • the lateral lugs 30, 30 'of the device 50 are extended longitudinally and connected to at least one, here two, support flanges 51, 52 of the burner ring segment.
  • the tabs 30, 30 'and the flanges 51, 52 may be formed in one piece, in particular in the form of a single support piece 50, obtained from a foundry.
  • the support piece 50 is composed, in addition to the two lateral tabs 30-30 'extending in a longitudinal direction, a bridge 53 joining transversely the two legs lateral 30-30 'and transverse flanges 51,52 supporting burner ring segments.
  • FIG. 8 shows that the lateral lugs 30, 30 'extend longitudinally along a length L corresponding to the height H between the level of the fixing flanges 9, 10 at the end of the arm 1 and the level of the ring sector. on the arm (which advantageously allows to relieve the forces suffered by the legs 7-8 of the arm).
  • the device comprises two flanges 51,52 projecting downstream and connected by their upstream edge to the downstream edges of the two longitudinal tabs 30 and 30 '.
  • the two flanges 51 and 52 constituted here by two plates arranged dihedron, form two bearing faces disposed in symbol ⁇ open downstream.
  • the support flanges 51, 52 enable the assembly of one or two burner ring segments.
  • the support flanges 51, 52 may be pierced with fixing holes to assemble the ring segments.
  • Figure 7 also shows that one of the ring support flanges 52 is disposed at the level of the transverse wall of the bridge 53 which joins the two longitudinal tabs.
  • the transverse flange 52 constitutes an extension of the bridge 53 in the downstream half-space.
  • the bridge 53 and the flange 52 are located here at the top of the part 50 (towards the axis of the reactor) and form a transverse connection between the summit ends of the side flaps of the part.
  • the other flange 51 is disposed transversely at an intermediate level between the base 32 and the top 53 of the workpiece.
  • the bridge 53 strengthens the transverse connection of the legs 30-30 'and stiffens the device 50.
  • the bridge 53 forms a transverse wall which advantageously makes it possible to separate the primary flow F1 of hot gases which propagates in the central part of the turbojet and the secondary flow F2 of fresh air which is propagated on the periphery of the turbojet engine.
  • the primary flow is formed by the flue gases from the combustion of the fuel with air in the chambers of combustion of the turbojet and ejected to the output of the turbojet engine.
  • the secondary flow is formed of fresh air, that is to say of unburned air and relatively cold temperature compared to the hot gases of the primary flow.
  • This fresh air can serve precisely as an oxidizer for post-combustion, especially the burner ring and / or the flame holder arms.
  • the primary and secondary streams do not mix.
  • it is necessary to prevent leakage of secondary flow of pressurized fresh air to the vein of the primary flow so as not to reduce the pressure of the fresh air flow and to obtain an optimal supply of a ventilation jacket arranged in the flame holder arm.
  • it should be avoided that the flow of fresh air is polluted by the flue gases.
  • this secondary cool air flow F2 propagates at the periphery of the turbojet engine TR, in particular between a confluence sheet and the outer shell of the casing.
  • the transverse wall formed by the bridge 53 advantageously makes it possible to ensure the continuity of the partitioning of the confluence sheet which separates the peripheral secondary vein in which the flow of fresh air F2 circulates with respect to the main stream into which the F1 flue gas flow.
  • Such a configuration ensures a seal between the vein of the secondary flow F2 at the periphery and the vein of the primary flow F1 in the center.
  • the transverse wall formed by the bridge 53 is disposed at the top portion of the support piece 50 and in the extension of one of the two support flanges 52, more precisely in the extension of the top flange 52 which supports the inner side of the burner ring segments.
  • the burner ring segments are then entirely on the side of the wall of the bridge 53 exposed to the secondary flow of fresh air.
  • the secondary flow of fresh air F2 can thus reach the bottom of the burner ring segments 12 without losing pressure or mixing with flue gas.
  • the flow Secondary air fresh air can achieve without losing pressure at the entrance of a ventilation jacket 56 (see Fig. 6A-6B) which is engaged and fixed at an orifice 54 arranged in the bridge.
  • This first orifice 54 serves to engage and secure the tubular ventilation jacket 56 which is inserted into the bottom of the flame-holder arm 1 in the form of a gutter.
  • the ventilation jacket 56 makes it possible to bring the flow of fresh cooling air to the bottom of the flame holder arm 1, this air flow also serving as an oxidizer for the afterburner.
  • Figure 7 also shows that the wall of the bridge 53 can be pierced with another orifice 55 to accommodate another element of the afterburner equipment.
  • This second orifice 55 serves for the passage and the maintenance in place of a ramp 57 of fuel injection inside the flame holder arm 1 (see FIG. 6B ).
  • the ramp 57 injects fuel jets, laterally, along the arm 1.
  • Such a support piece 50 may, from the outset, be integral with a fixing plate 20, as previously described, to form a single-piece fixing device obtained for example by casting a single piece.
  • the device can be made in two separate parts: on the one hand, the support piece 50 as illustrated in Figure 7 and, on the other hand, the mounting plate 20 as previously exposed.
  • the support piece 50 and the plate 20 are joined and secured, in particular by brazing.
  • FIG. 8 shows that, according to an improvement, the flame holder arm 1 can be fixed directly to the plate 20, the plate 20 being provided with means 60, 60 'for immobilizing the fixing flanges 9, 10 at the base of the flame holder arm 1. It is intended to immobilize the two flanges 9,10 in two grooves or two lateral grooves formed in two flanges 61 of the plate 20 and acting as lateral jaws.
  • the plate 20 has two lateral edges 61 projecting perpendicularly from the transverse plate.
  • Each edge 61 protruding longitudinally has on its inner side, a groove 62 arranged under a flanged edge 63 of the inner side of the plate 20, which provides a hook function.
  • the two lateral grooves 62 are dimensioned so that the flanges 9,10 of the flame holder arm 1 slide inside while inserting a compression wedge.
  • the flanges 9, 10 are immobilized in the lateral grooves 62 of the plate 20 by means of clamping screws 64 'which are engaged in threaded holes.
  • the holes are threaded, parallel to the longitudinal axis, in the flanges 63 and open into the corresponding groove 62.
  • the clamping screws 64 ' pass through the flanges 63 in the longitudinal direction to open into the groove 62.
  • the screws 64 press on the compression wedge which clamps the flange 9 or 10 to immobilize it.
  • the compression wedge may be provided with a rounded side to fit the outside of the curvature 17 or 18 of the material between the flange 9 or 10 and the leg 7 or 8 of the flame holder arm 1.
  • the flame holder arm 1 can then be fixed on the device, on the one hand by joining the legs 7 and 8 with the lateral lugs 30, 30 'using fixing means (in particular by riveting or screwing) and on the other hand, by immobilizing the flanges 9 and 10 of the arm 1 in the flanges 60 and 60 'of the plate 20, the latter being secured to the legs 30,30' of the device.
  • the indented legs 7 and 8 of the arm 1 which comprise the areas 17, 18, 19 most exposed to the risk of deterioration, are then structurally reinforced by the metal tabs 30 and 30 '. of the fixing device according to the invention.
  • the lateral forces F applied to the arm 1 are transferred and at least partly taken up S and E by the lateral lugs 30, 30 'of the fixing device and are transmitted directly to the casing C.
  • the legs 7-8 and the flanges 9-10 of the flame holder arm 1 are no longer subject to stresses that may cause their deformation (bending, twisting) or their deterioration under the effect of lateral forces.
  • the zones 17 and 18 of fold or curvature of the flanges 9 and 10 for fixing the arm 1 come to rest against the rounded surfaces 33 arranged on the flanges 32 at the base of the legs 30 and 30 'for supporting the device according to the invention.
  • the outer surface of the curvature area 17,18 of each flange 9,10 may be in contact with the rounded edge of the compression shim.
  • the fixing of the flame holder arm 1 on the casing C by means of the device according to the invention makes it possible to remedy the risks of deterioration of the arm 1 (in particular by bending, twisting, folding or tearing).
  • the flame holder arm 1 can be secured at several connection points with the fixing device 40.
  • fixing 34,35 on each lug 30, may be added the extended surfaces of the immobilizing wedges 60,60 'of the flanges 9,10.
  • the mass and the forces exerted by the segments of the burner ring are no longer supported by the flame holder arm 1, but directly transmitted by the support member 50 and the mounting plate 20 to the casing.
  • the invention makes it possible to have a 40/50 device for fixing a flame-holder arm 1 that is easy to disassemble as to be fixed on the casing C, and makes it possible to form a complete post-combustion equipment which is easily exchangeable.
  • the device 40/50 for fixing the flame holder arm according to the invention thus offers real advantages without significantly increasing the mass of the afterburner equipment.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP06077035.1A 2005-12-05 2006-11-16 Vorrichtung zur Befestigung eines Flammenhalterarms zu einer Nachverbrennungskammerwand und Anlage mit einer derartigen Vorrichtung Active EP1803999B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0512294A FR2894326B1 (fr) 2005-12-05 2005-12-05 Dispositif de fixation d'un bras accroche-flammes sur un carter de post-combustion et equipement comportant un tel dispositif

Publications (2)

Publication Number Publication Date
EP1803999A1 true EP1803999A1 (de) 2007-07-04
EP1803999B1 EP1803999B1 (de) 2015-11-04

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EP06077035.1A Active EP1803999B1 (de) 2005-12-05 2006-11-16 Vorrichtung zur Befestigung eines Flammenhalterarms zu einer Nachverbrennungskammerwand und Anlage mit einer derartigen Vorrichtung

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US (1) US7886542B2 (de)
EP (1) EP1803999B1 (de)
FR (1) FR2894326B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010023319A2 (fr) * 2008-09-01 2010-03-04 Snecma Dispositif de fixation d'un bras accroche flammes sur un carter de post-combustion

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2950416B1 (fr) * 2009-09-23 2012-04-20 Snecma Dispositif accroche-flammes comprenant un support de bras et un ecran de protection thermique monoblocs
US8820691B2 (en) * 2012-06-28 2014-09-02 Electro-Motive Diesel, Inc. Adjustable support structure for an after-treatment component
FR3032519B1 (fr) * 2015-02-10 2017-02-24 Herakles Dispositif accroche-flamme

Citations (4)

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Publication number Priority date Publication date Assignee Title
US5090198A (en) * 1990-05-04 1992-02-25 Rolls-Royce Inc. & Rolls-Royce Plc Mounting assembly
US5359849A (en) * 1992-12-16 1994-11-01 Societe Nationale D'etude Et De Construction De Moteurs D'aviation Afterburner assembly for a gas turbine engine
EP0713057A1 (de) * 1994-11-16 1996-05-22 ROLLS-ROYCE plc Hochtemperatur Montage
FR2865502A1 (fr) * 2004-01-23 2005-07-29 Snecma Moteurs Bras monobloc accroche-flammes pour un dispositif de post combustion d'un turboreacteur a double flux

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Publication number Priority date Publication date Assignee Title
US5396763A (en) * 1994-04-25 1995-03-14 General Electric Company Cooled spraybar and flameholder assembly including a perforated hollow inner air baffle for impingement cooling an outer heat shield
US6463739B1 (en) * 2001-02-05 2002-10-15 General Electric Company Afterburner heat shield

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090198A (en) * 1990-05-04 1992-02-25 Rolls-Royce Inc. & Rolls-Royce Plc Mounting assembly
US5359849A (en) * 1992-12-16 1994-11-01 Societe Nationale D'etude Et De Construction De Moteurs D'aviation Afterburner assembly for a gas turbine engine
EP0713057A1 (de) * 1994-11-16 1996-05-22 ROLLS-ROYCE plc Hochtemperatur Montage
FR2865502A1 (fr) * 2004-01-23 2005-07-29 Snecma Moteurs Bras monobloc accroche-flammes pour un dispositif de post combustion d'un turboreacteur a double flux

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010023319A2 (fr) * 2008-09-01 2010-03-04 Snecma Dispositif de fixation d'un bras accroche flammes sur un carter de post-combustion
FR2935464A1 (fr) * 2008-09-01 2010-03-05 Snecma Dispositif de fixation d'un bras accroche flammes sur un carter de post-combustion.
WO2010023319A3 (fr) * 2008-09-01 2010-05-14 Snecma Dispositif de fixation d'un bras accroche flammes sur un carter de post-combustion
RU2508508C2 (ru) * 2008-09-01 2014-02-27 Снекма Устройство крепления стойки стабилизатора факела пламени на корпусе форсажной камеры
US8769958B2 (en) 2008-09-01 2014-07-08 Snecma Device for attaching a flame-holder arm to an afterburner housing

Also Published As

Publication number Publication date
FR2894326B1 (fr) 2008-01-11
US20070125086A1 (en) 2007-06-07
EP1803999B1 (de) 2015-11-04
US7886542B2 (en) 2011-02-15
FR2894326A1 (fr) 2007-06-08

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