WO2014037675A1 - Procede de fabrication d'un carter en materiau composite pour moteur a turbine a gaz et carter ainsi obtenu - Google Patents
Procede de fabrication d'un carter en materiau composite pour moteur a turbine a gaz et carter ainsi obtenu Download PDFInfo
- Publication number
- WO2014037675A1 WO2014037675A1 PCT/FR2013/052061 FR2013052061W WO2014037675A1 WO 2014037675 A1 WO2014037675 A1 WO 2014037675A1 FR 2013052061 W FR2013052061 W FR 2013052061W WO 2014037675 A1 WO2014037675 A1 WO 2014037675A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- casing
- housing
- arms
- platform
- engine
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/005—Selecting particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/282—Selecting composite materials, e.g. blades with reinforcing filaments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/603—Composites; e.g. fibre-reinforced
- F05D2300/6033—Ceramic matrix composites [CMC]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/4932—Turbomachine making
- Y10T29/49323—Assembling fluid flow directing devices, e.g., stators, diaphragms, nozzles
Definitions
- the present invention relates to crankcases, in particular exhaust housings, fitted to gas turbine engine aircraft, and in particular turbojet engines or turboprop engines.
- the exhaust casing performs several functions. It provides a structural function by hosting a rear suspension to allow the attachment of the engine on the fuselage of the aircraft. It also provides an aerodynamic function to guide the primary flow from the engine. Finally, it still provides a function of passage of easements to allow the supply of air and oil of various components of the engine.
- an exhaust casing is formed of an inner ferrule mounted around a bearing support, of an outer ferrule of diameter greater than the inner ferrule and disposed around it while being coaxial therewith, and a plurality of casing arms which extend radially between these ferrules and which are fixed at their radial ends thereon.
- the outer shell is intended to receive the rear suspension by means of screed-shaped fittings.
- the casing arms connecting the ferrules together serve in particular to guide the primary flow from the engine.
- some of these housing arms are hollow to be traversed by ducts in which circulates air or oil for engine components.
- the exhaust casing of a gas turbine engine has the main disadvantage of being a relatively heavy piece, because metal, which is particularly detrimental in terms of fuel consumption of the aircraft.
- this object is achieved by a method of manufacturing a casing made of composite material for a gas turbine engine, the method comprising:
- an outer shell of composite material comprising an annular platform intended to delimit externally the flow channel of the gaseous flow passing through the housing and an annular flange intended to allow the housing to be fixed upstream on a housing of engine turbine;
- Such a method makes it possible to obtain a casing made of composite material whose mass is considerably lighter with respect to a metal casing (the volume ratio between a composite material such as the CMC - ceramic matrix composite) and a metal alloy is approximately 4).
- the method according to the invention provides a simplified assembly since it comprises only three independent subassemblies, namely a subassembly for the outer shell, a subassembly for the inner shell and a subassembly consisting of the arms. of crankcase.
- the ferrules are each made from a fibrous preform obtained by winding a fibrous texture in several layers superimposed on a mandrel, the fibrous preform being densified by a matrix.
- each casing arm is made from a fibrous blank obtained by three-dimensional weaving, leaving two zones of delimitation in the thickness of the blank. at each end thereof, the fibrous blank being shaped by folding the untied portions to form a fiber preform with a preform portion corresponding to the one-piece housing arm blade with two corresponding preform portions each at a platform of the casing arm, the fibrous preform thus obtained being densified by a matrix.
- connection zone between the loosened portions and the bonded portions of the fiber blank may be filled with a ceramic fiber felt prior to densification of the fiber preform.
- the casing arms can be held assembled on the outer shell and on the inner shell by brazing, co-densification or mechanical connection of their respective platforms in the openings of the rings.
- the casing arms are first assembled on one of the ferrules by radially inserting their respective platforms into the openings of the ferrule, then the other ferrule is assembled on the pre-assembly thus obtained by sliding the opposite platforms of the crank arms in the corresponding openings of this other ferrule.
- the invention also relates to a casing made of composite material for a gas turbine engine, comprising an outer shell comprising an annular platform intended to delimit externally the flow channel of the gaseous flow passing through the casing and an annular flange intended to allow fixing the casing upstream on a turbine casing of the engine, an inner ferrule of smaller diameter than the outer ferrule and having an annular platform intended to delimit inside the flow passage of the gas flow passing through the housing and a flange annular, and a plurality of casing arms each having a blade ending at each radial end by a platform, the platforms of the casing arms being assembled on respective platforms of ferrules.
- the platforms of the ferrules each comprise a plurality of openings in which are inserted the platforms of the crank arms.
- the openings of at least one of the ferrules may be open at one axial end of the corresponding platform.
- the flange of the outer shell may comprise an upstream shoulder for fixing the casing upstream on the turbine casing and a downstream shoulder for fixing the housing downstream on a nozzle of the engine.
- the flange of the outer ferrule may extend axially downstream beyond a trailing edge of the crank arms to form the engine nozzle.
- the flange of the inner shell may comprise an upstream shoulder for fixing the casing upstream on a closure cap and a downstream shoulder for fixing the casing downstream on a central body of the engine.
- the flange of the inner ferrule may extend axially downstream beyond a trailing edge of the crank arms to form a central body of the engine.
- the blade of at least one of the crankcase arms can be hollow to pass the servitudes of the engine, such as air and oil supply ducts of different components thereof.
- the rings and the casing arms are of ceramic matrix composite material.
- the housing forms a single piece.
- the casing may constitute an exhaust casing.
- the invention also relates to an aeronautical gas turbine engine comprising a casing as defined above.
- FIG. 1 is a schematic perspective view of a gas turbine engine exhaust casing exhaust
- Figure 2 is a radial sectional view of Figure 1;
- FIG. 7 is a radial sectional view of an exhaust casing according to an alternative embodiment of the invention. Detailed description of the invention
- the invention applies to the manufacture of any part or casing having an outer shell and an outer shell interconnected by a plurality of casing arms.
- Such an exhaust casing 10 is illustrated schematically in FIG. 1.
- it comprises in particular an axisymmetric outer shell 100 centered on a longitudinal axis XX of the turbojet engine, an axisymmetric inner shell 200 of smaller diameter than the outer shell and disposed coaxially therein, and a plurality of housing arms 300 radially interconnecting the ferrules 100, 200 therebetween.
- the outer ring 100 comprises an annular platform 104 located on the inner side which is intended in particular to delimit externally the stream 12 of flow of the gas stream passing through the exhaust casing.
- the outer shell comprises an annular flange 106, this flange having an upstream shoulder 108 to ensure attachment upstream of the exhaust casing on a turbine casing of the engine (not shown), and a downstream shoulder 110 intended for ensure a downstream attachment of the exhaust casing on a motor nozzle (not shown).
- the inner shell 200 comprises an annular platform 202 located on the outer side which is intended in particular to delimit inside the flow line 12 of the gas flow passing through the exhaust casing.
- the inner ferrule On the inner side, the inner ferrule comprises an annular flange 204, this flange having an upstream shoulder 206 for attachment upstream of the exhaust casing on a closing cap of the enclosures of the low-pressure turbine of the turbojet engine and a downstream shoulder 208 for attachment downstream of the exhaust casing on a central body (or "plug" in English) of the engine.
- the upstream shoulder of its annular flange may be intended to be connected to said bearing.
- the outer and inner shells 100 and 200 are made of composite material, preferably ceramic matrix composite material (CMC).
- CMC ceramic matrix composite material
- the ferrules may each be made from a fibrous preform obtained either by winding a fibrous texture in several layers superimposed on a mandrel, or by winding fibers, the fibrous preform thus obtained being subsequently densified by a matrix.
- the respective platform and the flange of the ferrules are made from a single piece.
- the platform and the flange of the ferrules can be obtained from the same fiber preform (by creating a delieration in the thickness of that at each of its axial ends to obtain a preform with a preform portion corresponding to the platform in one piece with a preform portion corresponding to the flange).
- the platform and the flange of the ferrules are made from two different fibrous preforms which are wound on the same mandrel and possibly needling to bind them.
- the casing arms 300 are regularly distributed around the longitudinal axis XX of the turbojet and are for example 16 in number. They each comprise a blade 302 (which can be solid or hollow when it is necessary to pass ducts therein. air circulation or oil) which ends at each radial end by a platform 304 (see Figure 3).
- each casing arm 300 are also made of composite material, preferably CMC.
- each casing arm can be made from a fibrous blank obtained by three-dimensional weaving, leaving two zones of delimitation in the thickness of the fibrous blank at each end thereof.
- the fiber blank is then shaped by folding back its untied portions to form a fiber preform with a preform portion corresponding to the blade of the one-piece housing arm with two preform portions each corresponding to a crankcase platform. .
- the fibrous preform thus obtained is subsequently densified by a matrix.
- connection zone between the untied parts and the bonded parts of the fibrous blank from which the casing arms are made can be filled by a felt 306, for example made of SiC-type ceramic fibers, prior to the densification of the fibrous preform.
- the casing arms 300 thus formed are assembled on the rings 100, 200 to form an exhaust casing as described below.
- openings 112 are formed in the platform 104 of the outer shell 100. These openings 112 are each intended to receive the platform 304 of a casing arm 300.
- openings 210 are also made in the platform 204 of the inner shell 200 to receive the opposite platforms of the crank arms (see Figure 6).
- openings 112, 210 are of complementary shape to the platforms 304 of the housing arms that they are intended to receive and have a depth substantially corresponding to the thickness of these platforms. Moreover, they can be made by machining the corresponding platform after densification thereof.
- the casing arms 300 are assembled on the latter.
- the housing arms are first assembled on the outer shell 100 by radially inserting their respective platforms 304 in the openings 112 of the outer shell ( Figure 5).
- the crank arms are held in this position and the inner shell 200 is mounted on this pre-assembly by sliding the opposite platforms of the housing arms in the corresponding openings 210 of the inner ring ( Figure 6).
- the casing arms are then held assembled on the two rings by brazing, co-densification or mechanical connection (countersunk screw type) of their respective platforms in the openings of the ferrules.
- crank arms require that the openings 210 of the inner ferrule 200 be open at an axial end of the corresponding platform (namely here the downstream end).
- An exhaust casing 10 made of a composite material such as that represented in FIG. 1 is thus obtained.
- This exhaust casing has the particularity of forming a single piece, that is to say that it is made in one piece with its ferrules and crank arms.
- the exhaust casing 10 'made of composite material may have shape arrangements at the respective flanges of its ferrules.
- the flange 106 'of the outer shell 100' extends axially downstream beyond a trailing edge 308 of the casing arms 300 to form the engine nozzle.
- the flange 204 'of the inner shroud 200' extends axially downstream beyond the trailing edge 308 of the housing arms 300 to form the central body of the engine.
- the realization of these flanges is also similar to the realization of the flanges of the ferrules of the exhaust casing previously described.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Composite Materials (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1504016.5A GB2519728B (en) | 2012-09-10 | 2013-09-06 | A method of fabricating a composite material casing for a gas turbine engine, and a casing obtained thereby |
| US14/427,199 US9784122B2 (en) | 2012-09-10 | 2013-09-06 | Method of fabricating a composite material casing for a gas turbine engine, and a casing obtained thereby |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1258449A FR2995344B1 (fr) | 2012-09-10 | 2012-09-10 | Procede de fabrication d'un carter d'echappement en materiau composite pour moteur a turbine a gaz et carter d'echappement ainsi obtenu |
| FR1258449 | 2012-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014037675A1 true WO2014037675A1 (fr) | 2014-03-13 |
Family
ID=47178140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2013/052061 Ceased WO2014037675A1 (fr) | 2012-09-10 | 2013-09-06 | Procede de fabrication d'un carter en materiau composite pour moteur a turbine a gaz et carter ainsi obtenu |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9784122B2 (fr) |
| FR (1) | FR2995344B1 (fr) |
| GB (1) | GB2519728B (fr) |
| WO (1) | WO2014037675A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2787179A1 (fr) * | 2013-04-05 | 2014-10-08 | Rolls-Royce plc | Assemblage d'aube, procédé de fabrication et assemblage de soufflante de moteur à turbine à gaz associés |
| WO2016030608A1 (fr) * | 2014-08-26 | 2016-03-03 | Snecma | Aube de redresseur en matériau composite à brides de fixation décalées pour moteur à turbine à gaz |
| WO2018009264A1 (fr) * | 2016-07-05 | 2018-01-11 | General Electric Company | Ensemble entretoise pour moteur d'avion |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2924855A1 (fr) * | 2015-04-29 | 2016-10-29 | Rolls-Royce Corporation | Sillage de pale a distorsion trapezoidale |
| FR3063313B1 (fr) * | 2017-02-28 | 2022-10-28 | Safran Aircraft Engines | Agencement d'entree de moteur d'aeronef comprenant un decoupleur mecanique |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643636A (en) * | 1985-07-22 | 1987-02-17 | Avco Corporation | Ceramic nozzle assembly for gas turbine engine |
| EP1764481A2 (fr) * | 2005-09-19 | 2007-03-21 | General Electric Company | Aube statorique à profil céramique et plateformes métalliques |
| EP2412929A1 (fr) * | 2009-03-26 | 2012-02-01 | IHI Corporation | Ensemble aube de stator de turbine cmc |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4108562A (en) * | 1977-11-09 | 1978-08-22 | Kraft, Inc. | Releasable coupling |
| US4993918A (en) * | 1989-05-19 | 1991-02-19 | United Technologies Corporation | Replaceable fairing for a turbine exhaust case |
| US5474419A (en) * | 1992-12-30 | 1995-12-12 | Reluzco; George | Flowpath assembly for a turbine diaphragm and methods of manufacture |
| US5494404A (en) * | 1993-12-22 | 1996-02-27 | Alliedsignal Inc. | Insertable stator vane assembly |
| US5586864A (en) * | 1994-07-27 | 1996-12-24 | General Electric Company | Turbine nozzle diaphragm and method of assembly |
| US6547518B1 (en) * | 2001-04-06 | 2003-04-15 | General Electric Company | Low hoop stress turbine frame support |
| US7093359B2 (en) * | 2002-09-17 | 2006-08-22 | Siemens Westinghouse Power Corporation | Composite structure formed by CMC-on-insulation process |
| FR2871847B1 (fr) * | 2004-06-17 | 2006-09-29 | Snecma Moteurs Sa | Montage d'un distributeur de turbine sur une chambre de combustion a parois en cmc dans une turbine a gaz |
| US7648336B2 (en) * | 2006-01-03 | 2010-01-19 | General Electric Company | Apparatus and method for assembling a gas turbine stator |
| GB0703827D0 (en) * | 2007-02-28 | 2007-04-11 | Rolls Royce Plc | Rotor seal segment |
| US8206087B2 (en) * | 2008-04-11 | 2012-06-26 | Siemens Energy, Inc. | Sealing arrangement for turbine engine having ceramic components |
| FR2940350B1 (fr) * | 2008-12-23 | 2011-03-18 | Snecma | Roue mobile de turbomachine a aubes en materiau composite munie d'un anneau ressort. |
| EP2204547B1 (fr) * | 2008-12-29 | 2013-12-11 | Techspace Aero | Virole extérieure et procédé de montage par soudage entre cette virole et une aube fixe |
| US20110206522A1 (en) * | 2010-02-24 | 2011-08-25 | Ioannis Alvanos | Rotating airfoil fabrication utilizing cmc |
| FR2981602B1 (fr) | 2011-10-25 | 2017-02-17 | Snecma Propulsion Solide | Procede de fabrication d'un secteur de distributeur de turbine ou redresseur de compresseur en materiau composite pour turbomachine et turbine ou compresseur incorporant un distributeur ou un redresseur forme de tels secteurs |
| FR2983519B1 (fr) | 2011-12-01 | 2015-07-24 | Snecma Propulsion Solide | Aube de turbine a pale creuse en materiau composite, turbine ou compresseur ayant un distributeur ou redresseur forme de telles aubes et turbomachine les comprenant |
-
2012
- 2012-09-10 FR FR1258449A patent/FR2995344B1/fr active Active
-
2013
- 2013-09-06 GB GB1504016.5A patent/GB2519728B/en active Active
- 2013-09-06 US US14/427,199 patent/US9784122B2/en active Active
- 2013-09-06 WO PCT/FR2013/052061 patent/WO2014037675A1/fr not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643636A (en) * | 1985-07-22 | 1987-02-17 | Avco Corporation | Ceramic nozzle assembly for gas turbine engine |
| EP1764481A2 (fr) * | 2005-09-19 | 2007-03-21 | General Electric Company | Aube statorique à profil céramique et plateformes métalliques |
| EP2412929A1 (fr) * | 2009-03-26 | 2012-02-01 | IHI Corporation | Ensemble aube de stator de turbine cmc |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2787179A1 (fr) * | 2013-04-05 | 2014-10-08 | Rolls-Royce plc | Assemblage d'aube, procédé de fabrication et assemblage de soufflante de moteur à turbine à gaz associés |
| US9593586B2 (en) | 2013-04-05 | 2017-03-14 | Rolls-Royce Plc | Vane assembly and method of making the same |
| WO2016030608A1 (fr) * | 2014-08-26 | 2016-03-03 | Snecma | Aube de redresseur en matériau composite à brides de fixation décalées pour moteur à turbine à gaz |
| US10781708B2 (en) | 2014-08-26 | 2020-09-22 | Safran Aircraft Engines | Guide vane made from composite material, comprising staggered attachment flanges for a gas turbine engine |
| WO2018009264A1 (fr) * | 2016-07-05 | 2018-01-11 | General Electric Company | Ensemble entretoise pour moteur d'avion |
| US10385868B2 (en) | 2016-07-05 | 2019-08-20 | General Electric Company | Strut assembly for an aircraft engine |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2519728A (en) | 2015-04-29 |
| GB201504016D0 (en) | 2015-04-22 |
| US9784122B2 (en) | 2017-10-10 |
| GB2519728B (en) | 2019-10-30 |
| FR2995344B1 (fr) | 2014-09-26 |
| FR2995344A1 (fr) | 2014-03-14 |
| US20150226084A1 (en) | 2015-08-13 |
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