EP3987155A1 - Procédé de revêtement d'une aube de redresseur de turbomachine, aube de redresseur associée - Google Patents
Procédé de revêtement d'une aube de redresseur de turbomachine, aube de redresseur associéeInfo
- Publication number
- EP3987155A1 EP3987155A1 EP20785773.1A EP20785773A EP3987155A1 EP 3987155 A1 EP3987155 A1 EP 3987155A1 EP 20785773 A EP20785773 A EP 20785773A EP 3987155 A1 EP3987155 A1 EP 3987155A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thickness
- blade
- grooved
- coating
- paint
- 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
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 63
- 239000011248 coating agent Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 9
- 229920000642 polymer Polymers 0.000 claims abstract description 37
- 239000003973 paint Substances 0.000 claims abstract description 33
- 239000004814 polyurethane Substances 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000008021 deposition Effects 0.000 claims description 2
- 238000005488 sandblasting Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 230000002787 reinforcement Effects 0.000 description 10
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000012783 reinforcing fiber Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000009745 resin transfer moulding Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000001721 transfer moulding Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- 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
- F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
-
- 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
- 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
- F01D5/288—Protective coatings for blades
-
- 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
- F05D2230/00—Manufacture
- F05D2230/30—Manufacture with deposition of material
- F05D2230/31—Layer deposition
-
- 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
- F05D2230/00—Manufacture
- F05D2230/90—Coating; Surface treatment
-
- 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
- F05D2240/00—Components
- F05D2240/10—Stators
- F05D2240/12—Fluid guiding means, e.g. vanes
- F05D2240/121—Fluid guiding means, e.g. vanes related to the leading edge of a stator vane
-
- 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
- F05D2240/00—Components
- F05D2240/10—Stators
- F05D2240/12—Fluid guiding means, e.g. vanes
- F05D2240/122—Fluid guiding means, e.g. vanes related to the trailing edge of a stator vane
-
- 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
- F05D2250/00—Geometry
- F05D2250/10—Two-dimensional
- F05D2250/11—Two-dimensional triangular
Definitions
- the invention relates to the general field of turbomachines.
- the invention relates more particularly to a process for coating a turbomachine stator blade allowing the aerodynamic performance of said blade to be optimized.
- the invention also relates to a straightening vane provided with a coating.
- a bypass turbine engine comprises, at its upstream end, an air inlet supplying a fan which delivers an annular air flow which splits into two flows.
- Part of the flow is injected into a compressor which supplies a turbine driving the fan.
- the other part of the flow is injected into the atmosphere to provide part of the thrust of the turbomachine, after passing through a ring of fixed blades arranged downstream of the fan.
- stator blades made of a composite material, are manufactured using a known process called "RTM” (Resin Transfer Molding).
- the RTM process consists of injecting a liquid resin into layers of dry reinforcing fibers preformed in the shape of the blade and placed in a closed mold placed under vacuum. After the molding step, it is known practice to deposit a metal reinforcement, in the form of a foil, on the leading edge of the blade in order to protect it from erosion and / or impact. possible (birds, gravel, ice, sand, etc.). Alternatively, the metal reinforcement is placed on the layers of reinforcing fibers preformed during the resin injection step.
- These grooves are oriented in the direction of flow of the air flow and reduce the friction generated by the turbulent boundary layers on the surface of the blades exposed to the secondary flow.
- the grooves make it possible to reduce between 5 and 10% of the frictional drag generated by the turbulent boundary layers, they can also cause an increase in friction when it comes to laminar boundary layers.
- the grooves can generate significant aerodynamic losses if they act on detached boundary layers or more generally on non-oriented chaotic flows.
- a first aspect of the invention relates to a process for coating a turbomachine stator blade comprising a foot and a head, an extrados face and an intrados face connected to each other by a leading edge and an edge of leak.
- the coating process according to the first aspect comprises the steps
- the coating process according to the invention makes it possible to obtain a straightener blade having a grooved area on the surfaces exposed to a turbulent flow and a substantially flat area, ie the paint layer, on the exposed surfaces. to laminar flow.
- the presence of said zones on one of the surfaces of the blade makes it possible to reduce the frictional drag generated by the secondary flow as it passes over the exposed surfaces of the blade.
- the fact that the paint layer is in the continuity of the grooved zone makes it possible to limit the steps in the surface transitions and therefore to limit the aerodynamic losses associated with the presence of such steps.
- the steps consisting in fully covering the face of the blade with a polymer coating provided with grooves and then in removing the grooves on a determined area of the polymer coating make it possible to simplify the integration of the polymer coating on dawn.
- keeping part of the polymer coating, i.e. the non-grooved area, in an area where grooves are not desired limits the amount of paint needed to fill the thickness of the polymer coating previously removed. Thus, this makes it possible to reduce the manufacturing costs as well as the risks of non-compliance due to the presence of the paint layer.
- the coating process according to the first aspect of the invention can have one or more additional characteristics among the following, considered individually or in any technically possible combination.
- the step of removing the grooves is carried out by a sanding operation on part of the polymer coating intended to form the non-grooved zone.
- the sandblasting operation is carried out at a pressure greater than 2.5 bars.
- the coating process comprises a step of depositing a protective film on a portion of the polymer coating intended to form the grooved area.
- a second aspect of the invention relates to a turbomachine rectifier blade comprising a foot and a head, an extrados face and an intrados face interconnected by a leading edge and a trailing edge.
- polymer comprising: o a grooved zone of thickness e1, o a non-grooved zone of thickness e2 less than the thickness e1 of the grooved zone,
- a layer of paint, of thickness e3 covers the non-grooved area so that the thickness of the layer of paint superimposed on the non-grooved area is substantially equal to the thickness e1 of the grooved area.
- the rectifier vane according to the second aspect of the invention may have one or more additional characteristics among the following, considered individually or in any technically possible combination. .
- the polymer coating is made of polyurethane.
- the paint layer is in
- the paint layer extends over the extrados face, along the root of the blade.
- the paint layer extends over the extrados face, along the leading edge.
- the invention according to a third aspect relates to a rectifier
- turbomachine comprising at least one blade according to the second aspect of the invention.
- FIG. 1 illustrates a longitudinal sectional view of a turbomachine
- FIG. 2 illustrates a turbomachine stator blade according to a first embodiment of the invention
- FIG. 3a is a block diagram illustrating the steps of the method of
- FIG. 4 illustrates a turbomachine stator blade according to a
- FIG. 1 shows a schematic representation in longitudinal section of a turbomachine 1 with double flow.
- the terms “internal” and “external”, “axial” and “radial”, and their derivatives, are defined with respect to the longitudinal axis A of the turbomachine 1.
- a turbomachine 1 bypass has a longitudinal axis A and comprises an outer casing 10 inside which are arranged, from upstream to downstream, a fan 12, a low pressure compressor 14 , a high pressure compressor 16, a combustion chamber 18, a high pressure turbine 20, a low pressure turbine 22 and an exhaust cone 24.
- An inner casing 28 is arranged in the outer casing 10, around the compressors 14 and 16, of the combustion chamber 18 and of the turbines 20 and 22.
- a rectifier 30 extends downstream of the fan 12, between the inner 28 and outer 10 casings, in the region of the compressors 14 and 16.
- the inner casing 28 divides the air flow accelerated by the
- blower 12 between a primary flow Fp which supplies the compressors 14 and 16, and a secondary flow Fs which flows between the inner 28 and outer 10 casings and is thus ejected from the turbomachine 1 after passing through the rectifier 30 to supply a part of the thrust.
- the rectifier 30, also designated by the acronym OGV for "Outlet
- FIG. 2 illustrates a blade 100 of a rectifier 30 according to a first mode of
- the blade 100 of the rectifier 30 has an edge
- leading edge 101 and a trailing edge 102, extending between a radially inner end 103, called the root of the blade 100, and a radially outer end 104, called the head of the blade 100.
- the leading edge 101 and the trailing edge 102 delimit an extrados face 105 and an intrados face 106.
- the vane 100 is for example manufactured using a molding process called RTM for "Resin Transfer Molding" during which a resin liquid, preferably of the epoxy type, is injected into layers of dry reinforcing fibers, in particular carbon, preformed substantially in the shape of the blade 100 and placed in a closed mold placed under vacuum.
- RTM Resin Transfer Molding
- a metal reinforcement 112 for example made of Nickel-Cobalt alloy.
- the metal reinforcement 112 is preferably injected onto the preform in layers of reinforcing fibers during the injection of the liquid resin.
- a film of adhesive is positioned between the metal reinforcement 112 and the preform in order to maintain the metal reinforcement 112 on the leading edge 101.
- the extrados face 105 is fully covered with a polymer coating 107, for example polyurethane.
- a polymer coating 107 for example polyurethane.
- polymer coating 107 is attached to the upper surface by means of an adhesive applied to the leading edge 101.
- a portion 109 of the polymer coating 107 which will be called a grooved area, comprises a plurality of grooves 108 formed at the portion of the blade 100 intended to be exposed to turbulent flows.
- the grooved zone 109 of generally rectangular shape, is delimited by the head 104 of the blade 100 and the trailing edge 102 so as to cover approximately 75% of the extrados face 105.
- the grooves 108 also called riblets, have a shape, for example a U-shaped or V-shaped section, and
- the grooved zone 109 of the polymer coating 107 has a thickness e1 of between 200 and 300 ⁇ m.
- the other part 110 of the polymer coating 107 which will be called non-grooved zone, is substantially flat and covers approximately 25% of the extrados face 105.
- the non-grooved zone 110 extends along the root 103 of the blade 100 and along the metal reinforcement 112 so as to form an L.
- the non-grooved zone 110 extends in the direction of flow of the secondary flow Fs, ie for the portion which s 'extends along the foot 103 of the blade 100, and in a direction perpendicular to the direction of flow of the secondary flow Fs, ie for the portion which extends along the metal reinforcement 112.
- the non-grooved zone 110 has a thickness e2 of between 100 and 200 ⁇ m.
- non-grooved area 110 is covered with a layer of paint
- the paint layer 111 for example in polyurethane, intended to be exposed to laminar flows.
- the paint layer 111 has a thickness e3 such that when the paint layer 111 is applied to the non-grooved area 110, the thickness of the paint layer 111 superimposed on the non-grooved area
- the paint layer 111 has a thickness e3 of between 80 and 120 ⁇ m.
- the lower surface 106 is also covered with a
- FIG. 3a is a block diagram illustrating the steps of the coating process
- the coating process 200 according to the invention occurs after the manufacture of the blade 100 and the deposition of the metal reinforcement
- FIG. 3b illustrates part of the steps of the coating process shown schematically in FIG. 3a.
- a polymer coating 107, of thickness e1, having grooves 108 is applied over the entire upper surface 105.
- a film of glue is used to hold the polymer coating 107 on the upper surface 105 of the blade 100.
- part 109 of the polymer coating 107 is covered with a protective film, for example of polymer material.
- a third step 203 the grooves 108 present on the other part of the polymer coating 107, ie which is not covered by the protective film, are removed so as to obtain a non-grooved zone 110, of thickness e2, and a grooved zone 109.
- the removal of the grooves 108 is carried out by a sanding operation, preferably at a pressure greater than 2.5 bars.
- a fourth step 204 the protective film is removed from the part 109 of the polymer coating 107.
- the non-grooved zone 110 is coated with a layer of paint 111 of thickness e3 so that the thickness of the layer of paint 111 superimposed on the non-grooved zone 110 is substantially equal to the thickness e1 of the grooved zone 109.
- the layer of paint 111 of thickness e3 can be obtained by applying one or more layers of paint to the non-grooved zone 110.
- FIG. 4 illustrates a blade 100 of a rectifier 30 according to a second embodiment of the invention.
- the blade 100 according to the second embodiment is identical to the blade 100 according to the first embodiment, with the difference that the grooved areas
- non-grooved 110 are arranged in another way on the upper surface 105 of the blade 100.
- the grooved area 109 has a
- the grooved zone 109 of the polymer coating 107 has a thickness e1 of between 200 and 300 ⁇ m.
- the non-grooved area 110 of generally rectangular shape extends
- the non-grooved zone 110 extends only following the direction of flow of the secondary flow Fs.
- the non-grooved zone 110 has a thickness e2 of between 100 and 200 ⁇ m.
- the non-grooved zone 110 is also covered with a layer of paint 111 of thickness e3 so that the layer of paint 111 superimposed on the non-grooved zone 110 has a thickness substantially equal to the thickness e1 of the zone grooved 109.
- the paint layer 111 has a thickness e3 of between 80 and 120 ⁇ m.
- the dawn 100 of the rectifier 30 according to the second embodiment is the dawn 100 of the rectifier 30 according to the second embodiment.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Composite Materials (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1906647A FR3097452B1 (fr) | 2019-06-20 | 2019-06-20 | Procédé de revêtement d’une aube de redresseur de turbomachine, aube de redresseur associée |
PCT/FR2020/051055 WO2020254764A1 (fr) | 2019-06-20 | 2020-06-18 | Procédé de revêtement d'une aube de redresseur de turbomachine, aube de redresseur associée |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3987155A1 true EP3987155A1 (fr) | 2022-04-27 |
EP3987155B1 EP3987155B1 (fr) | 2023-08-16 |
Family
ID=67999900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20785773.1A Active EP3987155B1 (fr) | 2019-06-20 | 2020-06-18 | Procédé de revêtement d'une aube de redresseur de turbomachine, aube de redresseur associée |
Country Status (5)
Country | Link |
---|---|
US (1) | US11898466B2 (fr) |
EP (1) | EP3987155B1 (fr) |
CN (1) | CN114008298B (fr) |
FR (1) | FR3097452B1 (fr) |
WO (1) | WO2020254764A1 (fr) |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3762835A (en) * | 1971-07-02 | 1973-10-02 | Gen Electric | Foreign object damage protection for compressor blades and other structures and related methods |
US3874901A (en) * | 1973-04-23 | 1975-04-01 | Gen Electric | Coating system for superalloys |
US4594761A (en) * | 1984-02-13 | 1986-06-17 | General Electric Company | Method of fabricating hollow composite airfoils |
US5337568A (en) * | 1993-04-05 | 1994-08-16 | General Electric Company | Micro-grooved heat transfer wall |
US6341747B1 (en) * | 1999-10-28 | 2002-01-29 | United Technologies Corporation | Nanocomposite layered airfoil |
FR2860741B1 (fr) * | 2003-10-10 | 2007-04-13 | Snecma Moteurs | Procede de reparation de pieces metalliques notamment d'aubes de turbine de moteur a turbine a gaz |
US20110129351A1 (en) * | 2009-11-30 | 2011-06-02 | Nripendra Nath Das | Near net shape composite airfoil leading edge protective strips made using cold spray deposition |
US20130146217A1 (en) * | 2011-12-09 | 2013-06-13 | Nicholas Joseph Kray | Method of Applying Surface Riblets to an Aerodynamic Surface |
EP2971610B1 (fr) * | 2013-03-15 | 2020-01-15 | United Technologies Corporation | Enlèvement ou masquage sélectif de revêtement pour une piste de mise à la terre |
US10294803B2 (en) * | 2015-03-26 | 2019-05-21 | General Electric Company | Compositions and methods of deposition of thick environmental barrier coatings on CMC blade tips |
US10100656B2 (en) * | 2015-08-25 | 2018-10-16 | General Electric Company | Coated seal slot systems for turbomachinery and methods for forming the same |
FR3041375B1 (fr) * | 2015-09-22 | 2020-01-17 | Safran Aircraft Engines | Ensemble de circulation d'un flux d'un turboreacteur d'un aeronef |
US10450867B2 (en) * | 2016-02-12 | 2019-10-22 | General Electric Company | Riblets for a flowpath surface of a turbomachine |
CN108843402A (zh) * | 2018-06-08 | 2018-11-20 | 南京赛达机械制造有限公司 | 一种耐高温钛合金汽轮机叶片 |
-
2019
- 2019-06-20 FR FR1906647A patent/FR3097452B1/fr active Active
-
2020
- 2020-06-18 CN CN202080044957.XA patent/CN114008298B/zh active Active
- 2020-06-18 US US17/619,505 patent/US11898466B2/en active Active
- 2020-06-18 EP EP20785773.1A patent/EP3987155B1/fr active Active
- 2020-06-18 WO PCT/FR2020/051055 patent/WO2020254764A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
US20220235666A1 (en) | 2022-07-28 |
EP3987155B1 (fr) | 2023-08-16 |
FR3097452B1 (fr) | 2021-05-21 |
CN114008298A (zh) | 2022-02-01 |
WO2020254764A1 (fr) | 2020-12-24 |
FR3097452A1 (fr) | 2020-12-25 |
US11898466B2 (en) | 2024-02-13 |
CN114008298B (zh) | 2023-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3073053B1 (fr) | Aube mobile de turbine a conception amelioree pour turbomachine d'aeronef | |
CA2594753C (fr) | Tuyere d'ejection des gaz pour turbomachine a double flux ayant une section d'ejection ou de col variable par deplacement du capot secondaire | |
EP4077883B1 (fr) | Aube en materiau composite avec bord d'attaque rapporte a densite variable | |
FR3012515A1 (fr) | Aube composite de turbomachine | |
FR3096400A1 (fr) | Aube de turbomachine à bord d’attaque métallique intégré et procédé pour l’obtenir | |
EP4028248B1 (fr) | Dispositif de fabrication d'une piece creuse et une telle piece creuse | |
FR3049002A1 (fr) | Pale de turbomachine aeronautique comprenant un element rapporte en materiau composite formant bord de fuite et procede de fabrication d'une telle pale | |
EP3987155B1 (fr) | Procédé de revêtement d'une aube de redresseur de turbomachine, aube de redresseur associée | |
FR3049001B1 (fr) | Turbomachine aeronautique a helice non carenee munie de pales ayant un element rapporte en materiau composite colle sur leur bord d'attaque | |
FR3118891A1 (fr) | Fabrication d’un injecteur de turbine par fusion laser sur lit de poudre | |
FR3033180A1 (fr) | Assemblage d'une plateforme rapportee d'aube de soufflante sur un disque de soufflante | |
WO2020239732A1 (fr) | Joint d'étanchéité dynamique pour turbomachine comprenant une pièce abradable multicouche | |
FR3011269A1 (fr) | Aube de redresseur pour moteur a turbine a gaz a structure hybride | |
WO2021191559A1 (fr) | Aube de soufflante rotative de turbomachine, soufflante et turbomachine munies de celle-ci | |
FR3126914A1 (fr) | Aube en matériau composite comportant un renfort métallique et procédé de fabrication d’une telle aube | |
FR3096399A1 (fr) | Aube de turbomachine à bord d’attaque métallique intégré et procédé pour l’obtenir | |
FR3102086A1 (fr) | Aube en matériau composite comportant un renfort métallique, et procédés de fabrication et de réparation d’une telle aube | |
FR3103855A1 (fr) | Structure améliorée de bord d’attaque d’aube. | |
EP3899207B1 (fr) | Ensemble de turbomachine comprenant des aubes de soufflante à bord de fuite prolongé | |
BE1030046B1 (fr) | Roue mobile a plusieurs rangees d’aubes | |
EP4412810A1 (fr) | Procede de fabrication d'une aube pour une turbomachine d'aeronef | |
WO2022112678A1 (fr) | Preforme fibreuse d'un profil aerodynamique d'aube de turbomachine | |
WO2021209709A1 (fr) | Aube en matériau composite comportant des renforts métalliques, et procédé de fabrication d'une telle aube | |
WO2022069845A1 (fr) | Aube de turbine pour turbomachine d'aéronef, comprenant une plateforme pourvue d'un canal de réjection de flux primaire vers une cavité de purge | |
WO2023047030A1 (fr) | Procede de preparation d'un pied d'une aube de turbomachine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20220103 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20230307 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602020015926 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20230816 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1600253 Country of ref document: AT Kind code of ref document: T Effective date: 20230816 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231117 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231216 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231218 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231116 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231216 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231117 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602020015926 Country of ref document: DE |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20240521 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240521 Year of fee payment: 5 |
|
26N | No opposition filed |
Effective date: 20240517 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20240521 Year of fee payment: 5 |