EP3084131A1 - Aube, roue a aubes et turbomachine; procédé de fabrication de l'aube - Google Patents
Aube, roue a aubes et turbomachine; procédé de fabrication de l'aubeInfo
- Publication number
- EP3084131A1 EP3084131A1 EP14827829.4A EP14827829A EP3084131A1 EP 3084131 A1 EP3084131 A1 EP 3084131A1 EP 14827829 A EP14827829 A EP 14827829A EP 3084131 A1 EP3084131 A1 EP 3084131A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blade
- vein
- platform
- segment
- theoretical
- 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
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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
- F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
-
- 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
- F01D5/14—Form or construction
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/142—Shape, i.e. outer, aerodynamic form of the blades of successive rotor or stator blade-rows
- F01D5/143—Contour of the outer or inner working fluid flow path wall, i.e. shroud or hub contour
-
- 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
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
-
- 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
- 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
- F05D2220/00—Application
- F05D2220/30—Application in turbines
-
- 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
- F05D2230/50—Building or constructing in particular ways
-
- 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
- F05D2260/00—Function
- F05D2260/81—Modelling or simulation
Definitions
- the present invention relates to a blade provided for a turbomachine blade wheel comprising N blades arranged around a wheel axle; a first end of the blade having a first platform having a surface, called a vein, on the side of a blade of the blade.
- N is here an integer equal to the number of vanes contained in the impeller.
- Such a impeller may be movable and thus receive energy from the flow or impart energy to the flow flowing through the impeller; it can also be fixed; in this case, its role is to channel the flow.
- the term "vein" designates the surface of a platform of the blade directed towards the blade.
- a blade for a turbomachine impeller especially when it has a heel and has both a heel vein on the platform of his heel and a foot vein on the platform of his foot, is a piece of complex shape. Its manufacture is therefore relatively difficult, and most often requires the use of molds or tools with multiple parts, and / or possibly the use of five-axis machining centers.
- blades made essentially by casting (other methods being conceivable), and wherein the platform or platforms are formed integrally with the blade.
- the object of the invention is therefore to overcome these disadvantages and to propose blades whose manufacture is simplified or facilitated compared to traditional blades.
- a section in a plane perpendicular to the axis of the vein wheel of the first platform consists essentially of a first line segment on a first side of the blade and a second line segment on the second side of the blade; and the first segment as the second segment each form on each side of the blade an angle of 90 ° - 180 ° / N with respect to the radial direction.
- the first part of the axial extent of the blade may in particular extend upstream of the blade, or downstream of the blade (while possibly possibly extending also axially to the right of the blade).
- the first part of the axial extent of the blade can in particular extend upstream beyond the connection fillet of the leading edge of the blade, and / or downstream beyond the connection fillet downstream edge dawn flight.
- the section of the first blade consists essentially of a segment (can be assume that it is the first segment), which is aligned with the segment constituting essentially the section of the second blade.
- a section along a plane perpendicular to the axis of the wheel of the first platform veins of the two blades has two line segments aligned, namely the first segment for the first blade and the second segment for the second blade.
- the first segment and the second segment have adjacent ends.
- the first and second segments define two vectors, whose projections on a plane perpendicular to the axis of the impeller are symmetrical with respect to a meridian plane of the paddle wheel passing through the blade.
- the first platform of the veins have a perfect continuity at the interface between adjacent blades.
- the blade geometry indicated above also implies that the first and the second segment form an acute angle with respect to the outgoing radial direction for the blade.
- a section along a plane perpendicular to the axis of the wheel of the vein of the first platform consists essentially of a first line segment on a first side of the blade and a second line segment on the second side of the blade; and the first segment as the second segment each form on each side of the blade an angle of 90 ° - 180 ° / N.
- the second end of the blade comprises a second platform; on a second part of the axial extent of the blade, a section in a plane perpendicular to the axis of the wheel of a vein of the second platform is constituted essentially by a third segment of line on a first side of the blade and a fourth line segment on the second side of the blade; and the third segment as the fourth segment each form on each side of the blade an angle of 90 ° - 180 ° / N with respect to the radial direction.
- the first part and the second part of the axial extent of the blade are identical.
- the manufacture of the blade is then particularly simplified.
- the heel and foot veins are parallel to each other: that is to say that the section of the heel and foot veins in a plane perpendicular to the axis of the wheel, both on the intrados and on the extrados side of the blade, consists essentially of a segment for the heel vein and another segment for the vein of foot, and these two segments are parallel to each other.
- the first platform has an edge that extends substantially in the extension of a leading edge of the blade, and / or an edge that extends substantially in the extension of an edge of the blade. dawn leaking.
- the invention also relates to a paddle wheel, comprising N blades as defined above, and a turbomachine, in in particular a double-body turbomachine comprising a low-pressure turbine, comprising such a impeller.
- a second objective of the invention is to propose a method for modeling a platform vein for a blade, making it possible to define a blade that is particularly easy to manufacture, especially in comparison with the previous blades.
- a numerical model of the vein is created so that: on a first part of the axial extent of the blade, and possibly over the entire axial extent of the blade, a section of the vein along a plane perpendicular to the axis of the wheel forms essentially a first line segment on a first side of the blade and a second line segment on the second side of the blade, and the first segment as the second segment form on each side of the blade an angle of 90 ° - 180 ° / N with respect to the radial direction; and that the platform of the dawn appears as integrally formed with the blade.
- the 'radial direction' here designates the radial direction at the level of the blade of the blade.
- This method makes it possible to obtain the numerical model of a blade as defined above.
- the method can comprise the following steps:
- the first construction curve then makes it possible to construct the vein support surface or the vein.
- the first construction curve may for example be constructed in the following manner: the method may comprise a step during which a theoretical vein surface is determined; then, the first construction curve is determined so that it extends from upstream to downstream of the theoretical blade surface, passing through it from one side to the other, and radially substantially at the same distance of the axis that an intersection between the theoretical blade surface and the theoretical vein surface. Furthermore, preferably, the first construction curve can be determined such that, outside the theoretical blade area, the first construction curve is contained in the theoretical vein surface.
- the first construction curve such that its intersection with the theoretical surface for the blade is formed exactly by two points.
- the first construction curve such that for at least one direction, which will be the manufacturing direction mentioned above, in the vicinity of the theoretical surface of the vein, an angle between the normal to the surface theoretical of the blade and said direction is acute or right, as much on the intrados side as extrados.
- the first construction curve can in particular cross the theoretical surface of the blade at points whose normal is perpendicular to the intended manufacturing direction.
- the methods of calculation of the first construction curve indicated above make it possible to obtain a first construction curve which constitutes a good support for calculating the vein of the first platform.
- the first construction curve is then used to calculate the vein.
- the vein support surface is a surface used to construct the actual vein: on each side of the blade, the vein is created from the vein support surface in particular by limiting operations, in particular by limiting the support surface of the vein.
- vein at a limiting curve which is the curve defining substantially (to the inter-blade clearance close) the boundary between two adjacent blades.
- the first construction curve presented above can thus be used to create the vein support surface in different ways.
- the vein support surface is created by performing the following operations:
- defining a vein support surface (first vein support surface) by scanning a line segment moving on the basis of the first and second construction curves.
- the segment on the right moves while remaining at all times in a plane perpendicular to the axis of the wheel.
- the vein is then created to include a portion of this vein support surface.
- the vein is obtained from the vein support surface, in particular by limiting it at the level of the limiting curve defining the boundary between adjacent blades.
- the vein support surface as defined above extends only on one side of the theoretical blade surface, that is to say towards the lower surface or the upper surface.
- To create a vein support surface on the second side of the theoretical blade surface one can for example perform the following operation:
- creating a second vein support surface by applying to the first vein support surface a second rotation relative to the axis at an angle of -360 ° / N (the first rotation which was used to construct the second curve construction, and the second rotation, are performed in opposite directions).
- the vein is then defined so that the latter comprises, axially at the level of at least a portion of the first construction curve, two portions respectively of the first and second vein support surfaces located on both sides. other of the theoretical blade surface.
- the creation of the vein requires in particular to eliminate from the first and second vein support surface portions of surfaces that should not be part of the vein. These include the or portions of the vein support surfaces that are:
- the vein is finalized by limiting its area by means of limiting curves, on each side of the blade.
- the invention also relates to a method for manufacturing a blade for a turbomachine blade wheel, a first end of the blade comprising a first platform having a surface, called a vein, on the side of a blade of the blade; in which a vein modeling method as defined above is used to define the vein, and wherein the first platform is integrally formed with the blade.
- the blade is preferably formed mainly by casting.
- the invention also relates to the implementation, using the CATIA (registered trademark) CAD tool, of the vein modeling method as defined above.
- CATIA registered trademark
- FIG. 1 is a schematic perspective view of a blade according to the invention.
- FIG. 2 is a partial schematic perspective view of a turbomachine, showing a paddle wheel comprising blades identical to those illustrated in FIG. - Figure 3 is a schematic perspective view of the numerical model of the blade of Figure 1 being created by the modeling method according to the invention.
- FIG. 4 is a schematic radial view with respect to the axis of the impeller, numerical model of the blade of Figure 1 being created by the modeling method according to the invention.
- FIG. 5 is a diagrammatic view along the axis of the impeller of the numerical model of the blade of FIG. 1 being created by the modeling method according to the invention.
- FIG 1 shows three identical blades 10 which represent an embodiment of the invention. Each of these blades 10 is designed to be assembled with N-1 identical blades 10 to form a blade wheel 100 comprising N blades 10 ( Figure 2).
- the impeller 100 is itself part of a turbomachine 110.
- the vanes 10 are mounted on a rotor disk 12 axisymmetrically about the X axis of the wheel.
- a flow of fluid flows along the X axis from an upstream side to a downstream side of the wheel.
- the elements connected to the upstream side are denoted by V, and the elements connected to the downstream side are denoted by ⁇ '.
- Each blade 10 comprises successively, in a radial direction out of the wheel, a foot 14, a blade 16, and a heel 18.
- the foot 14 and the heel 18 therefore constitute the two ends of the dawn. They comprise respectively a platform 13 and a platform 22. These platforms 13,22 extend in a direction generally perpendicular to the longitudinal direction of the blade 16 (which is the radial direction R for the blade 10).
- the foot platform 13 has a vein 15, and the heel platform 22 a vein 24.
- the vein 15 has an approximately rectangular outer contour, delimited by an upstream edge 17u, a downstream edge 17d, a lower surface edge 17ps, an extrados edge 17ss.
- the vein 15 is composed of two complementary parts: a part 15ps located on the side of the intrados, and a part 15ss located on the extrados side of the blade.
- the vein 15 is connected to the surface of the blade 16 by connecting surfaces 20 (which are essentially connecting fillet radius evolution).
- the modeling method used to define the shape of the blade according to the invention will now be presented.
- This process comprises the following operations:
- This surface represents the desired outer surface for the blade 16.
- This surface is a function in particular of the aerodynamic stresses applicable to the blade; it consists of an extrados 30ss and a 30ps intrados, and has a leading edge 36 and a trailing edge 38 (Fig.3).
- a theoretical foot vein surface 40 and a theoretical heel vein surface 60 are then created or determined. Each of these surfaces has substantially the desired shape for the housing, respectively inner or outer, defining the passage of gas flow through the impeller.
- the surfaces 40, 60 extend axially upstream and downstream to boundary curves (40U, 40D, 60U, 60D) which axially delimit the extent or the grip of the dawn that is wants to define.
- the surfaces 40 and 60 are surfaces of revolution defined around the axis A. That being so, theoretical surfaces for the vein that are not surfaces of revolution can also be used within the scope of the invention. invention, for example surfaces leading to the definition of platforms called '3D platforms' and locally involving bumps and / or depressions.
- a surface of revolution about an axis here designates a surface generated by the rotation of a curve around this axis.
- the first construction curves 45,65 are created respectively for the platform 13 of the foot 14 and for the platform 22 of the heel 18 of dawn 10.
- intersection curve 44 is determined between the theoretical blade surface 30 and the theoretical foot vein surface 40.
- intersection curve 64 between the theoretical blade surface 30 and the theoretical heel vein surface 60 is also determined.
- Manufacturing directions are then defined. These are defined by a pair of (normalized) vectors Dps, Dss. These vectors define respectively for both sides of the blade directions that allow to define the manufacturing process used for the blade. They define, for example, demolding directions, etc.
- each of the vectors Dps and Dss makes an angle equal to 90 ° -180 ° / N relative to the radial direction R, where N is the number of vanes in the wheel vane (Fig.5), and the vertex angle (on the X axis) between two adjacent vanes is therefore equal to 360 ° / N.
- the vectors Dps and Dss are therefore symmetrical to one another with respect to a plane extending in a radial direction (R) traversing the theoretical blade surface 30 and containing the axis X of the impeller.
- a pair of limit points (U, D) is the pair of points, generally located respectively at the neighborhoods of the leading edge 36 and the trailing edge 38 of the blade, which form part of the intersection curve considered (curve 44), and which divide it into two complementary portions (44ps and 44ss) respectively associated with the vectors Dps and Dss, and such that at any point of each of these portions (44ps and 44ss), the angle between the normal at the theoretical blade surface at the point considered forms an acute or right angle with the associated vector Dps or Dss.
- the theoretical blade surface has a non-negative clearance relative to the vector Dps, Dss associated with the curve portion.
- a manufacturing direction is chosen (vector pair D PS and D S s) which thus defines a pair of limit points U, D.
- the first construction curve 45 for the foot platform is then defined so as to respect the following constraints:
- the first construction curve 45 therefore comprises:
- a second construction curve 45ps is created, applying to the first construction curve 45 a rotation of an angle of 360 ° / N with respect to the axis X.
- the first and second 65.65ps construction curves for the heel platform 22 are then similarly created. d Creation of foot and heel veins
- the foot vein 15 is first constructed by performing the following operations:
- a vein support surface 46 is created by scanning a moving line segment while remaining in contact with or in contact with the first construction curve 45 and the second construction curve 45ps.
- the section of the vein support surface 46 in a plane perpendicular to the X axis is shown in FIG.
- the section of the vein support surface 46 in a plane perpendicular to the axis is a line segment 48.
- the surfaces 20 of the connection fillet are first calculated between the theoretical blade surface 30 and the vein support surface 46, on the underside side.
- the vein support surface 46 is then limited at the end of the connection fillet surfaces.
- vein support surface extends to the first construction curve 45.
- the desired limiting curve 52 delimiting the adjacent blade platforms is created or first created.
- the vein support surface 46 is then divided into two portions 46ps and 46ss separated by the limitation curve 52.
- the portion 46ss of the vein support surface 46 is then rotated by an angle of -360 ° / N with respect to the X axis; the portion 46ss to which this rotation has been applied is therefore relative to the theoretical blade surface on the extrados side.
- the vein support surface 46ss is then limited at the end of the connection fillet surfaces. This portion 46ss (located on the extrados side of the theoretical blade surface 30) and the portion 46ps constitute the vein 15 of the platform 13 of the foot 14 of the blade 10.
- vein 15 In another embodiment, only a portion of the 46ss and 46ps surfaces mentioned above is used to create the vein 15. In addition to this portion of the 46ss and 46ps surfaces, the vein 15 then comprises surfaces other than the surfaces 46ss, 46ps, for example surface portions that are not surfaces of revolution.)
- the portions 46ss and 46ps of the vein support surface are adjacent and form a projecting edge at the first construction curve 45, that is to say at the level of the curves 45a. and 45d.
- the sections 48ss and 48ps of the portion support surface portion portions 46ss and 46ps form with respect to the radial direction R an angle equal to 90-180 N (Fig.5).
- a section along a plane perpendicular to the axis of the wheel of the vein 15 has a first line segment 48PS on a first side of the blade.
- the heel vein 24 is created in the same way as the foot vein 15.
- the sections of the vein support surfaces of the heel and foot platforms present, in a plane perpendicular to the X axis, parallel straight segments 48, 68.
- the theoretical blade surface 30 is limited at the level of the connection fillet 20, the side of the foot. It is similarly limited to the level of fillet 72 created on the side of the heel.
- the blade 10 can then be manufactured with the geometry defined by the numerical model thus defined.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (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 |
|---|---|---|---|
| FR1362910A FR3014942B1 (fr) | 2013-12-18 | 2013-12-18 | Aube, roue a aubes et turbomachine ; procede de fabrication de l'aube |
| PCT/FR2014/053317 WO2015092234A1 (fr) | 2013-12-18 | 2014-12-12 | Aube, roue a aubes et turbomachine; procédé de fabrication de l'aube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3084131A1 true EP3084131A1 (fr) | 2016-10-26 |
| EP3084131B1 EP3084131B1 (fr) | 2019-10-02 |
Family
ID=50179805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14827829.4A Active EP3084131B1 (fr) | 2013-12-18 | 2014-12-12 | Aube, roue à aubes et turbomachine; procédé de fabrication de l'aube |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US10669863B2 (fr) |
| EP (1) | EP3084131B1 (fr) |
| JP (1) | JP6809904B2 (fr) |
| CN (1) | CN105829651B (fr) |
| BR (1) | BR112016014252B1 (fr) |
| CA (1) | CA2933628C (fr) |
| FR (1) | FR3014942B1 (fr) |
| RU (1) | RU2696845C1 (fr) |
| WO (1) | WO2015092234A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015224151B4 (de) * | 2015-12-03 | 2025-12-11 | MTU Aero Engines AG | Laufschaufel für eine Gasturbine und Gasturbine |
| FR3074217B1 (fr) * | 2017-11-24 | 2020-09-25 | Safran Aircraft Engines | Aube pour une turbomachine d'aeronef |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE791162A (fr) * | 1971-11-10 | 1973-03-01 | Penny Robert N | Rotor de turbine |
| US4602412A (en) * | 1982-12-02 | 1986-07-29 | Westinghouse Electric Corp. | Method for assembling in a circular array turbine blades each with an integral shroud |
| GB2251897B (en) * | 1991-01-15 | 1994-11-30 | Rolls Royce Plc | A rotor |
| FR2715968B1 (fr) * | 1994-02-10 | 1996-03-29 | Snecma | Rotor à plates-formes rapportées entre les aubes. |
| DE4432999C2 (de) | 1994-09-16 | 1998-07-30 | Mtu Muenchen Gmbh | Laufrad einer Turbomaschine, insbesondere einer axial durchströmten Turbine eines Gasturbinentriebwerks |
| JPH10184311A (ja) * | 1996-12-27 | 1998-07-14 | Ishikawajima Harima Heavy Ind Co Ltd | タービンの静翼列構造 |
| JP2001055902A (ja) | 1999-08-18 | 2001-02-27 | Toshiba Corp | タービン動翼 |
| ES2243358T3 (es) | 2001-04-04 | 2005-12-01 | Siemens Aktiengesellschaft | Turbina y alabe de turbina. |
| US7784183B2 (en) | 2005-06-09 | 2010-08-31 | General Electric Company | System and method for adjusting performance of manufacturing operations or steps |
| US20060280610A1 (en) | 2005-06-13 | 2006-12-14 | Heyward John P | Turbine blade and method of fabricating same |
| US7300253B2 (en) * | 2005-07-25 | 2007-11-27 | Siemens Aktiengesellschaft | Gas turbine blade or vane and platform element for a gas turbine blade or vane ring of a gas turbine, supporting structure for securing gas turbine blades or vanes arranged in a ring, gas turbine blade or vane ring and the use of a gas turbine blade or vane ring |
| JP4991663B2 (ja) | 2007-09-11 | 2012-08-01 | 株式会社日立製作所 | 蒸気タービン動翼組立体 |
| US8998583B2 (en) | 2008-05-27 | 2015-04-07 | GKNAerospace Sweden AB | Gas turbine engine and a gas turbine engine component |
| CH704825A1 (de) * | 2011-03-31 | 2012-10-15 | Alstom Technology Ltd | Turbomaschinenrotor. |
| US8951013B2 (en) * | 2011-10-24 | 2015-02-10 | United Technologies Corporation | Turbine blade rail damper |
-
2013
- 2013-12-18 FR FR1362910A patent/FR3014942B1/fr active Active
-
2014
- 2014-12-12 JP JP2016541097A patent/JP6809904B2/ja active Active
- 2014-12-12 EP EP14827829.4A patent/EP3084131B1/fr active Active
- 2014-12-12 RU RU2016128801A patent/RU2696845C1/ru active
- 2014-12-12 CA CA2933628A patent/CA2933628C/fr active Active
- 2014-12-12 WO PCT/FR2014/053317 patent/WO2015092234A1/fr not_active Ceased
- 2014-12-12 US US15/105,406 patent/US10669863B2/en active Active
- 2014-12-12 CN CN201480069046.7A patent/CN105829651B/zh active Active
- 2014-12-12 BR BR112016014252-7A patent/BR112016014252B1/pt active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| CA2933628C (fr) | 2022-10-25 |
| WO2015092234A1 (fr) | 2015-06-25 |
| EP3084131B1 (fr) | 2019-10-02 |
| FR3014942B1 (fr) | 2016-01-08 |
| US20160319676A1 (en) | 2016-11-03 |
| CN105829651B (zh) | 2019-05-07 |
| FR3014942A1 (fr) | 2015-06-19 |
| RU2696845C1 (ru) | 2019-08-06 |
| CN105829651A (zh) | 2016-08-03 |
| JP2017500488A (ja) | 2017-01-05 |
| BR112016014252A2 (fr) | 2017-08-08 |
| US10669863B2 (en) | 2020-06-02 |
| CA2933628A1 (fr) | 2015-06-25 |
| BR112016014252B1 (pt) | 2022-04-19 |
| JP6809904B2 (ja) | 2021-01-06 |
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