EP2683939A2 - Dispositif rotor pour une turbine axiale et procédé pour son montage - Google Patents

Dispositif rotor pour une turbine axiale et procédé pour son montage

Info

Publication number
EP2683939A2
EP2683939A2 EP12710136.8A EP12710136A EP2683939A2 EP 2683939 A2 EP2683939 A2 EP 2683939A2 EP 12710136 A EP12710136 A EP 12710136A EP 2683939 A2 EP2683939 A2 EP 2683939A2
Authority
EP
European Patent Office
Prior art keywords
rotor
blade
drive shaft
profiled
section
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.)
Withdrawn
Application number
EP12710136.8A
Other languages
German (de)
English (en)
Inventor
Patrick Hennes
Alexander Sauer
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP2683939A2 publication Critical patent/EP2683939A2/fr
Withdrawn legal-status Critical Current

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
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/26—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy
    • F03B13/264—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy using the horizontal flow of water resulting from tide movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/061—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially in flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0691—Rotors characterised by their construction elements of the hub
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the invention relates to a rotor assembly for an axial turbine, in particular with a propeller-shaped rotor for a tidal power station or a
  • Wind turbine with horizontal axis of rotation as well as a method for their assembly.
  • Tidal power plants with a horizontally oriented drive shaft revolving on a nacelle, driven by a propeller-shaped turbine, are known and correspond to the design of wind turbines in
  • Generic axial turbines either designed as free-flow units or of a jacket with a Venturi geometry for
  • Rotor arrangement can be further transferred to other axial flow machines, such as fans.
  • Rotor blades are mounted separately on a hub.
  • the hub For this purpose, the hub
  • Blade attachment portions are typically cylindrically applied, with a transition region to the flow field interacting profiled rotor blade portions being provided with high structural stability.
  • WO 2010/125478 AI The cylindrical
  • Blade attachment portions typically have a diameter that is less than the chord length of the immediately adjacent profiled one
  • the known blade attachment portions at the hub end typically have a mounting flange which serves to form a threaded connection between the blade attachment portion of the rotor blade and the adjoining hub portion of the rotating unit.
  • Wind turbines such a rotor blade attachment, for example, by US 6,305,905 Bl discloses.
  • Rotor blades on a hub of a tidal power station result from the
  • Hub part is covered by a mounting ring.
  • Rotor blade connections are referred to US 5173023 and GB 502409.
  • the invention has for its object to provide a rotor assembly for a
  • axial turbine with a variety of individually mountable rotor blades, which is characterized by a high structural stability of the rotor blade mounts and by an efficient force and torque transmission to a subsequent drive shaft.
  • a rotor blade design is desired that allows easy replacement of individual rotor blades.
  • Rotor arrangement serve in particular for the operation of a tidal power plant and are preferably suitable for the formation of a bidirectionally flowable axial turbine.
  • the rotor assembly in particular must be able to intercept asymmetric load peaks acting only on individual rotor blades and to simplify the design and manufacturing technology. Furthermore, an assembly method for such a rotor blade assembly is sought.
  • Hub segments associated with the interchangeable rotor blades form mutually at least in the circumferential direction and at least indirectly supporting sheet attachment sections.
  • a releasable connection are preferably a screw and / or a positive connection in question, so at a
  • Blade attachment portions form a segmented hub portion for an advantageous design after the assembly on the drive shaft has been performed by the interaction with the respective adjacent blade attachment portions.
  • Each rotor blade of the rotor blade assembly according to the invention comprises a profiled sheet section and one hereby preferably cohesively
  • each rotor blade has a one-part design of the associated profiled rotor blade section and the associated
  • the rotor blade can be made of a GRP or CFK material or steel, with investment areas on the
  • Blade mounting portions serve an adjacent rotor blade, preferably by the embedding of abrasion resistant materials, such as a coupling element made of metal, reinforced.
  • abrasion resistant materials such as a coupling element made of metal, reinforced.
  • the sheet fastening sections are produced as castings. These are made of steel, CFRP or GRP made profiled rotor blade sections cohesively.
  • stub wings are integrally attached to the blade attachment portion, which form a first part of the profiled rotor blade portion, wherein a second part of the profiled rotor blade portion with the
  • Stub wing is releasably connected.
  • the transition from the first part to the second part of the profiled rotor blade section can be designed as a predetermined breaking point to secure the entire system from serious destruction in case of overload. Furthermore, it is possible to provide this transition region with an elasticity for realizing a bending rotational coupling of the rotor blade.
  • the blade attachment portions are positively secured and / or by means of a screw to a drive shaft of the rotor assembly, so that each individual rotor blade is rotationally rigidly connected to the drive shaft.
  • connection can be transmitted by one or more of the intermediate elements, so that the torsionally rigid articulation of the rotor blades is present at least indirectly.
  • inventively designed rotor blade assembly is only a part of the introduced from the profiled rotor blade sections forces and
  • connection between the rotor blade and the drive shaft is carried out on an axial end face of the blade mounting portion, which in the assembled position of an axial end face on the
  • Rotor blade in particular thrust loads in the axial direction, the force components in the circumferential direction of the contact areas adjacent
  • each blade mounting portion has a first contact area and a second contact area and the above-described third contact area to the drive shaft.
  • the first contact region " and the second contact region are spatially separated.”
  • the first contact region and the second contact region adjoin one another and merge into one another.
  • the first and the second investment area are defined by respective ones
  • the first investment area is based on
  • Blade mounting portion of a first, directly adjacent rotor blade at least indirectly from and the second abutment region is based at least indirectly from the blade mounting portion of a second, directly adjacent rotor blade.
  • the first contact area and the second contact area preferably have means for detachable connection to the respectively adjacent one
  • Blade mounting portion of the adjacent rotor blade on can be in the form of a screw connection and / or as a positive connection
  • the contact areas are displaced into the mechanically less loaded intermediate blade areas.
  • These intermediate sheet areas are defined by the fact that their angular offset in the circumferential direction to a
  • Parting plane between adjacent rotor blades is a maximum of ⁇ 30 ° and preferably a maximum of ⁇ 15 °.
  • the dividing plane runs in the middle between
  • a rotor blade with a radial jet geometry is present, that is to say the threading lines of the profiled rotor blade sections follow a straight line in the radial direction.
  • a rotor plane is defined by the threading line and the axis of rotation.
  • the profiled rotor blade sections go sickled. So a design is conceivable for the profiled
  • Rotor blade sections although in the rotor plane, as the axisymmetric to
  • Rotary axis is defined, run, but the Auffädellinien no straight line follow. Furthermore, it is conceivable that the profiled rotor blade sections are curved so that they leave the rotor plane. For such a way
  • spatially applied profiled rotor blade sections is used to define the rotor plane on a predetermined profile section in the transition from
  • Blade attachment portion to the profiled rotor blade section
  • characteristic point for example, the point on the chord line at half tread depth selected. A straight line passing through this point in
  • Radial direction and the axis of rotation then define the rotor plane.
  • Interleaf areas preferably in an angular interval of 40 - 60% of the angle, by a section of the rotor plane adjacent to each other lying rotor levels is formed.
  • the intermediate blade areas are in
  • the connecting elements for the blade mounting portions of adjacent rotor blades can, for example, represent form-fitting interlocking components, which can be fastened to one another by a relative movement in the axial direction of the rotor.
  • the connecting elements for the blade mounting portions of adjacent rotor blades can, for example, represent form-fitting interlocking components, which can be fastened to one another by a relative movement in the axial direction of the rotor.
  • the connecting elements for the blade mounting portions of adjacent rotor blades can, for example, represent form-fitting interlocking components, which can be fastened to one another by a relative movement in the axial direction of the rotor.
  • the connecting elements for the blade mounting portions of adjacent rotor blades can, for example, represent form-fitting interlocking components, which can be fastened to one another by a relative movement in the axial direction of the rotor.
  • seawater resistant plain bearings are used, in question. These materials are typically resilient to pressure and have high abrasion resistance for hard / soft pairing. Due to the elastic intermediate layer, a certain relative movement of adjacent rotor blades, which arises due to impact loads, can be compensated. For a further design, it is conceivable, the detachable connection between the blade mounting sections of adjacent rotor blades by additional
  • these intermediate elements are adapted to adapt the mounting position of the rotor blades to the respective location. This allows the use of standardized rotor blades and a change in the
  • Rotor blade sections by an appropriate choice of the intermediate elements. Particularly preferred is an embodiment for which the totality of
  • Blade mounting portions of the rotor in the fastened state surrounds a central open area, which serves to receive a shaft portion of a subsequent to the rotor drive shaft.
  • the contour of the central free area is designed so that it deviates from the circular contour and transmits the drive torque generated by the rotor by a positive connection with a correspondingly complementary formed shaft stub.
  • the design of the invention allows the reduction of the notch effect in the transition from the profiled rotor blade sections to the blade mounting sections. This is achieved by replacing the hitherto customary cylindrical configuration of the blade attachment section for accommodation in a recess on a hub part by assigning a hub segment to a single rotor blade. This results in large-scale construction
  • Blade mounting sections without the segmented hub part resulting from the merging of the rotor blades experiencing an increase in size.
  • Radial section of the rotor blade which defines a transition region between the profiled rotor blade sections and the blade attachment section, no constrictions. Particularly preferred is a transition region which leads above a limiting radius in the direction radially outward to a continuous taper of the rotor blade. Also conceivable is an alternative embodiment for which the profile areas which are essential for structural stability, i. the
  • Figure 1 shows a perspective view of a first embodiment of a rotor assembly according to the invention in the partially assembled state.
  • Figure 2 shows a second embodiment of an inventive
  • Rotor assembly partially assembled in perspective view.
  • FIG. 3 shows an alternative rotor design in axial plan view.
  • FIG. 4 shows a detail of FIG. 3 in an enlarged view.
  • FIG. 5 shows a rotor arrangement according to the invention with a rotor according to FIG.
  • FIG. 6 shows a further, alternative rotor design in an axial plan view.
  • FIG. 1 shows in a schematically simplified representation a rotor arrangement according to the invention with a drive shaft 1 and a rotor 20 with three
  • the drive shaft 1 includes a rotation axis 21 that defines an axial direction 22 and a circumferential direction 23. Every rotor blade
  • 2.1, 2.2, 2.3 comprises a profiled rotor blade section 3.1, 3.2, 3.3 for interaction with the flow field and a blade attachment section 4.1,
  • the blade mounting sections 4.1, 4.2, 4.3 are torsionally rigidly connected to the drive shaft 1.
  • the rotor blade 2.1 of the profiled rotor blade section 3.1 for the illustrated, preferred design with the associated
  • Blade attachment portion 4.1 cohesively connected.
  • the other rotor blades 2.2, 2.3 designed so that a material connection between the respective profiled rotor blade section 3.2, 3.3 and the associated blade mounting section 4.2, 4.3 exists.
  • the rotor blades 2.1, 2.2, 2.3 can be made of different materials of construction. In addition to castings, steel and fiber composites based on GRP and CFRP, this is an option. The connection of different materials for the formation of the rotor blades 2.1, 2.2, 2.3 is conceivable.
  • Each blade mounting portion 4.1, 4.2, 4.3 includes a first axial end face 24 and a second axial end face 25 formed by spaced-apart plate-shaped members.
  • a first investment area 7.1, 7.2, 7.3 and at a second plant area 8.1, 8.2, 8.3 are the first investment area 7.1, 7.2, 7.3 and at a second plant area 8.1, 8.2, 8.3 are the first investment area 7.1, 7.2, 7.3 and at a second plant area 8.1, 8.2, 8.3 are the
  • the first contact area 7.1, 7.2, 7.3 for a first rotor blade 2.1, 2.2, 2.3 is the second contact area 8.1, 8.2, 8.3 am
  • Rotor blades 2.1, 2.2, 2.3 opposite.
  • the first bearing areas 7.1, 7.2, 7.3 and the second bearing areas 8.1, 8.2, 8.3, which assign each other in the assembled state, serve for the mutual support of the sheet fastening sections 4.1, 4.2, 4.3 in the circumferential direction 23.
  • the rotor 20 is located on the leeward side.
  • Figure 2 shows a further embodiment of the invention for a bidirectional
  • Anströmbare rotor assembly wherein at the first bearing portions 7.1, 7.2, 7.3 and the second bearing areas 8.1, 8.2, 8.3 fastening means are present to intercept the outlined by the force components 29.3, 29.4 alternating compressive and tensile forces.
  • Exemplary are this dovetail-shaped
  • FIG. 4 shows, as a section in the plane defined by the longitudinal axes 9.1, 9.2, 9.3 of the profiled rotor blade sections 3.1, 3.2, 3.3, the second contact area 8.2 on the blade fastening section 4.2 and the first one
  • the contact areas 8.2, 7.3 can be released by bolts 11.1, 11.2
  • an elastic intermediate element 13 for example, an elastic sliding bearing material, for example, the elastomer is suitable Orkot®.
  • the elastic intermediate element 13 allows a certain mobility of the rotor blades 2.1, 2.2, 2.3 in the case of an asymmetric load.
  • a side opening 31 is made in the box-shaped manner
  • profiled rotor blade sections 3.1, 3.2, 3.3 are applied.
  • a separation plane 32 is sketched which lies at half the angle between the longitudinal axes 9.1 and 9.2 of the profiled rotor blade sections 3.1, 3.2, which in conjunction with the surface normal to the paper plane (Axial direction) define the rotor planes for the rotor blades 2.1, 2.2.
  • Angular offset of +/- 15 ° specified intermediate sheet area 18.1, 18.2, 18.3 are those areas that in relation to the other parts of
  • Blade mounting sections 4.1, 4.2, 4.3 are subjected to less load during operation of the rotor 20.
  • the advantageous embodiment according to Figure 3 shows an outer contour which is free of constrictions, so that the notch effect on the Rotor blade connections is reduced. Furthermore, from a certain radius, it is particularly preferable for a continuous taper to be present
  • Blade mounting portion for profiled rotor blade section 3.1, 3.2, 3.3 radially outward before.
  • Blade mounting sections 4.1, 4.2, 4.3 of the rotor blades 2.1, 2.2, 2.3 a segmented hub part 5, which has a central open area 14 for an advantageous embodiment.
  • the central open area 14 is triangular with respect to a section in the rotor plane.
  • This is shown in Figure 5 as a plan view of the second axial end face 25 of the rotor 20.
  • the concealed, first axial end face 24 with the not visible in Figure 5 holes 17.1, 17.n for attachment to the axial end surface 26 of the drive shaft 1 is located.
  • a rotor 20 mounted in this way can be partially assembled for maintenance purposes by exchanging individual rotor blades 2.1, 2.2, 2.3 separately or readjusting them with respect to the relative position to the other rotor components or to the drive shaft 1.
  • the holes 17.1, 17.n through the use of
  • the second axial end face 25 of the blade mounting sections 4.1, 4.2, 4.3 overlaps and axially secures.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Oceanography (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Wind Motors (AREA)
  • Hydraulic Turbines (AREA)

Abstract

L'invention concerne un dispositif rotor comportant un arbre d'entraînement ayant un axe de rotation affecté définissant une direction axiale et une direction périphérique; un rotor comportant une pluralité d'aubes de rotor comprenant respectivement un segment d'aube de rotor profilé pouvant être attaqué dans la direction axiale, et un segment de fixation d'aube, chaque segment de fixation d'aube comprenant une première zone d'appui et une deuxième zone d'appui, la première zone d'appui s'appuyant au moins indirectement sur le segment de fixation d'aube d'une première aube adjacente et la deuxième zone d'appui s'appuyant au moins indirectement sur le segment de fixation d'aube d'une deuxième aube adjacente. L'invention est caractérisée en ce que les segments de fixation d'aube sont fixés par complémentarité de forme et/ou par vissage à l'arbre d'entraînement de telle manière qu'une liaison est créée entre l'aube et l'arbre d'entraînement sur un côté frontal axial du segment de fixation d'aube, faisant face en position montée à une surface terminale axiale de l'arbre d'entraînement. Pour chaque aube, la transition du segment d'aube profilé vers le segment de fixation d'aube présente un contour extérieur exempt de rétrécissements.
EP12710136.8A 2011-03-10 2012-03-08 Dispositif rotor pour une turbine axiale et procédé pour son montage Withdrawn EP2683939A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011013547A DE102011013547A1 (de) 2011-03-10 2011-03-10 Rotoranordnung für eine Axialturbine und Verfahren für deren Montage
PCT/EP2012/001019 WO2012119771A2 (fr) 2011-03-10 2012-03-08 Dispositif rotor pour une turbine axiale et procédé pour son montage

Publications (1)

Publication Number Publication Date
EP2683939A2 true EP2683939A2 (fr) 2014-01-15

Family

ID=45876665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12710136.8A Withdrawn EP2683939A2 (fr) 2011-03-10 2012-03-08 Dispositif rotor pour une turbine axiale et procédé pour son montage

Country Status (7)

Country Link
US (1) US20130302169A1 (fr)
EP (1) EP2683939A2 (fr)
JP (1) JP2014507599A (fr)
KR (1) KR20140061302A (fr)
CA (1) CA2825235A1 (fr)
DE (1) DE102011013547A1 (fr)
WO (1) WO2012119771A2 (fr)

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US9932961B1 (en) * 2016-09-16 2018-04-03 Jeremy W. Gorman Replacement airfoil blades for a wind power generator
EP3299616B1 (fr) * 2016-09-23 2019-07-10 Siemens Gamesa Renewable Energy A/S Segments de montage et eolienne dotee de segments de montage
EP3327283A1 (fr) * 2016-11-29 2018-05-30 Siemens Aktiengesellschaft Éolienne
CN109185043A (zh) * 2018-08-06 2019-01-11 中材科技（邯郸）风电叶片有限公司 风电叶片及生产工艺
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JP2014507599A (ja) 2014-03-27
WO2012119771A3 (fr) 2012-11-15
KR20140061302A (ko) 2014-05-21
US20130302169A1 (en) 2013-11-14
WO2012119771A8 (fr) 2013-10-10
WO2012119771A2 (fr) 2012-09-13
CA2825235A1 (fr) 2012-09-13

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