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1. (WO2018224582) PALE DE ROTOR D'ÉOLIENNE, SECTION DE CELLE-CI ET ÉLÉMENT D'INTERCONNEXION
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS

1 . A section of a wind turbine rotor blade, the section comprising three or more wing members extending along each other, at a distance from each other, and along a longitudinal direction of the wind turbine rotor blade,

wherein at least one, and preferably each, wing member has an airfoil shaped cross-section as seen in a plane transverse to the longitudinal extension of the wing member,

wherein each wing member extends from a respective inner end to a respective outer end,

wherein the section further comprises a first plurality of three or more struts and a second plurality of three or more struts and at least one diagonal frame member extending from an inner end of a first wing member to an outer end of another wing member, said diagonal frame member being pre-tensioned providing a pulling force between the inner end of the first wing member to the outer end of the other wing member,

wherein the struts in the first plurality of struts each extend from an inner end of one wing member to an inner end of another wing member, such that the struts in the first plurality of struts interconnect the wing members at their inner ends, and

wherein the struts in the second plurality of struts each extend from an outer end of one wing member to an outer end of another wing member, such that the struts in the second plurality of struts interconnect the wing members at their outer ends.

2. The section according to claim 1 , wherein the struts are configured to resist longitudinal compression along a longitudinal direction of respective strut.

3. The section according to any one of claims 1 or 2, wherein each strut of the struts in the first plurality of struts and/or each strut of the struts in the second plurality of struts are separate elongated members being mechanically connected at either end to the respective end of respective wing member.

4. The section according to any one of claims 1 -3, wherein the struts in the first plurality of struts and/or the second plurality of struts are integrally formed as a single polygonal member.

5. The section according to any one of claims 1 -4,

wherein the number of struts in the first plurality of struts is at least equal to, and preferably is equal to, the number of wing members, and/or wherein the number of struts in the second plurality of struts is at least equal to, and preferably is equal to, the number of wing members.

6. The section according to any one of claims 1 -5,

wherein the struts in the first plurality of struts form a closed polygon, preferably non-self-intersecting closed polygon, with the respective inner ends of the wing members positioned in the corners of the polygon, and/or

wherein the struts in the second plurality of struts form a closed polygon, preferably non-self-intersecting closed polygon, with the respective outer ends of the wing members positioned in the corners of the polygon.

7. The section according to any one of claims 1 -6, wherein the section further comprises at, at least one end of the respective wing member, an interconnecting member by which the respective wing member is configured to be interconnected with a corresponding wing member of a second section, wherein each interconnecting member preferably is provided with connectors for at least two, preferably for two, struts each extending from the respective wing member to two other wing members.

8. A wind turbine rotor blade comprising a plurality of sections according to any one of claims 1 -7,

wherein the sections are arranged with its respective wing members arranged one after another along the longitudinal direction of the wind turbine rotor blade, and

wherein the second plurality of struts of a first section also forms the first plurality of struts of a second section being immediately adjacent the first section as seen in the longitudinal direction of the wind turbine rotor blade.

9. The wind turbine rotor blade according to claim 8, wherein the wing members of the first section are separate from the wing members of the second section.

10. The wind turbine rotor blade according to claim 9, wherein the wing members of the first section have different airfoil properties than the wing members of the second section.

1 1 . The wind turbine rotor blade according to 9 or 10, wherein respective wing member of the first section is interconnected with a

corresponding wing member of the second section by an interconnecting member, wherein each interconnecting member is provided with connectors for at least two, preferably for two, struts each extending from the respective wing member to two other wing members.

12. The wind turbine rotor blade according to claim 1 1 , wherein at least one of the interconnecting members at the inner end of a first wing member of a first section further comprises at least one connector for a pre-tensioned diagonal frame member and/or wherein at least one of the interconnecting members at the outer end of another wing member of the section further comprises at least one connector for the pre-tensioned diagonal frame member.

13. The wind turbine rotor blade according to claim 1 1 or 12, wherein the struts in the first plurality of struts and/or the second plurality of struts are integrally formed as a single polygonal member, and wherein each

interconnecting member is provided with a connector for attachment to a respective corner of the integrally formed single polygonal member.

14. An interconnecting member configured to interconnect a wing member of a first section with a corresponding wing member of a second section in a wind turbine rotor blade comprising three or more wing members extending along each other, at a distance from each other, and along a longitudinal direction of the wind turbine rotor blade, wherein the

interconnecting member is provided with connectors for at least two, preferably for two, struts each configured to extend from the interconnecting member to another interconnecting member configured to interconnect

another wing member of the first section with another corresponding wing member of the second section.

15. The interconnecting member according to claim 14, further comprising:

at least one portion formed of metal provided with connectors, and a first and a second elongate portion each extending along the longitudinal direction,

wherein the first elongate portion being configured to interact with the wing member of the first section and the second elongate portion being configured to interact with the corresponding wing member of the second section.