WO2024213212 - WIND TURBINE BLADE ROOT EXTENDER
National phase entry is expected:
Publication Number
WO/2024/213212
Publication Date
17.10.2024
International Application No.
PCT/DK2024/050075
International Filing Date
27.03.2024
Title **
[English]
WIND TURBINE BLADE ROOT EXTENDER
[French]
PROLONGATEUR DE RACINE DE PALE D'ÉOLIENNE
Applicants **
VESTAS WIND SYSTEMS A/S
Inventors
NIELSEN, Jens Bredal
BECH, Anton
Priority Data
PA202370177
14.04.2023
DK
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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| Number of Office Actions | * |
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International Searching Authority |
EPO
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
| * | |
| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2243 | |
| EPO | Filing, Examination, Granting | 11811 | |
| Japan | Filing, Examination, Granting | 2394 | |
| South Korea | Filing, Examination, Granting | 2484 | |
| USA | Filing, Examination, Granting | 5740 |
Total:
24,672
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
Wind turbine blade root extender A tubular root extender (24) for extending the length of a wind turbine blade (16) has been described. The root extender (24) is positioned between the root end (20) of a blade (16) and a mounting structure (26) of a hub (18), such as a pitch bearing (26) or hub flange. The root extender (24) comprises a plurality of elongate members (38) extending in a longitudinal direction (L) and arranged circumferentially to form the tubular shape of the root extender (24). The elongate members (38) collectively form a segmented ring when the root extender (24) is viewed in transverse cross-section perpendicular to the longitudinal direction (L). The elongate members (38) are made of fibre-reinforced polymeric material, and each elongate member (38) defines a through bore (32) extending through an entire length of the elongate member (38). A plurality of elongate tension elements (36) connect the root end (20) of the blade (16) to the mounting structure (68). Each tension element (36) extends through a respective through bore (32) in an elongate member (38). A first end (78) of each tension element (36) is connected to the mounting structure (68) of the hub (18) and a second end (80) of each tension element (36) is connected to the root end (20) of the blade (16).[French]
L'invention concerne un prolongateur de racine de pale d'éolienne (24) s'étendant sur la longueur d'une pale d'éolienne (16). Le prolongateur de racine (24) est positionné entre une extrémité de racine (20) de la pale (16) et une structure de montage (26) d'un moyeu (18), tel qu'un palier de pas ou une bride de moyeu. Le prolongateur de racine (24) comprend une pluralité d'éléments allongés (38) s'étendant dans une direction longitudinale (L) et agencés de manière circonférentielle pour former la forme tubulaire du prolongateur de racine (24). Les éléments allongés (38) forment collectivement un anneau segmenté lorsque le prolongateur de racine (24) est vu en coupe transversale perpendiculaire à la direction longitudinale (L). Les éléments allongés (38) sont constitués d'un matériau polymère renforcé par des fibres, et chaque élément allongé (38) définit un alésage traversant (32) s'étendant sur toute la longueur de l'élément allongé (38). Une pluralité d'éléments de tension allongés (36) relient l'extrémité de racine (20) de la pale (16) à la structure de montage (68). Chaque élément de tension (36) s'étend à travers un alésage traversant respectif (32) dans un élément allongé (38). Une première extrémité (78) de chaque élément de tension (36) est reliée à la structure de montage (68) du moyeu (18) et une seconde extrémité (80) de chaque élément de tension (36) est reliée à l'extrémité de racine (20) de la pale (16).