WO2023117010 - BUSHING FOR CONNECTING A ROTOR BLADE TO A ROTOR HUB IN A WIND TURBINE
National phase entry:
Publication Number
WO/2023/117010
Publication Date
29.06.2023
International Application No.
PCT/DK2022/050290
International Filing Date
20.12.2022
Title **
[English]
BUSHING FOR CONNECTING A ROTOR BLADE TO A ROTOR HUB IN A WIND TURBINE
[French]
DOUILLE DE RACCORDEMENT D'UNE PALE DE ROTOR À UN MOYEU DE ROTOR D'UNE ÉOLIENNE
Applicants **
VESTAS WIND SYSTEMS A/S
Hedeager 42
8200 Aarhus N, DK
Inventors
RANDALL, Stephen
c/o Vestas Wind Systems A/S
Hedeager 42
8200 Aarhus N, DK
Priority Data
PA202170644
21.12.2021
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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| * | |
International Searching Authority |
EPO
* |
| Applicant's Legal Status |
Legal Entity
* |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Translation |
|
Recalculate
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1289 | |
| EPO | Filing, Examination | 6714 | |
| Japan | Filing | 591 | |
| South Korea | Filing | 575 | |
| USA | Filing, Examination | 4110 |
Total: 13279 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
A bushing (42, 92) for connecting a wind turbine blade (20) to a rotor hub (18) of a wind turbine (10) including a main body (44, 94) defining a connecting end of the bushing (42, 92) for receiving a fastener (130) for securing the blade (20) to the rotor hub (18), a tubular extension (46, 96) extending distally from the main body (44, 94) and defining a tip end of the bushing (42, 92) and a central bore (52, 102) extending from the connecting end to the tip end of the bushing (42, 92) and defining a central axis (94, 104) of the bushing (42, 92). The tubular extension (46, 96) includes one or more tapered or cylindrical sections (74, 124) and a tip section (76, 126) distal of the one or more tapered or cylindrical sections (74, 124) and adjacent the tip end. The tip section (76, 126) includes an outer surface and an inner surface that are substantially parallel to each other and substantially parallel to the central axis (94, 104) of the bushing (42, 92).[French]
L'invention concerne une douille (42, 92) de raccordement d'une pale d'éolienne (20) à un moyeu de rotor (18) d'une éolienne (10). Ladite douille comprend un corps principal (44, 94) définissant une extrémité de raccordement de la douille (42, 92) servant à recevoir un élément de fixation (130) permettant de fixer la pale (20) au moyeu de rotor (18), une extension tubulaire (46, 96) s'étendant de manière distale à partir du corps principal (44, 94) et définissant une extrémité de pointe de la douille (42, 92) et un alésage central (52, 102) s'étendant de l'extrémité de raccordement à l'extrémité de pointe de la douille (42, 92) et définissant un axe central (94, 104) de la douille (42, 92). L'extension tubulaire (46, 96) comprend une ou plusieurs sections coniques ou cylindriques (74, 124) et une section de pointe (76, 126) distale de la ou des sections coniques ou cylindriques (74, 124) et adjacentes à l'extrémité de pointe. La section de pointe (76, 126) comprend une surface externe et une surface interne qui sont sensiblement parallèles l'une à l'autre et sensiblement parallèles à l'axe central (94, 104) de la douille (42, 92).