Invention Grant
- Patent Title: Wind turbine with hinged blades having a hinge position between inner and outer tip end of the blades
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Application No.: US15734272Application Date: 2019-06-12
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Publication No.: US11319921B2Publication Date: 2022-05-03
- Inventor: Thomas S. Bjertrup Nielsen , Peter Bjørn Andersen
- Applicant: Vestas Wind Systems A/S
- Applicant Address: DK Aarhus N.
- Assignee: Vestas Wind Systems A/S
- Current Assignee: Vestas Wind Systems A/S
- Current Assignee Address: DK Aarhus N.
- Agency: Wood Herron & Evans LLP
- Priority: DKPA201870393 20180614,DKPA201870590 20180913
- International Application: PCT/DK2019/050184 WO 20190612
- International Announcement: WO2019/238192 WO 20191219
- Main IPC: F03D1/06
- IPC: F03D1/06 ; F03D7/02

Abstract:
A wind turbine (1) comprising a tower (2), a nacelle (3) and a hub (7) is disclosed. The hub (7) comprises a blade carrying structure (4) with one or more wind turbine blades (5) connected to thereto. Each of the wind turbine blades (5) defines an aerodynamic profile having a thickness which varies along a length of the wind turbine blade (5). Each of the wind turbine blades (5) is connected to the blade carrying structure (4) via a hinge (6) at a hinge position of the wind turbine blade (5), each wind turbine blade (5) thereby being arranged to perform pivot movements relative to the blade carrying structure (4) between a minimum pivot angle and a maximum pivot angle. The hinge position is arranged at a distance from the inner tip end (5a) and at a distance from the outer tip end (5b), and the thickness, or the thickness-to chord ratio, at the hinge position is larger than the thickness, or the thickness-to-chord ratio, at the inner tip end (5a) and larger than the thickness, or the thickness-to-chord ratio, at the outer tip end (5b).
Public/Granted literature
- US20210215130A1 A WIND TURBINE WITH HINGED BLADES HAVING A HINGE POSITION BETWEEN INNER AND OUTER TIP END OF THE BLADES Public/Granted day:2021-07-15
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