Invention Application
- Patent Title: PTICH SYSTEM FOR A WIND TURBINE
- Patent Title (中): 风力涡轮机系统
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Application No.: US14369920Application Date: 2012-11-29
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Publication No.: US20140328681A1Publication Date: 2014-11-06
- Inventor: Erik Garde
- Applicant: Vestas Wind Systems A/S
- International Application: PCT/DK2012/050437 WO 20121129
- Main IPC: F03D7/02
- IPC: F03D7/02 ; F03D7/04

Abstract:
A wind turbine comprises a hub, a blade rotatably mounted to the hub, and a pitch system. The pitch system includes a support, a first drive configured to rotate the blade relative to the support, a second drive configured to rotate the support relative to the hub. The support is configured to be selectively fixed relative to the blade and the hub such that the first or second drive may be used to pitch the blade. A method of pitch corresponding to this operation is provided.
Public/Granted literature
- US09803620B2 Pitch system for a wind turbine Public/Granted day:2017-10-31
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