Invention Grant
- Patent Title: Wind turbine and a pitch bearing for a wind turbine
- Patent Title (中): 风力发电机和风力发电机的变桨轴承
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Application No.: US13071080Application Date: 2011-03-24
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Publication No.: US08109729B2Publication Date: 2012-02-07
- Inventor: Jesper Lykkegaard Andersen
- Applicant: Jesper Lykkegaard Andersen
- 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, L.L.P.
- Priority: DK201000260 20100329
- Main IPC: F03D11/00
- IPC: F03D11/00

Abstract:
A wind turbine includes a rotor having a rotational axis and a wind turbine blade connected to a hub through a pitch bearing. The pitch bearing includes an outer ring, a center ring and an inner ring. The pitch bearing further includes a first rolling element arrangement having at least two rows of rolling elements between the center ring and one of the inner and outer rings, and a second rolling element arrangement having at least one row of rolling elements between the center ring and the other of the inner and outer rings. A first row of the at least two rows is arranged at a first distance from the rotational axis, and a second row of the at least two rows is arranged at a second distance from the rotational axis greater than the first distance. A pitch bearing for a wind turbine is also disclosed.
Public/Granted literature
- US20110243738A1 WIND TURBINE AND A PITCH BEARING FOR A WIND TURBINE Public/Granted day:2011-10-06
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