发明授权
- 专利标题: Wind turbine blade with base part having non-positive camber
- 专利标题(中): 风力涡轮机叶片,基部具有非正外倾角
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申请号: US13320923申请日: 2010-05-18
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公开(公告)号: US09057359B2公开(公告)日: 2015-06-16
- 发明人: Peter Fuglsang , Stefano Bove , Lars Fuglsang
- 申请人: Peter Fuglsang , Stefano Bove , Lars Fuglsang
- 申请人地址: DK Kolding
- 专利权人: LM GLASFIBER A/S
- 当前专利权人: LM GLASFIBER A/S
- 当前专利权人地址: DK Kolding
- 代理机构: Nath, Goldberg & Meyer
- 代理商 Tanya E. Harkins; Sanjana Mangalagiri
- 优先权: EP09160479 20090518
- 国际申请: PCT/EP2010/056799 WO 20100518
- 国际公布: WO2010/133584 WO 20101125
- 主分类号: F03D1/06
- IPC分类号: F03D1/06
摘要:
A blade, for a rotor of a wind turbine has a profiled contour in a radial direction is divided into a root region with a substantially circular or elliptical profile closest to the hub and an airfoil region with a lift generating profile furthest away from the hub. A transition region between the root region and the airfoil region has a profile gradually changing in the radial direction from the circular or elliptical profile of the root region to the lift generating profile of the airfoil region, and the airfoil region comprises at least a first longitudinal segment extending at least 20% of a longitudinal extent of the airfoil region. The first longitudinal segment has a first base part with a cross-sectional profile such that, when impacted by an incident airflow at an angle of attack of 0 degrees has a lift coefficient, which is 0 or less.
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