Invention Grant
- Patent Title: Wind turbine blade with base part having non-positive camber
- Patent Title (中): 风力涡轮机叶片,基部具有非正外倾角
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Application No.: US13320923Application Date: 2010-05-18
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Publication No.: US09057359B2Publication Date: 2015-06-16
- Inventor: Peter Fuglsang , Stefano Bove , Lars Fuglsang
- Applicant: Peter Fuglsang , Stefano Bove , Lars Fuglsang
- Applicant Address: DK Kolding
- Assignee: LM GLASFIBER A/S
- Current Assignee: LM GLASFIBER A/S
- Current Assignee Address: DK Kolding
- Agency: Nath, Goldberg & Meyer
- Agent Tanya E. Harkins; Sanjana Mangalagiri
- Priority: EP09160479 20090518
- International Application: PCT/EP2010/056799 WO 20100518
- International Announcement: WO2010/133584 WO 20101125
- Main IPC: F03D1/06
- IPC: F03D1/06

Abstract:
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.
Public/Granted literature
- US20120057987A1 WIND TURBINE BLADE WITH BASE PART HAVING NON-POSITIVE CAMBER Public/Granted day:2012-03-08
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