IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0930698
(2013-06-28)
|
등록번호 |
US-9605649
(2017-03-28)
|
우선권정보 |
EP-12004850 (2012-06-28) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
7 |
초록
▼
A wind turbine rotor blade has a longitudinal axis, a blade root, a blade tip, a pressure side, a suction side and an aerodynamic profile which, in a longitudinal section of the rotor blade, has a profile chord and a thick trailing edge. The rotor blade includes a multiplicity of flow deflection ele
A wind turbine rotor blade has a longitudinal axis, a blade root, a blade tip, a pressure side, a suction side and an aerodynamic profile which, in a longitudinal section of the rotor blade, has a profile chord and a thick trailing edge. The rotor blade includes a multiplicity of flow deflection elements which are arranged on the thick trailing edge and have respective inflow surfaces which are shaped and arranged such that a radial flow running in the direction from the blade root toward the blade tip is diverted by the inflow surface in the direction of the profile chord.
대표청구항
▼
1. A wind turbine rotor blade defining a longitudinal axis, the wind turbine rotor blade comprising: a rotor blade body having a blade root, a blade tip, a pressure side, a suction side, a longitudinal section, and an aerodynamic profile;said aerodynamic profile having a height and defining a profil
1. A wind turbine rotor blade defining a longitudinal axis, the wind turbine rotor blade comprising: a rotor blade body having a blade root, a blade tip, a pressure side, a suction side, a longitudinal section, and an aerodynamic profile;said aerodynamic profile having a height and defining a profile chord and having a thick trailing edge in said longitudinal section of the rotor blade;said thick trailing edge defining a rear surface running generally linearly in the direction of the height of said profile;a plurality of flow deflection elements arranged on said thick trailing edge of said aerodynamic profile;each of said flow deflection elements having an inflow surface facing toward said blade root and configured to divert a radial flow of air flowing from said blade root toward said blade tip in a direction of said profile chord laterally away from said trailing edge;each of said inflow surfaces having a first section arranged in a direction of said rear surface of said thick trailing edge toward said blade root;each of said inflow surfaces including a second section extending transversely to said first section; and,each of said inflow surfaces further including an arcuate section connecting said first and second sections for deflecting said radial flow of air from said first section to said second section from where said radial flow of air flows laterally away from said trailing edge. 2. The wind turbine rotor blade of claim 1, wherein each of said inflow surfaces are concavely curved. 3. The wind turbine rotor blade of claim 1, wherein: said thick trailing edge has a height (H); and,said flow deflection elements extend over the entire height (H) of said thick trailing edge. 4. The wind turbine rotor blade of claim 1, wherein: each one of said flow deflection elements has a first side directed toward said blade tip and disposed opposite the inflow surface corresponding thereto; and,said first side of each of said flow deflection elements has a planar first surface arranged in the direction of said profile chord. 5. The wind turbine rotor blade of claim 1, wherein: said rotor blade body defines said longitudinal axis; and,said second section is arranged at a right angle to said longitudinal axis. 6. The wind turbine rotor blade of claim 1, wherein said second section is arranged at a right angle to said rear surface of said thick trailing edge. 7. The wind turbine rotor blade of claim 5, wherein each of said inflow surfaces further has edge sections adjoining the second section thereof and extending from opposite sides of the second section in a direction of said blade root. 8. The wind turbine rotor blade of claim 6, wherein each of said inflow surfaces further has edge sections adjoining the second section thereof and extending from opposite sides of the second section in a direction of said blade root. 9. The wind turbine rotor blade of claim 5, wherein said arcuate section arranged between the first section and the second section is concavely curved. 10. The wind turbine rotor blade of claim 6, wherein said arcuate section is a concavely curved middle section arranged between the first section and the second section thereof. 11. The wind turbine rotor blade of claim 1, wherein: each of said flow deflection elements has a length (L); and,each of said inflow surfaces has a height (H) which is constant over the length (L) of the flow deflection element corresponding thereto. 12. The wind turbine rotor blade of claim 1, wherein each of said flow deflection elements has a length (L) and a height (H) which is constant over the length (L) thereof. 13. The wind turbine rotor blade of claim 1, wherein said flow deflection elements are arranged at a distance in the range of 1 m to 4 m from each other. 14. The wind turbine rotor blade of claim 1, wherein said flow deflection elements each have a height (H) and a depth (T) which is a factor of 0.5 to 1.5 greater than said height (H) thereof. 15. The wind turbine rotor blade of claim 1, wherein said flow deflection elements are made of a plastics material.
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