[특허]Actuatable surface features for wind turbine rotor blades

General Electric Corporation

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Actuatable surface features for wind turbine rotor blades

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B64C-009/00
미국특허분류(USC)	416/023; 244/204.1
출원번호	US-0015693 (2011-01-28)
등록번호	US-8167554 (2012-05-01)
발명자 / 주소	Wang, Jing McGrath, Edward Lee Fischetti, Thomas Joseph
출원인 / 주소	General Electric Corporation
대리인 / 주소	Dority & Manning, P.A.
인용정보	피인용 횟수 : 5 인용 특허 : 16

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A rotor blade for a wind turbine is disclosed. The rotor blade may generally include a shell having a pressure side and a suction side. The shell may define an opening in at least one of the pressure and suction sides. The rotor blade may also include a base and at least two surface features spaced apart along the outer perimeter of the base. The base may generally be movable relative to the opening between a recessed position and an actuated position. Additionally, the base may be rotatable within the shell in order to adjust which of the surface featur...

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1. A rotor blade for a wind turbine, the rotor blade comprising: a shell having a pressure side and a suction side, said shell defining an opening in at least one of said pressure side and said suction side;a base at least partially disposed within said shell, said base being movable relative to said opening between a recessed position and an actuated position; and,at least two surface features spaced apart along an outer perimeter of said base,wherein said base is rotatable within said shell in order to adjust which of said at least two surface features is received within said opening when said base is moved to said actuated position. 2. The rotor blade of claim 1, wherein one of said at least two surface features comprises a spoiler. 3. The rotor blade of claim 2, wherein said spoiler defines a substantially rectangular cross-sectional shape. 4. The rotor blade of claim 2, wherein said spoiler is configured as a corrugated plate. 5. The rotor blade of claim 2, wherein a height is defined between a tip end of said spoiler and an outer surface of said shell when said spoiler is received within said opening, said height ranging from about 0.05% to about 1.5% of the chord defined at a spanwise location of said base. 6. The rotor blade of claim 1, wherein one of said at least two surface features comprises a vortex generator. 7. The rotor blade of claim 6, wherein said vortex generator comprises a plurality of angled vanes. 8. The rotor blade of claim 1, wherein one of said at least two surface features comprises a skin segment, said skin segment defining an aerodynamic profile generally corresponding to an aerodynamic profile of an outer surface of said shell. 9. The rotor blade of claim 1, wherein said at least two surface features comprises a spoiler, a vortex generator and a skin segment spaced apart along said outer perimeter of said base. 10. The rotor blade of claim 1, wherein said base is disposed a distance from a leading edge of said shell ranging from about 5% to about 30% of the chord defined at a spanwise location of said base. 11. The rotor blade of claim 1, further comprising an actuator disposed within said shell, said actuator being configured to move said base between said recessed and actuated positions. 12. The rotor blade of claim 11, wherein said actuator is further configured to rotate said base within said shell when said base in said recessed position. 13. The rotor blade of claim 12, wherein said actuator comprises a linear displacement device coupled to a rotational displacement device. 14. A wind turbine comprising: a tower;a nacelle mounted atop said tower;a rotor hub coupled to said nacelle; anda plurality of rotor blades extending outwardly from said rotor hub, at least one of said plurality of rotor blades comprising: a shell having a pressure side and a suction side, said shell defining an opening in at least one of said pressure side and said suction side;a base at least partially disposed within said shell, said base being movable relative to said opening between a recessed position and an actuated position; and,at least two surface features spaced apart along an outer perimeter of said base,wherein said base is rotatable within said shell in order to adjust which of said at least two surface features is received within said opening when said base is moved to said actuated position. 15. The wind turbine of claim 14, wherein one of said at least two surface features comprises a spoiler. 16. The wind turbine of claim 15, wherein a height is defined between a tip end of said spoiler and an outer surface of said shell when said spoiler is received within said opening, said height ranging from about 0.05% to about 1.5% of the chord defined at a spanwise location of said base. 17. The wind turbine of claim 14, wherein one of said at least two surface features comprises a vortex generator. 18. The wind turbine of claim 14, wherein one of said at least two surface features comprises a skin segment, said skin segment defining an aerodynamic profile generally corresponding to an aerodynamic profile of an outer surface of said shell. 19. The wind turbine of claim 14, wherein said at least two surface features comprises a spoiler, a vortex generator and a skin segment spaced apart along said outer perimeter of said base. 20. The wind turbine of claim 14, further comprising an actuator disposed within said shell, said actuator being configured to move said base between said recessed and actuated positions and rotate said base within said shell when said base in said recessed position.

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이 특허를 인용한 특허 피인용횟수: 5

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Actuatable surface features for wind turbine rotor blades

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Actuatable surface features for wind turbine rotor blades

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이 특허에 인용된 특허 (16)

이 특허를 인용한 특허 피인용횟수: 5

IPC 상위 출원인

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IPC 상세정보(version : 201201)

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