IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0422396
(2009-04-13)
|
등록번호 |
US-8206107
(2012-06-26)
|
발명자
/ 주소 |
- Dawson, Mark H.
- Wallace, Jack
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
24 |
초록
▼
A wind turbine blade having a longitudinal axis is provided. The wind turbine blade includes a root portion and a tip portion. The root portion has a supported end and an unsupported end. The tip portion is configured to be slidably received within the unsupported end of the root portion. A transver
A wind turbine blade having a longitudinal axis is provided. The wind turbine blade includes a root portion and a tip portion. The root portion has a supported end and an unsupported end. The tip portion is configured to be slidably received within the unsupported end of the root portion. A transverse gap is defined between the root portion and the tip portion. A transition element is affixed to the unsupported end of the root portion such that the transition element at least partially bridges the transverse gap. The wind turbine blade may further include blade cleaning elements and/or sensing elements, particularly in the vicinity of the transition element.
대표청구항
▼
1. A wind turbine blade having a longitudinal axis, the wind turbine blade comprising: a first blade element having a supported end, an unsupported end, a leading edge longitudinally extending therebetween, and an outer surface;a second blade element having an outer surface and configured to be slid
1. A wind turbine blade having a longitudinal axis, the wind turbine blade comprising: a first blade element having a supported end, an unsupported end, a leading edge longitudinally extending therebetween, and an outer surface;a second blade element having an outer surface and configured to be slidably received within the unsupported end of the first blade element; anda transition element extending from the unsupported end of the first blade element, wherein the transition element has a longitudinally extending leading edge that is angled relative to the longitudinally extending leading edge of the first blade element. 2. The blade of claim 1, wherein, adjacent to the unsupported end of the first blade element, the transition element has an aerodynamically-shaped outer surface that follows an aerodynamically-shaped outer surface of the first blade element. 3. The blade of claim 1, wherein the longitudinally extending leading edge of the transition element is angled from a longitudinally extending leading edge of the second blade element. 4. The blade of claim 1, wherein the transition element is fastened to the first blade and is at least partially flexible. 5. The blade of claim 1, wherein the transition element at least substantially encircles the second blade element. 6. The blade of claim 1, further comprising: a blade cleaning element, wherein at least a component of the blade cleaning element is attached to the transition element. 7. The blade of claim 1, further comprising: a sensing element located in a region of the wind turbine blade where the first and the second blade elements slide past one another. 8. The blade of claim 1, further comprising: a sensing element, wherein at least a component of the sensing element is attached to the transition element. 9. A wind turbine blade comprising: a first blade element;a second blade element; anda blade cleaning element attached to the first blade element and configured to remove unwanted material from a surface of the second blade element. 10. The blade of claim 9, wherein the wind turbine blade defines a longitudinal axis and the second blade element is configured to slide, substantially longitudinally, into the first blade element, and wherein the blade cleaning element is located between the first and second blade elements. 11. The blade of claim 9, wherein the first blade element includes a transition element extending from an unsupported end, wherein at least a component of the blade cleaning element is attached to the transition element. 12. The blade of claim 9, wherein the blade cleaning element includes a wiping element configured to at least partially wipe against the second blade element when the second blade element slides relative to the first blade element. 13. The blade of claim 9, wherein the blade cleaning element includes an applicator for applying a cleaning solution to the second blade element. 14. The blade of claim 9, wherein the blade cleaning element includes a de-icer. 15. A wind turbine blade defining a longitudinal axis, the wind turbine blade comprising: a first blade element having a supported end, an unsupported end and a leading edge longitudinally extending therebetween;a second blade element, wherein the second blade element is configured to slide, substantially longitudinally, into the first blade element;a transition element extending from the unsupported end of the first blade element and having a longitudinally extending leading edge that is angled relative to the longitudinally extending leading edge of the first blade element; anda sensing element having at least one component located within the transition element. 16. The blade of claim 15, wherein the transition element is fastened to the unsupported end of the first blade element, and wherein at least a component of the sensing element is attached to the transition element. 17. The blade of claim 15, wherein the sensing element senses at least one of a pressure and a load between the first blade element and a second blade element. 18. The blade of claim 15, wherein the sensing element senses at least one of a stress and a strain. 19. The blade of claim 15, wherein the sensing element senses a temperature. 20. The blade of claim 15, wherein the sensing element senses an air pressure. 21. The blade of claim 15, wherein the sensing element senses at least one of a relative displacement, velocity and acceleration between the first blade element and the second blade element. 22. The blade of claim 15, wherein the sensing element provides input information to a control system of the wind turbine. 23. The blade of claim 1, wherein the transition element is fastened to the first blade and is configured to accommodate a change in cross-section of the second blade relative to the first blade. 24. The blade of claim 1, wherein the transition element is flexibly biased against the outer surface of the second blade. 25. The blade of claim 1, wherein the transition element has a longitudinally extending trailing edge that is angled relative to a longitudinally extending trailing edge of the first blade element.
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