IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0018822
(2008-01-24)
|
등록번호 |
US-8287243
(2012-10-16)
|
발명자
/ 주소 |
- Herr, Stefan
- Gauchel, Peter
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
7 |
초록
▼
A spinner configured to be mounted on a hub of a wind turbine to which at least one rotor blade is connected. The spinner defines a front portion configured to be positioned in front of an inner portion of the at least one rotor blade, and is structurally configured to cover a substantial portion of
A spinner configured to be mounted on a hub of a wind turbine to which at least one rotor blade is connected. The spinner defines a front portion configured to be positioned in front of an inner portion of the at least one rotor blade, and is structurally configured to cover a substantial portion of the inner portion of the at least one rotor blade in a wind direction during operation of the wind turbine. Further described is a wind turbine comprising the above-described spinner and a method for increasing the efficiency of an existing wind turbine, wherein the method includes mounting the above-described spinner to the hub of a wind turbine.
대표청구항
▼
1. A spinner configured to be mounted on a hub of a wind turbine, wherein at least one rotor blade is connected to the hub and defines a blade tip, a substantially cylindrical inner portion extending radially from the hub to an outer end of the inner portion, and a profiled outer portion extending r
1. A spinner configured to be mounted on a hub of a wind turbine, wherein at least one rotor blade is connected to the hub and defines a blade tip, a substantially cylindrical inner portion extending radially from the hub to an outer end of the inner portion, and a profiled outer portion extending radially from the outer end of the inner portion toward the blade tip, the spinner comprising: a front portion positioned in front of the inner portion of the at least one rotor blade of the wind turbine in operation;wherein the spinner extends radially from the hub in a direction along the at least one rotor blade to a point beyond the outer end of the inner portion of the at least one rotor blade and completely covers the inner portion of the at least one rotor blade and a portion of the profiled outer portion of the at least one rotor blade in a wind direction, and is structurally configured to allow rotation of the at least one rotor blade about its longitudinal axis for pitch angle adjustment of the at least one rotor blade without interfering with the rotation. 2. The spinner according to claim 1, wherein the spinner has a shape of a substantially spherical segment. 3. The spinner according to claim 1, wherein the spinner has a substantially paraboloidal shape. 4. The spinner according to claim 1, further comprising a back portion configured to surround the hub and defining a cut out corresponding to each inner portion of the at least one rotor blade of said wind turbine. 5. The spinner according to claim 4, wherein the back portion has a diameter corresponding to a minimum diameter of a back end of the front portion of the spinner. 6. The spinner according to claim 1, wherein a back end of the front portion of the spinner has, in a front view, a substantial circular shape. 7. The spinner according to claim 1, wherein a back end of the front portion of the spinner has, in a front view, a substantially undulating circumference, and at least one wave peak configured to be positioned in front of the inner portion of the at least one rotor blade. 8. A wind turbine comprising: a hub;at least one rotor blade connected to the hub, the rotor blade comprising a blade tip, a substantially cylindrical inner portion extending radially from the hub to an outer end of the inner portion and a profiled outer portion extending radially from the outer end of the inner portion toward the blade tip; anda spinner mounted on the hub and comprising a front portion positioned in front of the inner portion of the at least one rotor blade of the wind turbine in operation,wherein the spinner extends radially from the hub in a direction along the at least one rotor blade to a point beyond the outer end of the inner portion of the at least one rotor blade and completely covers the inner portion of the at least one rotor blade and a portion of the profiled outer portion of the at least one rotor blade in a wind direction, and is structurally configured to allow rotation of the at least one rotor blade about its longitudinal axis for pitch angle adjustment of the at least one rotor blade without interfering with the rotation. 9. The wind turbine according to claim 8, wherein the spinner has a shape of a substantially spherical segment. 10. The wind turbine according to claim 8, wherein the spinner has a substantially paraboloidal shape. 11. The wind turbine according to claim 8, wherein the spinner further comprises a back portion, configured to surround the hub and defining a cut out corresponding to each cylindrical inner portion of the at least one rotor blade. 12. The wind turbine according to claim 11, wherein the back portion has a substantially cylindrical shape. 13. The wind turbine according to claim 11, wherein the back portion has a diameter corresponding to a minimum diameter of the back end of the front portion. 14. The wind turbine according to claim 8, further comprising a nacelle comprising a housing, the hub being connected to the nacelle, wherein the housing of the nacelle has a substantially paraboloidal shape, the radial diameter of the front end of the nacelle being greater than the radial diameter of the backward end of the nacelle. 15. The wind turbine according to claim 14, wherein the radial outer diameter of the front end of the nacelle substantially corresponds to a minimum diameter of the back end of the front portion of the spinner. 16. The wind turbine according to claim 14, wherein the radial outer diameter of the front end of the nacelle is smaller than the minimum diameter of the back end of the front portion of the spinner. 17. The wind turbine according to claim 8, wherein, in a front view, the back end of the front portion of the spinner has a substantially undulating circumference, wherein at least one peak being adapted to be positioned in front of the inner portion of the at least one rotor blade. 18. A method for increasing the efficiency of an existing wind turbine comprising a hub and at least one rotor blade connected to the hub, the at least one rotor blade comprising a blade tip, a substantially cylindrical inner portion extending radially from the hub to an outer end of the inner portion and a profiled outer portion extending radially from the outer end of the inner portion toward the blade tip, the method comprising: mounting a spinner on the hub;wherein the spinner extends radially from the hub in a direction along the at least one rotor blade to a point beyond the outer end of the inner portion of the at least one rotor blade so that the spinner completely covers the inner portion of the at least one rotor blade and a portion of the profiled outer portion of the at least one rotor blade in a wind direction; andwherein the spinner is structurally configured to allow rotation of the at least one rotor blade about its longitudinal axis for pitch angle adjustment of the at least one rotor blade without interfering with the rotation. 19. The method according to claim 18, wherein an existing spinner is removed before mounting the spinner. 20. The method according to claim 18, wherein the wind turbine comprises a nacelle and the hub is connected to the nacelle, the method further comprising: mounting a housing on the nacelle, wherein the housing of the nacelle has a substantially paraboloidal shape and a radial diameter of a front end of the nacelle is greater than a radial diameter of a backward end of the nacelle.
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