IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0154570
(2008-05-23)
|
등록번호 |
US-8157532
(2012-04-17)
|
우선권정보 |
ES-200701494 (2007-05-31) |
발명자
/ 주소 |
- Matesanz Gil, Alvaro
- Garcillan Rueda, Luis Miguel
|
출원인 / 주소 |
- Gamesa Innovation & Technology, S.L.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
2 |
초록
▼
A wind turbine comprising at least a blade (11) having an aerodynamic profile with a leading edge (13), a trailing edge (15) and suction and pressure sides between the leading edge (13) and the trailing edge (15) that includes an anti-noise device (31) placed on the suction side formed by elements (
A wind turbine comprising at least a blade (11) having an aerodynamic profile with a leading edge (13), a trailing edge (15) and suction and pressure sides between the leading edge (13) and the trailing edge (15) that includes an anti-noise device (31) placed on the suction side formed by elements (33) that modify the frequency spectra of the boundary layer noise. Preferably the anti-noise device (31) is placed on the suction side between two sections corresponding to chord positions in the range of 40%-95% of the chord length, measured from the leading edge (13).
대표청구항
▼
1. A wind turbine comprising at least a blade (11) having an aerodynamic profile with a leading edge (13), a trailing edge (15) and a suction side and a pressure side between the leading edge (13) and the trailing edge (15), wherein the blade (11) includes an anti-noise device (31) placed on the suc
1. A wind turbine comprising at least a blade (11) having an aerodynamic profile with a leading edge (13), a trailing edge (15) and a suction side and a pressure side between the leading edge (13) and the trailing edge (15), wherein the blade (11) includes an anti-noise device (31) placed on the suction side formed by a plurality of elements (33) which are bodies of an arrow shape, said bodies being defined by left and right upper and lower trapezoidal faces (51, 53, 55, 57) with common central sides from an arrow tip (41) to an arrow center (43) and lateral faces (61, 63, 65, 67, 69, 71) extending between said upper and lower trapezoidal faces (51, 53, 55, 57), that modify a frequency spectra of boundary layer noise. 2. The wind turbine according to claim 1, wherein said anti-noise device (31) is placed on the suction side between two sections corresponding to chord positions in a range of 40%-95% of a chord length, measured from the leading edge (13). 3. The wind turbine according to claim 2, wherein said anti-noise device (31) is placed along a section of the blade (11) extending between 5% to 100% of its length measured from its root (19). 4. The wind turbine according to claim 3, wherein said anti-noise device (31) is placed along a section of the blade (11) extending between 66% to 100% of its length measured from its root (19). 5. The wind turbine according to claim 1, wherein the plurality of elements (33) of the anti-noise device (31) are placed on the blade (11) individually, leaving spaces between them. 6. The wind turbine according to claim 1, wherein the elements (33) of the anti-noise device (31) are placed on the blade (11) in groups, leaving spaces between the groups. 7. The wind turbine according to claim 1, wherein the plurality of elements (33) of the anti-noise device (31) are placed on the blade (11) side by side without leaving spaces between the plurality of elements (33). 8. The wind turbine blade according to claim 1, wherein said elements (33) are placed on the blade (11) with the arrow tip (41) oriented towards the leading edge (13). 9. The wind turbine blade according to claim 1, wherein said elements (33) are placed on the blade (11) with the arrow tip (41) oriented towards the trailing edge (15). 10. The wind turbine blade according to claim 1, wherein heights (t1, t2, t3 and t4) of, respectively, the arrow tip (41), the arrow center (43), and arrow left and right ends (45, 47) are comprised between 0-10 mm. 11. The wind turbine blade according to claim 10, wherein the height (t1) of the arrow tip (41) is less than the height (t2) of the arrow center (43) and the heights (t3, t4) of the arrow left and right ends (45, 47) are less than the height (t2) of the arrow center (43) and greater than the height (t1) of the arrow tip (41). 12. The wind turbine blade according to claim 1, wherein a first angle (θ1) between an outer side (75) of the left upper face (51) and an arrow axis (77) is comprised between 5-60 degrees and a second angle (θ2),between the outer side (79) of the right upper trapezoidal face (53) and the arrow axis (77) is comprised between 5-60 degrees. 13. The wind turbine blade according to claim 1, wherein a third angle (θ3)between an inner side (81) of the left upper trapezoidal face (51) and an arrow axis (77) is comprised between 30-90 degrees and a fourth angle (θ4) between an inner side (83) of the right upper trapezoidal face (53) and the arrow axis (77) is comprised between 30-90 degrees. 14. The wind turbine blade according to claim 1, wherein a first length (λ1) of a side (85) connecting inner and outer sides (81, 75) of the left upper face (51) is comprised between 0-20 cm, a second length (λ2) of the side (87) connecting inner and outer sides (83, 79) of the right upper trapezoidal face (53) is comprised between 0-20 cm and a third length (λ3) of a side projection of said elements (33) is comprised between 0-20 cm and a fourth length (λ4) of a frontal projection of said elements (33) is comprised between 0-20 cm.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.