IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0886613
(2006-03-20)
|
등록번호 |
US-8511996
(2013-08-20)
|
우선권정보 |
ES-200500740 (2005-03-31) |
국제출원번호 |
PCT/ES2006/000147
(2006-03-20)
|
§371/§102 date |
20090113
(20090113)
|
국제공개번호 |
WO2006/103307
(2006-10-05)
|
발명자
/ 주소 |
- Llorente Gonzalez, Jose Ignacio
- Velez Oria, Sergio
|
출원인 / 주소 |
- Gamesa Innovation & Technology, S.L.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
5 |
초록
▼
The invention relates to a blade for wind-power generators. The inventive blade is divided transversely into two or more independent sections, each section comprising aerodynamic skins or walls (3) and an inner longitudinal reinforcing structure (4). In addition, the ends of the aforementioned secti
The invention relates to a blade for wind-power generators. The inventive blade is divided transversely into two or more independent sections, each section comprising aerodynamic skins or walls (3) and an inner longitudinal reinforcing structure (4). In addition, the ends of the aforementioned sections are equipped with connection means comprising metal inserts (10) which are housed and fixed axially inside the walls of the inner longitudinal resistant structure.
대표청구항
▼
1. A blade for a wind-power generator, which is transversally sub-divided into one or more independent sections, each of which consists of aerodynamic walls or hulls (3) and a longitudinal inner reinforcing structure (4) conceived as a box beam running along the sections, which includes intermediate
1. A blade for a wind-power generator, which is transversally sub-divided into one or more independent sections, each of which consists of aerodynamic walls or hulls (3) and a longitudinal inner reinforcing structure (4) conceived as a box beam running along the sections, which includes intermediate walls (6) and adjoining walls (5) that are joined by means of adhesive to the aerodynamic hulls (3) and form part of them, the sections of which are equipped with connection means on end sections of the longitudinal inner reinforcing structure (4), with said connection means having counter-facing orifices for receiving anchoring bolts or pins, wherein said connection means consist of metal inserts (10) which are housed inside a profile (9) of carbon fiber that is secured axially inside the adjoining walls (5) of the longitudinal inner reinforcing structure (4), along an end sector (15) of the same, in positions aligned with the counter-facing sections (1, 2) of consecutive sections (1, 2). 2. The blade in accordance with claim 1, wherein the adjoining walls (5) of the longitudinal inner reinforcing structure (4) upon which the metal inserts (10) are located are comprised of, at least on part of its length, a sandwich (11) formed by a layer (7) of reinforcing fibers and an intermediate core (8), with said metal inserts (10) being joined to the layers (7) of reinforcing fiber, to transmit stresses through said layers. 3. The blade in accordance with claim 2, wherein upon the adjoining walls (5) of the longitudinal inner reinforcing structure, along the end sector of the same and in line with the intermediate core (8), carbon fiber tubular profiles (9) are located defining the core of the sandwich and making contact with and being joined to the reinforcing fiber layers of said sandwich, with metal inserts (10) being located upon the profiles of the same, with said inserts (10) having an external section equal to the internal section of the profiles (9) to which they are joined by means of adhesive. 4. The blade in accordance with claim 2, wherein the sandwich of the adjoining walls (5) of the longitudinal reinforcing structure are transformed into the end sections on which the metal inserts (10) are located, on a solid laminate (12) of reinforcing fibers, upon which the housing for said inserts (10) are machined, with said inserts (10) being secured by means of adhesive to the reinforcing fibers. 5. The blade in accordance with claim 1, wherein the metal inserts (10) have counter-facing axial drilled holes (19, 20) on their external section, in order to receive connection bolts, which are anchored using nuts and function under tension. 6. The blade in accordance with claim 5, wherein the drilled hole (19) of one of the inserts (10) is threaded in order to secure one of the ends of a bolt, whilst the opposing drill hole (20) is not threaded and is slightly larger in diameter than the bolt, in order to allow said bolt to pass through and protrude by a section to receive a lock nut. 7. The blade in accordance with claim 1, wherein the metal inserts (10) have lugs (21) on their external section which are slightly out of line with the counter-facing inserts (10) so that the lugs (21) are adjacent to each other when two consecutive sections (1, 2) are joined, with said lugs (21) having counter-facing orifices (22) in the adjacent position in order to receive a shear connection bolt (23) or pin in a direction which is perpendicular to the longitudinal shaft of the sections (1, 2).
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