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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0055603 (2016-02-28) |
| 등록번호 | US-9945355 (2018-04-17) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 0 인용 특허 : 411 |
A composite beam for a wind turbine blade includes a preform layer, the preform layer including multiple elongate strength rods arranged longitudinally relative to one another in a single layer, each strength rod being disposed adjacent to and spaced from at least one adjacent strength rod. Each str
A composite beam for a wind turbine blade includes a preform layer, the preform layer including multiple elongate strength rods arranged longitudinally relative to one another in a single layer, each strength rod being disposed adjacent to and spaced from at least one adjacent strength rod. Each strength rod has a rectangular cross section and includes multiple, substantially straight collimated structural fibers fixed in a solidified matrix resin. The preform layer includes at least one carrier layer to which the multiple strength rods are joined by an adhesive. The carrier layer spaces adjacent strength rods a fixed distance apart to facilitate the flow of liquid bonding resin between adjacent strength rods of the preform layer to its joined carrier layer, the carrier layer being of a permeable material suitable to facilitate the flow of liquid bonding resin through the carrier layer.
1. A composite beam for a wind turbine blade comprising: a preform layer, the preform layer including multiple elongate strength rods arranged longitudinally relative to one another in a single layer, each strength rod being disposed adjacent to and spaced from at least one adjacent strength rod;eac
1. A composite beam for a wind turbine blade comprising: a preform layer, the preform layer including multiple elongate strength rods arranged longitudinally relative to one another in a single layer, each strength rod being disposed adjacent to and spaced from at least one adjacent strength rod;each strength rod having a rectangular cross section and including multiple, substantially straight collimated structural fibers fixed in a solidified matrix resin; the preform layer including at least one carrier layer to which the multiple strength rods are joined by an adhesive; wherein the carrier layer spaces adjacent strength rods a fixed distance apart to facilitate the flow of liquid bonding resin between adjacent strength rods of the preform layer to its joined carrier layer, the carrier layer being of a permeable material suitable to facilitate the flow of liquid bonding resin through the carrier layer. 2. The composite beam of claim 1, including an absence of material between each strength rod, the absence of material permitting flow of liquid bonding resin between adjacent strength members. 3. The composite beam of claim 1, wherein the carrier layer includes at least one of: a nonwoven material and a woven material. 4. The composite beam of claim 3, wherein the at least one of a nonwoven material and a woven material is selected for its wettability and material compatibility. 5. The composite beam of claim 1, wherein the adhesive is an adhesive compatible with the liquid bonding resin. 6. The composite beam of claim 1, wherein each of the rectangular strength rods include rounded edges. 7. The composite beam of claim 6, wherein the rounded edges of the strength rods define an edge radius of curvature. 8. The composite beam of claim 7, wherein the edge radius is less than an upper limit of ¼ of the thickness of the rectangular strength rods. 9. The composite beam of claim 8, wherein the preform layer is stacked with one or more preform layers and wherein the edge radius is greater than ¼ of the spacing between individual preform layers. 10. The composite beam of claim 1, wherein the rectangular cross sections of each of the strength rods are substantially the same size. 11. The composite beam of claim 1, wherein the preform layer is stacked with one or more preform layers. 12. The composite beam of claim 11, wherein the stacked preform layers are stacked in a brick pattern. 13. The composite beam of claim 11, wherein the stacked preform layers are stacked in a column pattern. 14. The composite beam of claim 11, wherein the stacked preform layers are stacked in a random pattern. 15. The composite beam of claim 11, wherein the composite beam forms one or more of a spar cap, an I-beam, a shear web and other structural blade components of the wind turbine blade. 16. The composite beam of claim 1, wherein the carrier layer of the perform layer comprises at least one of a nonwoven material and a woven material having one or more of substantially unidirectional: multiple fibers, multiple yarns and multiple rovings disposed at a substantially transverse orientation relative to the longitudinal axis of the strength rods.
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