Winglet for a blade of a wind turbine
View Patent ↗A winglet for a blade of a wind turbine is disclosed. The winglet contains a core with a predetermined water absorption-rate to reduce or even avoid the absorption of water in the core. This may be achieved via different variations on the core material and/or core cover material including composition, density and thickness.
1. A winglet for a blade of a wind turbine, comprising:
a core with a predetermined water absorption-rate to reduce or even avoid the absorption of water in the core,
wherein the core of the winglet is made of a lightweight epoxy foam, and
wherein the lightweight epoxy foam has a density of 250 kg/m3.
2. The winglet according to claim 1 ,
wherein the exterior surface of the core is covered by a sheet of glass fiber.
3. The winglet according to claim 2 ,
wherein the glass fiber covers the core like a skin with a thickness between 1 mm and 5 mm.
4. The winglet according to claim 1 ,
where the winglet is prepared for a connection with a blade of a wind turbine.
5. A winglet for a blade of a wind turbine, comprising:
a core with a predetermined water absorption-rate to reduce or even avoid the absorption of water in the core,
wherein the exterior surface of the core is covered by a sheet of glass fiber.
6. The winglet according to claim 5 ,
wherein the glass fiber covers the core like a skin with a thickness between 1 mm and 5 mm.
7. The winglet according to claim 5 ,
wherein the core of the winglet is made of a lightweight epoxy foam.
8. The winglet according to claim 5 ,
wherein the lightweight epoxy foam show a density of 250 kg/m3.
9. The winglet according to claim 5 ,
where the winglet is prepared for a connection with a blade of a wind turbine.