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US 2012/0230832 A1Published application
Winglet for a blade of a wind turbine
AssigneeSiemens Aktiengesellschaft
InventorJason STEGE
Life of this patent
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Abstract
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.
Claims12
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 epoxy foam.
The winglet according to claim 2,
- wherein the core of the winglet is made of a lightweight epoxy foam.
The winglet according to claim 3,
- wherein the lightweight epoxy foam show a density of 250 kg/m3.
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.
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.
Dependencies are inferred from the claim text.