Patent ID: 7837439
Filing Date: 2010-11-23
Classification: F03D,F05B,Y02E,Y10S

Abstract:
1. A wind turbine blade comprising one or more oscillation dampers for damping oscillations or vibrations of the wind turbine blade, said dampers comprising one or more first damper parts having one or more first damper part surfaces, said first damper parts being rigidly connected to said blade or being a part of said blade, one or more second damper parts having one or more second damper part surfaces, wherein said first damper part surfaces and said second damper part surfaces are arranged to move relatively to each other during said oscillations, said dampers further comprising a load transferring coupling directly or indirectly coupling said first damper part surfaces and said second damper part surfaces, so that said relative movement result in a oscillation-damping dissipation of kinetic energy, and wherein said load transferring coupling comprises a semi-liquid substance.