Patent ID: 7815536
Filing Date: 2010-10-19
Classification: F03D,F16H,H02K,Y02E

Abstract:
1. A drive train for a wind turbine, said wind turbine comprising a rotor connected to a low speed shaft, the low speed shaft connected to a gearbox, said gearbox having a high speed shaft connected to a generator, the generator comprising a generator rotor and a stator, said drive train comprising: a bearing interposed between said gearbox and said generator; a hub mount connected to the generator and the bearing; a gearbox lubrication medium at least partially contained within said gearbox; wherein, said bearing shares said gearbox lubrication medium with said gearbox; and wherein the generator is connected to the hub mount with insulating fasteners, the insulating fasteners providing substantial electrical isolation between the generator rotor and the gearbox.