Patent ID: 8436486

Claim:
A gearless wind power turbine comprising a drive train including a rotor hub carrying rotor blades, a main shaft, and a generator having a power larger than 500 kW with a generator housing a stator and a generator shaft rigidly connected to the main shaft, the main shaft having a main shaft axis, a tower, and a supporting frame mounted on the tower, a) the rotor hub and the generator being located on opposite sides with respect to the tower; b) the main shaft being supported by the supporting frame by means of a front bearing close to the rotor hub and a rear bearing close to the generator; c) the stator, being rigidly attached to the generator housing, the gearless wind power turbine also comprising a coupling element between the generator housing and the supporting frame; the coupling element being placed in a plane substantially coincident with a perpendicular plane to the main shaft axis in the center of the rear bearing and made so that it blocks turning displacements of the generator housing with respect to the main shaft axis, the coupling element being stiff in said perpendicular plane, wherein the stator is supported by the generator shaft by means of two bearings; and the coupling element is a flexible in the direction of the main shaft axis to allow the displacements of the generator housing in the direction of the main shaft axis.