Patent ID: 8847422

Claim:
A wind power station, comprising a vertical tower, a rotor that comprises a hub part and blades that is fitted to the top end of the tower and that is aligned into the wind and rotated by the wind, a rotor shaft, which transmits rotating motion to a generator connected to the rotor shaft in a direct-drive power station or to a gear box in a geared power station, and also a revolving frame that is fitted to the top end of the tower on bearings so as to rotate around the vertical axis, in the revolving frame the rotor shaft being mounted on bearings, wherein a top part of the tower comprises a first bearing that mainly bears at least a vertical load coming from the revolving frame, and a second bearing disposed at a distance H from the first bearing, the second bearing bears mainly a radial load coming from the revolving frame, and the support of the upper one of the first and second bearings is arranged by means of a support piece leaving the tower and fitted inside the revolving frame, and wherein the revolving frame has a bushing receiving the rotor shaft therein.