Patent ID: 8298113
Filing Date: 2012-10-30
Classification: F03D,F05B,F16H,Y02E,Y10T

Abstract:
1. A wind power turbine having a gearbox, a hub, and a shaft having a cavity; wherein a torque can be transmitted from the hub via the shaft to the gearbox; wherein at least part of the gearbox is arranged within the cavity in the shaft so that the shaft forms a rotating gearbox housing; wherein the gearbox is a multi-stage planetary gearbox; wherein at least two stages with gear trains of the multi-stage planetary gearbox are arranged entirely inside the cavity of the shaft; wherein the wind power turbine further comprises a prestressed rolling-element bearing; wherein the shaft is mounted in the prestressed rolling-element bearing; wherein the prestressed rolling-element bearing is divided into two axially; and wherein the at least two stages of the multi-stage planetary gearbox which are arranged within the cavity in the shaft are axially arranged in-between the two prestressed rolling-element bearings.