Patent ID: 8632437

Claim:
A drive system for a wind turbine comprising: a transmission unit comprising at least one planet wheel stage having a hollow wheel, several planet wheels, a planet carrier and a sun wheel, a first shaft associated with the transmission unit and comprising a coupling flange configured to be elastically connected to a work machine shaft or a rotor shaft and to be supported by the planet carrier, and a gear housing enclosing the transmission unit and a motor unit or generator unit connected to a second shaft of the transmission unit, with the gear housing comprising a circumferentially symmetric or partially symmetric flexible suspension for connection to a supporting structural element of the wind turbine, wherein the flexible suspension is formed by a one-piece ring support fully circumferentially radially enclosing the gear housing, or by two ring segment supports partially circumferentially radially enclosing the gear housing, with the ring support or each of the two ring segments comprising several circumferentially arranged and substantially equidistantly boreholes configured to receive elastic bolts for connection to a corresponding torque support on the supporting structural element of the wind turbine.