Patent ID: 6872049

Claim:
A wind turbine with a rotor ( 1 ), a nacelle ( 2 ) and a tower ( 3 ), and where the nacelle comprises a planetary gear ( 4 ) with a planetary holder ( 5 ), on which the hub ( 6 ) of the rotor is rigidly connected, said planetary holder being connected or connectable to the shaft of an electric generator, and where the planetary gear ( 4 ) comprises a ring gear ( 7 ) fixedly mounted on an engine frame ( 9 ) in the nacelle or on a member ( 8 ) rigidly connected to said frame, and where the planetary wheels ( 14 ) of the planetary gear can run around a centrally arranged sun wheel ( 14 ), said planetary wheels engaging said sun wheel ( 14 ) which is optionally connected to a parallel gear ( 30 ), characterised in that the planetary holder ( 5 ) is rotatably mounted in the ring gear ( 7 ) by means of at least two sets ( 17 ) of planetary twin wheels ( 17 a, 17 b ), whereby each set of planetary twin wheels is rotatably mounted on a bogie shaft ( 19 ) on the planetary holder, and that said planetary holder ( 5 ) is rotatably arranged on the curved outer side ( 7 b ) of the ring gear ( 7 ) by means of an outer radial-axial-roller bearing ( 28 ) and through an axially rearwardly directed collar ( 23 ) projecting radially beyond said ring gear.