Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Peter Rogall0
Patrick Achenbach0
Date of Patent
April 7, 2009
0Patent Application Number
112507480
Date Filed
October 14, 2005
0Patent Primary Examiner
Patent abstract
A pitch drive system for a wind turbine is provided which comprises a regulation drive for regulating the pitch of a rotor blade of the wind turbine during normal operation, the regulation drive comprising at least one drive train, and an emergency drive for pitching the rotor blade in case of emergency, the emergency drive comprising at least one drive train, wherein the at least one drive train of the emergency drive is separate from the at least one drive train of the regulation drive.
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