Patent ID: 8011098
Filing Date: 2011-09-06
Classification: B66C,F03D,F05B,Y02E,Y02P,Y10T

Abstract:
1. A wind turbine erection device for erecting a wind turbine on top of a wind turbine foundation, comprising: a plurality of vertically stackable intermediate modules each of which have three closed perimeter sides and one open side to allow said closed sides to surround within said three closed perimeter sides, wind turbine tower sections; a fixed size stacker unit anchored to said foundation, the stacker unit having a receptacle for lateral sliding of intermediate modules inside of the stacker unit and a hydraulically powered mechanical actuator for raising intermediate modules vertically stacked upon each other so additional modules can be inserted under the previously stacked ones; and a bridge crane section to be attached to the top of a plurality of stacked intermediate modules, the bridge crane allowing a plurality of said tower sections, a housing, a hub, and a plurality of rotor blades to be hoisted vertically, the bridge and the intermediate modules structured for vertically raising the housing and the hub through the intermediate modules.