Patent ID: 9109578
Filing Date: 2015-08-18
Classification: F03D,Y02E

Abstract:
1. A root extender for coupling a rotor blade to a hub of a wind turbine, the root extender comprising: a body defining a longitudinal axis between a first end and a second end, the first end defining a first planar surface configured to be positioned adjacent to the hub and the second end defining a second planar surface configured to be positioned adjacent to the rotor blade, the second planar surface being oriented at a cone angle relative to the first planar surface, the longitudinal axis extending between a center of the first planar surface and a center of the second planar surface, wherein the longitudinal axis is oriented at a non-perpendicular angle relative to the first planar surface such that the center of the second planar surface is displaced relative to the center of the first planar surface in a direction perpendicular to a longitudinal axis of a tower of the wind turbine when the body is coupled between the hub and the rotor blade.