Patent ID: 8177515
Filing Date: 2012-05-15
Classification: F03D,F05B,Y02E,Y02P,Y10T

Abstract:
1. A sectional blade for a wind turbine, the blade comprising at least a first blade section and a second blade section extending in opposite directions from a blade joint, where each blade section comprises a spar section forming a structural member of the blade and extending lengthways, the first blade section and the second blade section being structurally connected by a spar bridge extending into said first and second blade sections to facilitate joining of said blade sections, the spar bridge being connected in a spar joint to a spar section thereby forming a receiving spar section, and wherein the spar bridge comprises at least one stiffening member protruding from the spar bridge in a chord wise direction of the blade for increasing the edgewise stiffness of the blade, and wherein at least a part of the surface of the stiffening member is shaped to substantially follow an inner surface contour of the blade.