公开(公告)号：US10451030B2

公开(公告)日：2019-10-22

申请号：US15166340

申请日：2016-05-27

Applicant: Blade Dynamics Limited

Inventor： Paul Trevor Hayden ,  Andrea Giuseppe Avaldi

IPC: F03D1/06 ,  B29C70/00 ,  B29C65/50 ,  B29C65/00 ,  B29L31/08

Abstract: A wind turbine blade comprising first and second adjacent blade sections arranged end to end along the length of the blade. Each section comprises an aerodynamic fairing and a spar. Each spar comprises a shear web extending across the fairing and a pair of spar caps, one at either end of the shear web. Each spar cap in the first section has a different cross-sectional shape and/or material from the respective spar cap in the second section and wherein the spar cap in the first section is joined to the respective spar cap in the second section via a connection piece. Each connection piece is a pre-cured component extending along the length of the blade from a first inclined end configured to connect to a first complimentary inclined end of a spar cap of the first blade section and a second inclined end.