公开(公告)号：US10330074B2

公开(公告)日：2019-06-25

申请号：US15114469

申请日：2015-01-30

Applicant: LM WP PATENT HOLDING A/S

Inventor： Jeppe Bjorn Jorgensen ,  Casper Kildegaard ,  Klavs Jespersen

IPC: F03D1/06 ,  B29C70/08 ,  B29C70/30 ,  B29D99/00 ,  B29K31/00 ,  B29K63/00 ,  B29L31/08 ,  B29K309/08

Abstract: A wind turbine blade having a transition between two reinforcement fiber types is described. A gradual transition is provided by a combined double-tapered thickness section with a first type of reinforcement fibers sandwiched between a second type of reinforcement fibers or vice versa. The double-tapering is provided during layup and the reinforcement material is impregnated with a polymer resin and then cured or hardened so that the two types of reinforcement fibers are embedded in a common polymer matrix.