公开(公告)号：US20250091709A1

公开(公告)日：2025-03-20

申请号：US18726917

申请日：2023-01-30

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yuki MITSUTSUJI ,  Wataru HASEGAWA ,  Noriyuki HIRANO

IPC: B64C11/22 ,  B64C27/473 ,  F01D5/14 ,  F03D1/06

Abstract: An object of the present invention is to provide a rotor blade which is excellent in lightweight, stiffness, fatigue characteristics, and dimensional accuracy, and especially excellent in fatigue characteristics, that is, durability, and a main object of the present invention is to provide a rotor blade including at least: a component [A] described below constituting a skin which is a surface layer of the rotor blade; and a component [B] described below constituting a core which is an interior of the skin, wherein the component [B] is enclosed in the component [A] at least in a cross-section taken at the center of the distance between a central axis at the time of rotation and a tip of the rotor blade: Component [A]: a continuous fiber base material including continuous reinforcing fibers and a matrix resin; Component [B]: a porous body including reinforcing fibers and a resin, the reinforcing fiber having a mass mean fiber length of 1 mm or more and 15 mm or less and forming voids by bonding through the resin.