CARRIER MEMBER FLANGE AND METHOD OF ITS MANUFACTURING Russian patent published in 2019 - IPC F03D1/06 F03D80/30 B29C70/34 B29C70/88 

FIELD: technological processes.

SUBSTANCE: invention relates to flange of side member for rotor blade of wind-driven power plant and to method of making flange of spar. Spar member (200) for rotor blade (108) of wind-driven power plant (100) has lengthwise extension (L) from first end (210) to second end (220), transverse length (Q) extending at right angle to lengthwise length L, and thickness D passing at right angle to longitudinal length (L) and to transverse extent (Q), at least two formations of first composite material (300), and at least one layer of second composite material (400). First composite material comprises matrix material and/or fibers other than second composite material. Second composite material at the section adjacent to second end (220) in the thickness direction is located between the at least two first composite material strata. At least one formation of second composite material (400) ends before second end (220). Fibers of the second composite material contain carbon fibers, and fibers of the first composite material contain inorganic fibers.

EFFECT: invention is aimed at increasing rotor blade stiffness.

15 cl, 7 dwg