TORSION SPRING AND METHOD OF MAKING TORSION SPRING Russian patent published in 2019 - IPC F16F1/366 B29C70/30 

FIELD: machine building.

SUBSTANCE: group of inventions relates to the field of machine building. Torsion core or helical spring is made of spring wire from fibrous composite material. Torsion spring comprises reinforcement layers impregnated with matrix material. Each layer contains fibers loaded only by stretching or compression. Rigidity of material of groups of layers with identical direction of load is different. Method discloses stages of torsion spring production as rod spring or helical spring from multilayer fibrous composite material.

EFFECT: higher spring power output.

19 cl, 8 dwg, 6 tbl