PROTECTIVE LINING OF COMPOSITE BLADE OF TURBINE ENGINE Russian patent published in 2017 - IPC F01D5/14 F01D5/28 F04D29/38 

FIELD: engine devices and pumps.

SUBSTANCE: protective lining has a base changing into two widening wings and arranged for forming, at least one receiving space of protective cover extending in longitudinal direction of said base. An assembly of a plurality of bundles of fibres is mounted in at least one receiving space of said base of the protective cover, determining the number of fibres which varies over the entire height of said receiving space. The assembly a plurality of bundles of fibres includes at least two concentric bundles of fibres, a cylindrical bundle having a first length, as well as a tubular bundle overlapping a portion of the first bundle of fibres.

EFFECT: density of the reinforcement can be easily and quickly adapted to its shape, higher density closer to blade tip, and lower density closer to the blade root.

11 cl, 4 dwg