FIELD: fans.
SUBSTANCE: blade (20) of fan includes: main part (21) of the airfoil, consisting of composite material from thermoplastic resin or thermosetting resin and reinforcing fibers; protective shell (22) made of metal, which covers at least part of part (LE) of leading edge of main part of airfoil; and shield (23) made of metal, which covers at least part of part (TE) of rear edge of main part of airfoil, wherein the back extreme part of the protective shell and the front extreme part of the shield overlap in the direction of thickness of the main part of the airfoil on each plane of the trough (SP) and back (SS) of the main part of the airfoil and shield front end is inserted between rear extreme part of protective shell and main part of airfoil on overlapping section (OL1, OL2).
EFFECT: fan blade is made, which is made of composite material and is not damaged even in case when large foreign object collides with fan blade.
5 cl, 8 dwg
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