FIELD: machine building.
SUBSTANCE: invention relates to gas turbine engine blade workpiece, as well as to single-piece blade, which can be made by means of such workpiece, to blade wheel and to gas turbine engine containing such blade. Gas turbine engine blade includes a main fibrous workpiece obtained by three-dimensional weaving and comprising a first longitudinal section configured to form a blade leg, a second longitudinal portion extending upward a first longitudinal portion and configured to form a blade feather portion, a first lateral portion extending transversely from the connection between the first and second longitudinal portions and configured to form a first flange, wherein the workpiece additionally comprises at least one stiffness element attached to the main fibrous workpiece along at least one segment of the distal edge of the first transverse portion.
EFFECT: invention provides mechanical strength of blades.
13 cl, 13 dwg
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