FIELD: machine building.
SUBSTANCE: invention relates to the field of anti-vibration devices of gas turbine engines with cooled working vanes. Damping device for vibrations of the rotor of a gas turbine engine is made in the form of dampers having cooling grooves on the side of the blades, the air inlet in which is placed opposite the holes in the blade legs, and the output is in the gap between the shelves of the adjacent blade profiles. As dampers are used deflectors made of a material with shape memory effect. On the surface facing the blades, the deflectors are equipped with a pin matrix with a height of the pins corresponding to the depth of the cooling grooves, and the end surfaces of the pins are covered with a wear-resistant material. Titanium nickelide is used as the deflector material.
EFFECT: invention makes it possible to increase the reliability of the impeller of a gas turbine engine by damping the oscillations and increasing the convective heat removal in the cooling areas of the tail blades of the blades.
1 cl, 3 dwg
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