FIELD: engines.
SUBSTANCE: invention relates to propulsion engineering, namely, to turbomachines working blades vibrations damping devices, and intended to ensure turbine machines reliability. Turbine machine impeller comprises disc with rotor blades installed in its slots, each of which has path flanges and root, in which there is a slot, damper installed at path flanges of each pair of blades with possibility of contact with flanges and made of two parts contacting with each other. Each damper part is made in form of complex profile vertical developed bracket, wherein one of bracket free ends is friction element installed with radial clearance to flange inner surface, bracket central part is made in form of resilient element, having straight and curved surfaces, wherein its middle part bent is along radius providing partial compensation of centrifugal load acting on damper, and second free end is locking element installed with possibility of contact with slot surface made in blade root. At that, damper parts are arranged with possibility to contact with each other through resilient element straight surfaces.
EFFECT: technical result, achieved with implementation of invention consists in expansion of turbomachine operating modes range, on which high efficiency of impeller blades vibrations damping is maintained.
1 cl, 3 dwg
