FIELD: engines.
SUBSTANCE: invention relates to dampers for gas turbine engines impellers vibrations damping, namely, to impellers vibrations damping devices. Blisk type gas turbine engine impellers vibration damping device represents resilient ring, tightly fit on blisk rim inner surface. Vibrations damping device is installed on blisk rim cylindrical or conical surface and equipped with locking connection and rest. Between locking connection and rest there is gap, wherein locking connection is made with possibility of expansion in radial direction under action of centrifugal forces until gap value decreasing to zero.
EFFECT: invention allows to decrease contact pressure inequality and increase oscillations damping efficiency due to excluding possibility of damper "jamming" at rotor rotation high speeds.
3 cl, 3 dwg
