FIELD: mechanical engineering; turbines.
SUBSTANCE: proposed ring seal of turbine designed for fitting in turbine between rotating unit with axle of rotation and turbine housing arranged around said axle of rotation includes great number of wearable seals, great number of ribs and at least one spring. Each wearable seal contains arc-shaped carrying segment of seal and wearable part connected to arc-shaped carrying segment of seal. Wearable part projects relative to carrying segment of seal through 0.5-5 mm. Ribs are arranged on rotation unit opposite to wearable part. Spring is arranged to apply force keeping wearable seal near rotating unit in process of rotation. Other invention of the group relates to rotating mechanism with great number of steps and including rotating unit, fixed unit enclosing said rotating unit, and great number of wearable seals made according to present invention.
EFFECT: improved efficiency of turbine owing to reduction of overflows of working medium.
8 cl, 5 dwg
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