FIELD: engines and pumps.
SUBSTANCE: centrifugal turbine comprises a housing, am impeller disk of a centrifugal turbine with a blade ring and a band, a nozzle cascade, according to the invention, a counter-protrusion 5 is formed on the impeller disk of the centrifugal turbine 3 on the opposite side of the blade ring 6, forming a labyrinth seal 11 with the housing of the turbine 1 and equal in weight to the blade ring with the bandage.
EFFECT: simplified design, reduced weight of the turbo-pump unit, increased reliability for long-term operation of turbo-pump units at high rotational speeds and at high temperatures of the working body after the gas generator, eliminated axial force influencing the turbine.
1 dwg
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