FIELD: engines and pumps.
SUBSTANCE: proposed turbopump unit comprises oxidiser pump, turbine running on gas fuel, turbine bearing, system of seals separating said oxidiser pump from said turbine. Gas drainage between the system of seals and turbine, seal being fitted on turbine side Turbine bearing is arranged in chamber between said seal and turbine cavity.
EFFECT: decreased losses of separating gas in drainage, better dynamics of rotor.
4 cl, 4 dwg
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