FIELD: adjustable-blade reaction turbines for hydroelectric power stations and water-management systems. SUBSTANCE: interior of operating mechanism of adjustable-blade runner is separated from servomotor lubricating system; it is provided with pressure-regulating device and communicates with surrounding medium; sleeve bearings are coated with bronze-fluoroplastic antifriction layer enabling their operation in water and preventing oil leakage into surrounding medium. EFFECT: improved reliability and tightness of turbine. 3 cl, 1 dwg
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