WATER-JET Russian patent published in 2013 - IPC B63H11/00 

FIELD: transport.

SUBSTANCE: invention relates to water-jet propulsors. Proposed device comprises water-jet propulsor with axial pump. Said propulsor comprises the motor with stator driving the water-jet propulsor rotor. Rotor is aligned with stator and fitted therein with clearance. Propeller blades are fitted at rotor inner surface. Counter propellers, suction chamber pipe and pressure chamber nozzle are arranged on central shaft. Steam feed pipe is fitted into aforesaid clearance. Steam turbine working blades are mounted in said clearance on rotor outer surface. Steam turbine straightener blades are arranged on stator inner surface in said clearance to alternate with working blades. Central shaft represents a composite element. Shaft central part runs in bearings fitted in hubs. Said hubs are arranged on counter propellers supporting suction chamber pipe, pressure chamber nozzle and stator. Centrifugal pump vanes are arranged on rotor front end. Separation washer is fitted in aforesaid clearance. Outlets are made in stator.

EFFECT: expanded operating performances owing to blade rpm control.

1 dwg