WATER-JET PROPELLER Russian patent published in 2006 - IPC B63H11/01 B63H11/08 B63H11/11 

FIELD: the invention refers to shipbuilding and applies to construction of water-jet propellers of river boats exploited in conditions of shallow-water rivers and basins with a clogged fairway.

SUBSTANCE: the water-jet propeller has a water canal with a receiving tunnel, a rotor placed in a body and connected with a propeller shaft aligning an apparatus installed in a nozzle and a shaft bearing installed in the aligning apparatus behind the rotor. In the body of the rotor there is behind the rotor one hatch with a cover covering the whole plate of the rotor for assembly and disassembly of the rotor afloat, inspection and cleaning the grate of the water inlet of the tunnel. At that the fore flange of the rotor's body is fulfilled tapered for providing possibility for recovery of that body for its replacement and repair. In the water canal before the body of the rotor a refrigerator of the type " liquid-liquid" is installed. It is designed for cooling an engine putting the rotor into rotation. The shaft bearing may be fulfilled rubber-metal.

EFFECT: such fulfillment of the propeller provides simplicity of manufacturing technology, exploitation and maintenance and also increases effectiveness of its work, decreases labor consumption at carrying prophylactic and repair works, improves exploitation characteristics and increases reliability of work.

1 cl, 1 dwg