TURBO-JET PUMP AND WATER JET ENGINE

Turbo-jet pump-water jet engine is a totally new solution for driving vessels on the water surface and under water, ships and submarines, and setting them to speeds of over 50 m/s (over 185 km/h or over 100 knots). The basic design involves the pump housing ( 1 ), which in its rear section transforms into the Venture's tube ( 16 ). The actuating three phase asynchronous electric motor ( 8, 9, 10, 11 ), using electric current of high voltage and high operating frequencies, is of small overall Dimensions compared to the power achieved, drives the axial pump rotors ( 5, 13 ) and provides for very high flows. A large mass of water accelerated in the Venture's tube provides for high thrust. When we use plane axis-symmetrical blades of elliptical cross-section ( 25 ), the pump can rotate in either direction, so that both ends of the housing are to be equipped with the Venture's tube ( 16 ) for doubleacting jet, which is important with submarines. The variant solutions are when the pump is driven through shafts axially ( 19 ) or radially ( 22 ) placed to the pump shaft axis ( 8 ), and a device within the vessel drives these.