HIGH SPEED AND ECONOMIC SHIP USING THE EFFECT OF DOUBLE CAVITATION

摘要

The invention relates to a high speed and economic ship using the effect of double cavitation, which incorporates an integrated installations and equipment system generating complementary hydrodynamic effects favorable to obtaining high speeds with low energy consumption. According to the invention, the ship has as main specific elements a system for generating the double cavitation effect, a buoyancy system, a multi-functional propulsion system, a bow (2) of a special shape, the system for generating the double cavitation effect, placed on the bottom of a ship body (1) comprising several identical systems, each consisting of a hydro-turbine (4) incorporated in a deviation cone (5) with variable geometry and a jet divider (6) extended with an immersed body (7), the buoyancy system comprising some fixed hollow shaped buoyant surfaces (8), placed on the bottom of the ship body (1) between the immersed bodies (7), the multifunctional propulsion system comprising a rotary thruster (9) in the bow (2) wherein it also plays the role of reducing the drag, as well as the role of bow transverse thruster and bow secondary rudder, several fixed thrusters incorporated in the cones (5) of variable geometry which also play the role of generating the double cavitation effect, the rotary thrusters (10), the stern which also plays the role of main rudder, of stern transverse thrusters and of removing the suction effect, and also the fixed stern thruster (11) placed on the ship central axis, and the bow (2) comprising a pointed bow nose placed between two central immersed bodies (7) having some slightly inclined curved surfaces provided on the lateral sides, which allow both the catching of the water of the ship bow (2) at an incidence angle favorable to achieving a high buoyancy and also the obtaining of a low and gentle pitching in a rough sea.