FIELD: shipbuilding.
SUBSTANCE: invention relates to the field of shipbuilding, namely to jet water propulsors, that can be installed on surface or underwater displacement ships, or on universal vessels moving on the water surface, above the water surface and under water. Jet water propulsor includes a water jet propulsion plant, water intake devices, exhaust nozzles, system of ducts-pipelines connecting water intake devices with the water jet propulsion plant and with the exhaust nozzles. For a variant of a high-speed displacement surface or submarine vessel, the exhaust nozzles are located on the wetted surface areas of the ship hull in the form of a two-dimensional array depending on the hydrodynamic resistance of the sections of the ship hull, while the outflow of jets from the exhaust nozzles is directed along the surface of the ship hull or at an acute angle to the surface of the ship hull. For the second version of a high-speed vessel, moving both on the water surface, and above the surface of the water, the exhaust nozzles are located in the form of a two-dimensional array on the bottom of the ship or in the form of a two-dimensional array both on the bottom of the ship and on the sides of the ship. Outflow of jets from the exhaust nozzles is directed along the surface of the ship hull or at an acute angle to the surface of the ship hull, while the exhaust nozzles having a changeable thrust vector. On the body of the submersible water intake device used when the ship moves above the surface of the water, the exhaust nozzles are installed to form an active power flow of liquid along the surface of the streamlined body of the submersible water intake device. For the third version of a high-speed ship moving on the water surface, above the water surface or under water, exhaust nozzles are arranged in the form of a two-dimensional array over the entire surface of the ship, depending on the hydrodynamic resistance of the sections of the ship hull. Exhaust nozzles have a changeable thrust vector. Submersible water intake device used when the ship moves above the water surface, is fixed to the ship hull by means of a transformable system of bar systems. In this case, for the first, second and third versions of the jet water propulsor, nozzles with a flow accelerator of the flowing liquid are mounted on the exhaustnozzles.
EFFECT: minimizing the hydrodynamic drag of a moving ship and, as a consequence, increasing the speed of the ship.
8 cl, 23 dwg
