FIELD: shipbuilding.
SUBSTANCE: invention relates to shipbuilding and can be used in designing ships using a dynamic air cushion. Disclosed is a device for reducing hydrodynamic resistance of a ship hull on a compressed airflow, comprising a high-pressure air pump in the form of an impeller with a nozzle, which pumps air into closed section, from which a portion of compressed air enters a closed pneumatic duct, closed space of which passes further into open channel of bottom, limited in continuation by lateral skegs, at that, in the nose part of the body bottom on its lower surface there is an elastic toroidal shell-cylinder made of extensible material with several rows of profiled holes forming a system of air nozzles directed to the water bearing surface and to the side under the bottom, wherein in cavity of shell-cylinder via gas-air tube with control valve another part of compressed air supplied by impeller arrives, in front of shell-cylinder is hingedly fixed on axis mounted on outer surface of housing bottom, with possibility of conjugation with torus-shaped surface of inflatable shell-cylinder, plate of elastic high-density polyethylene material, which inner surface is spherical and covered with foam plastic, specific weight is less than specific weight of water, note here that said plate can be deflected by means of rope and pulley mechanism and inflatable shell-cylinder filled with compressed air. Note here that drive braking flap is secured under pneumatic duct bottom on the stern side. Driving braking tenon is secured at the end of said channel.
EFFECT: technical result consists in improvement of ship operational performance on compressed airflow.
3 cl, 3 dwg
