FIELD: ballistic systems.
SUBSTANCE: invention relates to ballistic high-speed throwing systems. For self-ignition of the vapour-gas mixture when firing a shot from a ballistic unit, the pressure of the propellant gas is created in the volume behind the projectile in the expansion chamber and the high-pressure chamber in which the piston with the projectile fixed in it is located. Before firing a shot, the ballistic unit is filled with fuel in a liquid aggregate state. Oxidizer is pumped in a gaseous aggregate state under high pressure into a high-pressure tank. To fire a shot under the influence of the energy of the oxidizer generated by its high pressure, fuel is forced into the high-pressure chamber and the expansion chamber. By further increasing fuel pressure in the high-pressure chamber, the walls of the piston and the bottom of the projectile are affected. The piston is moved with the possibility of supplying oxidizer to the high-pressure chamber, with the possibility of mixing oxidizer and fuel. The pressure of the mixture of oxidizer and fuel acting on the walls of the piston and the bottom of the projectile further moves the piston and increases the volume of the high-pressure chamber and expansion chamber with a decrease in pressure in it, with the formation of bubbles in the mixture of fuel and oxidizer as a result of a decrease in pressure and diffusion of the oxidizer inward bubbles through the walls of the bubbles, thus forming a vapour-gas mixture and a sharp increase in pressure in the slug volume, with the collapse of the formed bubbles as a result of a sharp increase in pressure, with an increase in temperature and pressure inside the bubbles during their collapse, and self-ignition of the vapour-gas mixture of fuel and oxidizer as a result influence on the vapour-gas mixture of gases heated during compression in this way. It is possible to use fuel with the presence of solid particles in it, increasing the number of cavitation bubbles formed when the pressure decreases on the surface of these suspended particles, with the appearance of shock waves radially converging towards the center of the bubbles in the final high-speed stage of compression of the bubbles in the liquid, with the formation of hot nuclei with high values of temperature, pressure and density and self-ignition of the vapour-gas mixture.
EFFECT: improved efficiency.
1 cl, 11 dwg
