FIELD: general-purpose systems with transfer of fluid medium, mainly of gases, by changing its pressure and subsequent transformation into kinetic energy of the projectile.
SUBSTANCE: the device has a body with two cavities, in particular, a cartridge case, barrel and a launching tube. The spaces are separated by a partition with through holes. Positioned in the first space is the source of fluid medium, mainly propellant powder charge that is connected with the device of its ignition. The projectile is installed in the body for movement in the longitudinal axis in the direction from the partition under the action of the fluid medium. In the second space provision is made for an additional transverse partition separating it into two parts with one or more longitudinally oriented through channels, whose diameter is not less than 4 times lower than their length and exceeds the diameter of the holes in the first partition.
EFFECT: improved technical characteristics of the device due to the increase of the dynamic effect of the fluid medium on the projectile and reduced static effect on the other body surfaces limiting, along with the projectile, the second space, and prevented penetration of still not burnt particles of the source of fluid medium into the channel and/or shut-off of them at the inlet.
10 cl, 8 dwg
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