| 摘要 |
FIELD: armament, in particular, recoilless grenade launchers. ^ SUBSTANCE: the engine body is made integral with the barrel, with centering outer ring bands. An annular shoulder is made on the inner side on the boundary of separation of the engine body and barrel. The pre-combustion chamber is made in the form of a thin-walled metal tube with an inner annular stop on the end face at the annular shoulder and gas conducting openings, and installed in the front bottom of the engine up to the stop against the annular shoulder. The tensioner is centered by a perforated diaphragm in the unconfined space of the grenade rear section and installed inside the pre-combustion chamber on the annular stop of the thin-walled tube. The tensioner represents a screw with a cylindrical head, on which gas conducting grooves are made in the same plane with the gas conducting openings. An additional powder charge is covered with a lattice. An adapter in the form of a short tube with a blind bottom that divides the adapter into two planes - one with a perforated surface and the other - with throttle openings and an initiator is installed between the pre-combustion chamber and the engine nozzle block, the igniter is fastened around them on the outer side. ^ EFFECT: enhanced reliability of operation of the grenade launcher. ^ 4 dwg |
