| 摘要 |
FIELD: rocketry. ^ SUBSTANCE: invention can find application in engines and self-contained on board energy sources-powder pressure accumulators and guides and nonguided ammunitions. Proposed method of ignition of solid-propellant charge includes ignition of ignition composition and additional accompanying charge, transporting of their combustion products along surface of charge, surface and ignition. Combustion products of igniting composition and additional accompanying charge are mixed in high-pressure chamber and are formed into jets moved in spiral along surface of charge. Remaining particles of igniting composition are settled on surface of charge. Proposed method of ignition is implemented in pressure accumulator containing ignition unit, housing with charge of solid propellant and threaded cover accommodating additional accompanying charge. Additional accompanying charge is placed in high-pressure chamber. Said chamber is formed by walls of threaded cover installed at front end face of charge provided with conical projection, and partition. The latter is made in form of hollow truncated cone with blind bottom at smaller base and radial slots on end face pointed to charge larger base. Projection of charge is arranged inside housing forming ring space connected with high-pressure chamber by gas channels made opposite to each other in bottom of cone tangentially to its generatrix. ^ EFFECT: improved reliability of ignition of charge, in particular , end face burning charge of powder pressure accumulator at below-zero temperatures and with limitation as to cleanness of combustion products. ^ 3 cl, 3 dwg |
