CARTRIDGE PRESSURE ACCUMULATOR Russian patent published in 2003 - IPC

FIELD: rocketry. SUBSTANCE: proposed cartridge pressure accumulator of pneumatic expulsion system contains housing with units for fastening it on outer support, igniter, nozzle, insert monoblock cylindrical solid-propellant charge with inner channels parallel to longitudinal axis of charge and bottom support with elastic shock absorber and nozzle diaphragm. Charge of solid propellant is restricted over entire outer surface. Cylindrical casing with channels to let gases from bottom free space pass into pre-nozzle space is installed close to side surface of charge. Divider with blind bottom and holes uniformly spaced over side walls of divider is installed after nozzle. Plate deflector is secured on blind bottom to form flowing of combustion products at some angle relative to longitudinal axis of cartridge pressure accumulator to provide minimum forces acting onto fastening units in process of operation of cartridge pressure accumulator. Invention prevents destruction of charge in cartridge pressure accumulator, brings to minimum spread in combustion characteristics of cartridge pressure accumulator and forces acting onto fastening units of cartridge pressure accumulator. EFFECT: improved reliability in operation. 1 dwg