FIELD: engines and pumps.
SUBSTANCE: combined charge of solid propellant rocket engine with flame arresting effect of effluent jet of combustion products includes solid-propellant grain and grain of flame arresting compound, which is installed near one of edges of solid-propellant grain. As per the other version, charge of solid propellant rocket engine is made in the form of multi-grain charge including several grains of flame arresting compound, which are equally located along the perimetre. In each of the versions the fire arch of grain of flame arresting compound and its weight are made considering the ratios determined by this invention.
EFFECT: invention allows improving reliability and safety of solid propellant rocket engine.
6 cl, 2 dwg
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