FIELD: rocketry; construction of solid-propellant rocket engines with fastened composite propellant charge, for example in cruising engines of winged missiles of short radius of action.
SUBSTANCE: proposed solid-propellant rocket engine has body with unrestricted end faces; engine is secured to heat-resistant central tube. Heat-resistant central tube is mounted along axis of charge and is fastened with charge channel and is secured to grids located near rear and front heads of body resting on it. Heat-resistant central tube is made from rigid material, from metal for example, covered with heat protective coat or from composite material. Split collar fitted in between outer surface of charge and body is provided with continuous strip in its center part.
EFFECT: enhanced reliability of rocket engine due to reduction of stresses in charge and avoidance of propellant separation into plies; increased total pulse of jet force due to increased mass of propellant.
1 dwg
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