JET PROJECTILE WITH SEPARATED ENGINE Russian patent published in 1999 - IPC

FIELD: rocket armament. SUBSTANCE: jet projectile with separated engine has a sustainer stage with a fairing and an engine made of composite material with a threaded bush in the front vent and joined to it by means of the separation mechanism. The engine frame has a cylindrical shape with a tapered-ogival section. The bush outer surface has a ring stop and a trailing-edge rib, and the inner surface has a longitudinal groove. The outer surface of the trailing-edge rib is equidistant to the tapered-ogival section of the engine. The bush accommodates a thin- walled metal cup resting with the ring stop, reinforced from the outside by heat-insulating material, its bottom carries an ignition device, a pin aligned with the bush groove is installed on the outer surface. The rear section of the sustainer stage is positioned in the cup and partially sunk in the engine. A diametric broadening passing into the change inner channel is made in the powder charge by the cup length. The cup is secured on the bush by a union nut closed from the outside by a heat-resistant plastic cone conjugating the engine ogival section with the fairing by its outer surface. A gap is formed between the ring support and nut. A trapeziform ring groove is made inside the cup front section, and a radial groove-on the end face. EFFECT: reliable connection of different- caliber stages of jet projectile at simultaneous improvement of its longitudinal stability due to reduction of the overall length. 2 dwg