NOZZLE ASSEMBLY Russian patent published in 1997 - IPC

FIELD: rocketry, in particular, nozzle assemblies with a jet projectile flight stabilizing device, can find a jet projectile flight stabilizing device, can find a wide application in development of new prototype jet projectiles, mainly rocket projectiles. SUBSTANCE: the known nozzle assembly has the nose and tail cones located in the free space bent fins with locking surfaces, torsion - compression springs, axles and a fairing. Each blade of the fins, in the root section, is furnished with local bosses with locking surfaces, and the tail cone of the nozzle assembly is furnished with bosses with mating locking surfaces; the locking surfaces of the bosses, for instance the tail ones, are parallel to the assembly longitudinal axis, and the nose surfaces are positioned at an angle to the assembly longitudinal axis; in the folded position the blades are located with a partial overlapping of each other, and the concave surface of each blade is made in a radius, whose center lies on intersection of the perpendiculars constructed from the center of two straight lines connecting in pairs the reference points of this surface in the cross-section of the blade in the folded position, and the fairing is made in the form of several plates bent in an arc of circumference, secured between the blades. EFFECT: improved design. 3 dwg