HIGH-EXPLOSIVE FRAGMENTATION WARHEAD Russian patent published in 2022 - IPC F42B12/00 F42B12/24 

FIELD: weapons.

SUBSTANCE: invention relates to fragmentation ammunition and can be used to make fragmentation warheads of various calibre, such as artillery shells, missile warheads, hand and rifle grenades, mines, etc. High-explosive fragmentation warhead (HEFW) is made in the form of a set of steel inner rings of rectangular cross-section, which have on the inner surface riffles, which are formed by grooves parallel to the axis of the said ring. Explosive substance is placed inside a set of rings assembled along the height. HEFW additionally contains a set of steel outer rings of rectangular cross-section, which are coaxially installed on the outer surface of the inner rings with gap of 0.05–1.25 mm. Rings are made with heterogeneous structure. Density and hardness of outer rings is greater than density and hardness of inner rings. Height of rings is not less than their thickness. Outer rings contain grooves on inner surface, which are formed with grooves commensurable with grooves of inner rings, parallel to axis of outer rings, and thickness of outer rings is commensurable with thickness of inner rings. Tubular housing accommodating explosive is installed in the set of inner rings assembled along the height. Set is installed on the tubular body with gap of 0.05–1.25 mm. Tubular housing on outer surface is made with annular grooves and longitudinal grooves of comparable profile and depth with grooves on inner rings, which form fragments comparable with riffles on rings.

EFFECT: increased field density of the formed fragments and their speed, increased dispersion range.

7 cl, 1 dwg