ENGINE FOR SHELLS OF RECOILLESS GUNS Russian patent published in 2004 - IPC

FIELD: gunnery, applicable for designing of shells for recoilless guns. SUBSTANCE: the engine has a body, propelling charge, useful load and electric primers. The propelling charge is positioned in stages separated by partitions, each stage consists of combustion chambers separated by partitions, with propelling charges and electric primers located in them. The combustion chambers are connected by an electric circuit. The last of the combustion chambers serves as a locking device. The quantity of the stages may make up two and more. The stages may be made for their successive switching. EFFECT: enhanced velocity and range of shell flight. 4 cl, 2 dwg