ROUND Russian patent published in 1997 - IPC

FIELD: defence equipment, in particular, rounds with shells fired from gun barrel by means of a propellant charge. SUBSTANCE: the round uses a propellant charge, shell, jettisonable tray in the form of a sleeve installed on the shell tail assembly, tray jettison gear in the form of an accumulation chamber located in the tray and communicating with the aftshell space through a valve with a calibrated section. The tray external surface has a recess for the valve, and the beginning of the valve inlet ports is made on the external cylindrical surface of the head. The valve is installed in the tray recess with an annular gap between the recess internal surface and the external cylindrical surface of the head with projection of the head behind the tray external surface. The beginning of the valve inlet ports is located inside the annular gap, and the inlet ports may be made in the form of slots, whose larger side is positioned tangentially to the cylindrical lateral external surface of the valve head; the valve proper is made up of two parts fastened to each other; the plane of the parts joint passes through the tangential slots of the inlet ports on one of their larger internal surfaces; the tangential slots have a square section. EFFECT: improved design. 3 cl, 3 dwg