FIXED ROUND Russian patent published in 1995 - IPC

FIELD: artillery equipment. SUBSTANCE: fixed round uses shell 7 with tail 18 located in mouth 19 of chamber 10 with perforation 11. Electric primer 9 with flexible member 21 secured on its end is located in tail 18. Perforation 11 is positioned on the external surface of tail 18 behind flexible member 21 of annular shoulder 24. Separating diaphragm 13 made of combustible material is installed in chamber 10 of annular shoulder 12. Location of igniter 17 between separating diaphragm 13 and electric primer 9 enhances the round reliability and stability of characteristics due to reliable ignition of igniter 17 and possibility of regulation of pressure in chamber 10. Provision of retarding pyrocompound 15 in electric primer 9 makes it possible to enhance the shell reliability due to time delay from the instant of actuation of electronic units 8 of shell 7 and electric primer 9 connected to power source 6 to the instant of ignition of igniter 17, which initiates throwing charge 16 in case 1. EFFECT: enhanced reliability. 1 dwg