초록 ▼

A back-actuated forward ignition cartridge having a case, a puller sabot and rod penetrator projectile in the forward mouth end of the case, and a combination compacted propellant solid mass and loose propellant charge ignitable by back ignition through actuation of a rear primer and guided flame pr

A back-actuated forward ignition cartridge having a case, a puller sabot and rod penetrator projectile in the forward mouth end of the case, and a combination compacted propellant solid mass and loose propellant charge ignitable by back ignition through actuation of a rear primer and guided flame propagation through a guide tube extending through the compacted propellant mass and to the vicinity of the loose propellant charge, while preventing ignition of the compacted propellant mass as the flame passes along the tube therethrough. The guide tube has a booster ignition charge therein to assist in forward flame propagation and ignition of the loose propellant. Burning of the loose propellant charge effects pressurized constriction of the sabot about the projectile and drives the sabot/projectile from the case and along a barrel bore, thereby increasing the effective burning volume prior to ignition of the compacted propellant solid mass. The burning of the loose propellant also effects ignition of the compacted propellant solid mass, the burning of which impacts a large further thrust to the projectile of greater amount than would be effected by employment of a solely loose propellant charge of material comparable to the employed propellant or propellants.

대표청구항 ▼

A back-actuated forward ignition cartridge comprising a cartridge case having an open forward end, a fin-stabilized projectile having stabilizing fins on its rear end, a puller sabot secured in said forward end of said case and carrying said projectile, said puller sabot having a tapered rear end, a

A back-actuated forward ignition cartridge comprising a cartridge case having an open forward end, a fin-stabilized projectile having stabilizing fins on its rear end, a puller sabot secured in said forward end of said case and carrying said projectile, said puller sabot having a tapered rear end, and said stabilizing fins being disposed rearwardly of said sabot, a compacted propellant formed as a solid mass disposed in the rear section of said case, rearward of said projectile, loose propellant disposed about said tapered rear end of said puller sabot and said projectile fins and disposed forward of said compacted propellant solid mass, primer means disposed in the rear end of said case, and flame-guiding means connecting between said primer means and the forward section of said case and extending through said compacted propellant mass to enable ignition flame propagation from said primer means to the vicinity of said loose propellant to thereby enable primer-initiated ignition of said loose propellant prior to ignition of said compacted propellant.