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    • 4. 发明申请
    • CARTRIDGE AMMUNITION
    • 卡蒂亚·安曼
    • WO2017033073A1
    • 2017-03-02
    • PCT/IB2016/054511
    • 2016-07-28
    • ATLANTIS SPECIALIST TECHNOLOGIES PROPRIETARY LIMITED
    • DUMONT, Terence Paul
    • F42B5/02F42B5/067F42B33/00
    • F42B5/02F42B5/067F42B33/005
    • Cartridge ammunition 10 includes a projectile 12 and a cartridge 14. The cartridge has a high pressure chamber 28 housing a propellant charge and a low pressure chamber 30 surrounding the chamber 28. The projectile has a projectile body 36 which is sealingly located within the front end of the cartridge case. The projectile body defines an annular recess 45 near the rear end thereof into which the cartridge case 47 is crimped. A gas-tight O-ring seal 44 is provided at a rear end 40 of the projectile. The projectile defines a circumferential skirt 48 projecting rearwardly from the rear end of the projectile body and includes a further gas-tight O-ring sea! 46 extending circumferentially around the skirt. The circumferential skirt and the O-ring seals provide for gas pressure attenuation within the cartridge when the ammunition is fired as the O- ring seals clear the cartridge case only after peak pressure within the cartridge has begun to dissipate.
    • 药筒弹药10包括弹丸12和药筒14.药筒具有容纳推进剂装料的高压腔28和围绕腔室28的低压腔30.射弹具有射出体36,其密封地位于前端 的盒体。 射弹体在其后端附近限定一个环形凹槽45,盒壳47被压接到该环形凹部45中。 在弹丸的后端40处设置气密O形圈密封件44。 射弹定义了从射弹体的后端向后突出的圆周裙部48,并且包括另外的气密O形环海! 46围绕裙部周向延伸。 当弹药被点燃时,周向裙部和O形圈密封件提供药筒内的气体压力衰减,因为O型圈仅在药筒内的峰值压力开始消散之后才能清除药筒外壳。