发明名称 AUTOMATIC GUN
摘要 FIELD: weapons and ammunition. ^ SUBSTANCE: proposed automatic gun comprises gas extraction assembly, barrel, breech frame, gas extraction unit, gas extraction tube and breech frame with breech block. Said gas extraction tube features variable cross section and ratio between diametres of front and rear parts making at least 3:1. Gas chamber accommodates vertically travelling valve with two pistons, area of top piston making at least that of bottom piston. Breech frame front edge has a hook with two ledges, one in contact with the valve in its top position to lock breech frame recoil and another in contact with the ledge made on the valve top surface to move said valve to its top position from its bottom position. ^ EFFECT: higher reliability of operation of automatic devices, higher accuracy of hits. ^ 1 dwg
申请公布号 RU2395779(C2) 申请公布日期 2010.07.27
申请号 RU20080112359 申请日期 2008.04.02
申请人 BORISOV PETR ANATOL'EVICH 发明人 BORISOV PETR ANATOL'EVICH
分类号 F41A5/22;F41C7/00 主分类号 F41A5/22
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