FIELD: weapons.
SUBSTANCE: cooled machine-gun barrel in the form of a tube with external chamber, besides the chamber and its muzzle part, with external transverse annular grooves divided by transverse annular ribs with one or several slots. In the middle part of the shaft there are longitudinal grooves separated by ribs. From above the shaft is covered with a casing, sealed at muzzle and breech parts of the shaft. Between inner surface of casing and longitudinal ribs there is a gap. Slots in transverse ribs and clearance between casing and lengthwise ribs serve for coolant passage.
EFFECT: technical result is higher efficiency of cooling breech end, eliminating overheating, increasing time of continuous firing and survivability of machine gun barrel.
1 cl, 1 dwg
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Authors
Dates
2020-09-14—Published
2020-04-17—Filed