MUZZLE BRAKE OF BARREL RECOIL OF ARTILLERY PIECE Russian patent published in 2012 - IPC F41A21/36 F41A25/00 

FIELD: weapons and ammunition.

SUBSTANCE: muzzle brake comprises a casing with six bearing rids, a packet of round plates. The casing is made in the form of a strong nozzle with a rounded front part, equipped with inner thread for screwing onto a muzzle part of the barrel and six longitudinal eyes for fixation of bearing rods. Each plate is equipped with a central window, the diametre of which is equal to an arms calibre, and six inbuilt nozzles with holes to put a plate onto bearing rods. Working surfaces of incoming (internal) parts of all plates in the section have an identical angle of inclination relative to a gas flow, equal to 5-7 degrees. Working surfaces of the outgoing (external) parts of the plates have an alternating angle of reverse inclination that varies in the range from 45 to 90 degrees with a pitch of 8-10 degrees. The distance between plates that alternates in the range of 1-3 cm, evenly increasing as it approaches the muzzle section of the brake.

EFFECT: reduced pressure in the shock wave at gun crew places due to fan-shaped emission of powder gases.

1 dwg