Gas jet nozzle tube for breech operation and ammunition transport of an automatic barrel weapon

摘要

1. Gas jet pipe nozzle (3) for a breech drive and ammunition transport system of an automatic barrel weapon and situated inside a cylindrical boring 8 parallel to the barrel axis (28) of a barrel ring (9) and containing an internal boring (1) which extends in an axially parallel direction and which is connected to a gas extraction boring (2) provided obliquely in the barrel (10) from the exterior and extending into the interior space (29) of the barrel characterized by the following features : a) the pipe nozzle (3) is provided, in the zone of the cylindrical casing (5), with a connecting pipe (4) which extends obliquely from the gas extraction boring (2) to the inner boring (1) while the interface (20) formed from the inlet aperture (18) to the inner boring (1) has a greater diameter (d1 ) than the diameter (d3 ) of the inner boring (1), the interface (20) also being the deviating point for the gaz jet being capable of deviation, at an angle of inclination (alpha) of below 90 degrees, in accordance with the inclination of the connecting pipe (4) with respect to the inner boring (1) ; b) the nozzle (3) has securing means (6) serving to fix the position of the connecting pipe (4) in the peripheral direction (7) ; c) the nozzle (3) also bears resilient safety element (11) which, in the safe position, is engaged in a groove (12) of the barrel (10) of the weapon and prevents the nozzle (3) from falling out of the boring (8).