HYDROPNEUMATIC GUN Russian patent published in 2001 - IPC

FIELD: armory, in particular, hydropneumatic guns for underwater shooting. SUBSTANCE: the hydropneumatic gun has a barrel, harpoon placed in the barrel, working cylinder aligned with the barrel with a ring piston dividing the working cylinder into the pneumatic and afterpiston hydraulic spaces, trigger piston with a throttling channel connecting the afterpiston hydraulic space to the trigger space and forming a stop valve with the barrel end, which separates the barrel space from the afterpiston hydraulic space, a plunger installed in the hole in the wall of the trigger space connected with the environment and with the trigger. The trigger piston is provided with a channel connecting the barrel space to the trigger space. A relief valve is installed between the channel and the trigger space, the plunger is coupled to the trigger piston and the relief valve for subsequent action. EFFECT: enhanced range, accuracy of fire, striking power. 3 cl, 1 dwg