RU2613925C1 - Removal of powder gases from gun chamber at gunnery - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: at gunnery recoiling parts roll back and are set up on hold with a breech hook and a hook located on the immovable part of the gun. The hook opens a non-return valve of a mounted cylinder. At roll back atmospheric air extreme pressure is created in the cylinder which is directed through the first non-return valve and the pipe to the chamber via the ball valve. After the pressure is equalized in the trunk with the atmospheric pressure the piston lever transfers and removes the barrel from a hook, the recoiling parts roll forward. At this time the atmospheric air is pumped into the cylinder through the second non-return valve.

EFFECT: powder gases are removed from the artillery chambers without electric energy.

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Description

The invention relates to the field of military equipment, in particular to methods for reducing the gas contamination of inhabited departments by powder gases, the source of which is weapons.

There is a method of removing powder gases from the barrel of an artillery gun when firing shell-loaded charges [1]. The method is carried out by supplying compressed gas to the bottom of the sleeve from a source of compressed gas located in the sleeve. Filing takes place between the moment the projectile leaves the barrel and the moment the shell completely leaves the breech in the process of extraction

A known method and device for removing powder gases from the barrel with a gun 2C19, as well as a receiver device [2]. The receiver serves to purge the bore in order to reduce the ingress of powder gases into the fighting compartment. The internal cavity between the receiver and the monoblock barrel is connected to the barrel channel by eight inclined holes with nozzles and two holes with balls representing the valve device. The nozzles are screwed into the threaded holes of the monoblock barrel. When fired after the projectile passes through the holes, part of the powder gases enters the cavity of the receiver. Gunpowder gases fill the receiver cavity until the pressures in the barrel channel and in the receiver cavity equalize, after which the balls fall into their nests and block the holes, which eliminates the outflow of gases back into the barrel channel.

The disadvantages of this method and the gun installation for its implementation are: increased gas contamination in the fighting compartment when firing guns, since the powder gases in the sleeve during the extraction operations on the receiving tray of the ejection mechanism and lifting to the ejection line have time to fill the fighting compartment; incomplete blowing of the bore as the nozzle holes of the blowing mechanism become dirty; Significant contamination of the receiver as it works.

The objective of the present invention is to remove powder gases during firing from the chamber of an artillery gun, reducing the level of maximum permissible concentration of powder gases that appear when using weapons.

The technical result of the proposed invention is the removal of powder gases from the chamber of the artillery gun, which contains the highest concentration of powder gases without the consumption of electricity, using the energy of the recoil and roll of the gun and reducing the overall gas level of the inhabited compartment.

In this case, the method of removing powder gases from the gun’s chamber during firing is based on the fact that the recoil energy of the gun is used to compress the air mixture from atmospheric air by installing a cylinder with a movable piston in it, the cylinder is rigidly fixed with the rolling parts of the gun (breech), in which overpressure of atmospheric air is forcibly created when the piston moves in the cylinder, then it is sent to the gun chamber through a one-way valve through pipelines. Feature. the method is that the retractable parts to prevent the ingress of powder gases during the extraction of the liner are delayed by means of a breech hook and a hook on the fixed part of the gun, after which, using a valve system, air is supplied under pressure through a ball valve into the chamber from the cylinder with a piston, the outflow of gases through the muzzle of the barrel occurs. After equalizing the pressure through a system of levers, the breech is removed from the delay and moves to the coast, at this time the cylinder is filled with atmospheric air through a second one-way valve.

Thus, to ensure the operation of the method, it is additionally installed: a hook 13 on the breech of the gun, a hook 6 on the fixed part of the gun, cylinder 12, the piston in the cylinder 11, one-way valve 10, pipeline 8, ball valve 5, levers 7, piston 3, levers four.

A method for removing powder gases from a gun during firing, characterized in that when the shot is fired from the gun, the recoiling parts move to the recoil and become delayed by the breech hook and the hook located on the fixed part of the gun, which is connected by a one-way valve of the installed cylinder, while the piston is located in the cylinder, and the rod is mounted on the fixed part of the artillery gun and the cylinder itself is rigidly connected to the retractable parts and has a pipeline, while overpressure is created in the recoil I am the atmospheric air in the cylinder, which is directed through the first one-way valve and the pipeline into the chamber through the ball valve, after the pressure in the barrel is equalized with atmospheric pressure, the lever piston moves, while it removes the barrel from the hook, the sliding parts move forward, while through the second one-way valve, the cylinder is filled with atmospheric air.

The invention is illustrated by the drawing in Fig. 1, which shows a device that ensures the operation of the method of removing powder gases from the gun’s chamber when firing from main weapons, where: 1 - chamber; 2 - trunk; 3 - the piston; 4 - piston lever; 5 - ball valve; 6 - hook (located on the fixed part of the gun); 7 - levers; 8 - pipeline; 9 - valve; 10 - valve; 11 - cylinder piston; 12 - cylinder; 13 - hook (located on the breech of the gun).

The way the work. When making a shot from the gun, the recoiling parts (breech) roll back together with cylinder 12, while the piston of cylinder 11 remains stationary, atmospheric air is compressed in the working cavity of the cylinder. In the extreme position of the rollback using the hook on the breech 12 and the hook 6 located on the fixed part of the gun, the rolling parts stop, while the hook 6 moves the levers 7 and they open the one-way valve 9 and the compressed air is sent to the gun chamber through the pipeline 8 through the ball valve 5 in the gun chamber. The removal of powder gases from the chamber through the muzzle of the barrel. After equalizing the air pressure in the chamber with atmospheric pressure, the piston 3 rises and moves the lever of the piston 4, which acts on the hook 6, is removed from the rolling parts from the hook. The retractable parts move forward, the working cavity of the cylinder 12 is filled with atmospheric air through the valve 10.

The proposed method allows to reduce the level of gas contamination in the gun’s chamber, the general level of the maximum permissible concentration of powder gases in the inhabited compartment and to reduce the likelihood of crew poisoning.

Information sources

1. Patent 5511456 dated 04/04/95, USA, cl. F41H 7/03 - analogue.

2. Product 2C19 technical description and operating instructions, album of drawings 2C19 TO1, Goskomizdat, 1990, p. 81. Open edition. Prototype.

Claims (1)

A method of removing powder gases from the gun’s chamber during firing, characterized in that when the shot is fired from the gun, the recoiling parts move into the kickback and become delayed by the breech hook and the hook located on the fixed part of the gun, which opens the one-way valve of the installed cylinder, it is rigidly connected with the retractable parts and has a pipeline and a fixed piston, while the excess pressure of atmospheric air in the cylinder is created in the recoil, which is sent through the first one the piston lever and the pipeline into the chamber through the ball valve, after equalizing the pressure in the barrel with atmospheric pressure, the piston lever moves, while it removes the barrel from the hook, the sliding parts move forward, at that time, through the second one-way valve, the cylinder is filled with atmospheric air .

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