RU2521852C1 - Reduction of gas content in tank combat compartment - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: proposed method consists in that breech moves in two directions, that is in first direction at back blow and in second direction at counter-recoil. Fixed cylinder is arranged nearby said breech to house movable cylinder rigidly secured via rod with said breech. At fire during gun recoil, breech with piston displaces. Air rarefaction zone is formed inside the cylinder. Air nearby breech saturated with powder gases is sucked via first one-way valve into the cylinder and stays therein up to gun counter-recoil. At counter-recoil, piston displaces in opposite direction in cylinder to displace air therefrom via second one-way valve and pipeline into neutraliser filer. Air with powder gases is removed from combat compartment.

EFFECT: decreased gas content.

1 dwg

Description

The invention relates to the field of military equipment, in particular to methods for reducing the gas contamination of the fighting compartment of a tank by powder gases, the source of which is its armament.

There is a method of reducing the gas contamination of the military compartment of a military tracked vehicle when the removal of powder gases is carried out by an exhaust ventilation system with a fan inside the inhabited compartments (see Technical Description: Airborne Combat Vehicle (BMD-1). Military Publishing House of the USSR Ministry of Defense 1973, p. 390, 392. Open Edition).

In addition, there is a method of reducing the gas contamination of the fighting compartment of the T-72A tank, which consists in the fact that the filter-ventilation unit provides the supply of purified air to the fighting compartment and the control compartment of the machine and creates excessive pressure (back-up) in them, and also ventilates the indicated compartments, thereby reducing gas contamination when firing from a cannon and machine gun (see Technical description and operating instructions for the T-72A tank, book two, part two. Military Publishing House of the USSR Ministry of Defense 1989, p. 118. Open edition. P rototype).

The known method of reducing the gas contamination of the fighting compartment of the tank allows you to create air pressure in the inhabited compartments and partially reduce the overall level of gas contamination by powder gases. However, this method does not allow for full ventilation of the inhabited compartments during intensive firing, to reduce the maximum permissible concentration of carbon monoxide to a safe value, as a result of which crew failure (death) may occur.

The objective of the present invention is to remove powder gases during firing from the breech zone of the tank gun located in the fighting compartment of the tank, a general reduction in 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 area of the breech of the gun, in which the highest concentration of powder gases is located, without the expense of electricity, using the energy of the rollback and rollback of tank weapons, and reducing the overall gas contamination of the fighting compartment.

In this case, the method of reducing the gas contamination of the fighting compartment of the tank is based on the fact that the recoil and roll-off energy of the tank gun is used to remove the powder gases generated in the fighting compartment in the breech zone by installing a fixed cylinder near it with a movable piston in the cylinder, rigidly fixed with recoil parts of the gun (breech), into which the air containing powder gases is forced to flow (suck in) due to the rarefaction of air created in it during the movement of the piston in the cylinder during the rollback udium, then under pressure created during the gun’s rolling, is removed from the cylinder through the pipeline to the filter-neutralizer, providing an additional reduction in the gas contamination of the fighting compartment.

The way to reduce the gas contamination of the fighting compartment of the tank,

including the creation of air back-up by a filter-ventilation unit and the expulsion of air containing carbon monoxide from the inhabited compartments through leaks in the tank body, characterized in that when a shot is fired from a cannon, the breech moves in two directions, in the first during rollback and in the second during rolling, near it there is a fixed cylinder, in which there is a movable piston, rigidly fixed through the rod with the breech, when a shot is fired, during the recoil of the gun, the breech with the piston moves, in the worker of the cylinder cavity, an air rarefaction zone is formed and air near the breech, saturated with powder gases, is sucked through the first one-way valve into the working cavity of the cylinder and is there until the gun is rolled, when rolling, the piston in the cylinder moves in the opposite direction and air is forced out of the cylinder through the second one-way valve through the pipeline to the filter neutralizer, the air containing powder gases is removed in the fighting compartment.

The invention is illustrated in figure 1, which shows a device that provides a method of reducing the gas contamination of the fighting compartment of the tank, where 1 is the fighting compartment; 2 - fixed cylinder; 3 - piston with a rod; 4 - the first one-way valve; 5 - the second one-way valve; 6 - pipeline release of powder gases; 7 - working cavity of the cylinder; 8 - breech (gas source), 9 - filter neutralizer.

When making a shot from a tank gun, the breech (gas source) rolls back with the barrel, moving a rigidly fixed rod with a piston, which is located in a fixed cylinder, fixed near the breech. The working cavity of the cylinder has two one-way valves. In the working cavity of the cylinder during rollback and movement of the piston, a vacuum is formed. At the same time, air containing powder gases near the breech (gas source) is sucked in through the first one-way valve, which does not allow this air to pass in the opposite direction, into the fighting compartment and is in the working cavity of the cylinder before rolling. When rolling, the piston, moving with the breech in the opposite direction, creates pressure in the working cavity of the cylinder. Air is displaced from the working cavity of the cylinder into the pipeline for the release of powder gases and through the second one-way valve located in it, which also prevents the gases from passing back into the working cavity of the cylinder, into the filter neutralizer. There is a removal of powder gases from the breech zone of the gun in the fighting compartment, the overall level of gas contamination of the living compartments is reduced.

An example of the method. When making a shot from a tank gun breech (gas source) 8, rolls back, moving a rigidly fixed piston with it with a rod 3, which is located in a fixed cylinder 2, fixed near the breech (gas source) 8. The working cavity of cylinder 7 has two one-way valve. In the working cavity of the cylinder 7 during the rollback and movement of the piston with the rod 3, a vacuum is formed. Air containing powder gases near the breech (gas source) 8 is sucked in through the first one-way valve 4. When rolling, the piston with the rod 3, moving with the breech (gas source) 8 in the opposite direction, creates pressure in the working cavity of the cylinder 7. Air is displaced from the working cavity of the cylinder 7 into the pipeline for the release of powder gases 6 and through the second one-way valve 5 into the filter-neutralizer 9. The powder gases are removed from the breech zone of the gun and the overall gas contamination of the fighting compartment 1 decreases.

The proposed method allows to reduce the level of gas contamination in the breech zone of tank weapons, the general level of maximum permissible concentration of powder gases in the fighting compartment and reduce the likelihood of failure (death) of the crew.

Literature

1. Technical description landing vehicle (BMD-1). Military Publishing House of the USSR Ministry of Defense 1973, p. 390, 392. Open edition.

2. Technical description and operating instructions for the T-72A tank, book two, part two. Military Publishing House of the Ministry of Defense of the USSR 1989, p.118. Open edition. Prototype.

Claims (1)

A way to reduce the gas contamination of the fighting compartment of the tank, which consists in the fact that when firing a cannon the breech moves in two directions, in the first when rolling back and in the second when rolling, a stationary cylinder is located near it, in which there is a movable piston rigidly fixed through the rod with breech, when a shot is fired during the recoil of the gun, the breech moves with the piston, an air rarefaction zone is formed in the working cavity of the cylinder and air near the breech, saturated with powder gases, through the one-way valve is sucked into the working cavity of the cylinder and is there until the gun is rolled, when the piston is rolled, the piston moves in the opposite direction and air is displaced from the cylinder through the second one-way valve through the pipeline into the filter-neutralizer, air containing powder gases is removed from combat compartment.