RU2627901C1 - Muzzle brake - Google Patents

Abstract

FIELD: weapon and ammunition.

SUBSTANCE: muzzle brake contains a body in the form of a central part for mounting a barrel on the muzzle with a hole for projectile discharge and a peripheral part with a cylindrical or conical outer surface. The central part of the hull is connected to the peripheral bridges with the formation of the through channels for the release of powder gases. A toroidal surface is made at the inner cavity front end of the muzzle brake peripheral part, a surface of a complex, streamlined shape, for example, in the form of a spherical surface is made on the end of the central part of the body.

EFFECT: simplifying the design of the muzzle brake, reducing weight, increasing the effectiveness of kickback damping.

2 dwg

Description

The invention relates to muzzle devices to reduce recoil and can be used in small arms aircraft. It is known that the strong return of small arms, in particular, on jet fighters, negatively affects its maneuverability at the time of firing. Reducing recoil when shooting increases the accuracy of hits and improves the maneuverability of the aircraft.

Known muzzle brake containing elements having a helical surface, made with decreasing step in the direction of projectile movement, forming together with the inner surface of the housing helical channels, and the entrances to these channels are communicated with the exit from the barrel, and their outputs communicated with the entrance to the outlet channel, and the element deflecting the gas flow is made in the form of a conical skirt mounted on the body, with the top of the cone directed along the direction of the projectile (Pat. RU No. 2225973 class. F41A 21/32).

When fired, the flow of powder gas flowing from the bore channel as it moves away from the muzzle end is twisted around the axis of the barrel channel, providing a monotonic increase in the tangential velocity of the gas stream by passing this stream through the guide channels of the muzzle device, after which the powder gas is released into the atmosphere through exhaust channels of the muzzle device. The velocity of a part of the gas stream is converted to axial, directed opposite to the direction of projectile motion, as a result of which a reactive force appears on the partitions.

The disadvantage of the described device is the structural complexity and high weight caused by the presence of several screw surfaces.

Known muzzle brake containing a central part for installation on a muzzle cut of a barrel of a weapon with a conical outer surface, a flat end and a central hole in the form of a conical bell, a chamber with a projectile window, which is in communication with the barrel channel in its muzzle and is provided with internal partitions with openings for the passage of the projectile, the nozzle connecting the interior of the chamber to the atmosphere is made with the profile of an expanding annular gap connecting the atmosphere of the chamber to the atmosphere before the first along the projectile wall and is equipped with elements connecting parts of the muzzle device into a single unit, the above-mentioned elements are made in the form of longitudinal walls located inside the expanding annular gap, the internal partitions of the chamber are in the form of diffusers, the distance between the internal partitions of the chamber and between the muzzle section and the first in the course of the projectile the partition is smaller than the linear size of the projectile (Pat. RU No. 2228504 class. F41A 21/00).

The muzzle brake operates as follows. After the projectile (bullet) leaves the barrel, the outflow of powder gas into the chamber of the muzzle device begins. Gunpowder gas can only flow out of the chamber through the nozzle until the projectile has passed through the projectile window, because until this moment, the camera is locked axially by a projectile. After this, the powder gas has the ability to flow out through the nozzle and through the projectile window at the same time, and gas flows through the projectile window passing through the system of internal partitions, i.e. with high gas-dynamic resistance, which ensures its low speed at the exit from the projectile window, on the one hand, and its preferential flow through the nozzle, on the other hand. The nozzle forms a jet stream of powder gas directed to the breech of the barrel, which ensures traction, aimed at reducing the recoil momentum.

The disadvantage of the described device is the significant structural complexity, high weight, the internal partitions of the chamber in the front part, having the shape of diffusers, do not have time to get rid of powder gases when firing in bursts, thereby creating additional resistance to the movement of the projectile. The central part for installation on a muzzle cut of a weapon barrel with a conical outer surface, a flat end and a central hole in the form of a bell has a streamlined shape and does not provide effective formation of a jet stream, since it has significant aerodynamic resistance. This greatly reduces the effect of reducing returns.

The aim of the invention is to simplify the design of the muzzle brake, weight reduction while increasing its effectiveness in terms of reducing recoil force.

This goal is achieved by the fact that the muzzle brake contains a housing in the form of a central part for installation on the muzzle of the barrel with an opening for projectile release and a peripheral part with a cylindrical or conical outer surface, the central part of the body is connected to the peripheral jumpers with the formation of through channels for the release of powder gases, at the front end of the inner cavity of the peripheral part of the muzzle brake a toroidal surface is made, according to the invention, at the end of the central part of the housing The surface is complex, streamlined, for example, in the form of a spherical surface.

Elimination of internal partitions simplifies the design and reduces its weight while maintaining the efficiency of damping the recoil, the surface of the end face of the central part of the body of a complex streamlined shape, for example spherical, minimizes the loss of velocity of the gases leaving the muzzle brake in the form of a jet stream and, accordingly, increases the efficiency of damping the recoil of the gun barrel . In addition, a substantial area of increased pressure is not formed at the outer end of the muzzle brake, since an active ejection removal of the incoming air flow from the muzzle brake cavity through the through channels is carried out.

In FIG. 1 shows a muzzle brake, a cross section. The outer surface of the peripheral part of the muzzle brake housing is made conical.

The muzzle brake contains the central part of the housing 1 with an opening for projectile departure, the peripheral part with a conical outer surface 2, jumpers 3 connect the central 1 and peripheral 2 parts of the housing with the formation of through channels 4 for the release of powder gases into the atmosphere. The muzzle brake is installed on the barrel of the weapon 5. The arrows indicate the movement of powder gases at the time of the shot.

In FIG. 2 shows a muzzle brake, a cross section. The outer surface of the peripheral part of the muzzle brake housing is cylindrical, and the peripheral part itself is detachable with a removable cover. This technical solution provides, on the one hand, the minimum drag, on the other hand, the ease of maintenance of the muzzle brake.

The muzzle brake contains the central part of the casing 6 with an opening for the departure of the projectile, the peripheral part with a cylindrical outer surface 7, jumpers 8 connect the central 6 and peripheral 7 parts of the casing with the formation of through channels 9 for the release of powder gases into the atmosphere, the cover 10 is fixed on the peripheral part of the casing 7. The muzzle brake is installed on the barrel of the weapon 11. The arrows show the movement of powder gases at the time of the shot.

The muzzle brake (Fig. 1) works as follows, after the projectile leaves the barrel, the powder gases enter the cavity of the muzzle brake housing and partially leave it, the remaining part dynamically acts on the front end of the inner cavity of the peripheral part of the muzzle brake, compensating for the recoil force and moving along the inner surface of the peripheral part, leaves the muzzle brake through the through channels between the Central and peripheral parts of the housing. In this case, a jet stream is formed at the outlet to the atmosphere, which further reduces the recoil of the gun barrel. The implementation at the end of the central part of the surface of a complex, streamlined shape, for example spherical, can significantly reduce the resistance to movement of powder gases leaving the brake through the through channels, which further increases the damping effect by increasing the flow rate.

The muzzle brake (Fig. 2) works as follows, after the projectile leaves the barrel, the powder gases enter the cavity of the muzzle brake body and partially leave it, the rest dynamically acts on the inner surface of the cover of the peripheral part of the body, compensating for the recoil force and moving along the inner surface of the peripheral parts, leaves the muzzle brake through the through channels between the central and peripheral parts of the housing. In this case, a jet stream is formed at the outlet to the atmosphere, which further reduces the recoil of the gun barrel. The execution at the end of the central part of the surface of a complex, streamlined shape, for example spherical, can significantly reduce the resistance to the movement of powder gases leaving the brake through the through channels.

The muzzle brake has constructive simplicity, low weight while increasing its effectiveness in terms of reducing recoil.

Claims (1)

The muzzle brake contains a housing in the form of a central part for installation on a muzzle section of a barrel with an opening for projectile discharge and a peripheral part with a cylindrical or conical outer surface, the central part of the body is connected to the peripheral jumpers with the formation of through channels for the release of powder gases, at the front end of the internal cavity the peripheral part of the muzzle brake is made toroidal surface, characterized in that at the end of the Central part of the housing is made a complex surface, streamlined forms, for example, in the form of a spherical surface.

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