DE102019134356A1 - Chamber muzzle brake - Google Patents

Abstract

A chamber muzzle brake (1) for ammunition is disclosed. This has a three-part sabot and comprises a hollow body. The body contains outflow openings (2) which are arranged radially on the body. The aforementioned outflow openings are arranged on the body and three outflow openings (2) are provided on the body. The three outflow openings (2) are arranged at an angle (7) of 120 degrees to one another on the body.

Description

The present invention relates to a chamber muzzle brake [KMB]. Corresponding muzzle brakes are used for mounting on gun barrels in order to reduce recoil loads acting on the gun barrel after a shot.

Correspondingly, the muzzle brake can also reduce the recoil load indirectly via the barrel to the vehicle or to the weapon station.

The shape and size of a corresponding chamber muzzle brake is essentially dependent on the required performance figure.

According to the prior art, KMB with at least one chamber and laterally oriented outflow openings are known. In these chamber muzzle brakes, the associated outflow openings are often arranged symmetrically to the sides.

A sub-caliber bullet is a bullet with a sabot [TK]. For this purpose, the sabot at least partially surrounds the projectile and balances the caliber of the weapon barrel. By burning off the powder contained in the propellant, the projectile is propelled with the help of the TC.

Hole muzzle brakes are also known from the prior art. In contrast to the chamber muzzle brake, a cylindrical body provided with several holes is included here, which deflects the gases produced during the shot to the side. In contrast to this, chamber muzzle brakes consist of a continuous chamber in a cylindrical base body, this chamber having radially arranged outflow openings. The radially arranged outflow openings cause the outflowing powder gases to be diverted to the side.

If a projectile with a sabot passes through such a muzzle brake, the escaping powder gases are discharged radially through the outflow openings, which causes the aforementioned reduction in the recoil load.

A corresponding chamber muzzle brake is known, for example, from US 2005/0252365 A1. Two radially arranged outflow openings are provided through which the escaping powder gases are diverted laterally from the muzzle brake when firing. The muzzle brake itself is placed on the end of a weapon barrel.

An aforementioned hole muzzle brake is, for example, from EP 0 085 754 A1 known. This muzzle brake is also arranged at one end of the weapon barrel and has a cylindrical body which has a large number of radially arranged small bores.

Modern sabot usually consist of three segments, which means that in a chamber muzzle brake with two outflow openings, a different transverse force load acts on each of the three cage segments due to the powder gases flowing out to the side. As a result, the sabot could possibly not separate symmetrically from the projectile and negatively affect the precision of the projectile.

The disadvantage of using a muzzle brake is that it cannot counteract the recoil forces that occur as effectively as with the chamber muzzle brake. Correspondingly, the performance figures for hole muzzle brakes are lower than for chamber muzzle brakes. In order to achieve an equivalent performance figure with a muzzle brake, a longer pipe section with the corresponding holes of the muzzle brake is required.

The object of the present invention is therefore to disclose a muzzle brake in which the same transverse force load occurs when the barrel passes through, in particular when the muzzle brake passes through, each sabot segment when using a three-part sabot and thus the sabot can be detached from the projectile as symmetrically as possible. Another object of the present invention is to achieve a high performance figure.

These tasks are solved with the features of the main claim. A weapon system is also proposed, consisting of a weapon barrel, a projectile and the aforementioned muzzle brake.

For this purpose, a chamber muzzle brake is proposed for ammunition with a three-part sabot. Three-part sabot have become established for projectiles because they have good impact behavior. For this purpose, the proposed chamber muzzle brake consists of a hollow body which has outflow openings arranged radially on the body.

According to the invention, three of such outflow openings are proposed and these are arranged on the body in such a way that they have an angle of 120 ° to one another. The chamber muzzle brake according to the invention thus has three outflow openings each with the same spacing and each at the same angle to one another.

With this configuration, an outflow opening can be assigned to each segment of the sabot, so that in the case of a projectile with the sabot, the same transverse force can act on a segment of the sabot when it is fired.

The chamber muzzle brake itself preferably has a fastening means in order to fasten the chamber muzzle brake to the weapon barrel. For this purpose, a screw connection is conceivable, for example, whereby the chamber muzzle brake can be screwed onto a corresponding external thread of the weapon barrel by means of an internal thread.

The chamber muzzle brake is preferably arranged on the weapon barrel in such a way that one of the outflow openings points away from the floor on which the weapon system with the weapon barrel stands. Accordingly, the other two outflow openings point away as diagonally as possible to the sides. The aim of this arrangement is to stir up soil contamination as little as possible when it is fired. Whirled up soil pollution poses a risk of injury, but in any case the view is impaired. It is important to prevent both of these as much as possible.

As with other muzzle brakes, the chamber muzzle brake according to the invention has a central axis which is aligned with the central axis of the weapon barrel when the chamber muzzle brake is mounted on a weapon barrel.

In order to reduce the weight of such a muzzle brake, it is proposed to at least partially cut out the material of the chamber muzzle brake. For this purpose, it is proposed to provide the chamber muzzle brake in a special embodiment with at least one recess in order to reduce the weight. These recesses can be designed according to performance specifications and must be designed in such a way that the chamber muzzle brake can absorb the corresponding forces acting on it, but is nevertheless not designed to be too heavy.

It is preferably proposed that the chamber muzzle brake be made of metal. It is particularly preferably proposed that the chamber muzzle brake be designed in one piece. In this way, a simple manufacturing process for a muzzle brake according to the invention can be designed.

A system is also claimed, consisting of a weapon barrel, which is assigned to a mobile or stationary weapon station. In this sense, mobile weapon stations can be vehicles, with manned and unmanned vehicles also being possible. Stationary weapon stations can also have such a weapon barrel.

Furthermore, the system comprises the aforementioned chamber muzzle brake, a projectile with a sabot, which is arranged in the weapon barrel. The chamber muzzle brake is arranged at one end of the weapon barrel.

In this system according to the invention, the ammunition is equipped with a three-part sabot. In this system, the three parts of the sabot are particularly preferably arranged symmetrically in order to allow equal forces to act on the corresponding outflow openings. Depending on the combination of weapon and ammunition used, it can be advantageous for the impact behavior if the segments of the TC are aligned with the outflow openings.

• 1: Eine erfindungsgemäße Kammermündungsbremse in perspektivischer Darstellung
• 2: Eine erfindungsgemäße Kammermündungsbremse mit eingebrachtem Geschoss

Further features emerge from the attached drawings. Show it:

• 1 : A chamber muzzle brake according to the invention in a perspective view
• 2 : A chamber muzzle brake according to the invention with an inserted projectile

1 shows a chamber muzzle brake 1 with a hollow body which is essentially cylindrical. According to the invention there are also three outflow openings 2 provided and these are radially on the body of the chamber muzzle brake 1 arranged. The three outflow openings 2 are so radially on the body of the muzzle brake 1 arranged that they make an angle 7th of 120 ° to each other.

The chamber muzzle brake 1 is for arrangement on a weapon barrel 3 provided, the chamber muzzle brake 1 therefor at least one fastening means 6th includes. The fastener 6th is designed, for example, as a screw connection. For this purpose, the chamber muzzle brake 1 a thread. The chamber muzzle brake can be used via this 1 on the gun barrel 3 be screwed on.

The chamber muzzle brake 1 as well as the gun barrel 3 each have a central axis 4th , with the muzzle brake installed 1 on the gun barrel 3 the two central axes 4th be aligned with each other.

To reduce the weight of the muzzle brake 1 can recesses 5 be provided. The weight of the muzzle brake 1 will then be reduced by the gutted material.

2 shows the introduction of a corresponding floor 8th in a gun barrel 3 , where the 2 the chamber muzzle brake according to the invention 1 shows in front view.

It can be clearly seen here that the projectile used 8th includes a three-part sabot. An alignment of the TK to the openings of the KMB, as in 2 can be seen is not absolutely necessary. Depending on the ammunition, certain orientations can result in advantages in terms of impact behavior.

The recesses are clearly visible again 5 to find the weight of the muzzle brake 1 to reduce. Since the three segments of the sabot are arranged symmetrically, the outflow openings are 2 the chamber muzzle brake 1 arranged at the same distance, namely 120 ° to each other. That angle 7th (120 °) therefore exists between two outflow openings 2 .

The invention is not restricted to the aforementioned features. Rather, further configurations are possible. This would be, for example, further fastening means 6th conceivable, for example locking connections or permanent connections such as welding.

List of reference symbols

1

Chamber muzzle brake

2

Outflow openings

3

Gun barrel

4th

Central axis of 1

5

Recess

6th

Fasteners

7th

angle

8th

bullet

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• EP 0085754 A1 [0009]

Claims (10)

Chamber muzzle brake (1) for ammunition with a three-part sabot, with a hollow body, with outflow openings (2) which are arranged radially on the body, characterized in that three outflow openings (2) are arranged on the body and the three outflow openings (2) in one Angle (7) of 120 degrees to each other are arranged on the body. Chamber muzzle brake (1) after Claim 1 , characterized in that at least one fastening means (6) is provided in order to fasten the chamber muzzle brake (1) to a weapon barrel (3). Chamber muzzle brake (1) after Claim 2 , characterized in that the fastening means (6) is designed as a thread. Chamber muzzle brake (1) after Claim 2 or 3 , characterized in that when the chamber muzzle brake (1) is attached to the weapon barrel (3), the weapon barrel is aligned with a floor and one of the outflow openings (2) is aligned with the direction opposite to the floor. Chamber muzzle brake (1) according to one of the Claims 1 to 4th , characterized in that the hollow body is designed symmetrically and has a central axis (4). Chamber muzzle brake (1) according to one of the Claims 1 to 5 , characterized in that at least one recess (5) is provided in order to reduce the weight of the chamber muzzle brake (1). Chamber muzzle brake (1) according to one of the Claims 1 to 6th , characterized in that the chamber muzzle brake (1) is made of metal. Chamber muzzle brake (1) according to one of the Claims 1 to 7th , characterized in that the chamber muzzle brake (1) is made in one piece. System consisting of a weapon barrel (3), a chamber muzzle brake (1) according to one of the Claims 1 to 8th and a projectile (8) which is arranged as ammunition in the weapon barrel, the chamber muzzle brake (1) being arranged at one end of the weapon barrel (3), characterized in that the ammunition comprises a sabot which is made in three parts and that the three Parts of the sabot according to the outflow openings (2) of the chamber muzzle brake (1) can be aligned in order to improve the impact behavior. System according to Claim 9 , characterized in that the three parts of the sabot are arranged symmetrically.

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