DE19719701C2 - Submunition for mist generation - Google Patents

Description

The present invention relates to a submunition for mist generation.

It is known to have rotationally symmetrical submunitions for smoke projectiles with a height hen / width ratio of about 1: 1 to produce, usually four to five submunition NEN or less are integrated in a shell. Since the submunitions are centered in Storey and the twist of the shell is transferred to this, they remain stable on a secondary trajectory after ejection, so that too much litter ground ammunition is avoided.

The number can be increased by increasing the number of submunitions on each floor Increase fog sources on the ground. The formation of a homogeneous is desirable  Cloud of fog, which is particularly important when the fog is in the immediate vicinity Proximity of the individual fog body contributes significantly to the overall coverage, as z. B. at emissive fog in the infrared range is the case.

The increase in the number of submunitions has so far mostly been achieved by sub ammunition in the form of cylinder segments or wedges (so-called "wedges") were formed, which were arranged radially around the central axis of the projectile and each because they weigh up to a bomblet. The secondary trajectory of these segments or wedges after projectile ejection, however, is disadvantageously related to the projectile spin Lich as in the case of imported bomblet bullets, influenced so that after the ejection There is a high radial acceleration, which leads to a large distribution of the fog body leads and is also strongly dependent on the output height. There is the Danger that the fog bodies are too far apart and therefore to an inhomogeneous Ne lead cloud.

For example from DE 29 08 116 C2 and DE 28 30 119 A1 are throwing bodies with Nebella are known in which at least part of the active ingredient is disc-shaped with a zen central explosive / primer or a central powder soul is formed.

DE 29 08 217 C2, for example, mists in the form of cylindrical, one on top of the other derliegender, flat discs with an open center hole known, which is separately indicated arranged ejection charge, which also serves as an ignition charge, from a sleeve under safer Ignition of all fog bodies are ejectable.

It is also known that the burn-up time of a submunition over its level, the pressure and / or adjust the formulation of their fog active mass. So is from DE 33 26 884 C2 for example the setting of a combustion rate of a fog set Known use of special recipes.  

For example, DE 37 07 694 C2 discloses an ignition charge with a nitrocellulose Propellant powder compact and fibers made of conductive material. A pyrotechnic gene A mixture of red phosphorus and a binder is for example from DE 34 43 778 A1 known.

The invention has for its object to lie submunitions for mist generation distant, used in bullets or mortar cartridges, the basic pattern (the so-called Bundle "ground pattern"), d. H. lead in particular to a more homogeneous cloud of fog than it has been possible so far.

According to the invention, this object is achieved by a submunition body for generating smoke solved according to claim 1.

Claim 2 describes a preferred embodiment of the sub according to the invention ammunition.

The invention is therefore based on the surprising finding that by halving, Thirds, quarters or fifths of the height of the active ingredient, relative to its width, d. H. by Reduce the mass and thus the weight, and by simultaneously reducing the effective time measurement of the setting of physical and chemical parameters, the number of submu nition bodies per floor or mortar cartridge can be enlarged without it becoming one undesirable large distribution of the submunitions on your secondary trajectories comes to essentially avoid inhomogeneous cloud formation. Here are the disc-shaped and reinforced submunitions spin stabilized and are not radi al thrown away, so that they conventional wedges or even known disc loads are far superior.

Furthermore, according to the invention, an ignition decomposition charge spontaneously reacts after ignition Formation of a large volume of hot gases. The hot gases in turn ignite the effect  substance, possibly via an ignition retarder, while on the other hand by the pressure abge the floor of the projectile carrying the submunition, not shown blows up and the submunition is pulled outwards by the escaping gases.

The casing according to the invention can advantageously perform two functions. On the one hand, the active ingredient "discs" are individually ignitable in the air and on the ground, each because of a lighter or igniter attached to the corresponding casing hesitant, while on the other hand the risk of disassembly due to swirl or the like mi is minimized. The latter function is also reinforced by the active ingredient through Einla like to be improved by fibers. Furthermore, the envelopes according to the invention can also be used for Inclusion of the projectile load, when shot, contain a support structure.

Further features and advantages of the invention result from the description below Exercise in which an embodiment of the invention using one of a single figure existing, schematic drawing, which is a sectional view through an inventive ß submunitions shows, is explained in detail.

The submunition body 1 of the figure consists of a sheath 2 , an active mist composition 3 as an active ingredient with embedded fibers 4 and an ignition decomposition charge 5 and is designed to be rotationally symmetrical in a height / width ratio of 1: 3, ie as a disk. The fog mass comprises 3 red phosphorus. Furthermore, the envelope 2 is connected to an ignition retarder, not shown, which, if desired, is initiated by the central ignition igniter charge 5 . Thus, the ignition decomposition charge 5 reacts spontaneously after ignition to form a large volume of hot gases. These hot gases in turn ignite the fog active mass 3 via the ignition retarder, while the pressure builds up the bottom of a projectile, not shown, carrying the submunition body 1 and the submunition body 1 is pulled outwards by the escaping gases.

A large number of these disc-shaped submunitions 1 , each with a reinforced and held-together fog agent 3 and an ignition retarder, can be incorporated into a shell or a mortar cartridge, which then has the following advantages:

• a) The basic pattern is bundled.
• b) A stable secondary ballistics is achieved.
• c) The fog sources per pattern are increased.
• d) An individual ignition possibility exists both in the air and on the ground.

The obvious in the above description, in the drawing and in the claims Features of the invention can be used both individually and in any combination the realization of the invention in its various embodiments essential his.

Claims (2)

1. Submunition body ( 1 ) for generating smoke for a spin-stabilized carrier projectile with axial submunition output, formed by a stackable, essentially calamific, flat, disk-shaped compact with a height / width ratio of approximately 1: 2 to 1: 5, which is of a thin, central soul from a mist mass ( 3 ) igniting and the compacts separating charge ( 5 ) is interspersed, and has red phosphorus as the main active ingredient, and in the mist active mass ( 3 ) incorporated fibers ( 4 ) and / or through a thin coating ( 2 ) in structure and shape from firing, ejection and load-stable, the burn-up time is chemically and / or physically adjustable. 2. Submunition body according to claim 1, characterized in that the sheath ( 2 ) is designed in the form of a film or a container, the container preferably comprising a support frame for receiving the projectile load when fired.