DE102010053706A1 - Smoke grenade for armored vehicle, has metal balls which are arranged in space between fog mass and lid and are dismantled upon initiation of bursting element for radial-symmetrical distribution of smoke - Google Patents

Abstract

The smoke grenade (1) has a bursting element (3) for separating and igniting the fog mass (2) so as to produce smoke. A massive portion (7) contains metal balls (6) which are arranged in a space between the fog mass and lid (8) and are dismantled upon initiation of bursting element for radial-symmetrical distribution of smoke.

Description

The invention relates to a smoke throwing body according to the preamble of claim 1.

Such smoke projectiles are intended to form a fog curtain to protect vehicles or troops against detection, detection and target tracking. Usually, smoke projectiles are carried on an armored vehicle in a plurality of ejector tubes and, if necessary, ejected by igniting a propellant in a trajectory defined by the angular setting of the ejector tube. After leaving the ejector tube, the pyrotechnic active charge of the smoke throwing body is disassembled and ignited by initiating the bursting charge.

From the DE 10 2006 008 309 A1 For example, a smoke-impacting body with a pyrotechnic active charge for generating an infrared-emitting and visually impermeable mist is known. The pyrotechnic active charge is formed by a modularly structured smoke body, which has two different active bodies, wherein the one active body causes a temporally fast fog structure and the other active body has a long burning time, so that a fast fog assembly is paired with a long burning time is achieved.

However, such conventional smoke projectiles can not ensure safe protection against all approaching threats. Thus, some modern rockets have elaborate counter-countermeasure techniques that enable the rocket to overcome many a camouflage fog and hit the smoke-protected vehicle by means of intelligent sensors.

It is therefore an object of the present invention to provide a smoke throwing body, which can also ensure protection of objects from threat missiles with intelligent sensor technology.

The present object is achieved by a smoke-impact body according to claim 1. Advantageous embodiments of the present invention are given in the subclaims.

The inventive smoke projectile has a mist active mass for generating a camouflage mist and a Zerlegerladung for disassembling and igniting the Nebelwirkmasse. Further, the smoke throwing body contains an accumulation of a plurality of solid particles or at least one solid body, which is set up for decomposition into a plurality of massive particles upon initiation of the bursting charge. After initiation of the Zerlegerladung the massive particles are distributed in particular by the implementation of the Nebelwirkmasse in the air. Thus, in addition to the Tarnnebelwand creates a wall of massive particles. This wall of massive particles provides additional protection against threatening missiles, which can not be diverted from the perceived goal due to their intelligent sensor technology through the Tarnnebelwand.

Preferably, the solid particles are designed such that they are able to act on an approaching missile, against which the smoke throwing body is used to penetrate or destroy. When dimensioning the volume and / or the mass of the massive particles, the fact can be exploited that the approaching threat missile has a high intrinsic speed. This means that even at low airspeed with high relative velocity the massive particles hit the approaching threat body. Thus, it is sufficient that the massive particles each have a mass of a few grams, for example between 5 and 15 g, in order to penetrate the outer shell of the missile and damage components underneath. The massive particles thus use the energy of the approaching missile to penetrate it. Thus, missiles can be combated with intelligent sensors.

For example, the plurality of solid particles may comprise a number of spheres. These may be, for example, metal balls, in particular balls made of steel. Typical diameters for such metal balls are in the range between 3 and 10 mm. However, the solid particles may also have other geometric shapes, such as cube or cuboid shape. While particles with flat boundary surfaces may, under certain circumstances, be less expensive to manufacture, spherical particles have an inflow cross-section independent of the orientation of the particle. In addition, balls may possibly achieve a higher penetration effect by their point-like impact surface than a solid particle with flat boundary surfaces of the same mass.

The balls may be arranged in bulk in a space between the fogging mass and a lid of the smoke throwing body. Preferably, the balls are arranged close to each other in a single layer or multilayer in hexagonal close-packed spherical packing in the room. Due to the dense packing of the balls, a high repulsive force between the individual balls can be achieved when the misting mass detonates, so that a widely fanned-out spherical wall can be produced in a very short time.

According to a preferred embodiment of the present invention, the balls are connected by means of a hard foam to a ball package, which is coupled to the Nebelwirkmasse and / or the Zerlegerladung that it is decomposed by initiating the Zerlegerladung and / or by the implementation of Nebelwirkmasse into individual balls , which can be distributed in a row to a spherical wall. Due to the foaming of the balls in a ball package even more complex arrangements of the balls can be realized permanently and reproducibly to each other. In addition, the assembly of the inventive smoke throwing body is simplified by the use of a foamed ball package.

Preferably, the misting mass is disposed around the bursting charge. As a result, the fogging compound can be applied in a particularly effective large-volume manner upon initiation of the breaker charge. Particularly preferably, the Zerlegerladung is arranged in a longitudinal channel, which is located in the region of the longitudinal axis of the mist effective mass. As a result, a largely radially symmetrical distribution of the mist effective mass can be achieved.

Furthermore, a delay charge can be provided in the inventive smoke projectile, which causes a delayed effect of the Zerlegerladung. By this delay charge, it is possible to set the mechanism for generating the camouflage even when launching the smoke thrown into motion, at the same time the actual training of the camouflage to a predefined time after leaving the ejector tube to shift so that the fog formation at an optimal time and thus at an optimum distance from the object to be protected.

The delay charge is preferably also arranged in the already mentioned longitudinal channel, following the Zerlegerladung. This ensures that the delay charge in contact with the burster charge can initiate the burster charge after its burnup.

Preferably, an ignition element is arranged at the end of the delay charge, which is opposite to the end of the delay charge facing the Zerlegerladung, which is arranged to ignite the delay charge upon firing of the smoke throwing body. It is particularly advantageous if the delay charge comprises a deflagrative converting charge. Namely, when the delay charge is ignited at the contact point between the delay charge and the Zerleger charge side facing away from the delay charge, the delay charge burns deflagrativ with a predetermined time constant in the direction of the contact point between delay charge and Zerlegerladung. This has the particular advantage that the mechanism of mist generation can already be initiated when shooting the smoke hatch, without further measures would be necessary below, such. As a signal to initiate the Zerlegerladung from the launching mechanism to the fired smoke projectile or a complex time fuse.

The bursting charge of the smoke throwing body may comprise a pyrotechnic and / or an explosive-based charge. In this case, an explosive-based burster charge has the advantage that the Nebelwirkmasse not only is very effectively ignited, but the Nebelwirkmasse is also very spontaneously and large volume distributed, regardless of the distribution of Nebelwirkmasse by the air flowing into the mist throwing body. The spontaneity of the distribution of the fogging mass can be advantageously increased even further by the fact that the fogging mass comprises a charge that converts detonatively.

An embodiment of the inventive smoke projectile is shown in longitudinal section in the accompanying drawing and will be described below.

The figure shows an embodiment of the smoke throwing body 1 with a mist effect mass 2 to generate a cloak and with a burster charge 3 for disassembling and igniting the Nebelwirkmasse 2 , The smoke-ball 1 has a collection of balls 6 on which to a ball package 7 are foamed. The balls 6 but can also be arranged loosely to each other. In both cases, the balls are 6 after detonation of the Nebelwirkmasse 2 distributed in the air, so that in addition to the fog wall, a spherical wall is formed. The balls 6 are in a space between the fog effect mass 2 and a lid 8th the smoke throwing body 1 arranged. The foamed-in ball package of the illustrated embodiment represents only one possible embodiment of the solid body 7 which is capable of breaking up into several massive particles 6 upon initiation of the bursting charge 3 is set up. It is Z. B. also possible that the massive body 7 a metal plate which is pre-fragmented in a certain pattern. Such Vorfragmentierung can be done for example by scribing or introducing grooves in the surface of the metal plate. At these structural weakenings, the metal plate can then upon initiation of the Zerlegerladung and / or detonation of the fogging compound 2 easily fragmented and the desired massive particles 6 form.

The life of the spherical wall is much smaller than the life of the Tarnnebelwand. By Nachschießen further smoke projectile, however, the life of the spherical wall can be increased. Thus, for example, a series of twelve smoke bombs are fired at a frequency of 0.5 Hz, so that over the entire period a spherical wall is constructed with alternating collections of balls.

The embodiment of the illustrated smoke projectile 1 also has a delay charge 4 on which a delayed effect of the Zerlegerladung 3 causes. It is emphasized that providing a delay charge 4 to solve the problem underlying the invention is not required. The delay charge 4 However, advantageously makes it possible to set the mechanism for generating the camouflage even when shooting the smoke projectile in motion and at the same time to shift the actual training of the camouflage to a predefined time after leaving the ejector so that the fog formation at an optimal time and thus in an optimal distance to the object to be protected takes place.

The burster charge 3 is in one in the region of the longitudinal axis of the Nebelwirkmasse 2 located longitudinal channel arranged. The fog effect mass 2 is cylindrical around the burster charge 3 arranged around.

The delay charge 4 is in the longitudinal channel following the bursting charge 3 arranged. Here is the delay charge 4 with the burster charge 3 such in operative contact that when burning the delay charge 4 to the contact point between the delay charge 4 and bursting charge 3 the burster charge 3 is initiated. This active contact or the active coupling between delay charge is preferably carried out 4 and bursting charge 3 by the heat development when burning off the delay charge 4 ,

At the end of the delay charge 4 which is that of the burster charge 3 facing the end of the delay charge 4 is opposite, is a ignition element 5 arranged, which is set up, the delay charge 4 at launch of the smoke throwing body 1 to light.

About a variation of the length of the delay charge 4 between ignition element 5 and contact point between delay charge 4 and bursting charge 3 can the delay time between launch of the smoke-throwing body 1 and igniting the fogging mass 2 - And thus the removal of the camouflage nebula from the object to be protected - be specified in a defined manner. It is also conceivable, for example, for a given length of the delay charge 3 a variably adjustable delay time can be achieved that several ignition elements 5 lengthwise at the delay charge 4 are arranged. If a shorter delay time is desired, it simply becomes a primer 5 for lighting the delay charge 4 which initiates the contact point between delay charge 4 and bursting charge 3 is closer. The selection of the required ignition element 5 can be carried out automatically within the framework of a fully automated, software-supported high-speed assessment.

LIST OF REFERENCE NUMBERS

1

A smoke

2

Fog active mass

3

bursting

4

recovery charge

5

ignition

6

Massive particle / sphere

7

Massive body / ball package

8th

cover

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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.

Cited patent literature

• DE 102006008309 A1 [0003]

Claims (10)

Smoke throwing body ( 1 ) with a fogging compound ( 2 ) for generating a camouflage nebula and with a bursting charge ( 3 ) for disassembling and igniting the Nebelwirkmasse ( 2 ), characterized in that the smoke throwing body ( 1 ) an accumulation of several massive particles ( 6 ) or at least a massive body ( 7 ), which can be broken down into several massive particles ( 6 ) upon initiation of the burster charge ( 3 ) is set up. Smoke throwing body ( 1 ) according to claim 1, wherein the massive particles ( 6 ) are configured such that they are on an approaching missile, against which the smoke throwing body ( 1 ) is used, penetrating or destructive acting. Smoke throwing body ( 1 ) according to claim 1 or 2, wherein the plurality of massive particles ( 6 ) comprise a number of balls, preferably metal balls. Smoke throwing body ( 1 ) according to claim 3, wherein the balls ( 6 ) in loose form in a space between the fogging mass ( 2 ) and a lid ( 8th ) of the smoke throwing body ( 1 ) are arranged. Smoke throwing body ( 1 ) according to claim 3, wherein the balls ( 6 ) by means of a hard foam to a ball package ( 7 ), which in such a way with the mist effect mass ( 2 ) and / or the burster charge ( 3 ) is coupled by initiating the bursting charge ( 3 ) and / or by the implementation of the mist effect mass ( 2 ) into individual spheres ( 6 ), which can be distributed in a row to a spherical wall. Smoke throwing body ( 1 ) according to one of the preceding claims, wherein the mist effect mass ( 2 ) around the burster charge ( 3 ) is arranged. Smoke throwing body ( 1 ) according to claim 6, wherein the bursting charge ( 3 ) in one in the region of the longitudinal axis of the fogging mass ( 2 ) located longitudinal channel is arranged. Smoke throwing body ( 1 ) according to claim 7, wherein a delay charge ( 4 ), which is a delayed effect of the Zerlegerladung ( 3 ) causes. Smoke throwing body ( 1 ) according to claim 8, wherein the delay charge ( 4 ) in the longitudinal channel following the bursting charge ( 3 ) is arranged. Smoke throwing body ( 1 ) according to claim 9, wherein at the end of the delay charge ( 4 ), which corresponds to that of the burster charge ( 3 ) facing end of the delay charge ( 4 ), an ignition element ( 5 ), which is set up, the delay charge ( 4 ) when shooting the Nebelwurfköpers ( 1 ).

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