The invention relates to a warhead.
A hollow charge warhead is known from GB 1,171,362 which comprises pre-shaped fragments in the form of metal balls. However, this known warhead does not allow to choose several directions of the fragment distribution towards the target area and in particular no teaching is to be found regarding a so-called “back-spray” resp. “front-spray”. Another drawback of this known warhead consist in the fact that its fragmentation casing comprising the metal balls is contained within a cylindrical housing, i.e. does not form the outer surface of the warhead, thereby diminishing the effect of the fragments.
It is an object of the invention to provide a warhead allowing variable direction of the fragments distributed by explosion of the explosive charge of the warhead.
The invention solves the posed problem with a warhead as disclosed herein.
The advantages of the warhead according to the invention are the following:
Further advantageous embodiments of the invention can be commented as follows:
In a special embodiment the generally cylindrical portion is arranged in the rear region between the generally conical portion and the front region relative to the central axis. This arrangement of the conical portion and the cylindrical portion allows the back spray of fragments by explosion of the explosive charge of the warhead.
In another embodiment the generally conical portion is arranged in the rear region between the generally cylindrical portion and the front region relative to the central axis. This arrangement of the conical portion and the cylindrical portion allows the front spray of fragments by explosion of the explosive charge of the warhead.
In a further embodiment the warhead comprises a reflector. This embodiment allows the reflection of the shock waves in the direction of the outer wall of the conical portion resulting in the influence of the direction of the fragments provided on the outer wall of the conical portion of the warhead.
In a further embodiment the generally conical portion is longer as the generally cylindrical portion measured parallel to the central axis.
In another embodiment the generally conical portion is shorter as the generally cylindrical portion measured parallel to the central axis.
In again another embodiment the generally conical portion and the generally cylindrical portion are equal long measured parallel to the central axis.
In a further embodiment the hollow generally conical portion has a full cone angle of φ2 being at least 4 degrees, preferably 6 degrees.
In a further embodiment the hollow generally conical portion has a full cone angle of φ2 being at most 30 degrees, preferably 20 degrees.
In a further embodiment the warhead comprises a discontinuity running peripherally to the tubular structure between the cylindrical portion and the conical portion.
In a further embodiment the warhead comprises a bend between the cylindrical portion and the conical portion.
In a further embodiment the front region of the warhead does not comprise any fragments.
In a further embodiment the fragments comprise at least two different types of fragments.
In a further embodiment one type of fragments has essentially spherical shape and the other type of fragments has a non-spherical, preferably cuboid, parallelepipedic or tetrahedral shape.
In a further embodiment the at least two different types of fragments comprise different materials.
In a further embodiment the at least two different type of fragments are arranged in a single plane of the wall portion.
In another embodiment the at least two different type of fragments are arranged over each other.
In a further embodiment the fragments comprise a metal, metallic alloy or metal carbide, preferably steel, tungsten, tungsten carbide or aluminum.
“Fragments”: The term “fragments” means in the present specification any pre-shaped fragmentations or splinters made of various hard or hardenable materials.
“Reflector”: The term “reflector” covers in the present specification devices changing the direction of the shock waves being produced by e.g. detonation of an explosive charge.
A specific embodiment of the invention will be described in the following by way of example and with reference to the accompanying drawings in which:
The schematical illustration to time t(0) shows the starting configuration of the wall portion 4 in the rear region 3 of the tubular structure. The rear region 3 comprises the generally cylindrical portion 12 and the generally conical portion 13. The tubular structure is provided with a discontinuity 6, which in
The schematical illustration to time t(1) shows the kinetics at the moment when the detonation wave hits conical part of the tubular structure. Subsequently to hitting by the detonation wave the spherical fragments 7 are ejected from the wall portion 4. Subsequently to the ejection of the second fragments 7 and caused by the detonation wave the wall of the conical portion 13 of the rear region 3 splits up with the cylindrical portion 12 of the rear region 3. Subsequent to the splitting of the conical region 13 the first (non-spherical) fragments 9 are ejected from the wall portion 4 in a trajectory being different to the trajectory of the second fragments 7. The splitting-up of the conical and cylindrical regions 12 and 13 with each other results in an enhanced spray angle.
Depending on the matter whether the generally conical or the generally cylindrical portion are arranged next to the detonator/reflector back- or front-spray of the fragments can be achieved.
Furthermore, a lens effect can be achieved providing an enhanced amount of fragments in a specific zone.
Although the invention has been described in conjunction with specific embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, it is intended to embrace all such alternatives, modifications and variations that fall within the scope of the appended claims.
It is appreciated that certain features of the invention, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, various features of the invention, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable subcombination or as suitable in any other described embodiment of the invention. Certain features described in the context of various embodiments are not to be considered essential features of those embodiments, unless the embodiment is inoperative without those elements.
Filing Document | Filing Date | Country | Kind |
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PCT/CH2016/000007 | 1/15/2016 | WO | 00 |
Publishing Document | Publishing Date | Country | Kind |
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WO2017/120686 | 7/20/2017 | WO | A |
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Number | Date | Country | |
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20190025030 A1 | Jan 2019 | US |