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Passive defence system against hollow charged weapons

Inactive Publication Date: 2011-01-27
FALCK SCHMIDT DEFENCE SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0014]Preferably and in contrast to the elements in the above mentioned patent GB 101836, the elements do not have an armour on their side facing a possible warhead attack. Instead, the elements have a wall facing a direction for possible warhead attack which is produced in a material with a material thickness and material strength of the order necessary to withstand the pressure of the pressurised fluid but without being armoured to a degree which substantially hinders the warhead to penetrate the second wall. This embodiment of the invention implies that an efficient defence mechanism is provided with low weight, as an outer, heavy armour is avoided, which makes it especially suitable for light weight military vehicles. Thi

Problems solved by technology

This passive armour in this disclosure has the disadvantage that a hit part of the armour is not easily repaired and implies a weakened part of the armour until a repair garage is reached by the vehicle.
Especially in connection with strategic multi-hit attacks on the same area of the armour, this system is disadvantageous
The spring mechanism does not have any practical defence effect on attacks with hollow charge weapons, which indicates that this system is not envi

Method used

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  • Passive defence system against hollow charged weapons
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  • Passive defence system against hollow charged weapons

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Example

[0022]The drawing illustrates a defence barrier according to the invention. The barrier comprises a support 1, for example an armour shield or a grid in front of an armour shield, in front of which a number of elements, generally denoted 3, according to the invention are positioned. The elements 3 are fastened to the support 1 by first fastener 2. Such fasteners 2 can be used to fasten elements 3d individually or in groups of elements 3a, 3b, 3c. Such groups of elements 3a, 3b, 3c may, in this case be fastened mutually by second fastening means 4.

[0023]In case that one or several of the elements 3 are damaged, the elements 3 are easily replaced by demounting the elements 3 by loosening the first fasteners 2. If the elements 3a, 3b, 3c are fastened in groups of elements, an entire group 3a, 3b, 3c may be replaced by loosening its fastener 2 to the support 1. Alternatively, both the first fastener 2 and the second fastener 4 may be loosened and single elements within one group may be ...

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Abstract

A defence barrier against hollow charge warheads, the barrier comprising a plurality of sealed, demountable elements filled with pressurised fluid and being provided side by side to form the barrier. The pressure of the fluid is above 100 bars.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a defence barrier against hollow charge warheads, the barrier comprising a plurality of sealed, demountable elements filled with pressurised fluid and being provided side by side to form the barrier.BACKGROUND OF THE INVENTION[0002]When a shaped hollow charge warhead detonates upon collision with a target, the energy is concentrated to the center of the hollow space in front of the charge. A powerful jet of the explosion gases hits the target with a tremendous speed and penetrating pressure. The effect can be increased by putting a metal liner to the surface of the hollow. When the explosion occurs, the liner metal is formed into a plasma jet burning its way through the target.[0003]For armoured vehicles, a number of related defence mechanisms have been developed. One if the method includes an explosive layer sandwiched between two metal layers, for example as disclosed in U.S. Pat. No. 5,637,824 by Benyami and in referenc...

Claims

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Application Information

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IPC IPC(8): F41H5/007F41H7/02
CPCF41H5/013F41H5/007
Inventor FALCK-SCHMIDT, JAN
Owner FALCK SCHMIDT DEFENCE SYST