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1. (WO2016190900) MUNITION DOTÉE DE FRAGMENTS PRÉFORMÉS
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

Claims

What is claimed is:

1 . A munition comprising:

a casing;

an explosive enclosed by the casing;

a shell surrounding the casing; and

preformed fragments in a volume between the casing and the shell;

wherein the preformed fragments have a combined mass greater than the combined mass of the casing and the shell.

2. The munition according to claim 1 , or any claim that depends from claim 1 , wherein the preformed fragments fill the volume between the casing and the shell and continuously surround the radially outer surface of the casing from one end of the casing to the opposite end of the casing.

3. The munition according to claim 1 , or any claim that depends from claim 1 , wherein the preformed fragments include free flowing metal pellets.

4. The munition according to claim 1 , or any claim that depends from claim 1 , wherein the preformed fragments include balls having a diameter between 0.10 inches to 0.50 inches.

5. The munition according to claim 1 , or any claim that depends from claim 1 , wherein the preformed fragments include balls having a first size distribution between 0.10 inches to 0.25 inches in diameter, and a second size distribution between 0.25 inches to 0.50 inches in diameter; and

wherein a ratio of the amount of preformed fragments having the first size distribution to the amount of preformed fragments having the second size distribution is between 1 : 1 to 20: 1 .

6. The munition according to claim 1 , or any claim that depends from claim 1 , wherein the preformed fragments are enclosed as parts of self-contained

fragmentation packs that are located in the volume between the casing and the shell.

7. The munition according to claim 1 , or any claim that depends from claim 1 , wherein the preformed fragments are in cast fragment blocks that include multiple of the preformed fragments held together by a binder.

8. The munition according to claim 1 , or any claim that depends from claim 1 , wherein the preformed fragments are made of metal selected from the group consisting of: steel, tungsten, aluminum, tantalum, lead, titanium, zirconium, copper, molybdenum, magnesium, zirconium-coated steel, zirconium-coated tungsten, and other similar materials.

9. The munition according to claim 1 , or any claim that depends from claim 1 , wherein the volume between the casing and the shell includes fragment-free interstices between the preformed fragments, and wherein the interstices include a filler material.

10. The munition according to claim 9, or any claim that depends from claim 9, wherein the filler material is a polymer.

1 1 . The munition according to claim 9, or any claim that depends from claim 9, wherein the filler material is a metallic powder.

12. The munition according to claim 1 , or any claim that depends from claim 1 , wherein the shell is configured as an airframe.

13. The munition according to claim 12, or any claim that depends from claim 12, wherein the airframe is configured to emulate the aerodynamic properties of an existing munition airframe.

14. The munition according to claim 1 , or any claim that depends from claim 1 , wherein the casing is a unitary welded casing made of steel or aluminum, and wherein the shell is made of aluminum, steel, and/or composites.

15. The munition according to claim 1 , or any claim that depends from claim 1 , wherein the preformed fragments are disposed in the volume to enable emulation of the center of gravity characteristics of an existing munition.

16. A munition comprising:

a casing;

an explosive within the casing;

a shell radially outwardly spaced from the casing and forming an annular volume therebetween, the annular volume being continuous from one end of the casing to an opposite end of the casing; and

preformed fragments that fill the annular volume and continuously surround the radially outer surface of the casing from the one end of the casing to the opposite end of the casing.

17. The munition according to claim 16, or any claim that depends from claim 16, wherein the preformed fragments are randomly distributed within the annular volume.

18. The munition according to claim 16, or any claim that depends from claim 16, wherein the preformed fragments include categories of preformed fragments having different sizes, different size distributions, different shapes, different material compositions, and/or different densities; and

wherein the respective categories of preformed fragments are arranged in layers in the annular volume.

19. A method for assembling a munition comprising the steps:

encasing an explosive in a canister;

enclosing the canister within a shell housing; and

after the enclosing, pouring preformed fragmentation into a volume between the canister and the shell housing.

20. The method of claim 19, further comprising the steps:

filling the volume between the canister and the shell housing with the preformed fragments and surrounding the radially outer surface of the canister with the preformed fragments from one end of the canister to the opposite end of the canister; and

sealing the volume between the canister and the shell housing.