Assembly of explosive charges with scalable explosive power

EP4639072A1Pending Publication Date: 2025-10-29EURENCO FRANCE SAS
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Patent Information

Application Number
EP2023841017
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-12-20
Filing Date
2023-12-19
Publication Date
2025-10-29

AI Technical Summary

Technical Problem

Existing munitions with adjustable explosive power require interface materials, added cavities, or complex priming devices to control detonation, limiting their modularity and the ability to operate on more than two explosive power levels.

Method used

A monolithic assembly of explosive charges with different critical detonation diameters, where a high critical diameter charge is initiated by a priming relay to detonate low critical diameter charges, without requiring interface materials or additional cavities, allowing for multiple power levels by varying the number of low critical diameter charges detonated.

Benefits of technology

Enables a munition with modular explosive power without interface materials or complex priming devices, allowing for precise control of explosive output in multiple modes, enhancing targeting accuracy and reducing collateral damage.

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Abstract

The invention relates to an integral assembly of explosive charges and their associated priming devices, comprising a first explosive charge C1 made of a composition M1, coupled to at least one priming relay R1, the explosive charge C1 including in its volume at least one other explosive charge C2 made of a composition M2, each explosive charge C2 being coupled to a priming relay R2. The assembly is such that the critical diameter of the composition M1 of the explosive charge C1 is greater than the critical diameter of the composition M2 of the explosive charge C2. Each explosive charge C2 together with its priming relay R2 is arranged at a distance D from each priming relay R1, namely at a distance which is greater than the thickness of the number of cards corresponding to a negative detonability index test of the composition of the priming relay R1.
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