Cartridge Data Link Conductive Coating for Fouling Reduction

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Solution Overview

Problem

Current ammunition systems face challenges in quickly and efficiently transferring power and data to guidance components within projectiles, particularly when using non-conductive case materials, which can lead to fouling and residue contamination in the gun bore.

Innovation Solution

A data link system is integrated into the cartridge system, comprising electrical conductors and insulators, allowing for the rapid transfer of power and data signals between an external system and the projectile, using a network of conducting and insulating materials to minimize fouling and residue.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-generated harmful factors

If non-metallic cellulose case material is used, then complete burning during firing is achieved minimizing particulate fouling, but electrical power and data transfer to guidance components becomes difficult

Engineering Contradiction:
Improveparticulate foulingVSAvoidpower and data transfer system
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

A conductive coating is applied to the inner surface of the cellulose case to serve as an intermediary that enables electrical power and data transfer while the cellulose material itself continues to burn completely. The conductive coating acts as a mediator between the non-conductive cellulose case and the electrical guidance system

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The case is constructed as a composite structure combining cellulose material with a conductive coating layer. This composite approach allows the bulk cellulose to provide complete combustion and minimal fouling while the conductive coating layer provides the necessary electrical pathways for power and data transfer

Inventive Principle:
Principle #40Composite materials

2Productivity

If power and data are provided as quickly as possible prior to firing, then energy storage requirements are minimized and rate of fire is increased, but the risk of fouling and residue contamination increases

Engineering Contradiction:
Improverate of fireVSAvoidresidue contamination
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The conductive coating serves as a stable intermediary pathway that allows rapid power and data transfer without requiring extended preparation time. The coating enables immediate electrical connection when the projectile is loaded, eliminating the need for prolonged energy storage while maintaining clean combustion characteristics

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If a continuous electrical conductor system is used in the casing, then power and data transfer is enabled, but fouling and residue contamination in the gun bore increases

Engineering Contradiction:
Improveelectrical conductor systemVSAvoidfouling
Core Design Contradiction:
Device complexityVSObject-generated harmful factors

Solution Approach 1:

The electrical conductor system is implemented as a thin conductive coating applied to the inner surface of the cellulose case rather than as discrete conductor elements. This composite structure allows complete combustion of the cellulose while the conductive coating maintains electrical pathways and leaves minimal residue

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The conductor system is extracted from the bulk material and applied as a surface coating, separating the electrical function from the structural and combustion functions. This allows the cellulose to burn completely while the conductive layer remains as a thin, low-fouling pathway

Inventive Principle:
Principle #2Taking out (Extraction)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The data link system enables rapid and efficient power and data transfer to guidance systems, reducing fouling and residue contamination, thereby increasing the rate of fire and maintaining the integrity of the gun bore.

Implementation Method 1

a conductive coating is applied to the inner surface of the case to facilitate the transfer of power and data from an external system to the projectile

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentEP2038603B1Methods and apparatus for a projectile data link system
Publication Date: 2015.04.29 RAYTHEON CO
  • EP2038603B1 patent drawingFigure 1
  • EP2038603B1 patent drawingFigure 2~3
  • EP2038603B1 patent drawingFigure 4

AI summary

Methods and apparatus for a data link system according to various aspects of the present invention may be incorporated into a cartridge system. The cartridge system may comprise a case and a projectile. The data link system may be connected to the case and the projectile to provide signals. The data link system a first connection point and a second connection point disposed on the case and an electrical connector connected to the first connection point and the second connection point