Programmable Ammunition Separating Device for Line Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In large-caliber ammunition, the galvanic connecting line for power and data supply can remain in the barrel upon firing, posing a safety risk due to incomplete disconnection, especially when parts of the line are ejected rearward with the shell base while others exit at the muzzle.
Innovation Solution
A separating device, typically a piston with a sharp edge, is integrated into the propellant charge primer to ensure early and precise separation of the supply line, coupled with the pressure buildup during firing, ensuring the line is completely removed from the barrel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a continuous galvanic connecting line is used for power and data supply, then reliable power and data transmission is achieved, but line remnants remain in the barrel after firing
Solution Approach 1:
The continuous galvanic connecting line is divided into two separate segments: one connected to the propellant charge primer and another to the projectile. A separating device ensures these segments are cleanly disconnected during firing, preventing remnants from remaining in the barrel while maintaining reliable power and data transmission during the critical phase.
Solution Approach 2:
The separating device is pre-positioned on the propellant charge primer tip before firing. Upon ignition, the separating device automatically executes the disconnection action at the optimal moment, ensuring the line is separated before any remnants could remain in the barrel, thus preventing the harmful effect while maintaining transmission reliability.
2Object-affected harmful factors
If the line is separated early at the propellant charge primer, then complete removal from barrel is achieved, but the separating device adds complexity to the primer
Solution Approach 1:
The separating device is integrated with the propellant charge primer as a unified assembly. The piston, cylinder, and cutting edge are merged into the primer structure, utilizing the existing primer housing and ignition system. This integration minimizes additional complexity while achieving complete line separation and removal from the barrel.
Solution Approach 2:
The propellant charge primer is designed to serve multiple functions: ignition of the propellant charge, activation of the separating device, and ejection of the separated line remnants. The piston mechanism serves both as a separator and as a means to propel the disconnected line out of the barrel, reducing the need for additional dedicated components.
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 solution ensures a well-defined disconnection of the supply line, preventing remnants from remaining in the barrel, allowing safe operation and enabling reset of the fuse up to the time of firing, with simple and cost-effective retrofitting of existing primer designs.
Implementation Method 1
The piston is set in motion only when pressure builds up inside the propellant charge primer as a result of ignition
Implementation Method 2
The cable is sheared off by a separating device, such as a cutting edge on the surface of the piston
Data Source
AI summary
A separating device is integrated in ammunition, with which a line is separated at the earliest possible time during a firing process. The separating device is composed mainly of a piston, which preferably has a sharp edge, is guided in a rigidly mounted cylinder, and, in the unloaded state, is positioned by a shear flange. The cable is preferably securely supported in a protective tube which is connected with a propellant charge primer, and in which the cable is guided as far as the tip of the propellant charge primer and is then further guided to the rear end of the projectile. In the upper area of the cylinder, the cable is guided through a bore, which preferably lies transversely to the direction of acceleration of the piston, so that when the piston moves forward, the cable is separated by the sharp edge of the piston.