Bullet Projectile with Internal Electromagnetic Induction Ignition

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Solution Overview

Problem

Existing exploding bullets require high frictional impact to ignite incendiary and explosive materials, which can fail to detonate if the target offers little resistance, and often waste space with incendiary loads, limiting their penetration capability and reliability.

Innovation Solution

A double impact bullet system with an internal magnetic hammer and concentric cylindrical coil that generates a high voltage spark discharge upon impact, allowing detonation of explosive materials regardless of frictional resistance, and eliminating the need for an incendiary load by using the space for additional high explosive material.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If high explosive material is used that requires high frictional impact to ignite, then the explosive power is increased, but the reliability of detonation decreases when target offers little resistance

Engineering Contradiction:
Improveamount of high explosive materialVSAvoidreliability of detonation
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent replaces the friction-based mechanical ignition system with an electromagnetic induction system. A magnet moves through a coil during bullet deceleration to generate electrical current that triggers the explosive, eliminating dependence on frictional heating and ensuring reliable detonation regardless of target resistance.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an intermediary electromagnetic induction mechanism between the bullet's kinetic energy and the explosive detonation. The magnet-coil system acts as a mediator that converts mechanical deceleration into electrical energy, which then reliably triggers the high explosive without direct frictional contact.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Quantity of substance

If incendiary material is included in the bullet, then the explosive capability is enhanced, but the space for high explosive material is reduced

Engineering Contradiction:
Improveexplosive capabilityVSAvoidspace for high explosive material
Core Design Contradiction:
Quantity of substanceVSVolume of moving object

Solution Approach 1:

The patent extracts and removes the incendiary material component from the traditional HEIAP bullet design. By eliminating the incendiary load, the entire internal volume of the bullet can be dedicated to high explosive material, maximizing the quantity of explosive without the need for separate incendiary compartments.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The electromagnetic induction system serves multiple functions: it acts as both the triggering mechanism for the explosive and the space-saving replacement for the incendiary system. This multi-functional approach eliminates the need for separate incendiary material while maintaining or enhancing overall explosive capability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Device complexity

If traditional friction-based ignition system is used, then the structure is simple, but the penetration capability is limited due to space constraints

Engineering Contradiction:
Improvestructural simplicityVSAvoidpenetration capability
Core Design Contradiction:
Device complexityVSStrength

Solution Approach 1:

The patent changes the fundamental operating parameter of the ignition system from friction-based thermal ignition to electromagnetic induction. This parameter change allows for increased explosive material volume (enhancing penetration capability) while the electromagnetic components (magnet and coil) occupy minimal space, maintaining reasonable structural simplicity.

Inventive Principle:
Principle #35Parameter changes

4Reliability

If high voltage spark discharge system is added to the bullet, then the detonation reliability is improved, but the device complexity increases

Engineering Contradiction:
Improvedetonation reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The electromagnetic induction system is self-activating during bullet deceleration. The motion of the magnet through the coil automatically generates the electrical current needed for detonation without requiring external power sources, switches, or complex control circuits. This self-service mechanism achieves high reliability while minimizing added complexity.

Inventive Principle:
Principle #25Self-service

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 system achieves reliable detonation with reduced risk of accidental explosion during transport, generates a spherical shock wave for enhanced armor penetration, and allows the use of difficult-to-ignite explosive materials, providing superior damage capabilities compared to prior art.

Implementation Method 1

A wire wound in a cylindrical coil has an electrical property called inductance. If a permanent magnetic is moved into the coil the magnetic flux through the inside of the coil will change with time and a voltage will appear across the two ends of the wire and a current will appear in the wire.

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

the ends at which are generated a high voltage spark discharge capable of detonating even the most stubborn of explosive materials

Methodology Applied
Scientific EffectElectrical discharge: Electric Spark

Implementation Method 3

The friction between the bullet and the object it hits causes the incendiary material in the nose of the bullet to ignite

Methodology Applied
Scientific EffectFrictional heating: Friction

Data Source

PatentUS10578413B1Bullet projectile with internal electro-mechanical action producing combustion for warfare
Publication Date: 2020.03.03 BURKE DOUGLAS
  • US10578413B1 patent drawing
  • US10578413B1 patent drawing
  • US10578413B1 patent drawing

AI summary

A bullet projectile is described with an internal magnetic hammer providing electromagnetic induction upon impact.