Rotary Gun Suppressor Core for Flash and Shock Wave Reduction

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Solution Overview

Problem

Rotary machine guns produce significant noise, flash, and shock waves due to the rapid expansion of propellant gas and supersonic bullet travel, affecting adjacent individuals and their ability to concentrate or focus on tasks, especially with high rates of fire.

Innovation Solution

A suppression device for rotary machine guns featuring a body with porous structures, a core with symmetric suppression tubes, and a redirector to manage propellant gas, allowing it to flow through and cool before exit, with components manufactured as monolithic units using 3D printing to enhance structural integrity and reduce pressure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If conventional noise suppression devices are used with rotary machine guns, then some noise reduction is achieved, but the devices cannot effectively handle the sustained high-rate fire and produce significant shock waves and flash

Engineering Contradiction:
Improvenoise, flash, and shock waves affecting adjacent individualsVSAvoideffectiveness under sustained high-rate fire
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The suppression device is segmented into multiple suppression tubes (six tubes corresponding to six barrels) arranged symmetrically around a central core. Each tube handles propellant gas from a specific barrel, allowing the device to process high-rate fire from multiple barrels simultaneously. This segmentation enables effective noise, flash, and shock wave suppression even during sustained rotary machine gun operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The core is nested inside the body, and multiple suppression tubes are arranged around the central core. The core contains a central channel that receives propellant gas from all barrels, while the suppression tubes provide additional cooling and expansion space. This nested configuration maximizes the use of internal volume for gas management while maintaining a compact overall structure suitable for rotary machine guns.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Productivity

If propellant gas is allowed to expand rapidly, then the gun can maintain high rate of fire, but this creates significant shock waves and noise

Engineering Contradiction:
Improverate of fireVSAvoidshock waves and noise from propellant gas expansion
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The suppression device performs preliminary cooling and expansion of propellant gas before it exits the muzzle. The suppression tubes and central channel provide expansion space and cooling surfaces that gradually reduce gas pressure and temperature. This preliminary action prevents the formation of intense shock waves and reduces noise while allowing the gun to maintain its high rate of fire capability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The suppression device acts as an intermediary between the propellant gas and the external environment. The suppression tubes and central channel serve as intermediate chambers where propellant gas can expand and cool before interacting with the surrounding air. This intermediary structure mediates the harmful effects of rapid gas expansion, reducing shock waves and noise while preserving the firearm's operational effectiveness.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If a large suppression device is used to effectively suppress all harmful effects, then noise and shock are reduced, but the device becomes too complex and heavy for practical use

Engineering Contradiction:
Improvenoise and shock wave suppressionVSAvoidstructural complexity and weight
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The suppression device performs multiple functions simultaneously: noise suppression, flash suppression, shock wave reduction, and propellant gas cooling. The same suppression tubes and central channel structure that cool the gas also serve as noise-reducing expansion chambers and flash-suppressing enclosures. This multi-functionality eliminates the need for separate devices for each protective function, reducing overall complexity and weight while maintaining effectiveness.

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

Solution Approach 2:

The invention merges the suppression functions for multiple barrels into a single integrated device. Six suppression tubes are combined with a central core and enclosed within a single body structure. This merging of multiple suppression functions into one unified device reduces the total number of components needed compared to using separate suppressors for each barrel, thereby reducing overall complexity and weight while maintaining effective suppression of noise and shock waves from all barrels.

Inventive Principle:
Principle #5Merging (Combining)

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 suppression device effectively reduces noise, flash, and shock waves by cooling and disrupting propellant gas, enhancing safety and operational focus for adjacent individuals by minimizing adverse health effects.

Implementation Method 1

The body may include a portion defined as a porous structure configured to permit gas to flow through

Methodology Applied
Scientific EffectPorosity: Porosity

Implementation Method 2

a redirector at a distal end of the core and including an angled surface to direct propellant gas emitted through a central channel of the core radially outward

Methodology Applied
Scientific EffectReflection: Reflection

Implementation Method 3

Noise suppression devices reduce the noise by slowing the propellant gas, thus allowing the propellant gas to expand more gradually and cool before it collides with the air

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS12492877B2Suppression device for rotary machine gun
Publication Date: 2025.12.09 CENT FIREARMS CO
  • US12492877B2 patent drawing
  • US12492877B2 patent drawing
  • US12492877B2 patent drawing

AI summary

A suppression device for a rotary machine gun includes a body; and a core configured to fit inside the body, wherein the core includes: a plurality of suppression tubes symmetrically oriented around the core with one each of the plurality of suppression tubes corresponding to one of a plurality of barrels of the rotary machine gun, and a redirector at a distal end of the core and including an angled surface to direct propellant gas emitted through a central channel of the core radially outward.