Diverging Central Bore for Firearm Suppressor Blast and Flash Control
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Solution Overview
Problem
Existing firearm sound suppressors face issues such as high back pressure leading to health risks, premature failure due to temperature and pressure differences during high rates of fire, and inconsistent muzzle flash suppression, especially at high temperatures and after prolonged use.
Innovation Solution
A diverging central bore design for firearm sound suppressors with a curvature profile that controls the expansion of propellant gases, reducing muzzle blast and flash by allowing controlled expansion and minimizing turbulent properties, while maintaining a desirable mass flux ratio through the central bore and peripheral vents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If conventional suppressor design is used, then muzzle blast is reduced, but back pressure increases causing health risks
Solution Approach 1:
The suppressor divides gas flow into multiple paths through peripheral vents and a central bore, segmenting the propellant gas exhaust into controlled expansion chambers and direct venting pathways to reduce back pressure while maintaining blast suppression
Solution Approach 2:
The front plate incorporates a central bore with specific geometric properties (diverging angle, length, diameter) that create localized gas expansion and venting characteristics, allowing different regions of the suppressor to handle gas flow differently to optimize both blast suppression and back pressure reduction
2Object-generated harmful factors
If multi-stage suppressor with radial vents is used, then muzzle blast is reduced through delayed cooling, but device complexity increases
Solution Approach 1:
The suppressor structure segments gas flow through peripheral vents and a central bore, creating multiple expansion chambers that delay and cool propellant gases in staged fashion, reducing muzzle blast through controlled multi-stage expansion rather than single-stage design
Solution Approach 2:
The front plate with its central bore serves multiple functions simultaneously: it acts as a structural component, a gas expansion chamber, a venting pathway, and a flash suppression element, reducing overall device complexity by combining multiple functions into a single component
3Object-generated harmful factors
If conventional suppressor design is used, then muzzle blast is suppressed, but suppressor fails prematurely due to temperature and pressure differences during high rates of fire
Solution Approach 1:
The suppressor divides the gas flow path into multiple segmented expansion chambers and venting pathways, distributing thermal and pressure loads across multiple structures rather than concentrating them in a single chamber, thereby preventing premature failure during high rates of fire
Solution Approach 2:
The central bore and peripheral vents create localized regions with different thermal and pressure characteristics, allowing heat and pressure to be distributed throughout the suppressor structure rather than concentrated in one location, improving durability during sustained firing
4Object-generated harmful factors
If conventional suppressor design is used, then muzzle blast is reduced, but inconsistent muzzle flash suppression occurs at high temperatures and after prolonged use
Solution Approach 1:
The suppressor segments the gas flow into multiple pathways through peripheral vents and central bore, creating multiple expansion zones that consistently manage flash generation across different operating conditions including high temperatures and prolonged use
Solution Approach 2:
The central bore geometry (diverging angle, length, diameter) is specifically designed to change gas expansion parameters in a controlled manner, maintaining consistent flash suppression performance across varying temperature and usage conditions by optimizing the expansion and venting characteristics
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 design effectively reduces muzzle blast and flash, minimizes health risks from back pressure, and prevents premature suppressor failure by optimizing gas expansion and flow, enhancing operational safety and effectiveness.
Implementation Method 1
The diverging portion includes a curvature profile configured to allow for more controlled expansion of high-pressure propellant gases exiting of the suppressor through the central bore
Implementation Method 2
The curvature profile provides an included angle of the central bore that decreases secondary flash events accompanying the expulsion of propellant gases
Data Source
AI summary
An apparatus and methods are provided for a front plate having a diverging central bore for firearm sound suppressors that improves noise and flash characteristics during firing a weapon. The central bore is disposed between a back surface and a front surface of the front plate. An untapered portion of the central bore extends from the back surface to a diverging portion that opens toward the front surface. The diverging portion includes a curvature profile configured to allow for more controlled expansion of high-pressure propellant gases exiting of the suppressor through the central bore. The curvature profile provides an included angle of the central bore that decreases secondary flash events accompanying the expulsion of propellant gases accompanying a fired bullet exiting the suppressor through the central bore. The curvature profile exhibits a cross-sectional area of the central bore that is proportional to a distance along the diverging portion.