Firearm Suppressor Diverging Bore for Blast and Flash Reduction
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Solution Overview
Problem
Existing firearm sound suppressors face issues such as high back pressure, premature failure due to radial pressures and temperatures, and ineffective suppression of muzzle flash, especially at high temperatures or after extended use.
Innovation Solution
The implementation of a front plate with a diverging central bore in firearm sound suppressors, which allows for a more controlled expansion of high-pressure propellant gases, reducing secondary flash events and turbulent properties, thereby improving noise and flash characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If conventional suppressors use extended baffles and multi-stage chambers to reduce muzzle blast, then noise suppression improves, but back pressure increases and reliability decreases
Solution Approach 1:
The patent applies curvature by replacing conventional straight baffles with arc-shaped baffles that have rounded edges and curved surfaces. The arc baffle includes a curved leading edge and a curved trailing edge, creating smooth gas flow paths that reduce turbulence and pressure buildup. This curved geometry allows effective noise suppression while maintaining lower back pressure and improved reliability compared to straight-baffle designs.
2Object-generated harmful factors
If suppressors operate at high temperatures to maintain effectiveness, then flash suppression improves, but premature failure due to radial pressures and temperatures increases
Solution Approach 1:
The patent implements prior cushioning through the arc baffle design that creates gradual gas expansion chambers. The curved geometry of the baffle and housing provides progressive pressure relief and temperature management before gases exit the suppressor. This pre-cushioning effect reduces peak thermal and pressure stresses on suppressor components, extending service life while maintaining flash suppression effectiveness.
3Ease of manufacture
If conventional suppressors use straight baffle designs, then manufacturing is simpler, but gas expansion control is less effective increasing turbulence
Solution Approach 1:
The patent replaces straight baffle designs with arc-shaped baffles featuring curved leading and trailing edges. While slightly more complex to manufacture than straight baffles, the curved geometry provides superior gas flow control by eliminating sharp corners and creating smooth expansion paths. This reduces gas turbulence and improves overall suppressor performance while remaining manufacturable using standard machining or forming processes.
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 diverging central bore design effectively reduces muzzle blast and eliminates muzzle flash, while also reducing the risk of premature suppressor failure due to controlled gas expansion and reduced back pressure.
Implementation Method 1
The curvature profile is configured to allow for more controlled expansion of high-pressure propellant gases exiting the suppressor through the central bore
Implementation Method 2
The internal chambers further serve to reduce the temperature of the propellant gases so as to cause a corresponding reduction in the noise produced by the 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.