Off-Axis Serpentine Suppressor Chamber for Lower Backpressure
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Solution Overview
Problem
Suppressors that capture more gas to reduce noise and light from firearm discharge often increase backpressure, leading to wear on firearm components and adverse performance effects due to increased length, weight, or diameter.
Innovation Solution
An off-axis serpentine flow chamber with an inner wall and annular chamber featuring helical partitions that allow discharge gases to travel helically back and forth, maintaining similar exit velocity and reducing backpressure, thus minimizing wear and length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a suppressor captures more discharge gas, then the discharge sound is reduced, but backpressure in the barrel increases
Solution Approach 1:
The patent introduces a serpentine flow path that moves gas flow from a simple linear path to a three-dimensional winding path through the suppressor. This dimensional change allows the gas to travel a longer distance within the same suppressor volume, improving sound suppression while maintaining lower backpressure compared to traditional linear designs.
Solution Approach 2:
The serpentine flow chamber employs curved and helical pathways instead of straight lines to guide gas flow. These curved paths increase the residence time of gas in the suppressor and improve mixing with cooling air, enhancing sound reduction while managing backpressure through gradual direction changes rather than sharp angles.
2Object-affected harmful factors
If a suppressor becomes larger to capture more gas, then sound suppression improves, but operator performance is adversely affected
Solution Approach 1:
The serpentine flow chamber is nested within a compact cylindrical housing, with the flow path winding through the interior space efficiently. This nesting allows a long flow path to be contained within a short suppressor length, providing effective sound suppression without increasing the overall size that would hinder operator maneuverability or quickness.
Solution Approach 2:
By utilizing the radial and axial dimensions of the cylindrical suppressor volume, the serpentine path packs a long flow trajectory into a compact form factor. This dimensional optimization ensures adequate sound suppression performance while keeping the suppressor length and diameter within acceptable limits for firearm operation.
3Object-affected harmful factors
If a suppressor becomes larger to capture more gas, then sound suppression improves, but the suppressor weight increases
Solution Approach 1:
The serpentine flow chamber is nested within a compact cylindrical housing, with the flow path winding through the interior space efficiently. This nesting allows a long flow path to be contained within a short suppressor length, providing effective sound suppression without increasing the overall size that would hinder operator maneuverability or quickness.
Solution Approach 2:
The suppressor incorporates a perforated tube within the serpentine flow chamber design, allowing for potential use of different materials with varying density and strength properties. This composite structure enables weight optimization while maintaining the structural integrity needed to withstand high-pressure gas flows and thermal loads.
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 serpentine flow chamber reduces wear on firearm components and minimizes performance impact by maintaining similar exit velocity and reducing suppressor length compared to other designs.
Implementation Method 1
At least one helical partition can be disposed in the annular chamber to define at least one interleaved helical pathway through the annular chamber. The interleaved helical pathway includes a first forward helical segment, a reverse helical segment sharing a first common wall with the first forward helical segment, and a second forward helical segment sharing a second common wall with the reverse helical segment.
Data Source
AI summary
A firearm sound suppressor can include an outer housing that defines a bore axis and an inner wall disposed at least partially within the outer housing. The inner wall can be oriented along the bore axis and includes a cylindrical central chamber. An annular chamber can be disposed between the outer housing and the inner wall. At least one helical partition can be disposed in the annular chamber to define at least one interleaved helical pathway through the annular chamber. Each interleaved helical pathway includes a first forward helical segment, a reverse helical segment sharing a first common wall with the first forward helical segment, and a second forward helical segment sharing a second common wall with the reverse helical segment. The first and second common walls can be distinct from one another.