Reverse-Flow Firearm Suppressor for Low-Backpressure Sound Reduction
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Solution Overview
Problem
Existing firearm suppressor designs suffer from backpressure, mechanical failures, accuracy issues, excessive sound signature, and flash due to gas trapping and inefficient gas expansion, leading to increased weight and length, which affects performance and reliability.
Innovation Solution
A firearm suppressor with a reverse flow design that redirects exhaust gases into multiple pathways of varying lengths and orientations, incorporating a reversing baffle and flow directors to manage gas flow, reduce backpressure, and enhance sound suppression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional baffle and chamber design is used to trap expanding gasses, then sound suppression is achieved, but backpressure causes firearm malfunction and mechanical failures
Solution Approach 1:
The patent inverts the traditional gas flow direction by using a reversing baffle that redirects high-pressure gasses backward into the chamber instead of allowing them to exit forward through small holes. This reverse flow design reduces backpressure on the firearm while maintaining sound suppression effectiveness.
Solution Approach 2:
The suppressor is divided into multiple chambers (first chamber, second chamber, third chamber) with multiple baffles that segment the gas flow path. This segmentation allows progressive pressure reduction and directional control of gasses, eliminating the single-point pressure buildup of traditional designs.
2Object-affected harmful factors
If suppressor length and internal volume are increased to achieve maximum sound reduction, then sound suppression improves, but weight and overall length increase making the firearm more cumbersome
Solution Approach 1:
The patent employs a nested chamber configuration where the first, second, and third chambers are arranged concentrically with each other. This nesting allows the suppressor to achieve extended gas expansion pathways and effective sound suppression in a more compact overall volume, reducing weight while maintaining performance.
Solution Approach 2:
The patent transitions from a traditional linear single-path design to a multi-dimensional concentric chamber arrangement. By utilizing radial and axial dimensions simultaneously, the suppressor achieves longer effective gas travel distance and better sound suppression without proportionally increasing overall length or weight.
3Volume of stationary object
If traditional designs are used, then gas expansion is limited, but gas pressures are maintained until bullet exits causing high pressure, velocity and heat at exit
Solution Approach 1:
The reversing baffle redirects high-pressure gasses backward into the chamber before the bullet exits, allowing preliminary expansion and pressure reduction. Flow directors then guide the expanded, cooled gasses through multiple pathways, ensuring pressure and temperature are reduced before final exit.
Solution Approach 2:
Flow directors act as intermediary elements between the chambers and the exit, controlling and directing gas flow through multiple pathways. These intermediaries ensure progressive expansion and cooling of gasses, preventing high-temperature, high-velocity direct exit.
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 suppressor achieves effective sound reduction, flash suppression, and thermal management while maintaining a compact size, reducing weight, and improving accuracy and reliability by diffusing gases through multiple paths, thereby enhancing performance.
Implementation Method 1
a reversing baffle disposed at one end of the inner cylinder and configured to reverse a flow of gasses from the inner chamber and direct the gasses into the outer chamber
Implementation Method 2
at least one reverse flow pathway comprising a reverse section and a forward section, and where at least one reverse flow pathway fluidly couples the inner chamber with an end cap
Implementation Method 3
most basic designs do not create optimum gas expansion, diffusion and cooling, because the designs provide poor heat transfer 'heat sink' capabilities
Data Source
AI summary
An apparatus is disclosed for a firearm suppressor. In certain examples, the firearm suppressor includes an outer cylinder defining a longitudinal axis, and an inner cylinder having an inner chamber, where the inner cylinder is disposed at least partially within the outer tube and defines an outer chamber with the outer cylinder, where the outer chamber is disposed between an inner surface of the outer cylinder and an outer surface of the inner cylinder. The suppressor also includes a reversing baffle disposed at one end of the inner cylinder and configured to reverse a flow of gasses from the inner chamber and direct the gasses into the outer chamber, and at least one reverse flow pathway comprising a reverse section and a forward section, and where the at least one reverse flow pathway fluidly couples the inner chamber with an end cap.