Firearm Suppressor with Helical Flutes and Zig-Zag Gas Flow
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Solution Overview
Problem
Conventional firearm suppressor designs trap pressure in the initial chamber, causing back pressure, mechanical failures, accuracy issues, and a significant thermal signature due to poor heat transfer and gas expansion, leading to malfunctions and increased cyclic rates.
Innovation Solution
A firearm suppressor with a symmetrical three-dimensional gas flow design that eliminates the initial blast baffle, featuring a monolithic core with helical flutes and interdigitated baffles to direct gases in a zig-zag pattern, promoting continuous pressure release, minimal backpressure, and efficient heat transfer, along with a flash hider to extinguish muzzle flash.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If conventional suppressor designs use an initial chamber and blast baffle to trap expanding gases, then gas pressure is contained and directed, but back pressure builds up causing barrel fouling, mechanical failures, and increased cyclic rates
Solution Approach 1:
The patent removes the traditional blast baffle and initial chamber design, extracting the pressure-trapping function from the suppressor system. Instead of containing pressure in a closed chamber, the design allows gases to expand freely from the muzzle outwards, eliminating the source of back pressure that causes barrel fouling and mechanical failures.
Solution Approach 2:
The patent transitions from a one-dimensional linear gas flow path (through chambers and baffles) to a three-dimensional radial expansion pattern. Gases expand outward in multiple directions from the muzzle in a controlled volumetric pattern, utilizing spatial dimensions to manage pressure without creating back pressure against the barrel.
2Stress or pressure
If conventional suppressors use small holes for gas exit, then gas flow is restricted and pressure is maintained, but turbulence is created causing accuracy issues
Solution Approach 1:
The suppressor incorporates multiple discrete baffle elements arranged in a specific pattern, segmenting the gas flow path into controlled zones. This segmentation allows gases to expand and redirect through multiple small openings in the baffles, maintaining pressure control while distributing flow to minimize turbulence and its impact on bullet accuracy.
3Temperature
If conventional suppressors lack adequate heat transfer capabilities, then gas expansion is limited, but thermal signature increases and heat damage occurs
Solution Approach 1:
The suppressor employs baffles with selectively positioned and sized openings, creating zones of different thermal and flow characteristics. Certain areas provide enhanced heat transfer through controlled gas-structure interaction, while other zones manage flow direction and pressure, achieving localized optimization of thermal management throughout the suppressor structure.
4Use of energy by moving object
If conventional suppressors allow ambient air ignition in chambers, then complete combustion occurs, but large muzzle flash is produced notifying enemy location
Solution Approach 1:
The suppressor design allows propellant gases to begin expanding and cooling immediately upon exiting the muzzle, before complete combustion can occur. The controlled expansion and mixing with ambient air in the suppressor structure prevents the ignition of unburned propellant, eliminating the source of large muzzle flashes that would reveal operator position.
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 achieves reduced thermal and sonic signatures, improved accuracy, and rapid water drainage, minimizing mechanical failures and operational stress while maintaining effectiveness across various cartridges.
Implementation Method 1
a plurality of flow structures disposed in the outer chamber and positioned to direct firearm combustion gasses in a zig-zag pattern
Implementation Method 2
The openings conduct the firearm combustion gasses between the inner chamber and the outer chamber
Implementation Method 3
the pair of V-shaped flow structures configured to direct the firearm combustion gasses along a fluid pathway that is off-axis
Data Source
AI summary
An apparatus is provided for a firearm suppressor. The apparatus includes an outer tube defining a longitudinal axis, and an inner cylinder defining an inner chamber. The inner cylinder is disposed at least partially within the outer tube and defines an outer chamber with the outer tube, where the outer chamber is disposed between an inner surface of the outer tube and an outer surface of the inner cylinder, and where the inner cylinder comprises at least one opening to fluidly couple the inner chamber with the outer chamber. The apparatus also includes at least one flow structure disposed in the outer chamber and positioned to direct firearm combustion gasses in a fluid pathway that is off-axis with respect to the longitudinal axis.