Muzzle End Cap Venting for Flash and Noise Suppression
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Solution Overview
Problem
Existing firearm muzzle accessories do not effectively suppress both the sound and flash produced by exhaust gases, leading to significant noise and visible emissions.
Innovation Solution
A firearm accessory comprising a fitting, sleeve, fluid pressure dissipation structure, and end cap assembly that includes multiple exhaust passages and angled ports to dissipate fluid pressure and redirect exhaust gases, reducing noise and flash through a combination of turbulence and redirection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a single exhaust passage is used in the end cap, then the structure is simple, but the flash and noise suppression effectiveness is insufficient
Solution Approach 1:
The exhaust passage is divided into multiple separate passages (first exhaust passage and second exhaust passage) instead of using a single passage. Each passage has different orientations and functions, with the first passage extending generally parallel to the projectile axis and the second passage extending at an angle, creating multiple exhaust streams that work together to suppress flash and noise more effectively
Solution Approach 2:
The exhaust gas flow is redirected from a single-axis flow to multi-directional flow by introducing the second exhaust passage at an angle relative to the projectile axis. This creates exhaust streams in different spatial dimensions, increasing the surface area over which the exhaust gas can dissipate energy and reducing the intensity of the flash and noise in any single direction
2Object-affected harmful factors
If exhaust gas is directly expelled from the suppressor, then the structure is simple, but the fluid pressure and energy of exhaust gas cause significant noise and flash
Solution Approach 1:
The exhaust gas flow path is segmented into multiple passages within the end cap assembly, with each passage handling a portion of the exhaust gas flow. This segmentation allows the high-pressure exhaust gas to be distributed across multiple smaller streams, reducing the pressure and energy concentration in each individual stream and thereby reducing noise and flash
Solution Approach 2:
The end cap assembly acts as an intermediary component between the suppressor body and the external environment. It provides a transition zone where exhaust gas can be redirected and dissipated through multiple passages before exiting, mediating the interaction between the high-pressure exhaust gas and the external atmosphere to reduce harmful effects
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 accessory significantly reduces the noise and flash signature of firearm discharge by dissipating exhaust gas energy and redirecting it through multiple passages, enhancing suppression performance.
Implementation Method 1
The accessory significantly reduces the noise and flash signature of firearm discharge by dissipating exhaust gas energy and redirecting it through multiple passages, enhancing suppression performance
Data Source
AI summary
A firearm accessory and an end cap useful with the firearm assembly. The firearm assembly handles exhaust gas expelled with a round fired from a firearm and includes a fitting, a sleeve, a fluid pressure dissipation structure, and an end cap assembly located at a distal end of the fluid dissipation structure. The sleeve defines an internal volume that at least partially receives the fluid dissipation structure. The end cap assembly and the fluid dissipation structure at least partially define one or more distal chambers in communication with the internal volume. The end cap assembly defines an angled port.