Firearm Suppressor Baffle with Discrete Interconnected Chambers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing firearm sound suppressors face challenges such as increased weight and cost due to length requirements, limited compatibility with different calibers, high backpressure issues, and manufacturing complexities that lead to inaccuracies and unwanted contact between projectiles and baffles.
Innovation Solution
The design incorporates dual, discrete interconnected chambers between baffles with specific angular positions and features like circumferential flanges and ports to manage gas flow and pressure, allowing for efficient sound attenuation and reduced backpressure without the need for a closely matched bore diameter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the suppressor length is increased to achieve maximum sound attenuation, then sound reduction effectiveness is improved, but weight and cost increase
Solution Approach 1:
The suppressor is divided into multiple discrete baffles (at least three) that are axially spaced apart, creating segmented expansion chambers between them. This segmentation allows sound attenuation to be achieved through distributed gas expansion across multiple shorter sections rather than requiring a single long continuous chamber, thereby reducing overall suppressor length and weight while maintaining effectiveness.
2Object-affected harmful factors
If the suppressor is designed for specific caliber matching, then sound attenuation effectiveness is improved, but adaptability to different calibers deteriorates
Solution Approach 1:
The suppressor design incorporates a central bore with a diameter that is not closely matched to any single projectile caliber, allowing it to accommodate various calibers. The expansion chambers and baffles are designed to handle discharge gases across different ammunition types, making the suppressor universally applicable to multiple firearm calibers while maintaining sound attenuation effectiveness.
3Reliability
If a radially peripheral chamber spanning the length of the suppressor is used, then gas containment is improved, but backpressure increases
Solution Approach 1:
Instead of using a single continuous radially peripheral chamber, the design employs discrete expansion chambers located between individual baffles. These segmented chambers allow gas containment while providing multiple escape pathways for discharge gases to exit axially, preventing pressure buildup and reducing backpressure compared to a single spanning chamber.
4Manufacturing precision
If tighter tolerances are applied to match bore diameter to projectile caliber, then manufacturing precision is improved, but manufacturing cost increases
Solution Approach 1:
The central bore is designed with a diameter that does not require tight matching to any specific projectile caliber. This universal bore design relaxes manufacturing tolerances, allowing for less precise and therefore lower-cost manufacturing processes while still effectively containing and directing discharge gases across various ammunition types.
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
This design achieves effective sound reduction while maintaining a compact structure, minimizing weight and cost, and accommodating various calibers with reduced backpressure and projectile inaccuracies.
Implementation Method 1
dual, discrete interconnected chambers between adjacent baffles... manage gas flow and pressure... efficient sound attenuation
Data Source
AI summary
A firearm suppressor also known as a moderator includes a number of coaxially joined steel baffles for dissipating discharge gasses. Each baffle can have an internal funnel structure having a central aperture through which the firearm projectile passes. Adjacent funnel structures form interconnected primary and secondary chambers connected by a port through a flange separating the chambers. A notch in the central aperture of one funnel structure directs flow toward the port on the diametrically opposite side of the next funnel structure. A radial hole through the funnel structure connects successive primary and secondary chambers. The flange is axially located to be radially inward from an overlapping joint between two adjacent baffles in order to provide structural support to the joint.