Monolithic Gun Suppressor With Helical Slots for Expanding Projectiles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Suppressors for guns firing expanding projectiles, such as shot shells and pepper balls, face challenges in managing projectile expansion and gas expansion efficiently without excessive wear or structural weakness, as existing designs like trumpet baffles, guide rods, and perforated tubes are either costly, prone to wear, or limit gas expansion.
Innovation Solution
A monolithic suppressor design featuring a core with radially extending baffles and a helical slot pattern, integrated with a housing and end cap, that accommodates expanding projectiles while maintaining structural integrity and gas expansion efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If trumpet or bell shaped baffles are used to uniformly recompress an expanding projectile, then good gas expansion into chambers is achieved, but manufacturing cost increases and wear occurs quickly
Solution Approach 1:
The suppressor is divided into multiple chambers separated by baffles, with each chamber handling specific aspects of gas expansion and projectile containment. The segmentation allows straightforward cylindrical baffles to effectively manage projectile expansion through distributed containment zones rather than requiring complex single-piece trumpet-shaped baffles.
Solution Approach 2:
The cylindrical baffle structure is nested within the suppressor housing, creating a compact arrangement where the baffle's simple cylindrical form fits within the overall suppressor geometry. This nesting allows effective projectile containment without requiring the baffle itself to have complex trumpet or bell shaping.
2Reliability
If guide rods are used to constrain projectile diameter, then projectile expansion is limited, but gas expansion into chambers is restricted
Solution Approach 1:
The suppressor interior is segmented into multiple chambers by baffles positioned at specific intervals. This segmentation creates expansion zones between baffles where gases can freely expand without being constrained by continuous guide rods, while still maintaining projectile diameter control through the baffle structure itself.
Solution Approach 2:
The baffles act as intermediary structures between the projectile and the suppressor walls. Rather than using guide rods that directly contact and constrain the projectile, the baffles provide indirect containment through their cylindrical geometry, allowing gases to expand into the chambers while still limiting projectile expansion.
3Reliability
If a perforated tube is used to maintain projectile diameter, then projectile containment is improved, but gas expansion into chambers is limited due to tube strength requirements
Solution Approach 1:
Instead of using a continuous perforated tube that would need to be thick-walled to maintain strength, the suppressor uses segmented cylindrical baffles spaced along the barrel. These baffles create multiple smaller expansion chambers, allowing gases to expand into available volume while the baffles themselves maintain projectile diameter control without requiring excessive material thickness.
Solution Approach 2:
The solution transitions from a one-dimensional perforated tube approach to a three-dimensional chambered structure. By creating multiple expansion chambers between baffles, the design allows gases to expand in multiple directions and volumes while the cylindrical baffle geometry maintains projectile containment without requiring the tube wall thickness that would limit expansion.
4Weight of moving object
If thin and straight baffles are used for non-expanding projectiles, then weight and material usage are minimized, but they are insufficient for expanding projectiles
Solution Approach 1:
The suppressor uses multiple thin cylindrical baffles segmented along the barrel length rather than a single heavy complex baffle. This segmentation distributes the containment function across multiple lightweight components, each with simple cylindrical geometry that effectively manages projectile expansion without requiring excessive material in any single baffle.
Solution Approach 2:
The baffles use cylindrical curvature rather than flat surfaces or complex trumpet shapes. This cylindrical geometry naturally guides and contains expanding projectiles through its rounded surface, effectively managing projectile expansion while maintaining a simple, lightweight structure compared to angular or complexly shaped alternatives.
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 monolithic suppressor effectively limits projectile expansion and enhances gas expansion, reducing noise and wear, while maintaining suppressor durability and performance.
Implementation Method 1
Suppressors use baffles and expansion chambers to reduce the noise emitted by a gun as the projectile exits the gun
Implementation Method 2
The suppressor must therefore limit projectile expansion within the suppressor to prevent the projectile from excessively impacting the baffles in the suppressor
Data Source
AI summary
A suppressor for a gun is compatible with expanding projectiles (e.g., shot shells, pepper balls, bean bags, etc.). The suppressor includes a core configured to attached to a barrel of the gun and extend forward from the barrel. One or more baffles extend radially from an external surface of the core to the housing. A housing generally surrounds the baffle and core. An end cap attaches to a front of the core at the front of the suppressor. The core has slots therethrough in a helical or spiral pattern about a longitudinal axis of the suppressor.