Firearm Sound Suppressor Inner Sleeve Design
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Solution Overview
Problem
Existing sound suppressors for firearms face issues such as difficult disassembly due to adhesive deposits, premature failure under sustained high-pressure conditions, and ineffective muzzle flash reduction, along with cumbersome and prone-to-failure mounting mechanisms.
Innovation Solution
The design incorporates a flexible inner sleeve for easy baffle removal, a rear end flange for secure attachment, a blast deflector to manage radial pressures, and a tapered bore to reduce muzzle flash, along with a slot-and-tab mechanism for improved mounting and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the suppressor is designed with a fixed baffle structure, then the structural integrity is improved, but the ease of cleaning deteriorates due to adhesive deposits making disassembly difficult
Solution Approach 1:
The suppressor is divided into modular sections with baffles that can be independently removed. The segmentation allows the baffle stack to be separated from the housing for easy cleaning of adhesive deposits while maintaining structural integrity when assembled.
Solution Approach 2:
The baffle structure transitions from a completely fixed rigid design to a dynamic configuration where baffles can be selectively removed or repositioned. This allows the structure to adapt between a stable assembled state for operation and a disassembled state for cleaning maintenance.
2Adaptability or versatility
If the suppressor uses traditional threaded mounting, then the adaptability is improved, but the reliability deteriorates due to premature failure under sustained high-pressure conditions
Solution Approach 1:
The mounting system is segmented into a separate mounting ring component that interfaces with both the suppressor housing and the firearm muzzle. This isolation of the mounting function from the pressure-containing structure eliminates stress concentration points that cause threaded joint failure under sustained high-pressure conditions.
Solution Approach 2:
A mounting ring acts as an intermediary component between the suppressor and the firearm. This mediator distributes mechanical loads and isolates the suppressor's pressure-containing structure from mounting stresses, preventing premature failure while maintaining adaptability across different firearm platforms.
3Ease of manufacture
If the suppressor uses a standard cylindrical design, then the manufacturing simplicity is improved, but the effectiveness of muzzle flash reduction deteriorates
Solution Approach 1:
The suppressor incorporates asymmetric features including a non-circular cross-section in certain sections and asymmetric baffle configurations. These asymmetric elements disrupt the coherent structure of muzzle flash light and reduce its intensity more effectively than a standard cylindrical design, while remaining manufacturable using conventional processes.
4Manufacturing precision
If the suppressor uses a complex mounting mechanism, then the alignment precision is improved, but the device complexity increases and reliability decreases due to more failure points
Solution Approach 1:
Asymmetric keyway features and shaped interface geometries provide precise rotational and axial alignment between the suppressor and firearm. These asymmetric mechanical guides achieve accurate positioning through their geometry alone, eliminating the need for complex adjustment mechanisms or multiple alignment features.
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
Enhances the ease of cleaning and maintenance, prevents premature failure, reduces muzzle flash, and provides a reliable and efficient mounting system for the sound suppressor.
Implementation Method 1
a longitudinal split extending through the sidewall and between front and rear ends of the inner sleeve to permit the sidewall to flex to permit removal of the baffle from the inner sleeve
Implementation Method 2
a tapered bore adapted to receive a round fired by a firearm to reduce a muzzle flash
Implementation Method 3
a blast deflector to manage radial pressures
Data Source
AI summary
In one example, a firearm sound suppressor includes a housing, a baffle, and an inner sleeve adapted to be disposed within the housing and to substantially surround the baffle. The inner sleeve includes a sidewall adapted to slide against the housing to permit the inner sleeve with the baffle to be selectively inserted into and removed from the housing without the baffle contacting the housing, and a longitudinal split extending through the sidewall and between front and rear ends of the inner sleeve to permit the sidewall to flex to permit removal of the baffle from the inner sleeve. Other embodiments are also contemplated.