Integrally Suppressed Firearm with Segregated Expansion Chambers
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Solution Overview
Problem
Traditional firearm suppressors increase the length and weight of guns, leading to poor balance and potential issues like backpressure and baffle strikes, while failing to effectively reduce noise and recoil without significantly increasing the gun's acoustic signature.
Innovation Solution
A novel suppressor design utilizing segregated expansion chambers within a tubular structure, featuring baffles with holes to redirect and cool propellant gases, ensuring the bullet does not contact the baffle system and maintaining the gun's balance by not extending its length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a traditional suppressor is fitted to the end of a gun barrel, then the acoustic signature is reduced, but the firearm length increases and balance is impaired
Solution Approach 1:
The suppressor mechanism is nested within the existing barrel structure by creating internal expansion chambers inside the barrel wall thickness. The barrel wall is configured with multiple chambers that expand propellant gases internally, eliminating the need for an external suppressor tube while maintaining noise reduction functionality.
Solution Approach 2:
The suppressor function is moved from the external longitudinal dimension to the internal radial dimension of the barrel wall. By utilizing the wall thickness to create expansion chambers, the solution transforms the spatial arrangement from an external extension to an internal integration, reducing overall firearm length.
2Object-affected harmful factors
If a traditional suppressor is fitted to the end of a gun barrel, then the acoustic signature is reduced, but the firearm weight increases and balance is impaired
Solution Approach 1:
The suppressor functionality is merged with the barrel structure itself. The barrel wall is designed to incorporate expansion chambers, combining the structural function of the barrel with the noise reduction function of a suppressor, thereby eliminating the need for separate suppressor components that would add weight.
Solution Approach 2:
The barrel wall serves multiple functions simultaneously: it provides structural support, contains the projectile, and houses the expansion chambers for noise reduction. This multi-functionality eliminates the need for dedicated suppressor components, reducing overall firearm weight.
3Object-affected harmful factors
If traditional suppressor design is used, then noise suppression is achieved, but backpressure and baffle strikes occur
Solution Approach 1:
Different regions of the barrel wall are configured with specific chamber characteristics optimized for their local function. The expansion chambers are strategically positioned and sized to manage gas flow at different stages of projectile travel, reducing backpressure while preventing baffle strikes through localized flow control.
Solution Approach 2:
The internal chamber configuration allows dynamic adaptation to the expanding gas flow as the projectile travels down the barrel. The chambers are designed to progressively manage increasing gas pressure and velocity, optimizing noise suppression at each stage while maintaining reliable operation without backpressure or baffle strikes.
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 suppressor effectively reduces the acoustic signature of a gunshot, minimizes recoil, and prevents baffle strikes by allowing controlled expansion and cooling of propellant gases, resulting in a more balanced and quieter firearm operation.
Implementation Method 1
The rapidly expanding gasses of the ignited gunpowder, having driven the bullet at a predetermined velocity, exit the barrel under extreme pressure. A sudden release of expanding gasses from the exit of the barrel causes a loud 'bang'
Implementation Method 2
The suppressor is typically made of metal, such as, e.g., steel, aluminum, or titanium, that can withstand the heat associated with the propellant gasses. The internal components are typically a set of flat disks each having a hole through a center portion with spacers to create a volume of space, referred to as a baffle chamber, between each set of disks. The baffle chambers serve to control, delay, and divert the flow and expansion of propellant gasses, and to reduce temperature and entropy as the gasses ultimately exit the device.
Implementation Method 3
One part of the recoil is due to the extremely high velocity of the exhaust gas from the gun's unsuppressed barrel, e.g. Newton's Third Law. The other part is the bullet's mass acceleration.
Data Source
AI summary
Methods and systems for limiting the sudden expansion of propellant gasses, products of combustion when firing a gun, exiting a barrel of a gun, which otherwise would result in a very loud noise, sharp “recoil” of the gun, and a pronounced “muzzle flash” if released unrestricted. By utilizing two or more completely segregated, or partially segregated, expansion chambers, the gasses can be allowed to sequentially expand and cool under tightly controlled conditions governed by the size and location of holes, or passageways, in the barrel which communicate with the interior of the expansion tube that encompasses the barrel. The expanding gasses are further controlled by the locations and volumes of each segregated expansion chamber, and holes in the structural vertical and horizontal bulkheads of the expansion tube, which can “steer” the gasses in order to achieve easy expansion as well as gas flow disruption goals by design.