Muzzle Device With Equal Bore And Tunable Screws

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Solution Overview

Problem

Existing muzzle attachments lose propellant gas pressure and flow rate due to internal expansion chambers and lack of additional vents, reducing recoil compensation and accuracy.

Innovation Solution

A muzzle device with a central bore of equal diameter to the barrel, featuring rearwardly angled apertures and external chamfers for directed gas expansion, and tunable apertures with adjustable screws for controlled gas expulsion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If internal expansion chambers are used in muzzle attachments, then gas expansion and redirection occur, but pressure and flow rate of propellant gas are reduced

Engineering Contradiction:

Improverecoil compensationVSAvoidpropellant gas pressure

Core Design Contradiction:

ForceVSStress or pressure

Solution Approach 1:

The muzzle attachment is divided into multiple separate aperture structures rather than using a single internal expansion chamber. The central bore and multiple apertures are segmented throughout the device, allowing gas to expand and redirect through multiple pathways simultaneously, maintaining pressure while achieving recoil compensation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention transitions from two-dimensional internal expansion chambers to a three-dimensional structure with apertures distributed throughout the volume. The rearwardly angled apertures create multiple expansion dimensions, allowing gas to redirect in various directions simultaneously, maintaining pressure while achieving comprehensive recoil compensation.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Ease of operation

If traditional grub screws are used for adjusting gas release, then aperture adjustment is possible, but additional vents are absent reducing precision and recoil compensation

Engineering Contradiction:

Improveaperture adjustabilityVSAvoidrecoil compensation

Core Design Contradiction:

Ease of operationVSForce

Solution Approach 1:

The adjustable aperture mechanism serves multiple functions: it controls gas release timing, adjusts aperture size, and the hollowed screw structure itself acts as an additional vent. This multi-functional design eliminates the need for separate adjustment mechanisms while enhancing recoil compensation through the combined effect of the screw vent and main apertures.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The hollowed interior portion of the adjustment screw creates a porous-like structure with multiple venting pathways. Gas can escape through the hollowed screw interior and around the screw threads, creating multiple flow paths that enhance precision control and recoil compensation simultaneously.

Inventive Principle:

Principle #31Porous materials

3Volume of stationary object

If muzzle device has larger external diameter, then gas expansion space increases, but access to other barrel components becomes difficult

Engineering Contradiction:

Improvegas expansion volumeVSAvoidaccess to barrel components

Core Design Contradiction:

Volume of stationary objectVSEase of operation

Solution Approach 1:

The muzzle device concentrates gas expansion functionality in specific localized regions through strategically positioned apertures rather than requiring uniform expansion throughout a large volume. The rearwardly angled apertures create localized expansion zones that provide effective recoil compensation while maintaining a compact external diameter for easy component access.

Inventive Principle:

Principle #3Local quality

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

Maintains higher propellant gas pressure and velocity, allowing for improved recoil compensation and accuracy while allowing access to other firearm components without removal.

Implementation Method 1

rearwardly angled from the central bore of the muzzle device to the external surface of the muzzle device... enable the expelled gas to have directed expansion of the propellant gas such that additional pressure is exerted on the external surface of the muzzle device

Methodology Applied

Scientific EffectGas redirection and pressure exertion: Pressure Gradient

Implementation Method 2

Previous muzzle attachments employ an internal expansion chamber, i.e. a muzzle attachment with interior chambers that are significantly wider than the diameter of the central bore. These interior chambers allow propellant gases to expand within the muzzle attachment before being expelled from apertures on the external surface

Methodology Applied

Scientific EffectGas expansion: Pressure Gradient

Data Source

PatentUS10801797B2Muzzle device

Publication Date: 2020.10.13 CHENG JUSTIN PEIJAY

AI summary

The present invention is of a muzzle device that is either permanently fixed or releasably attached to the end of the barrel of a firearm. The muzzle device may have a configuration that reduces the loss of pressure and flow rate of the propellant gas by employing a central bore having approximately the same diameter as the bore of the barrel. The muzzle device may further have apertures with inserted adjustable screws with hollow interior portions for tuning the degree of propellant gases in various directions away from the muzzle device. The external diameter of the muzzle device may also have substantially the same diameter as the external diameter of the barrel to allow for access to firearm components without having to remove the muzzle device from the end of the barrel.