Firearm Barrel Stiffening via Segmented Hollow Tubes
Solution Overview
Problem
Firearm barrels are heavy and inefficient at dissipating heat due to their solid structure, which affects their stiffness, accuracy, and handling, as well as leading to overheating with repeated use.
Innovation Solution
The introduction of hollow tubes along the longitudinal axis of the barrel increases torsional and sinusoidal stiffness and enhances cooling by increasing the surface area, allowing for ventilation through a Venturi effect and exterior surface finishes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If solid barrel structure is used, then strength and stiffness are improved, but weight increases and heat dissipation efficiency deteriorates
Solution Approach 1:
The barrel is segmented into multiple longitudinal sections with individual reinforcement elements (ribs or straps) attached to the outer surface. This segmentation allows each reinforcement element to independently strengthen specific areas of the barrel without requiring a completely solid structure, thereby reducing overall weight while maintaining necessary strength.
Solution Approach 2:
The barrel employs a composite structure combining the base tubular material with additional reinforcement materials in the form of ribs or straps. This composite approach optimizes the strength-to-weight ratio by using materials and configurations that provide maximum structural support with minimum added weight.
2Strength
If solid barrel structure is used, then structural integrity is improved, but heat dissipation efficiency deteriorates
Solution Approach 1:
The barrel surface is segmented into multiple sections with spaced reinforcement elements, creating channels or pathways between the ribs/straps that facilitate heat dissipation. This segmentation maintains structural integrity while improving thermal management through enhanced surface area and potential fluid flow paths.
Solution Approach 2:
The barrel structure incorporates a porous or lattice-like reinforcement configuration that provides structural support while allowing improved heat dissipation through the interconnected void spaces. This porous structure enables better thermal management compared to a completely solid construction.
3Stability of the object's composition
If barrel diameter is increased to improve stiffness, then torsional and sinusoidal stiffness are improved, but weight increases
Solution Approach 1:
The barrel is segmented with longitudinal reinforcement elements (ribs or straps) that increase torsional stiffness without requiring an increase in overall barrel diameter. These segmented reinforcement elements effectively stiffen the barrel structure while minimizing weight addition compared to a solid larger-diameter barrel.
Solution Approach 2:
Instead of increasing stiffness by increasing diameter (one dimension), the invention adds reinforcement elements in another dimension (surface-mounted ribs or straps). This dimensional approach increases torsional and sinusoidal stiffness without proportionally increasing weight, as the reinforcement is added as surface features rather than requiring a larger overall structure.
4Ease of manufacture
If solid barrel structure is used, then manufacturing simplicity is improved, but heat dissipation capability deteriorates
Solution Approach 1:
The barrel manufacturing process is segmented into steps that add reinforcement elements to a tubular structure, which can be done through various methods (attachment, integration, or forming). This segmented approach maintains manufacturing simplicity while significantly improving heat dissipation capability through increased surface area and potential fluid flow channels.
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 results in a stiffer, lighter barrel with improved cooling capabilities and accuracy, reducing weight while maintaining performance over time.
Implementation Method 1
enhances cooling by increasing the surface area, allowing for ventilation through a Venturi effect
Implementation Method 2
enhances cooling by increasing the surface area
Implementation Method 3
allowing for ventilation through a Venturi effect
Data Source
AI summary
A barrel having a body including an elongate tubular structure extending from a breach end to a muzzle end; a projectile bore extending from a projectile chamber to the muzzle end; and a one or more tubular recesses formed in the body, wherein each tubular recess is defined by an elongate hole extending from an open end formed in an area proximate the muzzle end.