Asymmetrical Heat Control Shell for Firearm Thermal Mirage Reduction

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Solution Overview

Problem

Thermal mirages caused by hot air plumes from firearms and their attachments distort the target image, making accurate long-range shooting difficult, as existing solutions like insulating covers and heat sinks either trap heat or transfer it too quickly, leading to overheating and mirage issues.

Innovation Solution

A thermal mirage reducing device with a heat control shell having an asymmetrical cross-sectional profile that directs heat away from the line of sight, featuring a core portion and a heat-directing portion that protrudes to a high point laterally offset from the vertical plane, preventing hot air plumes from intersecting the line of sight.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If insulating covers are used to slow heat transfer, then thermal mirage effects are reduced, but the suppressor becomes excessively hot leading to potential damage

Engineering Contradiction:

Improvethermal mirage effectVSAvoidsuppressor temperature

Core Design Contradiction:

Object-affected harmful factorsVSTemperature

Solution Approach 1:

The heat control shell employs an asymmetrical cross-sectional profile with a heat-directing portion that protrudes on one side of the vertical plane to a high point laterally offset from the vertical plane. This asymmetric geometry redirects hot air away from the line of sight while maintaining balanced heat distribution across the suppressor surface, preventing localized overheating.

Inventive Principle:

Principle #4Asymmetry

Solution Approach 2:

The invention introduces a lateral dimension to heat management by offsetting the heat-directing portion from the vertical plane. Instead of merely vertical heat dissipation, the asymmetrical profile directs heat laterally away from the line of sight, creating a three-dimensional heat management solution that simultaneously addresses both mirage reduction and temperature control.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Temperature

If heat sinks are used to increase heat transfer rate, then suppressor overheating is prevented, but thermal mirage effects become more severe

Engineering Contradiction:

Improvesuppressor temperatureVSAvoidthermal mirage effect

Core Design Contradiction:

TemperatureVSObject-affected harmful factors

Solution Approach 1:

The heat control shell applies partial heat transfer enhancement by directing heat away from the line of sight rather than maximizing overall heat transfer. The asymmetrical profile with its heat-directing portion provides sufficient heat management to prevent mirage effects without the excessive heat transfer that would cause severe thermal plumes.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The invention applies local quality by creating different thermal management zones on the suppressor surface. The heat-directing portion concentrates heat redirection functionality in specific lateral regions, while other areas maintain normal heat dissipation, allowing localized control of thermal plume formation without compromising overall temperature management.

Inventive Principle:

Principle #3Local quality

3Ease of manufacture

If symmetrical heat control profiles are used, then manufacturing is simpler, but heat direction away from line of sight is less effective

Engineering Contradiction:

Improveheat control shell manufacturingVSAvoidthermal mirage effect

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

Inventive Principle:

Principle #4Asymmetry

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

Effectively reduces thermal mirage effects by redirecting hot air away from the shooter's line of sight, improving accuracy for snipers and other shooters by minimizing distortion and preventing overheating, while allowing for efficient heat transfer.

Implementation Method 1

hot air from the barrel or muzzle attachment rises and creates a thermal mirage in front of the sights or optical scope of the firearm

Methodology Applied

Scientific EffectThermal convection: Convection

Implementation Method 2

Thermal mirage effect, also called heat haze or heat shimmer, refers to the tendency of objects to appear blurry or wavy when viewed through hot air

Methodology Applied

Scientific EffectThermal mirage effect: Mirage (photothermal deflection)

Data Source

PatentUS9435600B2Thermal mirage reduction accessory for firearms

Publication Date: 2016.09.06 HUXWRX SAFETY CO LLC

AI summary

A thermal mirage reducing device for firearms is disclosed and described. The thermal mirage reducing device includes a heat control shell oriented along a horizontal longitudinal axis corresponding to a bore line of a firearm. A cross-sectional profile of the heat control shell taken perpendicular to the longitudinal axis is asymmetrical about a vertical plane dividing the heat control shell along the longitudinal axis. The cross-sectional profile has a heat-directing portion protruding on one side of the vertical plane. The heat-directing portion extends to a high point that is vertically higher than any other point in the cross-sectional profile and laterally offset from the vertical plane. The cross-sectional profile does not intersect the line of sight of the firearm.