Suppressor Heat Shield Vacuum Insulation and Airflow Cooling

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Solution Overview

Problem

Conventional suppressors for firearms generate high heat during firing, leading to inefficient heat dissipation and potential damage, especially when covered to reduce the heat signature or protect users from burns.

Innovation Solution

A suppressor heat shielding system comprising a support ring with mateable elements, a cylindrical heat shield with a sealed cavity creating a vacuum, and gas apertures to facilitate airflow for thermal dissipation, reducing heat transfer and providing effective cooling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a fabric cover is placed over the suppressor to reduce the heat signature or protect the user from burns, then user safety and heat signature reduction are improved, but heat dissipation efficiency deteriorates

Engineering Contradiction:
Improveheat signature and burn riskVSAvoidheat dissipation efficiency
Core Design Contradiction:
Object-affected harmful factorsVSLoss of energy

Solution Approach 1:

The patent introduces a heat shield as an intermediary component between the suppressor and the fabric cover. This heat shield actively manages thermal energy through vacuum insulation and airflow channels, mediating the conflict between needing thermal protection (for the fabric cover) and heat dissipation (for the suppressor). The heat shield allows the fabric cover to remain in place for protection while preventing it from trapping harmful heat levels.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent creates a vacuum environment within the heat shield cavity, removing air molecules that would otherwise conduct heat. This inert (vacuum) environment acts as an effective thermal barrier, allowing the system to maintain protective coverage while minimizing heat transfer to the outer fabric cover, thus resolving the contradiction between protection and heat dissipation.

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

2Illumination intensity

If the suppressor is covered to reduce heat signature, then detectability is reduced, but heat buildup increases

Engineering Contradiction:
Improveheat signature detectabilityVSAvoidsuppressor heat buildup
Core Design Contradiction:
Illumination intensityVSTemperature

Solution Approach 1:

The patent segments the thermal management system into distinct functional zones: an inner vacuum insulation layer for immediate heat blocking, middle airflow channels for active heat removal, and an outer fabric cover for signature reduction. This segmentation allows each layer to address specific aspects of the contradiction without interfering negatively with others.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent incorporates airflow channels that utilize pneumatic principles to actively move heat away from the suppressor. Air flows through designated pathways, carrying thermal energy from the hot suppressor surface through the heat shield structure, thereby preventing heat buildup while allowing the outer cover to maintain low detectability.

Inventive Principle:
Principle #29Pneumatics and hydraulics

3Loss of energy

If a heat shield structure is added to improve heat dissipation, then heat management improves, but device complexity increases

Engineering Contradiction:
Improveheat dissipation efficiencyVSAvoidsuppressor structure complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The patent employs a nested structure where the vacuum insulation cavity is contained within the heat shield, which in turn is integrated with the suppressor body. The airflow channels are embedded within the heat shield walls. This nesting approach consolidates multiple heat management functions into a compact integrated structure, improving heat dissipation while minimizing the increase in overall device complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The heat shield structure serves multiple functions simultaneously: it provides vacuum insulation for thermal blocking, contains airflow channels for active cooling, and interfaces with the fabric cover for protection. This multi-functionality reduces the need for separate components, thereby improving heat management without proportionally increasing device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 system significantly reduces heat buildup and heat signature, minimizing the risk of damage to the suppressor and enhancing user safety by efficiently dissipating heat through airflow and thermal barriers.

Implementation Method 1

A vacuum is created within the heat shield cavity. By including a vacuum within the heat shield cavity, a thermal or heat transfer barrier is created between the interior surface and the exterior surface of the suppressor heat shield.

Methodology Applied
Scientific EffectVacuum insulation: Vacuum

Implementation Method 2

Gas apertures are formed through the heat shield cap. Thus, air is able to flow through the internal cavity of the suppressor heat shield, via the support ring air gaps and the gas apertures of the heat shield cap. By allowing air to flow through the heat shield cavity, heat that becomes built up within the heat shield cavity is able to radiate through the support ring air gap and the gas apertures to the exterior environment of the suppressor heat shield.

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentUS11150045B1Suppressor heat shielding system
Publication Date: 2021.10.19 OGLESBY PAUL A
  • US11150045B1 patent drawing
  • US11150045B1 patent drawing
  • US11150045B1 patent drawing

AI summary

A suppressor heat shielding system, including at least some of a suppressor heat shield having an internal cavity sized to allow at least a portion of a suppressor to be at least partially contained therein, wherein a sealed heat shield cavity is formed between at least a portion of an interior surface and at least a portion of an exterior surface of the suppressor heat shield, and wherein a vacuum is created within the heat shield cavity; an externally threaded support ring attached or coupled to a first end of the suppressor heat shield, wherein one or more support ring air gaps are formed through the support ring element; a heat shield cap having one or more gas apertures formed therethrough abutted against a second end of the suppressor heat shield; and a heat shield nut abutted against at least a portion of the heat shield cap.