Handheld Oxygen Generator Thermal Management

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Solution Overview

Problem

Conventional portable oxygen generators are bulky, heavy, and generate excessive heat, limiting their use by non-professionals and posing safety concerns for transportation on commercial aircraft due to potential leakage from cabin air pressure.

Innovation Solution

A portable, lightweight hand-held oxygen generating apparatus using potassium super oxide with a container made of aluminum or other lightweight metals, coated with inert polymers, and incorporating graphite or carbon fiber fabrics to regulate moisture and reduce heat, along with a heat-dissipating jacket and a sodium-potassium eutectic alloy to absorb heat, allowing for efficient oxygen production and safe use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional chemical oxygen generators use potassium super oxide to produce oxygen, then oxygen generation efficiency is improved, but heat generation becomes excessive

Engineering Contradiction:

Improveoxygen generation efficiencyVSAvoidheat generation

Core Design Contradiction:

ProductivityVSTemperature

Solution Approach 1:

The patent introduces a heat transfer medium (such as a metal matrix or thermal conductive material) as an intermediary between the potassium super oxide reaction chamber and the user's hand. This intermediary absorbs and dissipates the exothermic heat generated during oxygen production, allowing the chemical reaction to proceed efficiently while preventing excessive heat transfer to the user.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent modifies the physical parameters of the oxygen generator by changing the container material from conventional insulating materials to thermally conductive materials (such as aluminum or other metals). This parameter change in thermal conductivity allows for controlled heat dissipation, maintaining the exothermic reaction efficiency while reducing the temperature at the user interface.

Inventive Principle:

Principle #35Parameter changes

2Strength

If conventional oxygen generators use heavy materials for the container, then structural strength and heat containment are improved, but device weight increases

Engineering Contradiction:

Improvestructural strengthVSAvoiddevice weight

Core Design Contradiction:

StrengthVSWeight of moving object

Solution Approach 1:

The patent employs composite material construction for the container, combining lightweight metals (such as aluminum) with thermal management materials. This composite structure achieves the necessary structural strength and heat dissipation capabilities while maintaining low weight, resolving the contradiction between strength and weight.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent changes the material parameter from heavy conventional materials to lightweight metals, fundamentally altering the density and weight characteristics of the container while maintaining structural integrity through optimized design and material selection.

Inventive Principle:

Principle #35Parameter changes

3Ease of operation

If conventional oxygen generators are designed for portability, then ease of carrying is improved, but heat dissipation becomes insufficient

Engineering Contradiction:

Improveease of carryingVSAvoidheat dissipation

Core Design Contradiction:

Ease of operationVSTemperature

Solution Approach 1:

The patent changes the thermal parameter of the device by using materials with high thermal conductivity (such as aluminum) for the container. This parameter change enables efficient heat dissipation in a compact, handheld form factor, allowing the device to remain portable while effectively managing the exothermic reaction heat.

Inventive Principle:

Principle #35Parameter changes

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 apparatus provides a lightweight, safe, and efficient means of generating oxygen for emergency use, suitable for various applications including athletic and medical purposes, while being non-hazardous and leak-proof, enabling its use on commercial aircraft.

Implementation Method 1

As one breathes into the apparatus, the carbon dioxide and moisture from the breath react with potassium super oxide contained within the apparatus, thus liberating heat and warm dry oxygen.

Methodology Applied

Scientific EffectChemical reaction: Chemical Bonding

Implementation Method 2

one or more graphite or carbon fiber fabrics (4), an inhale filter (13), and an inhale valve (12) that regulates oxygen flow

Methodology Applied

Scientific EffectAbsorption: Absorption (physical)

Implementation Method 3

incorporating graphite or carbon fiber fabrics to regulate moisture and reduce heat, along with a heat-dissipating jacket and a sodium-potassium eutectic alloy to absorb heat

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS8919340B2Hand-held potassium super oxide oxygen generating apparatus

Publication Date: 2014.12.30 BLUM MEL

AI summary

An oxygen generating apparatus that includes a container containing potassium super oxide, an inhale valve, and an inhale valve filter between the potassium super oxide and the inhale valve. The filter is configured to prevent particles having a diameter of 10 μm from passing through the filter, and to neutralize KOH and KO2 particles having a diameter of less than 10 μm that contact the filter into a food grade compound.