Thermal Cracker for Liquid Fuel Phase Change

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Solution Overview

Problem

Current engine and fuel systems are limited by their design for specific fuel types, leading to inefficiencies with liquid fuels due to latent heat loss and susceptibility to detonation, while gaseous fuels offer higher efficiency but pose storage and availability challenges.

Innovation Solution

A system that converts any combustible liquid into a consistent gaseous fuel by pressurizing, heating, and using catalysts to break it down into simpler molecular structures, allowing for a homogeneous charge and efficient engine operation without the need for complex fuel delivery systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If liquid fuels are used in engines, then fuel availability and infrastructure are improved, but latent heat loss and susceptibility to detonation increase

Engineering Contradiction:
Improvefuel availabilityVSAvoidlatent heat loss
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The patent changes the physical state parameter of the fuel from liquid to gas through heating and pressurization processes. This phase change eliminates latent heat loss associated with liquid fuel evaporation while maintaining fuel availability through infrastructure-compatible storage and delivery systems.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The system utilizes phase transition by heating liquid fuel to its critical point and then expanding it to form a gas. This phase change allows the fuel to mix homogeneously with air without the energy loss associated with evaporation of liquid droplets, directly addressing the latent heat loss problem.

Inventive Principle:
Principle #36Phase transitions

2Device complexity

If liquid fuels are used in engines, then fuel delivery infrastructure is simplified, but engine efficiency and compression ratio are reduced

Engineering Contradiction:
Improvefuel delivery infrastructureVSAvoidengine efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent performs preliminary action by converting liquid fuel to gas phase before engine intake through heating and pressurization. This pre-processing eliminates the need for complex injection systems while producing a homogeneous charge that enables higher compression ratios and improved engine efficiency.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system replaces complex mechanical fuel injection systems with a thermal processing approach. By using heat and pressure to vaporize and homogenize the fuel before intake, the patent eliminates carburetors and injectors while achieving better mixing and combustion efficiency.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If gaseous fuels are used in engines, then engine efficiency and compression ratio are improved, but storage and transportation complexity increase

Engineering Contradiction:
Improveengine efficiencyVSAvoidstorage and transportation
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent changes the storage parameter by maintaining fuel in liquid form for storage and transportation, then converting to gas phase only at the point of use through heating and pressurization. This approach combines the storage advantages of liquids with the combustion advantages of gases without requiring complex pressurized storage systems.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The system uses a thermal processing chamber as an intermediary between fuel storage and engine intake. This intermediary device converts liquid fuel to gas phase on-demand, eliminating the need for complex pressurized storage and transportation infrastructure while maintaining the efficiency benefits of gaseous fuel combustion.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Device complexity

If liquid fuels are used in engines, then fuel storage is simplified, but homogeneous charge and detonation resistance are reduced

Engineering Contradiction:
Improvefuel storageVSAvoiddetonation resistance
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent applies phase transition by heating liquid fuel to its critical point and expanding it to form a gas before engine intake. This phase change creates a homogeneous charge that resists detonation while maintaining simple liquid fuel storage, as the conversion to gas phase occurs only during the intake process.

Inventive Principle:
Principle #36Phase transitions

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

Enables engines to run at higher compression ratios and increased efficiency, simplifies fuel delivery, and allows the use of various fuels, including waste materials, while eliminating the need for throttle plates and complex carburetors.

Implementation Method 1

the fuel is heated via waste heat from the engine and active heat sources such as induction coils, resistant heaters

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

This phase changes the fuel into a different state of matter called a supercritical fluid

Methodology Applied
Scientific EffectPhase change: Phase Change

Implementation Method 3

Catalysts packed inside the supercritical fluid tank to promote faster, less energy intensive, and more efficient breakdown of the fuel into simpler and smaller molecular structures

Methodology Applied
Scientific EffectCatalysis: Catalysis

Implementation Method 4

This is achieved by first pressurizing the fuel using a high pressure fuel pump

Methodology Applied
Scientific EffectCompression: Compression

Implementation Method 5

Because the vapor accumulation tank is under considerably less pressure this causes a phase change to a gaseous state when the supercritical fluid enters the vapor accumulation tank

Methodology Applied
Scientific EffectPhase change: Phase Change

Data Source

PatentUS11808237B2Thermal cracker for combustible and flammable liquids for engines
Publication Date: 2023.11.07 HUDDLESTON SKY MOON
  • US11808237B2 patent drawing

AI summary

The present invention relates to a combination of components suitable to break down liquid fuels into short chain molecules and gaseous states of matter by heating and pressurizing the combustible/flammable liquids to the point where they phase change into a supercritical fluid, then releasing some fluid as needed into a vapor accumulation tank that has a lower pressure. This subsequent drop in pressure phase changes the fluid from a supercritical state into a consistent and safe gaseous state. From there, the fuel can be delivered to the engine via direct injectors, gaseous fuel carburetors, or a regulating valve such as a needle valve. Because gaseous fuels readily homogenize with intake air and oxidizers, the present invention allows any engine to cleanly, reliably, and consistent use any fuel without adjustment. This allows any engine to run off any combustible liquid, in effect creating the ultimate multifuel system.