Multi-Fuel Combustion Chamber Design for Flexible Heat Generation

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Solution Overview

Problem

Existing heat generation devices are limited by the need to use a single fuel source, lack flexibility in switching between fuels, and require manual intervention and structural changes, which affects user-friendliness, cost, and reliability.

Innovation Solution

A device with multiple feed devices for solid, liquid, and gaseous fuels, allowing for simultaneous or sequential use of fuels without structural changes, using a single ignition device to ignite any fuel, enabling automatic or manual operation and flexible fuel selection based on availability and price.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single fuel source is used in heat generation devices, then the device structure is simple, but the flexibility in fuel selection and switching is poor

Engineering Contradiction:
Improvefuel selection flexibilityVSAvoiddevice structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The combustion chamber is designed with a universal structure that can accommodate and burn multiple types of fuels (solid, liquid, and gaseous) without requiring structural modifications. The chamber includes multiple feed devices for different fuel types and a single ignition device that can ignite any fuel type, enabling one device to perform multiple fuel processing functions.

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

Solution Approach 2:

The device segments the fuel supply system into separate feed devices for solid, liquid, and gaseous fuels, while maintaining a unified combustion chamber. This allows independent control and supply of different fuel types without complicating the overall combustion structure, resolving the contradiction between multi-fuel capability and structural simplicity.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If structural changes are required to switch between fuels, then the device can be optimized for specific fuel types, but the ease of operation and user-friendliness deteriorates

Engineering Contradiction:
Improvefuel switching operationVSAvoidstructural modification requirement
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The device enables dynamic fuel switching without structural changes by incorporating multiple feed devices that can be independently activated or deactivated. Users can switch between fuel types by controlling the feed devices and ignition timing rather than physically modifying the structure, significantly improving operational ease.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The combustion chamber is designed to automatically adapt to different fuel types through its universal structure and control system. The device self-adjusts the combustion process based on the fuel being supplied, eliminating the need for manual structural modifications and making fuel switching as simple as changing the fuel supply source.

Inventive Principle:
Principle #25Self-service

3Productivity

If manual intervention is required for fuel switching, then the device structure can be simpler, but the productivity and efficiency of heat generation deteriorates

Engineering Contradiction:
Improveheat generation efficiencyVSAvoidautomatic fuel switching
Core Design Contradiction:
ProductivityVSExtent of automation

Solution Approach 1:

The device incorporates control systems that monitor fuel supply conditions and combustion status, automatically adjusting the operation of feed devices and ignition timing based on feedback signals. This automated control enables efficient fuel switching without manual intervention, improving productivity while maintaining manageable device complexity through intelligent control algorithms.

Inventive Principle:
Principle #23Feedback

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 flexible and efficient heat generation using various fuels, improving user-friendliness and reducing costs by allowing seamless switching between fuels without manual intervention or structural modifications, ensuring reliable operation.

Implementation Method 1

with the at least one ignition device (5) at least one of the fuels is flammable

Methodology Applied
Scientific EffectIgnition: Combustion

Implementation Method 2

at least one combustion process takes place in the combustion chamber (100)

Methodology Applied
Scientific EffectCombustion: Combustion

Data Source

PatentEP3176517B1Method and device for producing heat
Publication Date: 2021.07.07 FUSS ANDREAS
  • EP3176517B1 patent drawingFigure 1
  • EP3176517B1 patent drawingFigure 2

AI summary

Method and device for generating useful heat, in which the useful heat is generated by a combustion process and any fuel can be burned without structural changes having to be made to the device.