Electric Field Generator Combustion Flame Propagation Control

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Solution Overview

Problem

Existing methods for enhancing combustion efficiency in internal combustion engines, such as delaying ignition timing or using spark plugs, have limitations in increasing engine output and efficiency while minimizing fuel consumption, and the application of electric fields within combustion chambers to improve fuel efficiency is not effectively utilized.

Innovation Solution

An electric field generating apparatus is integrated into the combustion chamber, comprising an electric field generator, a lead-in wire, a high-voltage generator, and a high-voltage controller, which applies a predetermined voltage to create electric fields that influence flame propagation speed, optimizing engine efficiency and reducing fuel consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If ignition timing is delayed to enhance engine output and efficiency, then combustion efficiency improves, but knock probability increases

Engineering Contradiction:
Improveengine outputVSAvoidknock probability
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent applies electric fields to change the physical parameters of the combustion process, specifically affecting flame propagation speed and combustion timing. By controlling electric field strength and duration, the system can delay ignition timing to improve efficiency while preventing knock through controlled flame behavior, resolving the contradiction between productivity and harmful effects.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If fuel amount is increased to solve reverse effect of ignition delay, then combustion completeness improves, but fuel consumption rate increases

Engineering Contradiction:
Improvecombustion completenessVSAvoidfuel consumption rate
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The patent replaces traditional mechanical combustion control methods with electric field-based control. By using electric fields to directly influence flame propagation and combustion chemistry, the system achieves complete combustion with optimized fuel amounts, eliminating the need to increase fuel consumption to compensate for ignition timing delays.

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

3Reliability

If spark plug characteristics are adjusted to enhance combustion efficiency, then local ionizing effect improves, but the effect is limited to local region only

Engineering Contradiction:
Improvecombustion efficiencyVSAvoidaffected region size
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent transitions from local point-source ignition (spark plug) to volumetric electric field generation. By introducing electric field generators that create distributed electric fields throughout the combustion chamber, the system extends the affected region from a local point to the entire combustion volume, significantly increasing the area where combustion efficiency enhancement occurs.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Productivity

If lean-burn engine is used to enhance flame propagation speed, then fuel consumption rate decreases, but additional substances and management complexity are required

Engineering Contradiction:
Improveflame propagation speedVSAvoidmanagement complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent uses electric fields to naturally enhance flame propagation and combustion efficiency without requiring external chemical additives. The electric fields directly influence the combustion process, enabling lean-burn operation with standard fuel types, thereby reducing management complexity while maintaining high flame propagation speeds and low fuel consumption.

Inventive Principle:
Principle #25Self-service

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 significantly increases engine output and efficiency by controlling flame propagation speed, maximizing overall engine performance and reducing fuel consumption rates across various combustion conditions.

Implementation Method 1

an electric field generator located within a space of the combustion chamber where combustion flames are produced to create electric fields within the space of the combustion chamber through an applied predetermined voltage

Methodology Applied
Scientific EffectElectric field: Electric Field

Data Source

PatentUS9347419B2Electric field generating apparatus for combustion chamber
Publication Date: 2016.05.24 HYUNDAI MOTOR CO LTD
  • US9347419B2 patent drawing
  • US9347419B2 patent drawing
  • US9347419B2 patent drawing

AI summary

An electric field generating apparatus for a combustion chamber, may include an electric field generator located within a space of the combustion chamber where combustion flames may be produced to create electric fields within the space of the combustion chamber through an applied predetermined voltage, a lead-in wire connected to the electric field generator to flow the predetermined voltage to the electric field generator, and a high voltage providing unit connected to the lead-in wire for selectively applying the predetermined voltage to the lead-in wire in accordance with an output signal of a controller generated depending on an operation condition of an engine.