Multi-Electrode Spark Gap Fuel Injector Ignition
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Solution Overview
Problem
Existing fuel injection systems face challenges in efficiently igniting lower octane or bio-fuels in spark ignition engines, leading to issues like 'ping' or 'knock,' which can result in engine wear and increased emissions, particularly in aviation applications where lead is being phased out, and bio-fuels may require ignition aids to maintain performance.
Innovation Solution
A multiple electrode spark gap fuel injector with at least one pair of conductors having corresponding conductor ends radially and axially located in relation to the fuel dispersion pattern, generating an electrical current to enhance ignition efficiency across a gap between conductor ends, improving fuel combustion and ignition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fuel injection systems are used with lower octane or bio-fuels, then fuel efficiency and emissions control are compromised, but adding ignition aids increases device complexity
Solution Approach 1:
The patent combines the fuel injection system and ignition system into a single integrated device. The multi-electrode spark gap injector merges the functions of fuel delivery and ignition enhancement in one component, eliminating the need for separate ignition aids while improving reliability with lower octane and bio-fuels
Solution Approach 2:
The fuel injector is designed to perform multiple functions: it delivers fuel through its injection function and simultaneously enhances ignition through its multi-electrode spark gap function. This multi-functionality allows a single device to address both fuel delivery and ignition reliability issues
2Productivity
If multiple electrode spark gap is added to fuel injector, then ignition efficiency is improved, but device complexity increases
Solution Approach 1:
The multi-electrode spark gap mechanism is nested within the existing fuel injector structure. The electrodes are positioned inside the injector body, utilizing the existing housing and mounting features, which minimizes additional complexity while achieving improved ignition efficiency
Solution Approach 2:
The injector employs multiple electrodes arranged in a specific configuration rather than a single electrode. This segmentation of the ignition function into multiple electrodes creates multiple spark gaps that collectively improve ignition efficiency while distributing the complexity across several simpler components
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 solution significantly increases the efficiency of fuel ignition and combustion, reducing engine wear and emissions by optimizing the placement of conductor ends in relation to the fuel dispersion pattern, thereby improving the performance of lower octane and bio-fuels in spark ignition engines.
Implementation Method 1
at least one pair of electrodes having a corresponding pair of electrode ends radially and axially located in relation to an amount of dispersed fuel to increase efficiency of ignition upon discharge of an electrical current across a gap
Data Source
AI summary
Generally, a multiple electrode spark gap fuel injector and methods of utilizing a multiple electrode spark gap fuel injector for internal combustion engines. Specifically, at least one pair of electrodes having a corresponding pair of electrode ends radially located and axially located in relation to an amount of dispersed fuel to increase efficiency of fuel combustion.