Fuel Composition Additives for Faster Flame Speed and Power
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fuel compositions do not effectively enhance flame speed, burn duration, power output, and acceleration performance in internal combustion engines without affecting ignition delay time (IDT).
Innovation Solution
A fuel composition comprising a base fuel, a tetraalkylethane compound, and an alkylbenzene compound is used to improve flame speed, burn rate, and power output, while maintaining ignition delay time (IDT).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional fuel compositions are used, then ignition delay time is maintained, but flame speed is insufficient and burn duration is prolonged
Solution Approach 1:
The patent applies parameter changes by modifying the chemical composition parameters of the fuel through the addition of specific additives (tetraalkylethane compound with aryl groups and alkylbenzene compound). These compositional parameter changes directly increase flame speed and reduce burn duration, resolving the contradiction between maintaining ignition delay time and improving combustion rate.
Solution Approach 2:
The patent uses composite materials by combining the base fuel with two specific additive compounds (tetraalkylethane compound having aryl groups and alkylbenzene compound). This composite fuel formulation achieves synergistic effects where the combination of additives produces faster flame speed and shorter burn duration than conventional single-component additives, while maintaining optimal ignition delay time.
2Power
If ignition delay time is increased to optimize spark timing, then combustion efficiency improves, but power output and acceleration are reduced
Solution Approach 1:
The patent changes the combustion parameters by introducing specific chemical additives that decouple the relationship between ignition delay time and combustion rate. The tetraalkylethane compound with aryl groups and alkylbenzene compound modify the combustion chemistry to achieve faster flame propagation without extending ignition delay, thereby increasing power output while maintaining optimal ignition timing.
Solution Approach 2:
The patent applies dynamics by enabling independent control of different combustion phases. The additive combination dynamically adjusts the combustion process to maintain optimal ignition delay time for spark timing while simultaneously increasing flame speed for improved power output, creating a dynamic optimization of the combustion cycle.
3Power
If flame speed is increased to improve power output, then acceleration performance improves, but fuel economy deteriorates
Solution Approach 1:
The patent applies parameter changes by using specific additive compounds (tetraalkylethane with aryl groups and alkylbenzene) that increase flame speed and acceleration performance while maintaining fuel economy. The chemical structure parameters of these additives are optimized to achieve faster combustion without excessive energy consumption, resolving the contradiction between power output and fuel efficiency.
Solution Approach 2:
The patent applies the skipping principle by using the additive combination to rush through the combustion process more efficiently. The tetraalkylethane compound with aryl groups and alkylbenzene compound enable the flame to propagate faster through the combustion chamber, completing the power stroke more quickly and improving acceleration while maintaining overall fuel economy through more efficient energy conversion.
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 fuel composition achieves increased flame speed, reduced burn duration, improved power output, and enhanced acceleration performance without altering IDT, providing measurable improvements of up to 10% in each parameter.
Implementation Method 1
if the fuel is modified so that the ignition delay time increase is caused by inhibition of the chemical radical reactions that occur before the spark, and a shift of these same reactions further up the temperature/pressure trajectory of the cycle to occur after the spark
Implementation Method 2
Laminar burning velocity (also referred to as 'flame speed') is a fundamental combustion property of any fuel/air mixture
Data Source
AI summary
Fuel composition comprising: (a) a base fuel suitable for use in an internal combustion engine; (b) a tetraalkylethane compound having the formula (I): wherein Ar represents an aryl group and each X is independently selected from a hydrogen atom, substituted or unsubstituted, straight chain or branched C1-C12 alkyl group, (CH2)nOH or (CH2)nNH2, wherein n is in the range of 1 to 9, provided that at least one of the X groups in each CX3 group is a hydrogen atom; and c) an alkylbenzene compound having the formula (II) wherein each R1-R6 group is independently selected from hydrogen and a C1-C15 alkyl group, wherein at least one of the R1-R6 groups is a C1-C6 alkyl group. The fuel composition of the present invention provides improved power and acceleration benefits, as well as increased flame speed and burn duration.