Fuel Composition Blend for Synergistic Engine Wear Reduction
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Solution Overview
Problem
Existing fuel compositions do not effectively address the issue of engine wear and friction, despite the use of surface modifiers like alkyl succinates, as they fail to provide a synergistic reduction in wear and friction.
Innovation Solution
A fuel composition comprising a blend of two different monoalkyl alkenyl succinates, each with specific carbon atom ranges, is used to synergistically reduce engine wear beyond the additive effects of individual components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single alkyl succinate is used as a surface modifier, then it provides some wear protection, but the wear reduction effect is insufficient and does not achieve synergistic improvement
Solution Approach 1:
The patent combines two different alkyl succinates (first and second monoalkyl alkenyl succinates) into a blended fuel composition. The synergistic interaction between these two components produces a wear reduction effect greater than the sum of their individual effects, directly resolving the contradiction between adequate wear protection and insufficient wear reduction efficiency.
Solution Approach 2:
The invention creates a composite fuel system by blending two distinct alkyl succinate components with specific structural characteristics. This composite approach allows the components to work together synergistically, achieving superior wear protection and friction reduction that neither component could achieve alone, thus improving both reliability and productivity.
2Adaptability or versatility
If the alkyl chain structure varies or contains side chains, then molecular diversity increases, but the molecules cannot pack closely and protection efficiency decreases
Solution Approach 1:
The patent specifies particular structural characteristics for the two alkyl succinate components, including controlled carbon atom ranges (C4-C8 for the first component and C10-C22 for the second component) and specific structural features. This localized structural optimization ensures that each component has the appropriate properties for effective surface packing and protection, resolving the contradiction between structural diversity and protection efficiency.
3Ease of manufacture
If molecular weight is too low or too high, then synthesis flexibility increases, but the efficiency of protection drastically decreases
Solution Approach 1:
The patent defines specific molecular weight ranges through carbon atom specifications (C4-C8 for the first alkyl succinate and C10-C22 for the second alkyl succinate). This parameter optimization ensures that the components have appropriate molecular weights for effective surface adsorption and film formation, resolving the contradiction between synthesis flexibility and protection efficiency by establishing optimal parameter ranges.
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 a synergistic reduction in engine wear, with wear scar diameters significantly lower than expected, indicating improved wear protection and friction reduction.
Implementation Method 1
Surface modifier components, also known as surfactants or surface active agents, have both a hydrophilic and lipophilic group, which allows the component to be attracted to the metal surface, and yet allow it to be soluble within the hydrocarbon environment
Implementation Method 2
Molecular weight, stereochemical structure and polar group all work together to achieve the efficiency of the protective nature of the molecule. If the alkyl chain varies or contains a side chain so the molecules can't pack closely, or the molecular weight of the molecule is too low or at times too high, the efficiency of the protection will drastically decrease
Data Source
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AI summary
Fuel composition comprising: (i) a base fuel suitable for use in an internal combustion engine; and (ii) a blend of a first monoalkyl alkenyl succinate and a second monoalkyl alkenyl succinate wherein the first monoalkyl alkenyl succinate and the second monoalkyl alkenyl succinate each have the formula (I) or (II) below, or are an isomeric mixture of formula (I) and (II) below: where R is a linear or branched alkenyl group containing from 4 to 30 carbon atoms, and R1 is a linear or branched C1 to C8 alkyl group; and wherein the first monoalkyl alkenyl succinate is different from the second monoalkyl alkenyl succinate. The fuel compositions of the present invention have been found to provide a synergistic reduction in engine wear.