Cyclic Dicarboxylic Acid Fuel Additive for Friction and Rust Control
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Solution Overview
Problem
Existing fuel compositions face challenges in balancing the performance requirements of friction reduction, corrosion inhibition, and lubricity, as adding components to improve one characteristic often negatively impacts others, limiting the number of additives that can be included.
Innovation Solution
A fuel additive package comprising a detergent selected from Mannich, succinimide, polyisobutylene amine, polyetheramine, or quaternary ammonium salt detergents, combined with a multi-functional additive containing a cyclic moiety dicarboxylic acid, and optionally an alkoxylated alcohol, to provide friction modification and corrosion inhibition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple conventional fuel additives are added to improve friction reduction, corrosion inhibition, and lubricity, then the performance characteristics are improved, but the complexity of the additive composition increases and some additives may be detrimental to other characteristics
Solution Approach 1:
The patent combines friction reduction and corrosion protection functions into a single multi-functional additive molecule containing both a friction modifier group (such as long-chain alkyl groups) and a corrosion inhibitor group (such as heterocyclic structures). This merging approach reduces the number of separate additives needed while maintaining both protective functions, directly addressing the contradiction between performance improvement and composition complexity.
Solution Approach 2:
The invention designs additive molecules with multiple functional groups that can simultaneously perform friction reduction, corrosion inhibition, and lubricity enhancement. The multi-functional additive structure allows a single compound to serve multiple protective roles, eliminating the need for separate additives for each function and simplifying the overall composition.
2Reliability
If additional lubricity additives are added to improve fuel pump durability, then lubricity is enhanced, but the number of distinct additive components increases
Solution Approach 1:
The patent integrates lubricity enhancement functionality into the same multi-functional additive molecule that provides friction reduction and corrosion protection. The additive structure includes specific molecular weight ranges and functional groups that contribute to lubricity without requiring separate lubricity additive components.
Solution Approach 2:
The multi-functional additive is designed to simultaneously improve fuel pump durability through enhanced lubricity while also providing friction reduction and corrosion protection. This universal approach allows a single additive component to address multiple reliability concerns in the fuel delivery system.
3Productivity
If friction modifiers are added to reduce friction and improve fuel economy, then acceleration and power are improved, but the additive composition becomes more complex
Solution Approach 1:
The patent merges friction modification functionality with corrosion protection and lubricity enhancement in a single additive molecule. The friction modifier groups (such as long-chain alkyl structures) are integrated into the same molecular framework as the corrosion inhibitor groups, allowing simultaneous achievement of fuel economy improvement and component protection without requiring multiple separate additives.
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 additive package achieves a friction coefficient of 0.4 or less and mean wear scar of 550 μm or less, with reduced rust levels, enhancing engine performance and durability.
Implementation Method 1
a multi-functional additive comprising a cyclic moiety-containing dicarboxylic acid... achieves a friction coefficient of 0.4 or less
Implementation Method 2
friction modifiers may be added to fuel to reduce friction and wear in the fuel delivery systems of an engine
Implementation Method 3
Corrosion inhibitors may also be added in fuel additive package to control/prevent corrosion in storage tanks, facilities, pipelines, and vehicles... reduced rust levels
Data Source
AI summary
The present disclosure provides fuel additives including detergent additives, optional alkoxylated alcohol additives, and a multi-functional additive including a saturated or an unsaturated cyclic moiety-containing dicarboxylic acid.