Concentrated Multi-Functional Fuel Additive Package for Diesel Engine Protection
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Solution Overview
Problem
New engine technologies, such as diesel engines with common-rail systems and high-pressure direct fuel injection, are sensitive to fuel quality issues like injector fouling, excessive metal wear, and corrosion, which existing fuel additives fail to address effectively, particularly with low-quality biofuels.
Innovation Solution
A concentrated multi-functional additive package comprising a blend of oxygen-containing compounds, nitrogen-containing compounds, lubricity improvers, solvents, and a compatibilizer mixture, which can be delivered continuously to the engine at a low treat rate, providing coking prevention, deposit protection, lubricity improvement, anti-oxidancy, and corrosion protection across a wide temperature range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a concentrated multi-functional additive package is used, then multiple performance benefits (coking prevention, deposit prevention, lubricity improvement, corrosion protection) are achieved at low treat rates, but the formulation complexity and device complexity increase due to multiple components and compatibility requirements
Solution Approach 1:
The patent combines multiple functional additives (detergent dispersants, anti-wear agents, corrosion inhibitors, lubricity improvers, pour point depressants) into a single concentrated multi-functional package. This merging approach delivers comprehensive engine protection across multiple failure modes while maintaining ease of use through a single additive dosing system, resolving the contradiction between reliability improvement and formulation complexity.
Solution Approach 2:
The additive package is designed to provide universal protection for diesel engines against multiple issues (coking, deposits, wear, corrosion, cold flow problems) simultaneously. The multi-functional nature allows a single additive system to address diverse engine protection needs, achieving high reliability without requiring multiple separate additive systems.
2Ease of operation
If the additive package is delivered continuously from a small tank in a fuel filter, then on-board dosing convenience is improved and consumers are relieved of constantly adding additives, but the dosing system complexity and potential failure points increase
Solution Approach 1:
The on-board dosing system is designed to automatically deliver the additive package from a small tank in the fuel filter without requiring consumer intervention. The system self-regulates the dosing process, providing continuous additive delivery while freeing consumers from manual additive addition, thus improving ease of operation.
Solution Approach 2:
The additive package is pre-formulated and stored in a small tank within the fuel filter before being dosed into the fuel stream. This preliminary positioning and pre-mixing approach enables automatic continuous dosing without requiring consumer action at each fueling event, balancing convenience with controlled system complexity.
3Quantity of substance
If the additive package is highly concentrated to provide multiple benefits at low treat rates, then the amount of additive needed is reduced, but the viscosity and delivery challenges at low temperatures increase
Solution Approach 1:
The additive package formulation includes pour point depressants and viscosity modifiers that enable the highly concentrated additive to maintain appropriate flow and mixing characteristics across a wide temperature range. By adjusting the physical parameters of the additive components, the system achieves both high concentration efficiency and low-temperature deliverability.
Solution Approach 2:
The additive package uses a composite formulation combining multiple functional compounds (succinic acid derivatives, polyisobutylene esters, lubricity improvers, solvents) that work synergistically. This composite approach allows the concentrated package to maintain stability and deliverability across temperatures from -30°C to +70°C while providing multiple engine protection functions at low treat rates.
Data Source
AI summary
The disclosed technology relates to a concentrated multi-functional additive that can be continuously dosed in internal combustion engines.