Mannich-Polyetheramine Fuel Additive for Deposit Removal
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Solution Overview
Problem
Internal combustion engines with high service mileage or run on low-tier fuel with minimal deposit control performance suffer from deposits in intake valves and combustion chambers, affecting combustion performance, emissions, and fuel economy.
Innovation Solution
A fuel additive composition comprising a Mannich reaction product of a hydrocarbyl-substituted phenol and a polyetheramine, combined with a hydrocarbon solvent and optional additional additives, is used to prevent and remove deposits from intake valves and combustion chambers, with a weight ratio of Mannich reaction product to polyetheramine ranging from 1:4 to 10.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional detergent additives are used in fuel compositions, then deposit control performance is provided, but the effectiveness is insufficient for high mileage engines or engines running on low-tier fuel
Solution Approach 1:
The patent combines Mannich detergent with polyetheramine fluidizer in a specific weight ratio (1:4 to 10) to create a composite additive system. This composite approach allows the mixture to achieve superior deposit control performance in both intake valves and combustion chambers, while maintaining fuel economy, overcoming the limitations of conventional single-component detergents in high mileage or low-tier fuel scenarios
2Reliability
If intake valve deposits are removed, then combustion performance improves, but combustion chamber deposits also need to be addressed for complete performance restoration
Solution Approach 1:
The Mannich detergent-polyetheramine fluidizer combination serves multiple functions simultaneously: it acts as a detergent for deposit removal, a fluidizer for low-temperature flow improvement, and provides comprehensive protection for both intake valves and combustion chambers. This multi-functionality eliminates the need for separate additive packages, simplifying the overall system while achieving complete deposit control
Data Source
AI summary
A fuel additive composition comprises (a) a Mannich reaction product and (b) a polyetheramine where the weight ratio on an actives basis of component (a) to component (b) is 1:4-10. A fuel composition and a method for removing intake valve deposits and combustion chamber deposits in a spark-ignited internal combustion engine comprise the fuel additive composition which is very effective in removing the deposits.