Ester Additive Composition for Ash-Free Lubrication
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Solution Overview
Problem
Existing lubricating oils face challenges in achieving multiple performance characteristics such as wear resistance, friction reducing properties, demulsibility, and metal corrosion resistance without generating ash components, using additives that contain metal components like zinc, phosphorus, and sulfur.
Innovation Solution
A lubricant additive composition comprising specific ester compounds (A) and (B) in a particular mass ratio, combined with zinc dithiophosphate (ZnDTP) in a specific quantitative ratio, is added to a base oil to impart various functions including wear resistance, friction reducing properties, demulsibility, and load bearing capacity, while avoiding the use of metal components and ash generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If zinc dithiophosphate (ZnDTP) is used to impart wear resistance and load bearing capacity, then these functions are improved, but ash components are generated that promote clogging of diesel particulate filter
Solution Approach 1:
The invention extracts and removes the harmful metal components (zinc, phosphorus, sulfur) from the lubricant additive system. By using organic compounds instead of traditional metal-based ZnDTP, the patent eliminates ash generation while maintaining lubrication functions, directly resolving the contradiction between wear resistance and ash production
Solution Approach 2:
The invention changes the chemical composition parameters of the lubricant additive by replacing metal-containing compounds with organic esters and amides. This parameter change maintains the functional properties (wear resistance, friction reduction) while eliminating the harmful ash-generating metal components
2Adaptability or versatility
If multiple additives are combined to impart various functions (wear resistance, friction reduction, demulsibility), then functional versatility is improved, but incompatibility between additives occurs that hampers performance
Solution Approach 1:
The invention applies multi-functionality by designing a single lubricant additive composition that simultaneously provides wear resistance, friction reduction, demulsibility, and corrosion protection. The synergistic combination of organic ester and amide compounds creates one unified system that performs multiple functions without the incompatibility issues of mixed additive systems
Solution Approach 2:
The invention merges multiple lubrication functions into a single additive composition. By combining the wear-protection properties of organic esters with the friction-reducing and demulsifying properties of amide compounds in a unified formulation, the patent achieves functional versatility while ensuring compatibility among all components
Data Source
AI summary
A lubricant additive capable of imparting various functions to a lubricant base oil contains an ester compound (A) represented by formula (1) and an ester compound (B) represented by formula (2). (A):(B) being a mass ratio of the ester compound (A) to the ester compound (B) is 99:1 to 80:20.