Nitrogen-Boron Mixed Borate Ester Friction Modifiers
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Solution Overview
Problem
Existing lubricant technologies for diesel engines fail to effectively address friction modification and fuel economy, as friction reducers used in passenger car engines lead to wear issues when applied in diesel engines.
Innovation Solution
A lubricating oil composition containing a reaction product of a nitrogen-containing reactant, a source of boron, and a hydrocarbyl polyol with at least three hydroxyl groups, specifically designed to reduce friction in internal combustion engines, with a ratio of 1:0.2:0.2 to 1:2.5 for the reactants, forming a mixed borate ester that improves fuel economy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If friction modifiers used in passenger car engines are applied in diesel engines, then friction reduction is achieved, but wear issues occur
Solution Approach 1:
The patent modifies the chemical structure of friction modifiers by changing parameters such as incorporating nitrogen-containing compounds, adjusting molecular weight, and modifying the chemical composition to create a formulation that reduces friction while maintaining wear protection in diesel engines
Solution Approach 2:
The patent creates a composite friction modifier system by combining multiple chemical components including nitrogen-containing reactants, boron compounds, and hydrocarbyl polyols to achieve both friction reduction and wear protection simultaneously
2Force
If viscosity of oil is reduced to reduce friction, then fuel economy improves, but wear issues increase
Solution Approach 1:
The patent changes the chemical composition parameters of the lubricant by incorporating specific nitrogen-containing compounds and boron-based friction modifiers that enable friction reduction without requiring significant viscosity reduction, thereby avoiding wear issues
3Force
If traditional friction modifiers are used in diesel engines, then some friction reduction is achieved, but fuel economy benefits are insufficient
Solution Approach 1:
The patent optimizes the chemical composition parameters of the friction modifier to enhance its effectiveness in diesel engines, incorporating nitrogen-containing compounds that provide superior friction reduction and fuel economy benefits compared to traditional modifiers
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 composition effectively reduces friction and enhances fuel economy in both passenger car and heavy duty diesel engines, outperforming traditional mixed borate esters in friction reduction and fuel efficiency tests.
Implementation Method 1
a lubricating oil additive composition comprising the reaction product of a (a) nitrogen-containing reactant... (b) a source of boron; and (c) a hydrocarbyl polyol
Data Source
AI summary
A lubricating oil additive composition comprising the reaction product of a (a) nitrogen-containing reactant, wherein the nitrogen-containing reactant comprises an alkyl alkanolamide, an alkyl alkoxylated alkanolamide, an alkyl alkanolamine, an alkyl alkoxylated alkanolamine or mixtures thereof, and wherein the nitrogen-containing reactant contains less than 10 mass percent of glycerol alkyl ester; (b) a source of boron; and (c) a hydrocarbyl polyol, having at least three hydroxyl groups.