Lubricating Oil Composition with Trihydroxybenzoic Acid Ester
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Lubricating oils used in hydraulic systems face challenges with reduced abrasion resistance and increased wear due to higher loads, speeds, and energy efficiency demands, particularly in polar oxygen-containing compound-based oils, which require improved wear-resistance agents to maintain low frictional loss and rust resistance.
Innovation Solution
A lubricating oil composition combining 3,4,5-trihydroxybenzoic acid ester and phosphoric acid ester is used, which reduces the frictional coefficient, inhibits wear, and prevents rust on iron-based sliding sections by dissolving effectively in oxygen-containing compound-based oils like animal or vegetable oils, enhancing lubricity and rust prevention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If polar oxygen-containing compound-based lubricating oils are used to reduce viscosity and improve energy efficiency, then energy efficiency is improved, but abrasion resistance deteriorates and wear increases
Solution Approach 1:
The invention changes the chemical structure parameters of the wear-resistance agent by using a specific phosphoric acid ester with particular molecular characteristics that enable effective adsorption onto metal surfaces while maintaining compatibility with polar base oils, thereby achieving both low friction and high wear resistance
Solution Approach 2:
The invention creates a composite protective film on metal surfaces through the synergistic interaction between the phosphoric acid ester additive and the polar oxygen-containing base oil, forming a dual-layer protective structure that provides both lubrication and wear resistance
2Reliability
If conventional wear-resistance agents are used in polar oxygen-containing compound-based lubricating oils, then wear resistance should be improved, but the concentration of the wear-resistance agent at sliding sections becomes low resulting in poor lubricity
Solution Approach 1:
The invention modifies the molecular parameters of the wear-resistance agent by selecting a phosphoric acid ester with specific chain length and functional group configuration that enhances its solubility and distribution uniformity in polar base oils, ensuring adequate concentration at sliding sections
Solution Approach 2:
The phosphoric acid ester acts as an intermediary substance that bridges the polar base oil and the metal surface, facilitating effective transfer of protective properties to the sliding sections through its dual affinity for both oil and metal
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 significantly lowers wear, maintains a stable low frictional coefficient, and provides high rust prevention for iron-based sliding sections, making it suitable for prolonged use and energy-efficient applications.
Implementation Method 1
the 3,4,5-trihydroxybenzoic acid ester sufficiently dissolves in oxygen-containing compound-based oils such as animal or vegetable oils and esters
Implementation Method 2
the frictional coefficient is lowered and a function is exhibited that can inhibit wear
Implementation Method 3
hematite, which is iron red rust, is reduced to hard, strong black rust (magnetite), thereby producing a high rust-preventing effect
Data Source
AI summary
The lubricating oil composition of the invention comprises a lubricant base oil, a 3,4,5-trihydroxybenzoic acid ester at 5-5000 ppm by mass, and a phosphorus compound at 0.001-10.0% by mass, based on the total mass of the lubricating oil composition. The lubricating oil composition of the invention significantly lowers wear and exhibits a stable low frictional coefficient, while having a high rust-preventing effect for iron-based sliding sections. The lubricating oil composition of the invention is therefore suitable for prolonged use, and exhibits a notable effect for energy savings as well due to its stable low frictional coefficient property.