Lubricant Composition Low-Temperature Fluidity Braking Systems
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Solution Overview
Problem
Conventional lubricants used in braking systems exhibit poor low-temperature fluidity due to increased viscosity, leading to reduced efficiency and durability issues, as decreasing viscosity to address this problem can result in a thinner oil film and compromised durability.
Innovation Solution
A lubricant composition comprising 85-95% polyalkylene glycol, 4-10% glycol ether compound, and 1-5% antioxidant, specifically heat-treated and formulated to maintain optimal viscosity and oil film thickness at low temperatures, improving fluidity and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the viscosity of the lubricant is decreased to improve low-temperature fluidity, then the fluidity at low temperature is improved, but the oil film thickness is decreased which deteriorates the durability of the braking system
Solution Approach 1:
The patent modifies the chemical composition parameters of the lubricant by incorporating specific additives (glycol ether compound and antioxidant) in optimized proportions. This changes the rheological properties of the base oil, allowing the lubricant to maintain appropriate viscosity at low temperatures while preserving oil film thickness through enhanced lubricity from the additive package.
Solution Approach 2:
The patent creates a composite lubricant formulation by combining polyalkylene glycol base oil with glycol ether compound and antioxidant additives. This composite composition synergistically improves low-temperature fluidity while the antioxidant component protects against degradation, maintaining durability without sacrificing cold-temperature performance.
2Reliability
If the viscosity of the lubricant is maintained to preserve oil film thickness and durability, then the durability of the braking system is maintained, but the fluidity at low temperature deteriorates
Solution Approach 1:
The patent changes the viscosity-temperature characteristics by adding glycol ether compound which acts as a viscosity modifier. This additive reduces the viscosity drop at low temperatures while the antioxidant maintains film strength, allowing the lubricant to flow better in cold conditions without compromising durability.
Solution Approach 2:
The glycol ether compound serves as an intermediary substance that mediates between the base oil and the cold temperature environment. It reduces the internal friction of the lubricant at low temperatures, improving fluidity, while the antioxidant simultaneously protects the film integrity, bridging the gap between fluidity and durability requirements.
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 lubricant composition achieves improved low-temperature fluidity and increased oil film thickness, enhancing braking system efficiency by 5-8% and durability by 10% while maintaining viscosity within optimal ranges.
Implementation Method 1
A lubricant composition comprising 85-95% polyalkylene glycol, 4-10% glycol ether compound, and 1-5% antioxidant, specifically heat-treated and formulated to maintain optimal viscosity and oil film thickness at low temperatures
Implementation Method 2
specifically heat-treated and formulated to maintain optimal viscosity and oil film thickness at low temperatures
Data Source
AI summary
Disclosed are a lubricant composition and a method of preparing the same. The lubricant composition has improved low-temperature fluidity and includes polyalkylene glycol, a glycol ether compound, and an antioxidant.