Aqueous Lubricant Composition for Drive Systems

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Solution Overview

Problem

Conventional lubricants, particularly hydrocarbon-based ones, fail to effectively reduce friction and wear in mechanical systems while also contributing to environmental concerns such as carbon dioxide emissions and toxic solvent use.

Innovation Solution

Aqueous lubricant compositions comprising deionized water, polyalkylene glycol, and phosphorus compounds, along with antifreeze compounds like glycols, which provide excellent tribological properties for reducing friction and wear in mechanical systems, potentially replacing hydrocarbon-based lubricants.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If hydrocarbon-based lubricants are used, then friction reduction and wear protection are achieved, but environmental harm and CO2 emissions increase

Engineering Contradiction:

Improvefriction reduction and wear protectionVSAvoidenvironmental harm and CO2 emissions

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the fundamental parameter of the lubricant base fluid from hydrocarbon-based to water-based. This parameter change enables the lubricant to maintain tribological effectiveness while eliminating the environmental harm and CO2 emissions associated with hydrocarbon-based lubricants, directly resolving the contradiction between reliability and environmental harm

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite aqueous lubricant composition by combining water with multiple additives including polyalkylene glycol, friction-modifying additives, and anti-wear additives. This composite approach allows the water-based lubricant to achieve the friction reduction and wear protection properties previously only available from hydrocarbon-based lubricants, while maintaining environmental benefits

Inventive Principle:

Principle #40Composite materials

2Temperature

If water is used as coolant, then cooling efficiency is improved, but tribological properties for lubrication are insufficient

Engineering Contradiction:

Improvecooling efficiencyVSAvoidtribological properties

Core Design Contradiction:

TemperatureVSReliability

Solution Approach 1:

The patent makes the aqueous composition perform multiple functions simultaneously: it serves as both a coolant (maintaining water's excellent cooling efficiency) and a lubricant (gaining tribological properties through additives). This multi-functionality resolves the contradiction by allowing a single composition to excel at both cooling and lubrication

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the cooling function of water with the lubricating function of additives into a single integrated composition. By combining these previously separate functions into one aqueous lubricant composition, the system eliminates the need for separate coolant and lubricant systems while achieving both cooling efficiency and tribological protection

Inventive Principle:

Principle #5Merging (Combining)

3Object-affected harmful factors

If water-based formulations are used, then environmental impact is reduced, but tribological performance is insufficient

Engineering Contradiction:

Improveenvironmental impactVSAvoidtribological performance

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent formulates a composite aqueous lubricant containing water, polyalkylene glycol, friction-modifying additives, and anti-wear additives. This composite structure provides the environmental benefits of water-based formulations while the combined additives deliver sufficient tribological performance for practical applications

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent modifies the chemical composition parameters of the aqueous base by incorporating specific additives. These parameter changes transform the tribological properties of the water-based formulation, enabling it to achieve performance levels previously only attainable with hydrocarbon-based lubricants

Inventive Principle:

Principle #35Parameter changes

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 aqueous lubricant compositions demonstrate equivalent or improved friction reduction and wear resistance compared to hydrocarbon-based lubricants, offering dual cooling and lubrication functions, reducing fuel consumption, and lowering CO2 emissions.

Implementation Method 1

aqueous lubricant compositions for the lubrication of a mobile or stationary drive system

Methodology Applied

Scientific EffectLubrication: Lubrication

Implementation Method 2

protect parts against wear

Methodology Applied

Scientific EffectWear protection: Wear

Implementation Method 3

water is an excellent coolant

Methodology Applied

Scientific EffectCooling: Cooling

Data Source

PatentUS12163105B2Aqueous composition for lubricating motorization systems

Publication Date: 2024.12.10 TOTALENERGIES ONETECH

AI summary

The present invention relates to an aqueous lubricant composition for the lubrication of a stationary or mobile drive system, comprising at least: deionized water; at least one polyalkylene glycol; at least one antifreeze compound chosen from glycols, and at least one phosphorus compound.It also relates to the use of this aqueous lubricant composition for the lubrication and cooling of a stationary or mobile drive system.