Botryococcus Oil Grease for Clutch Wear and Heat Resistance
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Solution Overview
Problem
Conventional lubricants and grease compositions used in clutch and torque limiter mechanisms suffer from susceptibility to wear and poor heat resistance, leading to reduced lubricating properties and shorter flaking life, while also failing to prevent electrical pitting in bearings.
Innovation Solution
A grease composition utilizing Botryococcus oil or hydrogenated Botryococcus oil as the base oil, combined with a thickener, which provides superior wear resistance, high heat resistance, and torque transmission performance, with a viscosity-pressure coefficient of 20 or more at 25°C, ensuring excellent lubrication and extended flaking life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If silicone oil is used as base oil for grease composition, then torque transmission performance is improved, but wear resistance deteriorates
Solution Approach 1:
The invention changes the chemical composition parameters of the base oil by using Botryococcus oil with specific molecular structure (triterpene hydrocarbons with isoprene units) instead of conventional silicone oil, achieving both high torque transmission and wear resistance simultaneously
Solution Approach 2:
The invention uses a composite grease formulation combining Botryococcus oil base oil with specific thickeners (urea compounds, metallic soaps) and additives to achieve synergistic effects that resolve the contradiction between torque transmission and wear resistance
2Power
If traction oil such as synthetic naphthene oil is used as base oil, then torque transmission performance is improved, but heat resistance deteriorates
Solution Approach 1:
The invention changes the thermal stability parameters by selecting Botryococcus oil with high flash point and oxidation resistance properties, maintaining torque transmission capability while achieving superior heat resistance compared to synthetic naphthene oil
3Use of energy by moving object
If low-viscosity oil is used for lubricant, then energy consumption is reduced, but lubricating properties deteriorate
Solution Approach 1:
The invention optimizes the viscosity parameter of Botryococcus oil to achieve low viscosity for reduced energy consumption while the high viscosity-pressure coefficient compensates to maintain adequate lubricating film formation
Solution Approach 2:
The invention creates local high-viscosity regions under high pressure contact zones through the high viscosity-pressure coefficient characteristic, ensuring adequate lubrication film where needed while maintaining low overall viscosity for energy efficiency
4Ease of manufacture
If conventional grease composition is used, then manufacturing cost is reduced, but flaking life deteriorates
Solution Approach 1:
The invention changes the chemical composition parameters by incorporating Botryococcus oil with superior oxidation resistance and stability, extending flaking life while maintaining cost-effectiveness through efficient lubrication performance
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 grease composition exhibits enhanced wear resistance and heat resistance, maintaining torque transmission performance equal to or better than conventional lubricants, while preventing electrical pitting in bearings due to its high viscosity-pressure coefficient, ensuring effective lubrication and extended lifespan.
Implementation Method 1
the viscosity-pressure coefficient (a) at 25°C of the Botryococcus oil and/or the hydrogenated Botryococcus oil is as high as 20 or more
Implementation Method 2
exhibiting excellent wear resistance and high heat resistance
Data Source
AI summary
The invention provides a grease composition containing a thickener and a base oil, wherein the base oil contains (a) a hydrocarbon oil extracted from Botryococcus braunii and/or (b) a hydrocarbon oil obtainable by hydrogenating the hydrocarbon oil (a).