Lubricating oil composition
A lubricating oil composition with specific base oil properties and additives addresses wear resistance issues in reduced viscosity oils, enhancing wear protection while maintaining fuel efficiency.
JP7873956B2Active Publication Date: 2026-06-15SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV
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Patent Information
- Application Number
- JP2021138277
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-08-26
- Publication Date
- 2026-06-15
- Estimated Expiration
- 2041-08-26
AI Technical Summary
Technical Problem
Reduced viscosity lubricating oil compositions increase metal contact, leading to a deterioration in wear resistance, which conventional additives like zinc dihydrocarbyl dithiophosphate (ZnDTP) cannot sufficiently address.
Method used
A lubricating oil composition with a base oil having an aniline point of 120-130°C and kinematic viscosities of 20-60 mm²/s at 25°C and 3.0-6.0 mm²/s at 100°C, preferably containing Group 3 and/or Group 4 base oils, enhances wear resistance by efficiently delivering additives to metal surfaces.
Benefits of technology
The composition improves wear resistance while maintaining fuel efficiency by optimizing base oil properties to ensure additive delivery and dissolution, thereby reducing wear.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide a lubricant composition excellent in wear resistance.MEANS FOR SOLVING THE PROBLEM: A lubricant composition comprises a base oil, wherein the base oil has an aniline point of 120 to 130°C, the lubricant composition has kinematic viscosity of 20 to 60 mm2 / s at 25°C, and the lubricant composition has kinematic viscosity of 3.0 to 6.0 mm2 / s at 100°C.SELECTED DRAWING: None
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