Oil composition special for low-viscosity manual transmission

A manual transmission and composition technology, applied in the field of lubricating oil, can solve the problems of reduced oil film thickness, insufficient bearing capacity, poor transmission durability, etc., and achieve low viscosity characteristics, reduced agitation loss, extreme pressure and anti-wear performance. strong effect

Inactive Publication Date: 2019-04-26
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, simply reducing the viscosity of the oil can easily lead to a decrease in the thickn...

Method used

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  • Oil composition special for low-viscosity manual transmission
  • Oil composition special for low-viscosity manual transmission
  • Oil composition special for low-viscosity manual transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] This embodiment provides a special oil composition for low-viscosity manual transmission, the composition of which is shown in Table 1:

[0062] Table 1: Composition of low-viscosity manual transmission oil composition

[0063]

[0064]

Embodiment 2

[0066] This embodiment provides a special oil composition for low-viscosity manual transmission, the composition of which is shown in Table 2:

[0067] Table 2: Composition of low-viscosity manual transmission oil composition

[0068] Element

Embodiment 3

[0070] This embodiment provides a special oil composition for low-viscosity manual transmission, the composition of which is shown in Table 3:

[0071] Table 3: Composition of low-viscosity manual transmission oil composition

[0072] Element

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Abstract

The invention relates to an oil composition special for a low-viscosity manual transmission. The viscosity grade of the composition is not higher than 75 W, and the oil composition is prepared from the following components in percentage by mass: 0.05-2% of at least one friction modifier, 1-10% of at least one extreme-pressure antiwear agent, 0.1-15% of at least one purification dispersant, 0.5-5%of at least one antioxidant, 0.01-1% of at least one metal deactivator, 0-1000 ppm of an antifoaming agent, 0.5-10% of viscosity index improver, and the balance of synthetic base oil and/or mineral base oil. The oil composition special for the low-viscosity manual transmission is specially developed for the manual transmission with the high fuel economy requirement, obtained lubricating oil has excellent extreme-pressure antiwear performance, shear stability performance, oxidation stability performance and shows up excellent fuel economy on the basis of meeting the low-viscosity requirement, and the oil composition is suitable for lubricating the manual transmission with the high fuel economy requirement or a new energy vehicle reduction box.

Description

technical field [0001] The invention relates to the field of lubricating oils, in particular to a special oil composition for manual transmissions with low viscosity, strong extreme pressure and anti-wear properties, excellent anti-oxidation properties and meeting fuel economy requirements. Background technique [0002] Special oil for manual transmission is a kind of lubricating oil suitable for manual transmission system, which mainly plays the roles of lubrication, cooling, equipment protection and power transmission. At present, the viscosity grades of domestic manual transmission oils are mainly 75W-90 and 75W-85, and a small number of manufacturers choose 75W-80 viscosity grades. With the increasingly stringent national fuel economy regulations, the improvement of efficiency has been paid more and more attention by OEMs. Among them, the most intuitive way to improve the transmission efficiency is to reduce the viscosity of the transmission oil, thereby reducing the ch...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/06C10N30/02C10N30/10C10N40/04
CPCC10M169/044C10M2203/1025C10M2205/0285C10M2207/023C10M2207/289C10M2209/082C10M2209/084C10M2209/103C10M2215/064C10M2215/086C10M2215/223C10M2219/022C10M2219/044C10M2219/066C10M2219/086C10M2219/106C10M2223/04C10M2223/045C10M2223/047C10M2223/049C10M2227/06C10M2227/061C10M2229/041C10N2030/02C10N2030/06C10N2030/10C10N2030/68C10N2040/044C10N2010/04
Inventor 安岸斐王宁张国茹杜雪岭王向阳周轶孟震英文彦龙
Owner CHINA PETROLEUM & CHEM CORP
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