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Composition for double clutch gearbox oil, use of composition and lubricating oil comprising composition

A composition and dual-clutch technology, applied in the field of lubricating oil, can solve problems such as the inability to protect DCT, and achieve the advantages of friction durability, simple manufacturing process, and excellent low-temperature performance

Inactive Publication Date: 2014-12-10
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] From the above requirements, it is obvious that neither the traditional automatic transmission fluid (ATF) nor the standard manual transmission hydraulic fluid (MTF) can undertake the important task of protecting DCT

Method used

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  • Composition for double clutch gearbox oil, use of composition and lubricating oil comprising composition
  • Composition for double clutch gearbox oil, use of composition and lubricating oil comprising composition
  • Composition for double clutch gearbox oil, use of composition and lubricating oil comprising composition

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Effect test

Embodiment 1

[0045] The composition (mass percentage) of the dual-clutch gearbox oil composition is as follows: base oil (by mass ratio 4cSt type III base oil: 3cSt type III base oil = 1:2.3) 77.9%, viscosity index improver (by mass ratio PMA: PIB=6.2:2.0) 8.2%, friction modifier dioctadecyl phosphite 1.2%, 3-n-octyl-1-methyl-imidazole molybdate ionic liquid 2.5%, other ingredients: pour point depressant polymer Methacrylate 2.0%, antiwear agent trialkyl dithiophosphate 1.0%, high temperature antioxidant di-n-butyl dithiocarbamate isooctyl 0.5%, ashless dispersant polyisobutenyl succinimide Amine 6.0%, metal detergent calcium alkylbenzene sulfonate 0.2%, metal deactivator thiadiazole octadecylamine formaldehyde condensate 0.5%.

Embodiment 2

[0047] The composition of the dual-clutch transmission oil composition is as follows: base oil (by mass ratio 4cSt type III base oil: 3cSt type III base oil: PAO4=1:2.2:0.5) 75.8%, viscosity index improver PMA 9.4%, friction Improver boronated glycerol monooleate 2.0%, tributyl alkyl quaternary phosphonium salt ionic liquid 3.0%, other ingredients: pour point depressant di-n-butyl dithiocarbamate isooctyl ester 1.8%, anti-wear Dithiophosphate acrylate 1.0%, high temperature antioxidant bisbutyl diphenylamine 0.5%, ashless dispersant polyisobutenyl succinimide 5.8%, metal detergent calcium alkylbenzene sulfonate 0.2%, metal passivation Thiadiazole stearylamine formaldehyde condensate 0.5%.

Embodiment 3

[0049] The composition of the dual clutch transmission oil composition is as follows: base oil 4cSt type III base oil 78.3%, viscosity index improver PMA8.0%, friction modifier glycerol dioleate 0.2%, methylimidazole tetrafluoroborate Salt ionic liquid 3.0%, other ingredients: pour point depressant polymethacrylate 2.0%, antiwear agent dithiophosphate acrylate 1.0%, high temperature antioxidant dibutyl diphenylamine 0.5%, ashless dispersant polyisobutylene base Succinimide 6.0%, metal detergent calcium alkylbenzene sulfonate 0.5%, metal deactivator thiadiazole octadecylamine formaldehyde condensate 0.5%.

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Abstract

The invention relates to a composition for double clutch gearbox oil. The composition comprises the following components in parts by mass: 0.5-15 parts of viscosity index improver, 0.05-10 parts of friction improver and 0.1-10 parts of ionic liquid. The invention further relates to use of the composition and wet type double clutch gearbox lubricating oil comprising the composition. The composition provided by the invention can satisfy the lubricating requirements of clutches, a synchronizer, a gear and a bearing in a wet type double clutch gearbox, and thus can be used for the wet type double clutch gearbox lubricating oil. The lubricating oil has excellent low temperature performance, frictional characteristic, performance of the synchronizer and rust and corrosion resistance. Compared with similar marketed products, the lubricating oil added with the composition has a remarkable advantage in wearing endurance and is simple in ingredients and simple and convenient in manufacturing process.

Description

Technical field [0001] The present invention relates to the field of lubricating oil, in particular to a composition for dual-clutch gearbox oil, its use, and lubricating oil containing the same. Background technique [0002] With the continuous improvement of people's requirements for driving comfort, emissions, fuel economy, etc., the dual clutch transmission (DCT) has developed rapidly. At the same time, due to the unique structure of DCT, higher requirements are put forward on lubricants. [0003] As a dry dual-clutch gearbox, its lubrication requirements are consistent with traditional manual gearbox oil. As a wet dual-clutch gearbox oil, due to the difference in gearbox structure and lubrication system, its lubricating oil has very unique characteristics and functions. Among the series of requirements for oil products of wet dual-clutch gearboxes, there is opposition between some parts. This requires wet dual-clutch gearbox oils to have unique performance to balance these o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M165/00C10N40/04C10N30/06C10N30/08C10N30/12
Inventor 孟震英徐魏张国茹周轶文彦龙安岸斐
Owner CHINA PETROLEUM & CHEM CORP
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