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Automobile automatic transmission liquid composition with excellent anti-wear property

A technology of automatic transmission fluid and composition, applied in lubricating compositions, petroleum industry, additives, etc., can solve the problems of undiscovered public reports and patent authorization, insufficient attention to the anti-wear performance of automobile automatic transmission fluid, etc., and achieve good economic benefits and social benefits, excellent wear resistance, wide application effect

Active Publication Date: 2014-01-15
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This new type of liquid used in an auto-transmission contains special ingredients that make it resistant against damage from external factors like impact or vibration during use. It also maintain its effectiveness over time even when exposed to harsh environments such as rainwater. These properties are important because they help prevent deteriorations caused by environmental conditions (such as temperature) affecting their functioning properly.

Problems solved by technology

This patented technical problem addressed in this patents relates to finding a way to combine good mechanical behavior (frictional force) and antioxieancy for use in auto car automatic transmissions while also maintaining optimal heat dissipativity or prevention of degradations over time caused by environmental factors like temperature changes.

Method used

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  • Automobile automatic transmission liquid composition with excellent anti-wear property
  • Automobile automatic transmission liquid composition with excellent anti-wear property
  • Automobile automatic transmission liquid composition with excellent anti-wear property

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Lubricating oil composition (I), it comprises: 32.0wt% hydroisomerization dewaxing III type base oil No. 4 oil, 32.0wt% poly-olefin synthetic oil PAO4, 20.0wt% diester synthetic oil ( Component A); 8.0wt% polymethacrylate (component B) with a molecular weight of 800; 1.0wt% polya-olefin (component C); 0.8wt% tricresyl phosphate (component D); 0.50 wt% base number 300mgKOH / g calcium alkyl salicylate (component E); 4.7wt% borophosphated monopolyisobutylene succinimide (component F); 0.30wt% di-n-octyldi Thiocarbamate, 0.30 wt% dinonyl diphenylamine (component G); 0.30 wt% monooctadecyl phosphonate (component H); 0.10 wt% octadecyl thiadi Azole (Component I). Lubricating oil composition (II) is the same as composition (I) except that 0.8wt% tricresyl phosphate in component (D) is replaced by 0.8wt% tricresyl thiophosphate. Lubricating oil composition (Ⅲ) is the same as composition (Ⅰ) except that 0.8wt% tricresyl phosphate in component (D) is replaced by 0.8wt% di-n-dode...

Embodiment 2

[0028] Lubricating oil composition (Ⅴ), it comprises: 84.75wt% hydroisomerization dewaxed type III base oil No. 6 oil (component A); 4.0wt% polymethacrylate (component B) of molecular weight 800 1.5wt% poly-olefin (component C); 0.5wt% di-n-butyl monothiophosphate fatty amine salt (component D); Component E); 7.0wt% of monopolyisobutylene succinimide (component F); 0.30wt% of 2,6-di-tert-butyl-p-cresol, 0.25wt% of di-n-dodecyl di Thiocarbamate, 0.25 wt% n-butyl n-octyl diphenylamine (component G); 0.30 wt% borated glycerol oleate, 0.10 wt% monooctadecyl phosphonate , 0.10wt% di(octadecyl) alkyl phosphite (component H); 0.05wt% thiadiazole dodecyl mercaptan formaldehyde condensate, 0.05wt% thiadiazole dimer, 0.05 wt% of thiadiazole stearylamine formaldehyde condensate (component I). Lubricating oil composition (VI) is the same as composition (V) except that 7.0 wt% of monopolyisobutylene succinimide in component (F) is replaced by 7.0 wt% of bispolyisobutylene succinimide. T...

Embodiment 3

[0033] Lubricating oil composition (IX), it comprises: the polyalkene synthetic oil PAO4 of 68.64wt%, the polyol ester synthetic oil (component A) of 17.16wt%; The polymethacrylate of 10.0wt% molecular weight 800 ( Component B); 0.10wt% polya-olefin (component C); 0.30wt% di-n-octyl monothiophosphate fatty amine salt (component D); 0.10wt% alkali value 40mgKOH / g alkyl Calcium sulfonate (component E); 3.0 wt% boron phosphating bispolyisobutylene succinimide (component F); 0.10 wt% 2,6-di-tert-butylphenol substituted n-butyl acrylate, 0.10 wt% 2,6-di-tert-butylphenol substituted isooctyl acrylate, 0.10wt% 2,6-di-tert-butylphenol substituted dodecyl acrylate (component G); 0.30wt% boronated Ethylene glycol oleate (component H); 0.10 wt% dodecylthiadiazole (component I). Lubricating oil composition (X) except component (H) 0.30wt% borated ethylene glycol oleate is replaced by 0.15wt% borated ethylene glycol oleate and 0.15wt% dioctadecyl Except for the replacement of phosphite, ...

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PUM

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Abstract

The invention provides an automobile automatic transmission liquid composition with excellent anti-wear property. The automobile automatic transmission liquid composition comprises (A) at least one type of high-viscosity-index hydro-refining type III mineral oil, synthetic oil or any composition of the components, (B) at least one type of viscosity index improver, (C) at least one type of pour depressant, (D) at least one type of phosphorated anti-wear additive, (E) at least one type of metal detergent, (F) at least one type of ashless dispersant, (G) at least one type of high-temperature antioxidant, (H) at least one type of friction modifier and (I) at least one type of metal deactivator. The lubricant composition has excellent high and low temperature performance, anti-wear property, frictional characteristic, anti-wear and friction durability, thermal oxidation stability, and especially outstanding anti-wear property, passes through a frictional characteristic rack, a friction durability rack and a thermal oxidation stability rack of a self-changing gearbox, and passes through an FAG FE-8 bearing wear rack, so that the automobile automatic transmission liquid composition is suitable for automobile automatic transmission systems, and especially suitable for an automatic transmission system with a special requirement on anti-wear property.

Description

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Claims

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Application Information

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Owner PETROCHINA CO LTD
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