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Lubricating oil composition for antiskid differential

A technology of lubricating oil composition and anti-slip differential, which is applied in the field of lubricating oil composition and anti-slip differential lubricating oil composition, which can solve the problem that the friction characteristics cannot meet the lubrication requirements of vehicle anti-slip differential and cannot guarantee the anti-slip differential Problems such as the normal operation of the device and the impact on the performance of the vehicle, to achieve good economic and social benefits, low production costs, and excellent friction characteristics

Inactive Publication Date: 2014-10-15
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, vehicle gear oils that meet API GL-5 and GL-4 specifications are generally used for the lubrication of vehicle anti-skid differentials. overall vehicle performance
The main reason for the "slipping" of the anti-slip differential is that the friction coefficient of the GL-5 and GL-4 vehicle gear oil is too small, and the ratio of the dynamic and static friction coefficient is also relatively small, that is to say, the GL-5 and GL-4 vehicle gear oil The friction characteristics cannot meet the lubrication requirements of the vehicle's limited slip differential

Method used

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  • Lubricating oil composition for antiskid differential
  • Lubricating oil composition for antiskid differential
  • Lubricating oil composition for antiskid differential

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Lubricating oil composition (I), it comprises: 4.155wt% solvent deep refined base oil HVIS150BS, 78.945wt% solvent deep refined base oil HVIS500 (component A); 5.0wt% polymethacrylate (component B); 0.1wt% polya-olefin (component C); 3.8wt% RHY4208A vehicle gear oil compound additive (component D); 3.0wt% polyisobutenyl succinimide, 3.0wt% C20 -24 Calcium Alkylbenzene Sulfonate (Component E); 1.0 wt% Octadecyl Phosphite, 1.0 wt% Borated Glycerol Oleate (Component F). Lubricating oil composition (II) except component (E) 3.0wt% polyisobutenyl succinimide, 3.0wt% C20-24 calcium alkylbenzene sulfonate is replaced by 3.0wt% borated polyisobutenyl Except for succinimide and 3.0wt% calcium alkylbenzenesulfonate of C20-24 instead, the rest are the same as composition (I). Lubricating oil composition (Ⅲ) except component (E) 3.0wt% polyisobutenyl succinimide, 3.0wt% C20-24 calcium alkylbenzene sulfonate and 3.0wt% boron phosphated polyisobutene Except for succinimide, 3.0wt% ...

Embodiment 2

[0023] Lubricating oil composition (Ⅳ), it comprises: 85.3wt% Daqing hydroisomerization dewaxed base oil No. 5 oil (component A); 8.0wt% polymethacrylate (component B); 1.5wt% % polyalphaolefin (component C); 3.8wt% of RHY4208A vehicle gear oil compound additive (component D); 0.5wt% of boron phosphated polyisobutenyl succinimide, 0.5wt% of C20-24 Calcium alkylbenzene sulfonate (component E); 0.2 wt% dodecyl phosphonate, 0.2 wt% borated pentaerythritol oleate (component F). Lubricating oil composition (Ⅴ) except component (E) 0.5wt% boron phosphate polyisobutenyl succinimide, 0.5wt% C20-24 calcium alkylbenzene sulfonate is replaced by 0.5wt% boron phosphorus Except for polyisobutenyl succinimide and 0.5wt% C10-14 sulfurized calcium alkylphenate instead, the rest are the same as composition (IV). The lubricating oil composition (Ⅵ) except component (E) 0.5wt% boron phosphated polyisobutenyl succinimide, 0.5wt% C20-24 calcium alkylbenzene sulfonate is replaced by 0.5wt% boron p...

Embodiment 3

[0029] Additive composition (VII), which includes: 55.12wt% poly-alkene synthetic oil PAO4, 13.78wt% diester synthetic oil (component A); 20.0wt% polymethacrylate (component B ); 0.1wt% polya-olefin (component C); 5.5wt% RHY4208A vehicle gear oil compound additive (component D); 3.5wt% boron phosphated polyisobutenyl succinimide, 0.5wt% C20-24 calcium alkylbenzenesulfonate (component E); 1.0 wt% dodecyl phosphite, 0.5 wt% borated glycerol oleate (component F). The evaluation results of composition (VII) are listed in Table 3.

[0030] Table 3 Composition (Ⅶ) evaluation results

[0031]

[0032] The experimental results show that the lubricating oil composition (VII) not only passed the four gear racks of L-42, L-37, L-33, and L-60-1, but also reached the specification index of GB13895-92 (API GL—5) , and has excellent durability of friction characteristics.

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Abstract

The invention provides a lubricating oil composition for an antiskid differential. The lubricating oil composition comprises A, at least one deeply-refined mineral oil having a high viscosity index, polyolefin synthetic oil, ester synthetic oil or a composition comprising the any above ingredients, B, at least one viscosity index improver, C, at least one pour-point depressant, D, at least one vehicle gear oil composite additive, E, at least one friction improvement additive and F, at least one antiwear antifriction additive. The lubricating oil composition has excellent friction characteristics. Compared with the saled vehicle gear oil, the lubricating oil composition has better friction characteristics, has a friction coefficient improved by 10-30% and has good slip resistance.

Description

(1) Technical field [0001] The invention relates to a lubricating oil composition, in particular to a lubricating oil composition for an anti-skid differential, and belongs to the technical field of lubricating oil and lubricating oil additives. (2) Background technology [0002] At present, vehicle gear oils that meet API GL-5 and GL-4 specifications are generally used for the lubrication of vehicle anti-skid differentials. performance of the entire vehicle. The main reason for the "slipping" of the anti-slip differential is that the friction coefficient of the GL-5 and GL-4 vehicle gear oil is too small, and the ratio of the dynamic and static friction coefficient is also relatively small, that is to say, the GL-5 and GL-4 vehicle gear oil The friction characteristics cannot meet the lubrication requirements of the vehicle's limited slip differential. Compared with GL-5 and GL-4 vehicle gear oils, the anti-skid differential lubricating oil composition provided by the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/06C10N30/12C10N30/08
Inventor 伏喜胜续景糜莉萍
Owner PETROCHINA CO LTD
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