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Clean-type universal gear lubricating oil composition

A technology of gear lubricating oil and composition, which is applied in the field of lubricating oil composition and gear transmission system lubricating oil composition, can solve the problems that cannot be used to prepare manual transmission oil for cars, etc., and achieve good economic and social benefits, The effect of low production cost and broad application prospect

Inactive Publication Date: 2012-04-18
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most representative gear lubricant compound additives in the international market are Anglamol 6085 from Lubrizol Company, G252 from 1045Mobil Company, Hitec 343 from G252B Ethyl Company, etc. These gear oil compound additives can only be used to prepare vehicle drive axle oil , can not be used to prepare manual transmission oil for cars. There are some manual transmission oil products for cars in the international market, but there is no public literature report on the specific composition of its base oil and additives.

Method used

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  • Clean-type universal gear lubricating oil composition
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  • Clean-type universal gear lubricating oil composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Lubricating oil composition (I), it comprises: No. 5 oil (component A) of Daqing hydroisomerization dewaxed base oil of 79.0wt%; The polymethacrylate (component B) of 16.0wt%; 0.40wt% % polyalphaolefin (component C); 1.0 wt% zinc diisooctyldithiophosphate (component D); 1.50 wt% calcium overbase number alkylsulfonate (component E); 1.50 wt% % of highly active polyisobutylene succinimide (component F); 0.30 wt% of di-n-octyl sulfide (component G); 0.30 wt% of pentaerythritol dioleate (component H). Lubricating oil composition (II) except that 79.0wt% of Daqing hydroisomerized dewaxed base oil No. 5 oil in component (A) is replaced by 79.0wt% poly-a-olefin synthetic oil PAO-4, and the rest are the same combination Object (I). Lubricating oil composition (III) is the same as composition (I) except that 79.0wt% of Daqing hydroisomerized dewaxed base oil No. 5 oil in component (A) is replaced by 79.0wt% diester synthetic oil. Lubricating oil composition (IV) is the same as...

Embodiment 2

[0028] Lubricating oil composition (V), it comprises: 81.3wt% Daqing hydroisomerization dewaxed base oil No. 5 oil (component A); 8.0wt% polyisobutylene (component B); 1.5wt% polyformaldehyde 1.5 wt% zinc diisooctyldithiophosphate (component D); 3.0 wt% calcium overbased alkyl salicylate (component E); 3.0 wt% 0.7 wt% of dinonyl diphenylamine (component G); 1.0 wt% of dodecylamine oleate (component H). The lubricating oil composition (VI) except component (D) 1.5% zinc diisooctyl dithiophosphate is replaced by 0.75wt% isooctyl acidic phosphoric acid ester dodecylamine salt and 0.75wt% acidic phosphite octadecyl Except for the substitution of alkyl ester, the rest are the same as composition (V). Compositions (V), (VI) in the main properties, performance list 2.

[0029] Table 2 Composition main properties performance

[0030]

[0031] The results in Table 2 show that the anticorrosion performance of diisooctyl zinc dithiophosphate is better than that of isooctyl acid pho...

Embodiment 3

[0033] Lubricating oil composition (VII), it comprises: 71.0wt% Daqing hydroisomerization dewaxed base oil No. 5 oil (component A); 12.0wt% polyisobutylene (component B); 1.5wt% polyformaldehyde Acrylate (component C); 1.0 wt% zinc diisooctyl dithiophosphate, 1.5 wt% isooctyl acid phosphate dodecylamine salt, 1.5 wt% acid lauryl phosphite (Component D); 4.5 wt% of overbase number sulfurized calcium alkylphenate (component E); 2.5 wt% of boronated highly reactive polyisobutylene succinimide, 2.0 wt% of boronated highly reactive polyisobutylene succinimide High molecular weight polyisobutylene succinimide (component F); 2.0 wt% phenolic antioxidant (component G); 0.5 wt% lauryl alcohol (component H). The lubricating oil composition (VIII) is the same as the composition (VII) except that 4.5wt% of the high-basic sulfurized alkylphenate calcium in the component (E) is replaced by 4.5wt% of the high-basic calcium alkylsulfonate. The lubricating oil composition (IX) is the same as ...

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PUM

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Abstract

The invention provides clean-type universal gear lubricating oil composition which comprises (A) at least one of high-viscosity index deeply-refined mineral oil, or synthetic oil, or any composition of the above components; (B) at least one viscosity index improver; (C) at least one pour point depressant; (D) at least one phosphorus-containing antiwear additive; (E) at least one metal detergent; (F) at least one ashless dispersant; (G) at least one high temperature anti-oxidant; (H) at least one friction reducer. The lubricating oil composition has excellent high and low temperature performance, and can meet the requirements for gear oil with a 75W / 85 viscosity grade; the lubricating oil composition has excellent high temperature detergency and antiwear durability, passes gearbox cycle bench tests and rear axle gear bench tests, is applicable to vehicle transmission systems, and is especially applicable to transmission systems of passenger cars.

Description

(1) Technical field [0001] The invention relates to a lubricating oil composition, in particular to a lubricating oil composition for a gear transmission system, and belongs to the technical field of gear lubricating oil and lubricating oil additives. (2) Background technology [0002] Vehicle gear oil is used in the transmission parts of various vehicles to reduce friction and wear and improve transmission efficiency. Vehicle gear oils can be roughly divided into manual transmission oils for trucks and buses, manual transmission oils for cars, and vehicle drive axle oils according to their different application occasions. Truck and bus manual transmission oils are required to have excellent anti-corrosion performance, thermal oxidation stability, sealing adaptability and anti-wear durability; vehicle drive axle oils are required to have excellent extreme pressure anti-wear performance, anti-rust Stability and sealing adaptability, car manual transmission oil takes into acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/04C10N30/12C10N30/06C10N40/04
Inventor 伏喜胜糜莉萍
Owner PETROCHINA CO LTD
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