Sedan hand gearshift case gear lubricating oil composition

A technology for lubricating oil composition and manual transmission, which is applied in the directions of lubricating composition, petroleum industry, base material, etc., can solve the problem that it cannot be used to prepare manual transmission oil for cars, and achieves good economic and social benefits, Excellent high and low temperature performance and low production cost

Active Publication Date: 2008-11-05
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, 1045 G252 from Mobil, and Hitec 343 from G252B Ethyl Company. These gear oil compound additives can only be used to prepare vehicle drive axles It cannot be used to prepare manual transmission oil for cars. There are some manual transmission oil products for cars on the international market, but there are no public reports on the specific composition of base oil and additives.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021]Lubricating oil composition (I), it comprises: No. 5 oil (component A) of Daqing hydroisomerization dewaxed base oil of 75.0wt%; The polymethacrylate (component B) of 20.0wt%; 0.5wt% % polyalphaolefin (component C); 3.05 wt% of sulfurized isobutylene (component D); 0.8 wt% of trialkyl dithiophosphate (component E); 0.1 wt% of dialkyl disulfide Zinc phosphate (component F); 0.4 wt% boronated succinimide (component G); 0.15 wt% glyceryl oleate (component H). Lubricating oil composition (II) except that 75.0wt% of Daqing hydroisomerization dewaxed base oil No. 5 oil in component (A) is replaced by 75.0wt% poly-a-olefin synthetic oil PA0-4, the rest are the same combination Object (I). Lubricating oil composition (III) is the same as composition (I) except that 75.0wt% of Daqing hydroisomerized dewaxed base oil No. 5 oil in component (A) is replaced by 75.0wt% diester synthetic oil. Lubricating oil composition (IV) is the same as composition (I) except that 75.0wt% of Daqi...

Embodiment 2

[0028] Lubricating oil composition (V), it comprises: 85.0wt% Daqing hydroisomerization dewaxed base oil No. 5 oil (component A); 8.0wt% polyisobutylene (component B); 1.5wt% polyformaldehyde 4.5 wt% of sulfurized isobutylene (component D); 0.2 wt% of isooctyl m-diphosphonate (component E); 0.6 wt% of thiophosphorous acid nitrogen compound condensation (Component F); 0.15% by weight of dihydroxyethylamide oleate (Component G); 0.05% by weight of dodecylamine oleate (Component H). Lubricating oil composition (VI) is the same as composition (V) except that 4.5% of sulfurized isobutylene in component (D) is replaced by 4.5% by weight of di-tert-butyl polysulfide. Compositions (V), (VI) in the main properties, performance list 2.

[0029] Table 2 Composition main properties performance

[0030] project

[0031] The results in Table 2 show that the anti-corrosion, anti-rust and extreme pressure anti-wear properties of oil products using sulfurized isobutylene and di-te...

Embodiment 3

[0033] Lubricating oil composition (VII), it comprises: 82.0wt% Daqing hydroisomerization dewaxed base oil No. 5 oil (component A); 12.0wt% polyisobutylene (component B); 1.5wt% polyformaldehyde 3.55 wt% isobutylene sulfur (component D); 0.4 wt% isooctyl m-diphosphonate (component E); 0.4 wt% diisooctyl dithiophosphoric acid Cuprous (component F); 0.1 wt% dodecenyl succinate (component G); 0.05 wt% lauryl alcohol (component H). The lubricating oil composition (VIII) is the same as the composition (VII) except that 0.4 wt% of isooctyl m-diphosphonate in component (E) is replaced by 0.4 wt% of octadecyl acid phosphite. The lubricating oil composition (IX) is the same as the composition (VII) except that 0.4 wt% of isooctyl m-diphosphonate in component (E) is replaced by 0.4 wt% of octadecylamine m-diphosphonate. Lubricating oil composition (X) is the same as composition (VII) except that 0.4wt% isooctyl m-diphosphonate is replaced by 0.4wt% tributyl phosphorothioate in componen...

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PUM

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Abstract

The invention provides a gear lubricant composite for manual transmissions of the light cars, comprising (A) at least one type of refining mineral oil with high viscosity index, or polyolefin synthesis oil, or ester lubricants, or a free composite of the above components, (B) at least one type of viscosity index improver, (C) at least one type of pour point depressant, (D) at least one type of extreme pressure additive with sulfurs, (E) at least one type of anti-wear additive with phosphorus, (F) at least one type of wear, oxygen, and corrosion-preventing multifunctional additive with phosphorus, (G) at least one type of anti-rusting additive, and (H) at least one type of friction modifier. The lubricant composite has excellent performance of high and low temperature, which can meet the requirements of gear oil with a viscosity grade of 75W/90. Moreover, passing the full-size gear bench tests as CRCL-42, L-37, L-33, L-60, and L-60-1 as well as cycle bench tests for the manual transmissions of the light cars, the gear lubricant composite can meet lubrication requirements of the manual transmissions of the light top-grade cars.

Description

(1) Technical field [0001] The invention relates to a lubricating oil composition, in particular to a lubricating oil composition used in a car gear transmission system, and belongs to the technical field of 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M145/10C10M137/10C10M133/16C10M135/02C10M101/02C10M107/02C10N30/06C10N30/02C10N30/12C10N40/04
Inventor 伏喜胜糜莉萍续景
Owner PETROCHINA CO LTD
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