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Energy-efficient vehicle gear lubricating oil composition

A technology of gear lubricating oil and composition, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems of inconspicuous energy-saving effect, achieve excellent energy-saving and friction-reducing performance, improve gear transmission efficiency, and facilitate deployment

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

The energy-saving effect of the vehicle gear oil products disclosed in the prior art is not obvious

Method used

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  • Energy-efficient vehicle gear lubricating oil composition
  • Energy-efficient vehicle gear lubricating oil composition
  • Energy-efficient vehicle gear lubricating oil composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Lubricating oil composition (I), it comprises: No. 5 oil (component A) of Daqing hydroisomerization dewaxed base oil of 70.5wt%; The polymethacrylate (component B) of 20.0wt%; 0.5wt% % polyalpha-olefin (component C); 4.5 wt% of sulfurized isobutylene (component D); 1.0 wt% of acid lauryl phosphite (component E); 1.0 wt% of dialkyl disulfide Zinc phosphate (component F); 1.0 wt% boronated succinimide (component G); 1.5 wt% boronated glyceryl oleate (component H). Lubricating oil composition (II) except that 70.5wt% of Daqing hydroisomerization dewaxed base oil No. 5 oil in component (A) is replaced by 70.5wt% poly-a-olefin synthetic oil PAO-4, the rest are the same combination Object (I). Lubricating oil composition (III) is the same as composition (I) except that 70.5wt% of Daqing hydroisomerized dewaxed base oil No. 5 oil in component (A) is replaced by 70.5wt% diester synthetic oil. Lubricating oil composition (IV) is the same as composition (I) except that 70.5wt% ...

Embodiment 2

[0030]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 4.0 wt% of tert-butyl trisulfide (component D); 0.8 wt% of isooctyl m-diphosphonate (component E); 0.1 wt% of benzotriazepam Azole (component F); 0.1 wt% dihydroxyethylamide oleate (component G); 0.5 wt% borated ethylene glycol oleate (component H). Lubricating oil composition (VI) is the same as composition (V) except that 0.5wt% borated oleic acid ethylene glycol ester of component (H) is replaced by 0.5wt% high alkali value alkyl salicylate . The lubricating oil composition (VII) is the same as the composition (V) except that 0.5wt% of the borated oleic acid ethylene glycol ester in the component (H) is replaced by 0.5wt% of the high alkali value sulfurized alkylphenate. Lubricating oil composition (VIII) is the same as composition (V) except that 0.5wt% of borated oleic acid ethylene...

Embodiment 3

[0035] Additive composition (XII), it comprises: the polyalpha-olefin synthetic oil PAO4 (component A) of 72.8wt%; The polymethacrylate (component B) of 20.0wt%; 0.1wt% polyalpha-olefin ( Component C); 3.5% by weight of sulfurized isobutylene (component D); 0.7% by weight of dialkyl trithiophosphate and 0.7% acidic phosphate stearylamine salt (component E); 0.2% by weight of benzene Paratriazole (component F); 0.5 wt% boronated succinimide (component G); 1.5 wt% boronated olein (component H). The evaluation results of composition (XII) are listed in Table 3.

[0036] Table 3 Composition (XII) Evaluation Results

[0037]

[0038] The experimental results show that the lubricating oil composition (XII) not only passed the four gear racks of L-42, L-37, L-33, and L-60, but also reached the specification index of GB 13895-92 (API GL-5), Moreover, it has also passed the adaptability test with sealing materials, FZG gear machine test, L-60-1 bench, Mack cycle bench and car manu...

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Abstract

The invention provides an energy-efficient vehicle gear lubricating oil composition, which contains (A) at least a highly refined mineral oil with high viscosity index, or polyolefin cogasin, or ester cogasin, or random combination of the above components; (B) at least a viscosity-index improver; (C) at least a pour-point depressant; (D) at least a sulfur-containing extreme pressure additive; (E) at least a phosphorus-containing antiwear additive; (F) at least a metal deactivation additive; (G) at least an antirust additive; and (H) at least an energy-saving friction-reducing agent. The above lubricating oil composition has excellent energy-saving antifriction performance. Through the test evaluation of FZG gear drive efficiency, the lubricating oil composition provided by the invention can be used to raise transmission efficiency by 5-15% in comparison with commercial vehicle gear oil.

Description

(1) Technical field [0001] The invention relates to a lubricating oil composition, in particular to an energy-saving lubricating oil composition used in a vehicle gear transmission system, and belongs to the technical field of gear lubricating oil and lubricating oil additives. (2) Background technology [0002] In recent years, with the expansion of social production scale, worldwide oil shortage and rising fuel prices, the energy crisis has become increasingly serious, and energy conservation and environmental protection have become one of the topics of worldwide concern. The selection of energy-saving lubricating oil can achieve significant energy-saving effects, making the vehicle transmission and drive axle gears in a mixed lubrication state with both elastohydrodynamic lubrication and boundary lubrication, so as to achieve the purpose of energy saving and consumption reduction. [0003] Vehicle gear oil is used in the transmission parts of various vehicles to reduce fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/10C10N30/06C10N30/12C10N40/04
Inventor 伏喜胜糜莉萍华秀菱
Owner PETROCHINA CO LTD
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