Engine lubricating oil composition

A kind of lubricating oil composition, technology of diesel engine, applied in the field of lubricating oil

Inactive Publication Date: 2004-12-22
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are no Chinese patents related to API CF grade oil.

Method used

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  • Engine lubricating oil composition
  • Engine lubricating oil composition
  • Engine lubricating oil composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Prepare a full-component 15W / 40CF diesel engine oil, which contains modified alkyl salicylate calcium, mixed matrix metal detergent (or high alkali value alkyl salicylate calcium), sulfurized alkyl phenate calcium, dienyl butyl Diimide ashless dispersant, zinc dialkyldithiophosphate. The data thus obtained are listed in Table 1.

[0038] Comparative example 1

[0039] Note: The base oil is hydrotreated base oil compounded with an appropriate amount of pour point depressant, antifoaming agent and viscosity index improver.

Embodiment 2

[0041] Prepare a full-component 15W / 40CF diesel engine oil, which contains modified alkyl calcium salicylate, mixed matrix metal detergent (high base value calcium sulfonate), sulfurized alkyl phenate calcium, and dienyl succinimide , zinc dialkyldithiophosphate and phenolic auxiliary antioxidant. The data thus obtained are listed in Table 2.

[0042] Comparative example 2

Embodiment 3

[0044]Prepare a full-component 15W / 40CF diesel engine oil, which contains modified alkyl calcium salicylate, mixed matrix metal detergent, sulfurized alkyl phenate calcium, dienyl succinimide, dialkyl dithiophosphoric acid Zinc and phenolic secondary antioxidants. The data thus obtained are listed in Table 3.

[0045] Comparative example 3

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PUM

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Abstract

The present invention relates to one kind of composite engine lubricating oil, and is especially one for diesel engine. It features its containing great amount of hydrogenated base oil. It also contains proper amount of modified salicylate, mixed matrix metal detergent, alkyl phenolate sulfide, ashless dibutyl diimide dispersant, dialkyl dithiophosphate zinc and phenol type co-antioxidant. The composite engine lubricating oil can meet the lubricant requirement of API CF diesel engine and has simple formula, low cost and easy compounding.

Description

(1) Technical field [0001] The invention relates to an engine lubricating oil composition, in particular to a lubricating oil composition for a diesel engine, and belongs to the technical field of lubricating oil. The composition has excellent high-temperature detergency, dispersibility, anti-oxidation and anti-corrosion properties and anti-wear properties, and can meet the specification requirements of API CF diesel engine oil. (2) Background technology [0002] Due to the different national conditions in my country and foreign countries, the requirements for lubricating oil in the automobile and engine manufacturing industries are also obviously different from those in foreign countries. The demand for medium and low-end (SD, CC) engine oil still accounts for about 50% of the total engine oil. However, with the development of my country's automobile industry, it is expected that the demand for CF and other high-grade lubricating oils will continue to grow at a rate of 3-5%...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M161/00
Inventor 汤仲平孙丁伟荆海东
Owner PETROCHINA CO LTD
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