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General internal combustion engine oil composition

A lubricating oil composition and composition technology, applied in the field of lubricating oil

Inactive Publication Date: 2011-07-13
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] There is no patent disclosure about a lubricating oil composition meeting the SJ / CD general internal combustion engine oil specification requirements specified in GB11122-2006 and GB11121-2006

Method used

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  • General internal combustion engine oil composition
  • General internal combustion engine oil composition
  • General internal combustion engine oil composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1: Prepare a full-component 5W-30SJ / CD internal combustion engine oil, its formula composition and the data obtained thereby are listed in Table 1.

[0052] Table 1

[0053]

GB11122-2006, GB11122-2006

(5W-30SJ / CD quality index)

Example 1

experiment method

Component, %

(parts by mass

number)

Alkyl Salicylate Metal Detergent

Sulfurized alkylphenate metal detergent

Sulfonate Metal Detergent

Polyisobutenyl bis-succinimide ashless dispersant

Polymer Ashless Dispersant

Zinc Dialkyl Dithiophosphate

Sulfur-containing phenolic antioxidants

Naphthylamine Antioxidant

OCP type viscosity index improver

Polymethacrylate pour point depressant

HVIWH150 and HVIWH75`

-

2.0

1.0

1.5

2.5

2.5

1.5

1.0

1.0

7.5

0.3

margin

[0054]

The viscosi...

Embodiment 2

[0060] A full-component 10W-40SJ / CD internal combustion engine oil was prepared, and its formula composition and the data obtained therefrom are listed in Table 2.

[0061] Table 2

[0062]

[0063]

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PUM

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Abstract

The invention relates to an engine lubricating oil composition, in particular to a lubricating oil composition for heavy-duty diesel engines and high-compression ratio gasoline engines. The lubricating oil composition can meet the SJ / CD general internal combustion engine oil specification requirements specified in GB11122-2006 and GB11121-2006. The lubricating oil composition contains a proper amount of metal detergents, an ashless dispersant, an antioxidant, anticorrosive and antiwear agent, a thiophenol antioxidant- and naphthylamine ashless antioxidant-containing auxiliary antioxidant mixture, a viscosity index improver, a pour point depressant and the balance of base oil. The composition has a simple formula and low cost and is convenient to prepare.

Description

(1) Technical field [0001] The invention relates to a general internal combustion engine oil composition, in particular to a lubricating oil composition for heavy-duty diesel engines and higher compression ratio gasoline engines, and belongs to the technical field of lubricating oils. (2) Background technology [0002] General oil for internal combustion engines refers to general lubricants for gasoline engines and diesel engines. From the perspective of the development trend of internal combustion engine oils in various countries, under the premise of ensuring quality and developing new products to meet market demand, energy-saving, long-life, multi-grade, and general-purpose oils have become the mainstream of today's internal combustion engine oil development. Due to the performance requirements of diesel engine oil and gasoline engine oil, general-purpose oil has a slightly higher additive dosage than non-general-purpose oil, and the cost is relatively higher. This is its...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M133/12C10M135/22C10N40/25C10N30/10C10N30/04
Inventor 汤仲平孙丁伟文斌荆海东金鹏张勤赵正华
Owner PETROCHINA CO LTD
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