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Composition of top grade gasoline and engine oil

A technology of composition and lubricant composition, which is applied in the field of hydrogenated oil type lubricating composition and gasoline engine oil composition, to achieve the effect of excellent low-temperature sludge dispersion performance

Inactive Publication Date: 2006-01-18
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In the above-mentioned documents and patents, none of the documents discloses a composition that meets the API SH standard for hydrogenated base oils

Method used

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  • Composition of top grade gasoline and engine oil
  • Composition of top grade gasoline and engine oil
  • Composition of top grade gasoline and engine oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A SH gasoline engine oil with a viscosity grade of 10W / 40 was prepared, and the data obtained therefrom are shown in Table-1.

[0041] Example

experiment method

Group

Minute

%

Sulfonate Metal Detergent

Bisanhydride type succinimide ashless dispersant

ZDDP and Amine Antioxidants

polyalphaolefin pour point depressant

Ethylene Propylene Copolymer

HVI125N and HVI120BS

3.0

5.5

2.0

0.3

8.5

80.7

comment

Certainly

Knot

fruit

Plate coke generator test (1) coke weight, mg

TFOUT trial (2) induction period, divided into

SDT test (3) mud spots / oil spots, %

Cam tappet wear test (40) weight loss, mg

Engine Test (5)

Shear stability (L-38 running 10h)

Viscosity at 100°C, mm 2 / s

Bearing Corrosion Test (L-38 Method)

Bearing weight loss, mg

Program II...

Embodiment 2

[0050] Prepare a SH-grade gasoline engine oil with a viscosity grade of 15W / 40, see Table-2 for relevant data.

[0051] Example

[0052] Note: with embodiment one

Embodiment 3

[0054] Prepare an SH-grade gasoline engine oil with a viscosity grade of 30, and see Table-3 for relevant data.

[0055] Example

[0056] Note: with embodiment one

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PUM

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Abstract

The present invention relates to a gasoline engine luboil composition which can meet the lubricating requirement of gasoline engine with high compression ratio. Said luboil composition has excellent lubricating property, low-temp. sludge dispersing property, piston cleaning property, antioxidant corrosion-resisting property and antiwear property. Said luboil composition includes base oil, freeze-point depressant, viscosity index improver, metal cleaning agent, ashless dispersing agent and antoxidant corrosion-resisting agent. Said luboid composition can meet the specification index of APISH and SAEJ300.

Description

(1) Technical field [0001] The invention relates to a gasoline engine oil composition, especially a lubricant composition capable of meeting the lubricating requirements of a gasoline engine with a relatively high compression ratio, which should have excellent cleaning performance, sludge dispersion performance, anti-wear, anti-oxidation and anti-corrosion performance. The present invention belongs to the category of hydrogenated oil type lubricating compositions. (2) Background technology [0002] In order to ensure the normal operation of the engine, low friction and wear and long service life, the engine oil should have good lubricating and anti-friction effects, cooling engine parts, sealing the combustion chamber, and keeping the lubricating parts clean, especially when starting It can prevent the formation of low-temperature sludge and the deposition of paint film, prevent rust and corrosion under the condition of starting and stopping, and the composition involved in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M149/02C10M101/02
Inventor 李桂云李军刘岚
Owner PETROCHINA CO LTD