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Additive composition of engine oil and application thereof

An engine oil and composition technology, applied in the directions of additives, lubricating compositions, petroleum industry, etc., can solve the problems of phosphorus and sulfur content, the inability to balance the anti-wear performance and the cost of the additive composition, and improve the anti-wear performance and effect. significant effect

Inactive Publication Date: 2017-06-30
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The main purpose of the present invention is to provide an engine oil additive composition and its application, to overcome the deficiencies in the prior art that the phosphorus and sulfur content of the engine oil additive composition, anti-wear performance and additive composition cost cannot be balanced

Method used

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  • Additive composition of engine oil and application thereof
  • Additive composition of engine oil and application thereof
  • Additive composition of engine oil and application thereof

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Embodiment Construction

[0030] The embodiments of the present invention are described in detail below: the present embodiment is implemented under the premise of the technical solution of the present invention, and detailed implementation methods and processes are provided, but the protection scope of the present invention is not limited to the following embodiments, the following The experimental method that does not indicate specific condition in the embodiment, generally according to routine condition.

[0031] Engine Oil Additive Composition:

[0032] In the present invention, the components and weight content of the engine oil additive composition are limited to: 15-40% of sulfonate detergent, 15-40% of sulfurized alkylphenate detergent, zinc dialkyl dithiophosphate anti-oxidant 20-40% anti-corrosion agent, and base oil as the balance. If the proportion of detergent is too low, it cannot ensure that the oil can effectively clean and dissolve the oil sludge, sediment, acidic substances, etc. gen...

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Abstract

The invention discloses an additive composition of engine oil and application thereof. The additive composition is prepared from the following components in percentage by weight: 15 to 40% of sulfonate cleaning agent, 15 to 40% of alkyl monosulfide phenate cleaning agent, 20 to 40% of zinc dialkyl dithiophosphate anti-oxidizing and anti-corrosive agent, and the balance of base oil. The weight percentage of the additive composition accounts for 1 to 6% of the weight of the engine oil in the adding process. The additive composition has the advantages that the additive composition is suitable for the high-grade energy-saving and environment-protection type light-load engine oil with limitation of sulfur and phosphor contents, the risk of abrasion increasing of the lubricating oil due to decreasing of phosphor content is effectively inhibited, and the influence to the other properties and total cost of the oil product is very small.

Description

technical field [0001] The invention relates to an engine oil additive composition, in particular to an additive composition for improving the antiwear performance of engine oil under low phosphorus and sulfur content. Background technique [0002] Engine oil is a lubricating oil used to lubricate the moving parts of the engine crankcase. Engine oil not only lubricates the friction pairs and prevents wear, but also cools, cleans and seals the engine. Engine oil consists of base oil and additives. The base oil is mainly refined mineral oil, synthetic oil or a mixture of refined mineral oil and synthetic oil. Additives include detergents, dispersants, antioxidants, antiwear agents, friction modifiers, viscosity index improvers, pour point depressants, corrosion and rust inhibitors, etc. [0003] In order to meet the increasingly stringent vehicle emission regulations, automobile manufacturers generally use exhaust after-treatment devices to purify the toxic and harmful subs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/10C10M135/10C10M135/30C10M137/10C10N30/06C10N40/25
CPCC10M135/10C10M135/30C10M137/10C10M141/10C10M2219/044C10M2219/046C10M2219/087C10M2219/089C10M2223/045C10N2030/06C10N2040/25C10N2010/04
Inventor 曹聪蕊刘功德于军佘海波
Owner PETROCHINA CO LTD
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