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Special lubricating oil for engines and preparation method of special lubricating oil

An engine and lubricating oil technology, applied in the field of lubricating oil, can solve the problems of large lubrication resistance, increased fuel consumption, burning engine oil, etc., and achieve the effects of low evaporation loss, sufficient performance and long service life

Active Publication Date: 2015-09-30
重庆现代石油股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing conventional oil products are good for a certain vehicle, but may burn engine oil on vehicles with large engine clearances; or simply provide high-viscosity lubricating oil, which can solve the problem of engine oil burning, but the viscosity is too high High and lead to excessive lubrication resistance, increased fuel consumption

Method used

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  • Special lubricating oil for engines and preparation method of special lubricating oil
  • Special lubricating oil for engines and preparation method of special lubricating oil
  • Special lubricating oil for engines and preparation method of special lubricating oil

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preparation example Construction

[0043] The present invention also provides a preparation method of engine special lubricating oil, comprising:

[0044] a) After heating a part of the composite base oil, pre-mix it with a composite anti-oxidant and anticorrosion agent, a composite detergent, a dispersant, a metal deactivator, an antirust agent and polymethacrylate to obtain a semi-finished product;

[0045] b), the semi-finished product obtained in the above steps is mixed again with another part of the composite base oil, and after spraying the antifoaming agent simultaneously, the mixed semi-finished product is obtained;

[0046] c), continue mixing the mixed semi-finished product obtained in step b), and obtain the special lubricating oil for the engine after filtering.

[0047] In the above-mentioned preparation method of the present invention, the preferred principle and the added amount of the raw materials used are consistent with the preferred principles and added amount in the above-mentioned engine ...

Embodiment 1

[0057] According to the mass percentage in Table 1, take the raw material of engine special lubricating oil.

[0058] Table 1 The mass percent composition of the raw materials used in Example 1

[0059]

[0060]

[0061] First, pump the alkylnaphthalene and hydrogenated base oil into the blending tank according to the above ratio, stir and mix to obtain the composite base oil, and heat to 50°C at the same time.

[0062] Then put a part of the composite base oil into the ground pond, and while putting it into the ground pond, add compound anti-oxidant and anti-corrosion agent, compound detergent, compound ashless dispersant, metal deactivator, high-performance anti-corrosion agent according to the above ratio Rust agent and polymethacrylate, fully and evenly stirred and pre-mixed to obtain a semi-finished product.

[0063] Then pump the above-mentioned semi-finished product into the blending kettle, mix it with another part of composite base oil, and spray anti-foaming a...

Embodiment 2

[0089] According to the mass percentage in Table 7, take the raw material of engine special lubricating oil.

[0090] Table 7 The mass percent composition of raw materials used in embodiment 2

[0091]

[0092] First, pump the alkylnaphthalene and hydrogenated base oil into the blending tank according to the above ratio, stir and mix to obtain the composite base oil, and heat it to 55°C at the same time.

[0093] Then put a part of the composite base oil into the ground pond, and while putting it into the ground pond, add compound anti-oxidant and anti-corrosion agent, compound detergent, compound ashless dispersant, metal deactivator, high-performance anti-corrosion agent according to the above ratio Rust agent and polymethacrylate, fully and evenly stirred and pre-mixed to obtain a semi-finished product.

[0094] Then pump the above-mentioned semi-finished product into the blending kettle, mix it with another part of composite base oil, and spray anti-foaming agent at th...

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Abstract

The invention provides special lubricating oil for engines and a preparation method of the special lubricating oil. The special lubricating oil comprises the following components by weight: 78-83 parts of compound base oil, 1.5-3.0 parts of one or two compound oxidation and corrosion inhibitors, 5.0-8.0 parts of a compound detergent, 4.0-6.0 parts of a dispersant, 0.06-0.1 part of one or two metal passivators, 0.05-0.3 part of one or two antirust agents, 0.0005-0.002 part of one or two anti-foaming agents and 1.5-3.0 parts of polymethacrylate. The prepared special lubricating oil has the advantages that the oil film thickness can be automatically adjusted, the shearing-resistant property is higher, and the low-temperature fluidity and the low-temperature starting performance are relatively high.

Description

technical field [0001] The invention relates to the field of lubricating oil, in particular to a special lubricating oil for engines and a preparation method thereof. Background technique [0002] With the rapid development of the automobile industry, my country has become a big country in the production and consumption of automobiles, and the sales of automobiles are still growing continuously. Therefore, in today's increasingly deepened environment-friendly and energy-saving economy and sustainable development strategy, automobile fuel economy and energy conservation and emission reduction issues have also attracted great attention in various related technical fields. [0003] From the perspective of the power structure of the car, the car engine is the engine that provides power for the car and is the heart of the car, which affects the power, economy and environmental protection of the car. Generally speaking, according to the power source of the car, the car engine can...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M111/06C10M105/06C10M145/14C10N40/25C10N30/10C10N30/06
Inventor 余永峰刘利
Owner 重庆现代石油股份有限公司
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