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Diesel engine oil and preparation method thereof

A diesel engine and base oil technology, applied in the field of diesel engine oil and its preparation, can solve problems such as lubricating effect reduction, cylinder wear, acceleration equipment, etc., and achieve good anti-oxidation performance, good energy-saving effect, and great practical effect

Inactive Publication Date: 2020-10-30
天津内燃机研究所(天津摩托车技术中心)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional sulfur-phosphorus lubricating oil additives are easy to decompose at high temperature, resulting in reduced lubrication effect and accelerated wear of equipment, cylinders and other equipment

Method used

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  • Diesel engine oil and preparation method thereof
  • Diesel engine oil and preparation method thereof
  • Diesel engine oil and preparation method thereof

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preparation example Construction

[0038] The invention also discloses a preparation method of diesel engine oil, comprising:

[0039] Mix the components of the above diesel engine oil except the base oil, add them into the base oil at a certain temperature, and stir to obtain the diesel engine oil.

[0040] In some embodiments of the present invention, the stirring time is 1 to 3h;

[0041] In some embodiments of the present invention, the stirring method includes mechanical stirring or pulse stirring;

[0042] In some embodiments of the present invention, the certain temperature is 55 to 65°C.

[0043] In an exemplary embodiment, the technical scheme adopted in the present invention is as follows: a formula of engine oil, gasoline and engine oil, each component is calculated by weight percentage, and includes the following components:

[0044] 1) Detergent 2-4%: The detergent used is one or a combination of two or more of synthetic calcium sulfonate, sulfurized alkylphenate calcium, and alkyl salicylate cal...

Embodiment 1

[0057] In this embodiment, the components of the diesel engine oil are blended according to the mass fraction ratio, and the viscosity grade is 15W-40, specifically:

[0058] Group II base oil: viscosity is 150N, content is 41.4%;

[0059]Group II base oil: viscosity is 600N, content is 36%;

[0060] Group I base oil: viscosity is 150BS, content is 5.5%;

[0061] Viscosity index improver: ethylene propylene rubber type, the content is 9%;

[0062] Detergent 1: calcium salicylate with a high alkali value (alkali value greater than 265 mgKOH / g), with a content of 1.6%;

[0063] Detergent 2: calcium sulfonate with high alkali value (alkali value greater than 295mgKOH / g), the content is 0.5%;

[0064] Detergent 3: Calcium salicylate with medium alkali value (alkali value greater than 145mgKOH / g), with a content of 1.2%;

[0065] Dispersant 1: Polymer ashless dispersant with a content of 2.8%;

[0066] Antioxidant 1: zinc dialkyl dithiophosphate, content is 1%;

[0067] Antio...

Embodiment 2

[0073] In this embodiment, the components of the diesel engine oil are blended according to the mass fraction ratio, and the viscosity grade is 10W-30, specifically:

[0074] Group II base oil: viscosity is 150N, content is 39.7%;

[0075] Group II base oil: viscosity is 500N, content is 15%;

[0076] Group III base oil: viscosity is 100N, content is 30%;

[0077] Viscosity index improver: polyhydrogenated styrene isoprene type, the content is 7%;

[0078] Detergent 1: high alkali value calcium sulfonate (alkali value greater than 295mgKOH / g), the content is 2%;

[0079] Detergent 2: medium alkali value sulfurized alkylphenate calcium (alkali value greater than 145mgKOH / g), the content is 1.4%;

[0080] Dispersant 1: boronated succinimide, the content is 2.5%;

[0081] Antioxidant 1: zinc dialkyldithiophosphate, the content is 1.2%;

[0082] Antioxidant 2: alkyl diphenylamine, the content is 0.5%;

[0083] Friction modifier: modified nano-lanthanum fluoride particles, th...

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Abstract

The invention relates to diesel engine oil and a preparation method thereof, and the diesel engine oil comprises the following components in percentage by mass: 2-4% of a detergent; 2-3% of a dispersant; 0.5 to 2% of an antioxidant; 6-11% of a viscosity index improver; 0.1 to 0.4% of a pour point depressant; 0.1 to 0.5% of a friction modifier; 0.001 to 0.005% of an anti-foaming agent; and the balance of base oil. The diesel engine oil provided by the invention has good oil-saving capacity, and the oil-saving rate is 5.8% or above; the diesel engine oil provided by the invention has better oxidation resistance, better wear resistance and better energy-saving effect, and has great practicability, feasibility and great economic value.

Description

technical field [0001] The invention belongs to the field of engine oil, and in particular relates to a diesel engine oil and a preparation method thereof. Background technique [0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. It mainly plays the roles of lubrication, cooling, rust prevention, cleaning, sealing and buffering. [0003] With the promulgation and full implementation of national energy conservation and environmental protection regulations, the formulation of fuel consumption limits for commercial vehicles, at the same time, with the rapid growth of the heavy truck and bus market, diesel engine oil that meets the needs of heavy trucks and buses for energy saving and long oil change intervals It is the development direction of the diesel engine oil market in the future. [0004] The energy loss caused by friction in the combustion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N40/25C10N30/06C10N30/10
CPCC10M169/048C10M2201/081C10M2203/1006C10M2203/1025C10M2205/022C10M2205/024C10M2205/04C10M2205/06C10M2207/144C10M2209/084C10M2215/064C10M2215/086C10M2219/046C10M2223/045
Inventor 杨礼河郜鹏李良刘长光孙玉德
Owner 天津内燃机研究所(天津摩托车技术中心)
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