Totally-synthesized flame-resistant rolling lubrication internal combustion engine oil special for warship and preparation method of fully-synthesized flame-resistant rolling lubrication internal combustion engine oil

Abstract

The invention relates to the technical field of lubricating oil, in particular to full-synthesis flame-resistant rolling lubrication special internal combustion engine oil for warships and a preparation method of the full-synthesis flame-resistant rolling lubrication special internal combustion engine oil. The fully-synthetic flame-resistant rolling lubrication internal combustion engine oil special for warships is prepared from the following raw materials in parts by weight: 50 to 65 parts of synthetic base oil, 0 to 15 parts of ester oil, 7 to 9.5 parts of a clearing agent, 0.5 to 1.2 parts of an ashless dispersant, 0.3 to 1.3 parts of a high-temperature antioxidant, 1.5 to 4.5 parts of an anti-wear reagent at extreme pressure, 0.05 to 0.2 part of a friction modifier, 0.2 to 0.6 part of a pour point depressant, 10 to 15 parts of a viscosity index improver, 0.05 to 2.5 parts of an antioxidant and anti-gum agent and 0.03 to 0.15 part of an oil-soluble antirust agent. The problems existing in heavy-load power transmission internal combustion engine oil of a traditional warship are solved, the requirements for high-speed impact load, high temperature and high pressure resistance and high acid neutralization capacity of an engine are met, and the oil has high abrasion resistance and oxidation resistance.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a fully synthetic anti-combustion rolling lubrication special internal combustion engine oil for warships and a preparation method thereof. Background technique [0002] With the development of diesel engine technology, marine diesel engines have made significant progress in terms of performance, reliability, and ship installation technology. The power of a single engine is more than 30% higher than that of the same type of engine in the past, and the maximum power is between 7750kW and 9705kW. The main technical indicators of diesel engines have reached a higher level, the average effective pressure is as high as 2.94MPa, some as high as 3.02MPa, the maximum combustion pressure is 18MPa, and the medium and high speed engine is 15MPa; In addition to good anti-rust performance, it also has excellent water separation performance. In terms of use function, warship diesel eng...

AI Technical Summary

Problems solved by technology

However, the kinematic viscosity of traditional diesel engine oil is only between 12.5 and 16.3 centistokes. These oils suffer from fuel combustion and high temperature and high pressure impacts in the engine, and have shortcomings such as insufficient fuel film resistance, easy oxidation to form sludge, and carbon deposits. It also aggravates the friction and wear of the engine, increases fuel consumption and shortens the service life

Moreover, the lubricating effect of the engine will be reduced after fuel combustion and high temperature and high pressure impact during reciprocating motion, and the replacement time will be long. The quality of the anti-fuel film needs to be improved when adding it. Adverse consequences such as drop, increased wear, increased gap, increased fuel consumption, etc. At the same time, the mismatch between excessive fuel and internal air pressure will also affect the improvement of engine power and produce more harmful particles such as nitrogen oxides

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