Long-acting super engine lubricating oil

Abstract

The invention discloses long-acting super engine lubricating oil; the lubricating oil is composed of III-type hydrogenated oil, a pour point depressant, a complexing agent, a viscosity index improverand high-base-number sulfurized calcium alkyl phenolate; the lubricating oil is composed of the following components in parts by weight: 60-85 parts of III-type hydrogenated oil, 0.1 to 0.5 part of apour point depressant; 18 to 23 parts of a complexing agent; 8-12 parts of a viscosity index improver; and 0.1-0.5 part of high-base-number sulfurized calcium alkyl phenolate. According to the invention, the proportion of heavy components in the III-type hydrogenated base oil is increased, a proper proportion is adjusted to enable the low-temperature dynamic viscosity (CCS) to be close to an upperlimit value; meanwhile, the high-base-number sulfurized calcium alkyl phenolate is supplemented, the base number of the product can be effectively increased, the base retentivity is improved, the acid value control performance is improved, and compared with similar products, the evaporation loss can be reduced by 20%, the oil supplementing amount is reduced, the oil changing period can reach 100,000 kilometers, and the maintenance cost of a user is reduced.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to long-acting super engine lubricating oil. Background technique [0002] An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. The engine needs to be matched with lubricating oil use, but the existing lubricating oil has too much evaporation loss and needs to add too much during the service cycle, which not only increases the cost of use for the user, but also easily causes wear and tear on the engine if the oil is not added in time. At the same time, Its alkali value consumes quickly, and the increase of acid value brings about the increase of oxides and serious sludge and carbon deposition. For this reason, we propose a long-term super engine lubricating oil. Content...

AI Technical Summary

Problems solved by technology

[0002] An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. The engine needs to be matched with lubricating oil use, but the existing lubricating oil has too much evaporation loss and needs to add too much during the service cycle, which not only increases the cost of use for the user, but also easily causes wear and tear on the engine if the oil is not added in time. At the same time, Its alkali value consumes quickly, and the increase of acid value brings about the increase of oxides and serious sludge and carbon deposition. Therefore, we propose long-term super engine lubricants