Marine diesel engine oil composition and application thereof

Abstract

The invention relates to a marine diesel engine oil composition and application thereof; the composition is prepared from, by weight, 1-15 parts of at least one of sulfonate and sulfurized alkyphenate a); 1-10 parts of at least one of polymer ashless dispersant, succinimide dispersant or boronized ashless dispersant b); 1-10 parts of at least one of amine antioxidant, phenol antioxidant, thiophene antioxidant or carbamate antioxidant c); 0.05-1 part of at least one of poly-alpha-olefin or polymethacrylate d); 0.01-1 part of at least one of methyl silicone oil or fluorosilicone oil anti-foaming agents e); 50-95 parts of at least one of HVI type I basic oil or HVI type II basic oil; the composition is not less than 4000 ppm in calcium content and not less than 1000 ppm in nitrogen content. The composition is applicable to the lubrication of marine engines.

Description

technical field [0001] The invention relates to a marine diesel engine oil composition and its application. Background technique [0002] With the increase in size and power of ships, the high sulfur and low quality of main engine fuel and the use of advanced marine engines, at the same time, in order to meet the legislation and index requirements of safety, reliability, economy, environmental protection and energy saving of ships, marine engines The performance of lubricating oil has put forward higher and more stringent requirements. [0003] In order to meet the normal operation requirements of marine diesel engines, marine diesel engine oils need to have good quiet dispersibility, anti-oxidation, anti-wear properties, acid neutralization and thermal oxidation stability. At the same time, because marine diesel engine oil is used in an environment that is easy to contact with water for a long time, marine diesel engine oil also needs to have good water washing resistance....

AI Technical Summary

Problems solved by technology

[0005] Document CN103289795A discloses a marine engine oil composition mainly used to solve the problem of poor water washing resistance of marine engine oil in the prior art. The amount of detergent, dispersant or mixture thereof is 1-40 parts, The dosage of amine compound is 1-20 parts, the dosage of ether compound is 1-20 parts, the dosage of anti-rust agent is 1-10 parts, the dosage of anti-foaming agent is 1-10 parts, and the dosage of base oil is 20 parts. ~70 copies

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