EvaluationMethods and Research Progress of Engine Lubricating Oil Deposits
During engine operation,the lubricating oil within the engine undergoes a series of complex chemical changes that can lead to the accumulation of a certain amount of deposits on engine components.In order to accurately quantify and identify the type and a-mount of these deposits,the engine is disassembled and the deposits are evaluated using a specific scoring method.Since the scoring of deposits is subjective,it is necessary to standardize all the details involved in the scoring process and the calculation of the scoring re-sults through a standard method,so as to realize the objectivity of the subjective scoring and thus ensure the consistency of the scoring results.This paper mainly introduces the evaluation methods of engine lubricant deposits in domestic and international standards,in-cluding the types of deposits,scoring requirements and calculation methods of the results,aiming to provide detailed references for practitioners in the lubricant industry,and help them evaluate the performance of engine lubricants and their deposit conditions more accurately and efficiently in their practical work.
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