期刊
INTERNATIONAL JOURNAL OF ENGINE RESEARCH
卷 24, 期 2, 页码 336-359出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/14680874211047923
关键词
Thermal effect; starved lubrication; surface texturing; marine diesel engine; piston ring-cylinder liner
The thermal effect of friction is significant in the PRCL system of two-stroke marine diesel engines. It affects the tribological characteristics of the system and the design of groove textures can help reduce friction and wear.
The thermal effect of friction plays an important role in friction pairs working under heavy load and starved lubrication conditions, such as the piston ring and cylinder liner (PRCL) system of two-stroke marine diesel engines. Friction heat will degrade the lubrication and increase the scuffing risk. In this study, considering the thermal effect of friction, the tribological characteristics of the top ring and cylinder liner of a two-stroke marine diesel engine under starved lubrication are studied. It is found that the temperature rise due to friction is significant and has a strong influence on the tribological characteristics of the PRCL system. Moreover, based on the orthogonal test method, the effects of groove textures under different oil supplies are also explored. Only well-designed groove textures can reduce friction and wear at the same time.
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