期刊
INTERNATIONAL JOURNAL OF ENGINE RESEARCH
卷 23, 期 8, 页码 1295-1307出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/14680874211014669
关键词
Power loss; surface texture; cylinder deactivation; ring-liner system
资金
- National Natural Science Foundation of China [52075438]
- Key Research and Development Program of Shaanxi Province of China [2020GY-106]
- Open Project of State Key Laboratory for Manufacturing Systems Engineering [sklms2020010]
The study considers a surface texture method to improve the frictional performance of the ring-liner system under cylinder deactivation conditions. Results show significant improvements in friction properties with surface texture, leading to notable decreases in total average friction loss and power loss for a six-cylinder gasoline engine.
In this study, a method of surface texture is considered to improve the frictional performance of the ring-liner system (i.e. RLS) under the conditions of cylinder deactivation (i.e. CDA). To assess the effectiveness of the method, a lubrication model is developed with considerations of the liner deformation, the actual rheological properties of lubricant, and the lubricant transport. By solving the model numerically, the friction reduction effect of surface texture for the RLS under the CDA is investigated. The results show that the surface texture can improve the friction properties significantly. For a six-cylinder gasoline engine, 7.57% and 7.28% decreases in the total average friction loss and power loss are observed when the RLS under the CDA is surface textured.
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