朱杨^1,2，王洪山^1,2，许成^1,2，傅晓磊^1,2

1.内燃机可靠性国家重点实验室，山东 潍坊  261061；2.潍柴动力股份有限公司，山东 潍坊  261061

摘要：分析导致柴油机活塞组积碳的原因，利用预测仿真分析技术，提出活塞润滑油积碳控制技术。结果表明：缸套温度高、活塞温度高和活塞环运动泵油是润滑油在活塞与活塞环摩擦副积碳形成并累积的原因；控制缸套温度、活塞环槽温度及活塞环运动可以避免形成积碳；动力学仿真技术可以精确预测活塞环的运动，为活塞环优化设计提供有效参考。

关键词：活塞；活塞环；积碳；温度；动力学仿真

Abstract：To avoid diesel engine piston carbon deposit, the cause of carbon deposit is analyzed, the carbon depositcontrol technology of piston oil is proposed. The results show that the high temperature of cylinder liner，piston，and oil pumping caused by piston ring movement are the main reason for oil-related carbon accumulation in the piston and piston ring friction pair. Carbon formation can be avoided by controlling the temperature of cylinder liner, piston ring groove and piston ring movement. Piston dynamics simulation technology can accurately predict the movement of piston ring and provide an effective method for optimal design of piston ring.

Keywords:piston; piston ring;carbon deposit; temperature;dynamic simulation