Browse Publications Technical Papers 2019-01-0591
2019-04-02

The Influence of IC Engine Working Condition on the Lubrication Characteristics of Piston Ring 2019-01-0591

The lubrication analysis of IC engine piston ring is usually carried out under engine rated working condition. In actual use, the IC engine (especially the vehicle engine) does not always operate in rated working condition, and its working condition will be changed frequently. In this paper, an IC engine is taken as the studying object, based on the measured gas pressure in the engine cylinder, the lubrication characteristics of piston ring under different engine working conditions is analyzed in which the transport of lubricating oil between the piston ring and the cylinder liner is considered. The results indicate that the engine working condition has remarkable influence on the lubrication characteristics of IC engine piston ring. The worst lubrication status of piston ring may not occurred in the engine rated working condition. Therefore, it is not enough comprehensive and reasonable to analyze the lubrication of piston ring only under engine rated working condition, but its lubrication under different working conditions needs to be analyzed in the design of IC engine piston ring.

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