Influence of temperature on cam-tappet lubrication in an internal combustion engine

doi:10.1007/s11465-007-0085-8

Front. Mech. Eng.

2007, Vol. 2

Issue (4) : 489-492 https://doi.org/10.1007/s11465-007-0085-8

Influence of temperature on cam-tappet lubrication in an internal combustion engine

CHANG Qiuying¹, YANG Peiran², WANG Jing², CHEN Quanshi³

1.School of Mechanical, Electronic and Engineering, Beijing Jiaotong University, Beijing 100044, China; 2.Department of Mechanical Engineering, Qingdao Technological University, Qingdao 266033, China; 3.State Key Laboratory of Automobile Safety and Energy, Tsinghua University, Beijing 100084, China;

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Abstract The transient thermo-elastohydrodynamic (TEHL) lubrication simulation and isothermal elastohydrodynamic (EHL) simulation were performed on the exhausting cam-tappet friction pair of an internal combustion engine. Although by employing the two models the center pressure, the thickness of the lubricant film and friction coefficient obtained were similar in the changing trend during a rotating cycle, the parameters make a great difference, especially for the thickness of the lubricant film; the TEHL was four times thicker than the EHL. These results show that the temperature should not be neglected in the study of the lubrication of cam-tappet pairs.

Issue Date: 05 December 2007

Cite this article:

CHANG Qiuying,YANG Peiran,CHEN Quanshi, et al. Influence of temperature on cam-tappet lubrication in an internal combustion engine[J]. Front. Mech. Eng., 2007, 2(4): 489-492.

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https://academic.hep.com.cn/fme/EN/10.1007/s11465-007-0085-8
https://academic.hep.com.cn/fme/EN/Y2007/V2/I4/489

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