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http://dx.doi.org/10.9725/kstle.2007.23.3.095

Study on the Rotating Motion of a Piston Pin of Full Floating Type  

Chun, Sang-Myung (Dept. of Automotive Engineering, Hoseo University)
Publication Information
Tribology and Lubricants / v.23, no.3, 2007 , pp. 95-102 More about this Journal
Abstract
In recently designed diesel engines, the running conditions for piston pin bearings have become very severe due to combustion pressure and temperature increase. Moreover, the lead removal from the bush material has strongly reduced the capability of the anti friction material to accept asperity contacts. In this paper, before trying to find the pressure distributions on the oil film of piston pin bearings by the unsteady two dimensional thermohydrodynamic lubrication analysis in order to do the optimum design of the bearings of piston pin, it will be investigated the tendancy of piston pin rotating motion by calculating the friction coefficient at piston pin bearings, the oil film thickness and the frictional torques induced by hydrodynamic shear stress.
Keywords
piston pin of full floating type; rotating motion; friction coefficient; friction torque; piston pin boss; connecting rod small end;
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