抄録
Increase of soot contaminated in engine oil caused by EGR system accelerates diesel engine wear, especially valve train wear. In order to evaluate the wear of valve train parts mainly caused by abrasive wear, a rig test (Shell-4-ball-tester) has been conducted by using oil that contained the carbon black. In this study, the standard oil that contained a similar carbon black to the wear characteristic of the engine soot was developed.
