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A Study of Abnormal Wear in Power Cylinder of Diesel Engine with EGR - Wear Mechanism of Soot Contaminated in Lubricating Oil
Technical Paper
2000-01-0925
ISSN: 0148-7191, e-ISSN: 2688-3627
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Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
Exhaust-gas recirculation (EGR) causes the piston ring and cylinder liners of a diesel engine to suffer abnormal wear. The present study aimed at making clear the mechanism of wear which is induced by soot in the EGR gas. The piston ring has been chrome plated and the cylinder was made of boron steadite cast iron. Detailed observations of the ring sliding surfaces and that of the wear debris contained in lubricating oil were carried out.
As a result, it was found that the wear of the top ring sliding surfaces identify abrasive wear without respect to the presence of EGR by steadite on the cylinder liner sliding surface. In addition, it is confirmed in a cutting test that soot mixed lubricating oil improved in performance as cutting oil. Based on these results, we proposed the hypothesis in the present study that ring wear is accelerated at EGR because abrasive wear increases due to a lot of soot mixed into lubricating oil improving the performance of lubricating oil as cutting oil.
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Citation
Ishiki, K., Oshida, S., Takiguchi, M., and Urabe, M., "A Study of Abnormal Wear in Power Cylinder of Diesel Engine with EGR - Wear Mechanism of Soot Contaminated in Lubricating Oil," SAE Technical Paper 2000-01-0925, 2000, https://doi.org/10.4271/2000-01-0925.Also In
References
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- Masaaki, Takiguchi. Mitsuru, Urabe. kazuya, Ishiki. “A Study of Abnormal Wear in Power Cylinder of diesel Engine with EGR-Behavior of soot contained-” The 15th Internal combustion symposium 1999