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Insight into Effect of Blow-By Oil Mist Deposits on Turbocharger Performance Deterioration in a Diesel Engine
Technical Paper
2019-26-0340
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Stringent emission legislations increase the significance of emission reduction through crankcase ventilation systems in combustion engines. Oil mist separation efficiency of the CCV systems directly impacts the emissions of diesel engines. The CCV systems retain the oil with soot and carbon particles and return them to the oil sump. CCV thus reduces engine oil consumption and emissions. Contemporary technology enables usage of highly efficient CCV systems. However, the filtration efficiency of the CCV system is limited to keep crankcase pressure under limits. Oil particles which escape from CCV system result in soot deposit on turbocharger compressor leading to deterioration of turbocharger performance. Performance variation of turbocharger has a substantial impact on engine emissions. Therefore, it is essential to understand the effect of CCV system design and different engine operating conditions which accelerate the Oil mist deposits on turbocharger Compressor. This paper discusses significant parameters of the turbocharger and the CCV which cause the phenomenon of oil mist deposit which and its impact on the turbocharger performance.
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Lakshmanan, M., Maddali, V., Natrajan, R., Muthyam, R. et al., "Insight into Effect of Blow-By Oil Mist Deposits on Turbocharger Performance Deterioration in a Diesel Engine," SAE Technical Paper 2019-26-0340, 2019, https://doi.org/10.4271/2019-26-0340.Data Sets - Support Documents
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References
- US EPA 2004
- Zimmerman , N.J. , Hill , L.B. , and Gooch , J. 2005
- US EPA 2006
- Sumi , N. , Hirano , S. , Fujimoto , K. , Nakajima , T. et al. Influence of Engine Oil Properties on Soot Containing Deposit Formation in Turbocharger Compressor SAE Technical Paper 2013-01-2500 2013 10.4271/2013-01-2500