This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Reduction of Diesel Particulate Matter by Oil Consumption Improvement Utilizing Radioisotope Tracer Techniques
Annotation ability available
Sector:
Language:
English
Abstract
A study was conducted to reduce unburned oil fractions in diesel particulate matter (PM) by improving oil consumption. A method utilizing radioisotope 14C was developed to measure the unburned oil fractions separately for the four paths by which oil is consumed: valve stem seals, piston rings, PCV system, turbocharger. The conversion ratio of oil consumption to PM was calculated by comparing the unburned oil emission rates with oil consumption rates, which were obtained by the use of the 35S tracer method. The result in an experimental diesel engine shows the highest conversion ratio for the oil leaking through the valve stem seals. The modifications to the engine were thereby focused on reducing the leakage of the stem seals. This stem seal modification, along with piston ring improvements, reduced oil consumption, resulting in the unburned oil fractions in PM being effectively reduced.
Recommended Content
| Technical Paper | Carbon Deposition Reducing Coatings for Highly Loaded Large Diesel Engines |
| Technical Paper | Performance of Thin Thermal Barrier Coating on Small Aluminum Block Diesel Engine |
Authors
Topic
Citation
Inoue, T., Masuda, Y., and Yamamoto, M., "Reduction of Diesel Particulate Matter by Oil Consumption Improvement Utilizing Radioisotope Tracer Techniques," SAE Technical Paper 971630, 1997, https://doi.org/10.4271/971630.Also In
References
- Mori Kazutoshi et al. “Technology for Meeting the 1991 U.S.A. Exhaust Emission Regulations on Heavy Duty Diesel Engine” SAE Paper No. 902233 1990
- Dowling M. “The Impact of Oil Formulation on Emissions from Diesel Engines” SAE Paper No. 922198 1992
- Essig Gunder et al. “Diesel Engine Emissions Reduction - the Benefits of Low Oil Consumption Design” SAE Paper. No. 900591 1990
- Wachter Wolfgang F. “Analysis of Transient Emission Data of a Modelyear 1991 Heavy Duty Diesel Engine” SAE Paper No. 900443 1990
- Jakobs Rolf J. “Aspects of Influencing Oil Consumption in Diesel Engines for Low Emissions” SAE Paper No. 900587 1990
- Ariga Susumu et al. “Instantaneous Unburned Oil Consumption Measurement in a Diesel Engine Using SO 2 Tracer Technique” SAE Paper No. 922196 1992
- Laurence R.B. et al. “Effects of Lubrication System Parameters on Diesel Particulate Emission Characteristics” SAE Paper No. 960318 1996
- Kawamoto Jun-ichi et al. “Continuous Measurement of Engine Oil Consumption Rate by the Use of 35 S Tracer” SAE Paper No. 740543 1974
- Mayer William J. et al. “The Contribution of Engine Oil to Diesel Exhaust Particulate Emissions” SAE Paper No. 800256 1980
- Inoue Tokuta et al. “Sampling and Measurement Techniques for Diesel Particulate Emission” Journal of the Society of Automotive Engineers of Japan 36 11 1178 1982
- Cartellieri Wolfgang et al. “Particulate Analysis of Light Duty Diesel Engines (IDI & DI) with Particular Reference to the Lube Oil Particulate Fraction” SAE Paper No. 840418 1984
- Cuthbertson R.D. et al. “Direct Analysis of Diesel Particulate-Bound Hydrocarbons by Gas Chromatography with Solid Sample Injection” SAE Paper No. 870626 1987