This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Reduction of Emissions from Diesel Engines
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1973 by SAE International in United States
Annotation ability available
The proposed federal and California regulations affecting emissions from on-highway diesel-powered vehicles have stimulated a critical examination of many forms of combustion chambers in search for a solution to the 5 g/bhp·h combined HC + NO2 requirement. Results of tests made on indirect and direct injection systems are presented. It has been shown that with a simple modification to the injection timing of a production engine equipped with a swirl chamber combustion system, combined emission on the order of 4 g/bhp·h can be achieved under both naturally aspirated and turbocharged conditions. These results are achieved without significant sacrifice of smoke-limited power. Data on heat loss to coolant with the engine tuned for low emissions are presented.
The influence of injection and engine variables on the emission characteristics of direct injection systems has been investigated and it is shown that, in general, the measures required to generate low exhaust emissions result in a loss of smoke-limited power and a depreciation in specific fuel consumption. The superiority of the direct injection system over indirect injection chambers in regard to fuel economy is therefore reduced. The effects of exhaust gas recirculation and water injection on emissions are reviewed and it is concluded that neither is very attractive in regard to the reduction of emissions for the complication involved.
The possible use of the high-speed diesel engine for use in passenger cars to meet the 1976 Federal Emission Requirements is also discussed.
CitationWalder, C., "Reduction of Emissions from Diesel Engines," SAE Technical Paper 730214, 1973, https://doi.org/10.4271/730214.
- Marshall W. F. Hurn R. W. “Factors Influencing Diesel Emissions.” SAE Transactions 77 1968 paper 680528
- Marshall W. F. Fleming R. D. “Diesel Emissions as Related to Engine Variables and Fuel Characteristics.” Paper 710836 SAE Fuels and Lubricants Meeting St. Louis, Mo. October 1971
- Bascom R. C. Broering L. C. Wulfhorst D. E. “Design Factors that Affect Diesel Emissions.” “Engineering Know-How in Engine Design-Part 19 New York Society of Automotive Engineers, Inc. 1971 paper 710484
- Wagner T. O. Johnson J. H. “Cooperative Evaluation of Techniques for Measuring Hydrocarbons in Diesel Exhaust.” Paper 710218 SAE Automotive Engineering Congress Detroit January 1971
- Perez J. M. Broering L. C. Johnson J. H. “Cooperative Evaluation of Techniques for Measuring Nitric Oxide and Carbon Monoxide.” Paper 720104 SAE Automotive Engineering Congress Detroit January 1972
- Torpey P. M. Whitehead M. J. Wright M. “Experiments in the Control of Diesel Emissions.” Paper C 124/7 Conference on Air Pollution in Transport Engines Institution of Mechanical Engineers Solihull, England Nov. 9-11 1971
- Fortnagel M. “Influencing Exhaust Gas Composition by means of Exhaust Gas Recirculation in a Pressure Charged Swirl Chamber Diesel Engine.” Symposium on Technical and Legal Problems of the Protection of the Environment University of Trier-Kaiserslantern September 1971 M.T.Z. February 1972
- French C. C. J. “Taking the Heat Off the Highly Boosted Diesel.” SAE Transactions 78 1969 paper 690463
- Torazza G. “A Variable Lift and Event Control Device for Piston Engine Valve Operation.” Paper 2/10 FISITA Conference London June 1972
- Hames R. J. Merrion D. F. Ford H. S. “Some Effects of Fuel Injection System Parameters on Diesel Exhaust Emissions.” Paper 710671 SAE National West Coast Meeting Vancouver August 1971
- Valdmanis E. Wulfhorst E. E. “The Effects of Emulsified Fuels and Water Induction on Diesel Combustion.” SAE Transactions 79 1970 paper 700736
- Abthoff J. “Measurement and Variation of the Emissions of Oxides of Nitrogen from Internal Combustion Engines by Measures Applied to the Engine and by Ancillary Devices.” Combustion Engines Research Association Frankfurt/Main 1968
- Walder C. J. “Some Problems Encountered in the Design and Development of High Speed Diesel Engines.” Paper 978A SAE International Automotive Engineering Congress Detroit January 1965