This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Evolution of a New Combustion System for Diesel Emission Control
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1974 by SAE International in United States
Annotation ability available
The emission control of small naturally aspirated diesels has posed severe problems and it has been generally thought that their acceptability in pollution sensitive areas would decline. The investigation described attempts to reverse this view. The exhaust quality of engines of this type can be improved by reducing the combustion temperatures and/or reducing the initial heat release rate: a range of methods of achieving this were examined and found commercially unacceptable.
A qualitative review of the problem led to the evolution of a modified cycle characterized by high turbulence leading to higher air/fuel mixing rates and faster diffusion burning. This “Squish Lip” combustion system allowed CARB 1977 projected emission levels to be met on development engines without performance deterioration. Bench and field trials are in hand and a second generation system for truck applications is being evaluated.
|Technical Paper||The Capability Of Forming Injection Rates For HSDI Diesel Engines With Unit Injector Systems|
|Technical Paper||Isuzu New V8 - V12 PE-Series Diesel Engines|
CitationBertodo, R., Downes, T., and Middlemiss, I., "Evolution of a New Combustion System for Diesel Emission Control," SAE Technical Paper 741131, 1974, https://doi.org/10.4271/741131.
- Eyzat P. Guibet J. C. “A New Look at Nitrogen Oxides Formation in Internal Combustion Engines.” SAE Transactions 77 1968 paper 680124
- Barker E. M. Malin J. C. Mikita J. J. “The Elimination of Combustion Knock.” Jl. Franklin Inst. 241 4 1946 275
- Alperstein M. Schafer G. H. Villforth F. J. “Texaco's Stratified Charge Engine-Multifuel, Efficient, Clean, and Practical Paper 740563 SAE Southern California Section Meeting May 1974
- Meurer S. “Evolution of Reacting Kinetics Eliminates Diesel Knock: The M-Combustion System of M.A.N.” SAE Transactions 64 1956 258
- List H. “Inlet Port for Internal Combustion Engines.” 1973
- Bertodo R. “Pollutants from Automotive Sized Engines-with Special Reference to Diesels.” Paper No. 1 Joint Inter-Research Council Committee on Pollution Research and Natural Environmental Research Council Seminar London May 1974