This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
FUMIGATION KILLS SMOKE - -
IMPROVES DIESEL PERFORMANCE
Annotation ability available
Sector:
Language:
English
Abstract
THE effects of introducing a portion of the fuel charge of a diesel engine into the intake manifold in the form of a fine mist are reported in this paper. Laboratory tests with swirl-chamber and open-chamber engines resulted in smoke reduction up to 80%, increase in smoke-limited power output up to 18.5%, decrease in specific fuel consumption up to 9.8%, shorter ignition lag, lower maximum rate of pressure rise, and smoother operation. In running on good-grade diesel fuel approximately 15% of the main fuel proved to be as good a manifold fuel as any. It was also found that a diesel engine could operate satisfactorily on substandard fuels down to zero cetane number when fumigation was employed.
Maximum benefits from fumigation accrued when inducting fuel in the form of a very fine mist (not over 4 microns) produced by Micro-Fog. As yet an economical method of producing this finely atomized fuel spray in large quantities has not been found. However, significantly improved performance was also obtained by the use of inexpensive pneumatic spray nozzles that require only a small amount of low-pressure air for operation.
Recommended Content
Authors
Topic
Citation
Alperstein, M., Swim, W., and Schweitzer, P., "Also In
References
- “Manifold Introduction of Hydrocarbons as an Aid for Starting,” Van Overbeke C. W. Thesis The Pennsylvania State University August 1942
- SAE Journal, Vol. 60 June 1952 42 “Power Booster Fuels for Diesel Engines,” McLaughlin, E. J. Pinotti, P. L. and Sigworth H. W.
- Proceedings of Institution of Mechanical Engineers Vol. 168 No. 9 1954 280 286 “Effect of Auxiliary Fuels on Smoke-Limited Power Output of Diesel Engines,” Derry, L. D. Dodds, E. M. Evans, E. B. and Royle D.
- Proceedings of Institution of Mechanical Engineers Vol. 168 No. 9 1954 265 270 “Experimental Investigation into Effect of Fuel Addition to Intake Air on Performance of Compression-Ignition Engine,” Lyn W. T.
- Automobile Engineer, Vol. 44 June 1954 256 262 “Alcohol in Diesel Engines,” Havemann, H. A. Rao, M. R. K. Natarjan, A. and Narasimhan T. L.
- SAE Transactions Vol. 66 1958 54 64 “Bi-Fuel Approach to Burning Residual Fuels in Diesel Engines,” Arnold, W. C. Beadle, R. H. Logelin, R. L. and Young H. D.
- ASME Transactions Vol. 63 No. 3 April 1943 “Excess Air and Brake Mean Effective Pressure,” Schweitzer P. H.
- SAE Transactions Vol. 64 1956 250 272 “Evaluation of Reaction Kinetics Eliminates Diesel Knock—The M-Combustion System of MAN,” Meurer J. S.
- Automotive Industries, Vol. 114 June 15 1956 66 67 “New Concept of Diesel Combustion,” Schweitzer P. H.
- Canadian Journal of Research, November 1947 220 “Oxidation, Ignition, and Detonation of Fuel Vapors and Gases,” King R. O.
- “Effect of Supplementary Fuel Addition by Fumigation Through Inlet Manifold on Diesel Engine Performance,” Birnie C., Jr., Swim W. B., Alperstein M. The Pennsylvania State University, Department of Engineering Research Technical Report 1956
- “Diesel Combustion with Artificial Inlet Atmospheres,” Cunningham, R. G. Birnie, C. Jr., Law, R. M. Micthell E. The Pennsylvania State University, Department of Engineering Research Final Report August 1954
- Department of Internal Combustion Engineering, Indian Institute of Science Bangalore, South India