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Smoke and Fuel Consumption Measurements in a Direct Injection Diesel Engine with Variable Swirl
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English
Abstract
Results are presented from an experimental programme in which induction swirl ratio was varied from 0 to 5.1 in a 120.7 mm bore single cylinder naturally aspirated direct injection diesel engine. Trends in smoke and indicated specific fuel consumption with variable swirl at constant air-fuel ratio and start of combustion timing are presented for 4 engine speeds with two combustion chamber configurations and three fuel injection pump builds, each with the same injector nozzle. The results show clear optimum swirl levels for smoke and for ISFC, which are dependent on engine speed, piston cavity diameter and injection rate.
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Citation
Timoney, D., "Smoke and Fuel Consumption Measurements in a Direct Injection Diesel Engine with Variable Swirl," SAE Technical Paper 851542, 1985, https://doi.org/10.4271/851542.Also In
References
- Alcock, J.F. “Air Swirl in Oil Engines.” Proc. I.Mech.E. 128 Dec. 1934 123 193
- Monaghan, M.L. Pettifer, H.F. “Air Motion and Its Effect on Diesel Performance and Emissions.” SAE 810255 1981
- Tippelman, G. “A New Method of Investigation of Swirl Ports.” SAE 770404 1977
- Timoney, D.J. “A Simple Technique for Predicting Optimum Fuel-Air Mixing Conditions in a Direct Injection Diesel Engine with Swirl.” SAE 1985
- Pettifer, H.F. “Interaction of Port Design and Injection Rate for a DI Diesel.” SAE 820358 1982
- “Diesel Engine Swirl and Performance Simulation Program SWIRLB.” Ricardo Report DP 80/832 1980
- Ball, W.F. Pettifer, H.F. Waterhouse, C.N.F. “Laser Doppler Velocimeter Measurements of Turbulence in a Direct-Injection Diesel Combustion Chamber.” I. Mech. E. Conference on Combustion in Engineering April 1983
- Urlaub, A. “Investigation of Flow Patterns in the Cylinder of Internal Combustion Engines.” MAN Forschungsheft No. 14/1968/69