This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Combustion Characteristic of Lean Mixture Ignited by Gas-Oil Injection in High Compression Engine
Technical Paper
978496
Annotation ability available
Sector:
Language:
English
Abstract
We have investigated combustion characteristics of lean gasoline-air pre-mixture ignited by gas-oil injection using a high compression D.I. diesel engine. Gasoline was supplied as an uniform lean mixture by using carburetors, and gas-oil was directly injected into the cylinder. Two different types of combustion chamber were attempted. It was confirmed that the lean mixture of air-fuel ratio between 150 and 35 could be ignited and burned by this ignition method. An engine with the re-entrant type combustion chamber had an advantage for combustion and ignition. The brake mean effective pressure increased when relatively rich mixture was provided with a small amount of the gas-oil injection. As the gas-oil injection increased, HC concentration decreased, and NO and CO concentration increased. The exhaust gas emission of pollutants could be reduced when lean mixture was ignited by an optimum gas-oil injection.
Authors
Topic
Citation
Kotani, D., Yoshida, K., Shoji, H., and Saima, A., "Combustion Characteristic of Lean Mixture Ignited by Gas-Oil Injection in High Compression Engine," SAE Technical Paper 978496, 1997.Also In
References
- Yoshida , K. , Shoji , H. and Saima , A. Influence of the Characteristic length on Performance of Plasma Jet Igniters SAE Paper 942051 1994
- Murase , E. , Ono , S. , Hanada , K. and Oppenheim , A. K. Pulsed Combustion Jet Ignition in Lean Mixture SAE Paper 942048 1994
- Kuwahara , K. , Watanabe , T. , Takemura , J. , Omori , S. , Kume , T. and Ando , H. Optimization of In-Cylinder Flow and Mixing for a Center-Spark Four-Valve Engine Employing the Concept of Barrel-Stratification SAE Paper 940986 1994
- Hywood , J. B. Internal Combustion Engine Fundamentals 450 490 McGraw-Hill Book Company 1988
- Zhang , L. , Ueda , T. , Takatsuki , T. and Yokota , K. A Study of the Effects of Chamber Geometries on Flame Behavior in a DI Diesel Engine SAE Paper 952515 1995