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Combustion Analysis and Its Optimization in Two-Stroke Engines
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English
Abstract
The purpose of this study is to show cycle-to-cycle combustion variation in transient conditions of quick throttle opening and to control the combustion fluctuation improve acceleration in a two-stroke motorcycle engine. Two phases of engine operation were focused on: the low-load condition before quick throttle opening, and the transient condition after quick throttle opening. The time-series variation of the heat release rate based on the in-cylinder pressure, the engine-speed and the exhaust pressure variation were measured simultaneously, in an engine with a new multiple-timing-ignition-system, and in an engine with a modified exhaust port. Stable ignition performance and fast burning velocity were the keys to attaining smooth acceleration.
Topic
Citation
Ishibe, N. and Ohira, T., "Combustion Analysis and Its Optimization in Two-Stroke Engines," SAE Technical Paper 951788, 1995, https://doi.org/10.4271/951788.Also In
References
- Tuchiya K. et al. “A Study of Irregular Combustion in 2-Stroke Cycle Gasoline Engines” SAE Paper No. 830091
- Yamashita H, et al. “Driveability Evaluation of Two-Stroke Engine at Part Throttle Operation by Torque Map” SAE Paper No. 950226
- Ohira T. et al. “Cyclic variation of CO and CO 2 Emissions and Scavenging Flow in a Two-Stroke Engine” SAE Paper No. 940392
- Japan Society of Mechanical Engineer JSME Mecanical Engineer's Handbook B7:Internal Combustion Engines 1984 8 9
- Shimizu Y. “2-Cycle Engine Exhaust Control Device” SAE Paper No. 91128