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A Study on Gasoline Engine Combustion by Observation of Intermediate Reactive Products during Combustion
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English
Abstract
In the case of two-stroke cycle gasoline engines, it is a rather well known fact that under light-load operation they do not run smoothly, but have a high concentration of unburned hydrocarbons (HC) in the exhaust gas, as well as high a fuel consumption rate.
In the study to improve such unstable conditions by devising a scavenging process of the engine, we often encountered self-ignited combustion, a kind of “RUN-ON”. This combustion was found to be very stable and fine with low missions of HC, and improved fuel consumption.
A study was carried out on this self-ignited combustion by optical analysis. Many differences were observed between self-ignited combustion and conventional spark ignited combustion on the behavior of formation of chemical intermediate products before and after ignition.
Self-ignited combustion has been found to occur under relatively low cylinder pressure and temperature, compared to diesel engine combustion, presumably by virtue of intermediate products. This special self-ignited combustion is named “TS (Toyota-Soken) combustion”.
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Citation
Noguchi, M., Tanaka, Y., Tanaka, T., and Takeuchi, Y., "A Study on Gasoline Engine Combustion by Observation of Intermediate Reactive Products during Combustion," SAE Technical Paper 790840, 1979, https://doi.org/10.4271/790840.Also In
References
- Noguchi M. Tanaka Y. Tanaka T. Takeuchi Y. “An Analysis of Combustion in Gasoline Engine.” Pre-print of congress of JSAE 782 Oct. 1978
- Rifkin E.B. Walcutt C. SAE 65 552 1957
- Semenov N.N. “Some Problems of Chemical Kinetics, and Reactivity” II 1959
- Hinshelwood C.N. Williamson A.T. “The Reaction between Hydrogen and Oxygen Oxford Univ. Press 1934