This content is not included in your SAE MOBILUS subscription, or you are not logged in.
The Effects of Methanol Injection on Emission and Performance in a Carbureted SI Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1979 by SAE International in United States
Annotation ability available
A single cylinder carburetor SI engine with a modified L type cylinder head and equipped with a fuel injector was used to inject methanol into the combustion chamber.
Four series of runs at an engine speed of 2500 rpm were made. One series with different values of λ* was performed with gasoline, and the other three series methanol was injected into the gasoline-air mixture. Each series of methanol injected run was supplied with the same energy input per cycle to correspond to that of the gasoline.
The results of the experiments indicated that the performance (BHP) of the engine was proportional to the energy input of the mixture up to about 50% methanol injected.
With the equivalence air-fuel ratio above λ = 1.15 (lean mixture), it was found the NOx concentration decreased more than 30% while the BSFC remained constant.
CitationChiu, C. and Hong, L., "The Effects of Methanol Injection on Emission and Performance in a Carbureted SI Engine," SAE Technical Paper 790954, 1979, https://doi.org/10.4271/790954.
- Barber E. M. “Texaco Combustion Process Gives Knock-Free Operation.” SAE J. Sept. 1950
- Modified I.C. Engines Reaches Proposed 1980 Emission Goals Automotive Eng. February 1971
- Baudry J. “A New IFP Process for Engine Combustion.” SAE Paper 380 F 1961
- Ricard H. R. “The High Speed Internal Combustion Engine.” London 1953
- Bascunana J. L. Conta L. D. “Further Research on Charge Stratification.” SAE Trans. 660095 January 1966
- Nilov N. A. 1958
- Pischinger F. F. “Single-Cylinder Study of Stratified Charge Process with Prechamber-Ignition.” SAE Trans. 741162 1974
- Yagi S. Date T. Inoue K. “NO x Emission and Fuel Economy of the Honda C.V.C.C. Engine.” SAE Trans. 741158 1976