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Development of Methanol Engine with Autoignition for Low NOx Emission and Better Fuel Economy
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English
Abstract
The spark-assisted methanol engine has disadvantages like poor fuel economy especially at light load and low spark plug durability affected by combustion characteristics. Investigations of combustion characteristics of the spark ignition system and the autoignition system in the methanol engine and discharge characteristics of a spark plug are described in this paper. It is clear that effective autoignition was accomplished by increasing the compression ratio and adopting an EGR system in the spark-assisted methanol engine. This new improved methanol engine which is named HAMS achieved good fuel economy at light load, a low NOx emission and longer spark plug life. And a heat insulated piston with a stainless steel cap is being investigated for further improvement of autoignition combustion characteristics.
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Citation
Hikino, K. and Suzuki, T., "Development of Methanol Engine with Autoignition for Low NOx Emission and Better Fuel Economy," SAE Technical Paper 891842, 1989, https://doi.org/10.4271/891842.Also In
References
- Siebers D. L. Edwards C. F. “Auto-ignition of Methanol and Ethanol Sprays under Diesel Engine Conditions” SAE Paper 870588
- Neitz A. Chmela F. “Results of Further Development in the M. A. N. Methanol Engine” 6th Int. Symp. on AFT 1 1984
- Bertilsson B. Gustavsson L. “Experiences of Heavy Duty Alcohol Fueled Diesel-Ignition ENGINES” SAE Paper 871672
- Bergmann H. K. “A Highly Effecient Alcohol Vapor Aspirating Spark Ignition Engine with Heat Recovery” SAE Paper 821190
- Seko T. Yoshida Y. Yamaguchi I. Sakai T. Hori M. Y. K. “Combustion Exhaust Emission of the Spark assisted Methanol Diesel Engine” SAE Paper 861165