AbstractThe modern four-stroke, poppet valve, direct injection, gasoline engine has improved combustion efficiency, reduced emissions and greater engine performance when compared to the port-fuel injected engine. In parallel, two-stroke, piston-ported engine designs have also evolved. However, their greater pollution levels have limited their potential in the market. Two-stroke operation offers higher specific power output than four-stroke, while at part load, four-stroke operation offers better fuel consumption. Therefore, a combination of the two operating systems, in a poppet valve engine design, presents a potential solution to these problems. On the other hand, two-stroke engine operation generates more power and torque and the corresponding heat transfer is higher. For four-stroke engines, thermal studies have historically been carried out on many different types of engines. In contrast, twostroke, poppet valve engine thermal studies are very limited.
|Date of Award||Jun 2010|
Thermal analysis of a poppet valve gasoline engine for two- and four-stroke operation
Gonzalez, A. G. D. R. (Author). Jun 2010
Student thesis: Master's Thesis