10th Symposium "The Working Process of the Internal Combustion Engine"

Thermodynamic Analysis of the High Speed Two-Stroke Engine with Internal Mixture Preparation

Authors

Stephan Schmidt, Roland Kirchberger, Helmut Eichlseder, Institut für Verbrennungskraftmaschinen und Thermodynamik, Technische Universität Graz, Roland Margelik, Rainer Rothbauer, Raimund Almbauer, Christian Doppler Laboratorium für Thermodynamik der Kolbenmaschinen, Technische Universität Graz

Year

2005

Summary

The evaluation of the potential of engines respectively variants is a central point in the course of the development of new combustion concepts. For this evaluation, beside the functional parameters, the thermodynamic analysis of the working principle is typically used. This analysis is widely used in the area of four stroke engines. However, two stroke engines have some essential differences compared to four stroke engines, which result in difficulties in the analysis. In the present paper, these characteristics are discussed and the results of a thermodynamic analysis of a loop scavenged two stroke engine are presented. The difficulties of the thermodynamic analysis and several concepts of resolution are shown.

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