Flame Visualisation in Standard SI-Engines - Results of a Tomographic Combustion Analysis 970870
An optical sensor system provides access to standard SI engine combustion chambers via the cylinder head gasket. Flame radiation within the plane of the gasket is observed with optical fibers which are arranged to allow the tomographic reconstruction of flame distribution.
The effect of convective in-cylinder air motion generated by variations of inlet ports and combustion chamber geometries on flame propagation is directly visible. A high degree of correlation between flame intensity distribution and NOx emission levels yields a useful assessment of combustion chamber configurations with minimum emission levels. The location of knock centers is identified.
Citation: Philipp, H., Fraidl, G., Kapus, P., and Winklhofer, E., "Flame Visualisation in Standard SI-Engines - Results of a Tomographic Combustion Analysis," SAE Technical Paper 970870, 1997, https://doi.org/10.4271/970870. Download Citation
H. Philipp, G. K. Fraidl, P. Kapus, E. Winklhofer
AVL List GmbH
International Congress & Exposition
Analysis of Engine Combustion and Flow Diagnostics-SP-1244