Because of the more hostile environment in the compression ignition engine compared to the spark ignition engine, development and application of CI engine in-cylinder diagnostic methods have lagged those for SI engines. However, with more stringent federally mandated particulate and NOx standards which will go into effect in 1991 and 1994, the need for detailed information on the combustion processes in the cylinder is vital to controlling tailpipe emissions. The present paper contains a summary of the state-of-the-art techniques for determining in-situ species concentrations and profiles; particle concentrations, profiles, and size distributions; and temperature fields. Optical and physical probing methods, total cylinder dumping methods, and optical diagnostics applied for use in CI engine combustion chambers are discussed.
|Original language||English (US)|
|State||Published - Dec 1 1988|
|Event||International Congress and Exposition - Detroit, MI, United States|
Duration: Feb 29 1988 → Mar 4 1988
|Other||International Congress and Exposition|
|Period||2/29/88 → 3/4/88|