‘‘Designer diagnostics’’ for developing direct-injection gasoline engines

The primary motivation for stratified-charge spark-ignited direct injection (SC-SIDI) engines is to maximize fuel economy by operating the engine with minimal (preferably no) throttling at part load. This requires control of the fuel-air mixing process to create a fuel cloud around the spark plug that is favorable for ignition and complete combustion in every engine cycle. This paper illustrates experimental techniques that have been developed to measure key aspects of the incylinder fuel-injection, ignition, combustion and emissions-formation processes. Most of these techniques rely on high-speed digital imaging and in-situ calibration in order to characterize dynamic in-cylinder phenomena that vary substantially from cycle to cycle.

[1]  H. C. Hottel,et al.  Determination of True Temperature and Total Radiation from Luminous Gas Flames , 1932 .

[2]  W. Tsang,et al.  The Incinerability of Perchloroethylene and Chlorobenzene , 1992 .

[3]  Andreas M. Lippert,et al.  Stratified-charge combustion: modeling and imaging of a spray-guided direct-injection spark-ignition engine , 2005 .

[4]  Michael C. Drake,et al.  Local fuel concentration measurements in internal combustion engines using spark-emission spectroscopy , 2002 .

[5]  John B. Heywood,et al.  Internal combustion engine fundamentals , 1988 .

[6]  S. D. Stasio,et al.  Influence of the soot property uncertainties in temperature and volume-fraction measurements by two-colour pyrometry , 1994 .

[7]  U. Vandsburger,et al.  A global reaction model for oh* chemiluminescence applied to a laminar flat-flame burner , 2003 .

[8]  Lloyd Withrow,et al.  Studying Engine Combustion by Physical Methods A Review , 1938 .

[9]  Kazunari Kuwahara,et al.  REVIEW ARTICLE: Diagnostics of in-cylinder flow, mixing and combustion in gasoline engines , 2000 .

[10]  B. Stojkovic,et al.  Local fuel concentration, ignition and combustion in a stratified charge spark combustion in a stratified charge spark ignited direct injection engine: Spectroscopic, imaging and pressure-based measurements , 2003 .

[11]  Volker Sick,et al.  High-speed imaging of OH* and soot temperature and concentration in a stratified-charge direct-injection gasoline engine , 2004 .

[12]  J. Lee,et al.  Experimental Diagnostics for the Study of Combustion Instabilities in Lean Premixed Combustors , 2003 .

[13]  Hua Zhao,et al.  Engine combustion instrumentation and diagnostics , 2001 .

[14]  Michael C. Drake,et al.  Advanced diagnostics for minimizing hydrocarbon emissions from a direct-injection gasoline engine , 1996 .