“Wetting” the Appetite of Spark Ignition Engines for Lean Combustion

摘要: Single-cylinder spark ignition engine experiments conducted at constant speed, fixed airflow, and using isooctane as the fuel, demonstrated effects of fuel-air mixture preparation was changed by varying time fuel injection in induction manifold, near intake valve port. For comparison, a prevaporized also investigated. Emphasis placed on determining combustion characteristics. Based results from this study, often favored air may not be best diet for lean operation. /SAE/