1998-10-19

An attempt at Lean Burn of a4 Stroke Gasoline Engine by the Aid of Low Pressure Air Assisted In-Cylinder Injection 982698

Lean burn engines now being developed employ in-cylinder injection which requires high pressures and so necessitates expensive injection equipment.
The experiments reported here used air assisted in-cylinder injection, and injected a mixture of air and fuel during the intake stroke, so allowing atomization at lower injection pressures than those necessary in compressing fuel with solid injection.
The experiments confirmed that operation in this manner resulted in similar output and fuel consumption as with a carburetor.
Next, a divided combustion chamber was installed and connected to the main combustion chamber and air assisted in-cylinder injection from a reed type injection nozzle was attempted. With this arrangement, stable idling operation was possible to air-fuel ratios (A/F) of 70. Lean burn at A/F = 22 to 35 was also achieved at maximum rated outputs (3.7 kW at 4200 min-l) of 6 - 18 %.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

A Study of Lean Burn of a 4 Stroke Gasoline Engine by the Aid of Low Pressure Air Assisted In-Cylinder Injection - Part II

1999-01-3689

View Details

TECHNICAL PAPER

A Study of Knock in Lean-Burn Spark-Ignition Engines

921668

View Details

JOURNAL ARTICLE

A Study of Supercharged HCCI Combustion using In-cylinder Spectroscopic Techniques and Chemical Kinetic Calculation

2013-32-9171

View Details

X