1993-03-01

Asymmetric Valve Strategies and Their Effect on Combustion 930821

In order to reduce the development time involved in optimising the combustion system and valve timing of the internal combustion engine, an electro-hydraulic valve actuation system has been developed. The effects of various combustion strategies, including asymmetrical valve events, on emissions and efficiency, together with their sensitivity to EGR and AFR were investigated. In addition, the influence of the cylinder head design on in-cylinder charge motion and combustion was investigated by correlating airflow, tumble and swirl data to the heat release data obtained during dynamometer testing.

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

Full-Load HCCI Operation with Variable Valve Actuation System in a Heavy-Duty Diesel Engine

2007-01-0215

View Details

TECHNICAL PAPER

An Assessment and Comparison of De-Throttling Approaches and Technologies for Further Reductions in Fuel Consumption in a Modern GDI Engine

2017-01-2224

View Details

TECHNICAL PAPER

In-Cylinder Mass Estimation Using Cylinder Pressure

2007-24-0049

View Details

X