Browse Publications Technical Papers 952525
1995-10-01

High-Speed Photography and Image Analysis Techniques Applied to Study Droplet Motion within the Porting and Cylinder of a 4-Valve SI Engine 952525

High-speed cine photography has been applied to an optically-accessed version of a modern 4-valve, pent-roof, si engine in order to observe the behaviour of fuel under cold starting and warm-up conditions.
A wall film was formed on the combustion chamber surface in the vicinity of the valves when fuel was supplied by pintle and disk-type injectors. This wall film survived combustion but was drawn into the exhaust system when the exhaust valves opened. The use of an air-blast atomiser avoided the formation of this wall film, but some wetting of the piston was apparent, as it was with the other types of injector.

SAE MOBILUS

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

Access SAE MOBILUS »

Preview Document Add to Cart
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

MAPS OF DISCHARGE COEFFICIENTS FOR VALVES, PORTS AND THROTTLES

2001-01-1798

View Details

TECHNICAL PAPER

Controlling Engine Load by Means of Late Intake-Valve Closing

800794

View Details

TECHNICAL PAPER

Investigations on Ventilation Strategies for SI Cylinder Deactivation Based on a Variable Valve Train

2016-01-2346

View Details

X