Browse Publications Technical Papers 2000-01-2842
2000-10-16

Fuel Stratification Process in the Cylinder of an Axially Stratified Engine 2000-01-2842

The Fuel stratification process has been investigated in the cylinder of an axially stratified lean burn engine by visualizing fuel behavior. Planar laser light sheet from an Nd:YAG laser has been illuminated through the transparent quartz cylinder of a single cylinder optical engine. Mie scattered light has been captured through the quartz window in the piston head with an ICCD camera. Fuel has been replaced with an ethanol droplets to utilize an atomized fuel spray for visualization purposes. Swirl ratios have been varied by changing cylinder heads with different swirl numbers and injection time has been varied to find the effect of fuel stratification. A higher lean mixture limit was achieved when the fuel remained at the combustion chamber as stratified with the proper combination of fuel injection timing swirl flow. The stratification was governed by tumble motion in no/low swirl ports on the other hands this is determined by short penetration depth and strong swirl of the middle cylinder area, which plays a role of supporting upper-rich state, in high swirl port.

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.

Due to current capacity constraints, printed versions of our publications - including standards, technical papers, EDGE Reports, scholarly journal articles, books, and paint chips - may experience shipping delays of up to four to six weeks. We apologize for any inconvenience.
We also recommend:
TECHNICAL PAPER

A Comparison of Fuel Distribution and Combustion During Engine Cold Start for Direct and Port Fuel Injection Systems

1999-01-1490

View Details

TECHNICAL PAPER

Development of a Multi-Sensors Head Gasket for Knock Localization

2003-01-1117

View Details

TECHNICAL PAPER

Analysis of Local Pressures, Surface Temperatures and Engine Damages under Knock Conditions

830508

View Details

X