Browse Publications Technical Papers 2002-01-2666
2002-10-21

Liquid and Vapor Fuel Distributions in a Small-Bore High-Speed Direct-Injection Diesel Engine 2002-01-2666

An optically-accessible single cylinder small-bore HSDI diesel engine equipped with a Bosch common-rail injection system is used to study the effects of multiple injection. High-speed video is used to study the injector and spray behavior. Laser-induced exciplex fluorescence is used to obtain simultaneous liquid and vapor fuel distributions within the combustion chamber, with tetradecane-TMPD-naphthalene as the base fuel-dopant combination. Significant liquid impingement is seen in the single main injection case, while evidence of liquid impingement is seen only in the first stage of the multiple injection case. No appreciable liquid impingement is seen for the second stage of the multiple injection case. Vapor is seen throughout the jet cross-section regardless of the injection parameters. The majority of the vapor is confined to the bowl region in the single injection case while evidence of vapor is seen outside of the bowl for the multiple injection case.

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

Analysis of Tumble and Swirl Motions in a Four-Valve SI Engine

2001-01-3555

View Details

TECHNICAL PAPER

Investigation of Spray Penetration and Fuel Distribution Inside the Piston Bowl of a 1.9 l DI Diesel Engine Using Two-Dimensional Mie Scattering

922204

View Details

TECHNICAL PAPER

Fuel Distribution and Combustion Characteristics in a Direct-Injection, Spark-Ignited (DISI) Engine Under Stratified Operation

2001-01-3645

View Details

X