Browse Publications Technical Papers 2001-01-1892
2001-05-07

Premixed Lean Diesel Combustion (PREDIC) using Impingement Spray System 2001-01-1892

Premixed lean Diesel Combustion (PREDIC) provides low NOx, however, it has some challenges associated with high HC emission, high fuel consumption and difficult timing control of compression ignition. To solve these problems, an impingement spray system with two injectors was tested to obtain positional controllability and larger volume of the air-fuel mixture formation in our previous study. The positional controllability means mainly the fuel mixture formation is the center of the cylinder with some space from the cylinder wall. The larger volume means the fuel mixture formation is leaner air-fuel mixture than that of free spray, which results in a possibility of higher thermal efficiency. Thus, the impingement spray system has a possibility of HC reduction and fuel consumption improvement in PREDIC.
In this study, we applied this system to PREDIC using a heavy-duty single cylinder engine with two injectors to evaluate the effects of injection timing, boost pressure and injection pattern etc. It has a possibility to reduce CO and HC by split injection pattern without increasing NOx.

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

An Investigation of Tribological Characteristics of Energy-Conserving Engine Oils Using a Reciprocating Bench Test

2000-01-1781

View Details

TECHNICAL PAPER

Experimental Investigation on Early and Late Intake Valve Closures for Knock Mitigation through Miller Cycle in a Downsized Turbocharged Engine

2015-01-0760

View Details

TECHNICAL PAPER

Lean Air-Fuel Ignition System Comparison in a Fast-Burn Engine

850076

View Details

X