Browse Publications Technical Papers 2007-01-0492
2007-04-16

Relative Contributions of Intake and Exhaust Tuning on SI Engine Breathing - A Computational Study 2007-01-0492

This study examines the contributions and interactions of intake and exhaust tuning on a 4-stroke single-cylinder engine for various engine speeds and valve timings. The parametric study was performed using a 1-D engine simulation model, the combustion sub-model of which was calibrated based on experimental pressure data. Mechanisms by which tuning changes the volumetric efficiency of an engine were studied. Simulation results are compared with established empirical correlations which predict pipe lengths for maximum volumetric efficiency. It was found that intake tuning has a more dominant role in the breathing capability of the engine compared to exhaust tuning and that both are independent from each other. Valve timing was found to have no effect on intake tuning characteristics but to affect exhaust tuning.

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

Effect of Primary Intake Runner Tapers and Bellmouths on the Performance of a Single Cylinder Engine

2007-01-0382

View Details

TECHNICAL PAPER

The Effects of Intake Geometry on SI Engine Performance

2009-01-0302

View Details

TECHNICAL PAPER

A Robust CFD Methodology for Physically Realistic and Economically Feasible Results in Racing - Part IV: Intake-Valve Region Flow

2006-01-1591

View Details

X