Browse Publications Technical Papers 2000-01-0245
2000-03-06

Ignition System Measurement Techniques and Correlations for Breakdown and Arc Voltages and Currents 2000-01-0245

The first part of the paper is a brief review of the techniques needed for measuring the voltage and current during the ignition process. These techniques have been used in test rigs and an engine to gain insights into the breakdown and subsequent discharge development.
New correlations are presented for breakdown voltage as functions of spark plug gap, gas composition, temperature and pressure. The discharge voltage is affected by the flow, so an elevated pressure flow rig was used to look at the effect of flow and pressure on the discharge voltage history, with different stored energies in the ignition coil. This study led to a model for the discharge voltage history, from which it was possible to deduce the flow velocity through the spark plug gap.
Finally, these techniques were applied to a single cylinder, 4-valve, pent-roof combustion chamber SI engine, for determining the cycle-by-cycle variations in velocity through the spark plug at the time of ignition. The paper ends with some comparisons with LDA data.

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 17% 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

Effects of Spark Characteristics on Engine Combustion with Gasoline and Propane

2003-01-3264

View Details

TECHNICAL PAPER

Application of Conditional Sampling to the Study of Cyclic Variability in a Spark-Ignition Engine

871173

View Details

JOURNAL ARTICLE

Scuderi Split Cycle Research Engine: Overview, Architecture and Operation

2011-01-0403

View Details

X