1982-02-01

The Effect of Combustion Chamber Shape on the Rate of Combustion in a Spark Ignition Engine 820165

Measurements have been made of the rate of flame propagation, the cylinder pressure and the combustion rate for twenty one spark ignition engine combustion chamber designs. These show that, for a given compression ratio, the flame speed is not significantly affected by chamber design. However, the rate of combustion, the pressure history and cyclic dispersion are greatly affected.
A computer simulation has been developed which uses a simple but effective integration technique to determine the combustion chamber geometric parameters. This, too, shows that combustion chamber design has a marked effect on combustion rate and that the effect is due to the degree of compactness of the chamber.
The paper includes also work on spark plug position and dual spark plugs.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
X