1956-01-01

Physical and Chemical Ignition Delay in an Operating Diesel Engine Using the Hot-Motored Technique 560061

THE present work uses the hot-motored technique to compare a hot, motored pressure diagram with a fired, pressure-time diagram. This technique is applied to a diesel engine to study the small pressure changes after injection and before rapid inflammation. The data resulting from these studies show a relationship between the magnitude of these pressure changes and cetane number of the fuel. Data for selected fuels are presented to show the relative magnitude of different phenomena causing ignition delay.

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