Performance, Emissions, and Fuel Consumption of the White L-163-S Stratified-Charge Engine Using Various Fuels

The performance, exhaust emissions, and fuel consumption of a White Engines, Inc. L-163-S engine were determined using a gasoline and a diesel fuel. Values of fuel economy and exhaust emissions were predicted for Environmental Protection Agency hot-start urban and highway driving cycles simulated from steady-state results.

The emissions calculated for the simulated cycles were found to be similar in magnitude to the calculated before-catalyst emissions of an equally-powerful spark-ignition engine. The diesel fuel produced higher mass emission rates of unburned hydrocarbons and carbon monoxide but lower oxides of nitrogen than the gasoline which was used. Fuel consumption and exhaust mass emission rates are presented across the speed and load operating range of the engine.