1981-11-01

Future Engine Designs for Minimum Fuel Consumption and Exhaust Emissions 811385

Gasoline engines specifically designed to achieve improved fuel consumption and lower exhaust emissions are reviewed. The high compression ratio, lean burn approach is considered and contrasted with other solutions such as stratified charge and diesel engines.
In the interests of energy conservation, the reasons for excessively stringent exhaust emission control regulations are challenged and compared with the moderate approach apparent in Europe. On the basis that the spark-ignition engine will continue . to predominate as the means of powering passenger cars over the next 10-20 years, the relationship of the engine and fuel production for maximum energy utilisation is examined, emphasising the importance of octane quality in preventing engine damage, and its significance in extending the energy in the barrel of crude oil.

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