Abstract:Recent design trends of automotive petrol engines, brought about by the need to meet exhaust‐emissions legislation, are discussed. It is explained why many of the consequent changes have the side effect of seriously increasing fuel consumption. the conventional inlet system is isolated as a major cause of poor combustion, which leads to the presence of much of the pollutants, and to low engine efficiency.
A historical survey is included on the events leading to the present‐day exhaust‐emissions legislation, an… Show more
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