Samenvatting
This paper considers the task faced by manufacturers in developing engines to meet the emission standards of a number of different countries. Compliance with EURO 1, EURO 2 and US 94 specifications are described in particular. Details are given of the development of the Mercedes Benz commercial vehicle range with turbocharged, intercooled engines. Technological developments in the combustion process are described and illustrated. The use of electronic injection systems and engine operation at high altitudes in Mexico are discussed. The use of gas engines is outlined.