Stricter emission requirements have over the years successively been imposed on vehicles all over the world. Public opinion and legislators are calling for reductions of the exhaust emission levels, whereas owners and users are requiring also ever-lower fuel consumption.
Volvo took the first step towards cleaner exhaust emissions in the early 1950's with the turbo-charging engines that reduced levels of carbon monoxide (CO), hydro-carbons (HC) and smoke. Ever since, Volvo/Volvo Construction Equipment has been a world leader in exhaust emission control.
The next steps were to successively improve the fuel injection system and introduce Intercooling for more efficient, cleaner combustion. Today, Volvo diesel engines have systems for high performance and low emission levels – two seemingly incompatible concepts.