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Exhaust emission reduction strategies for commercial vehicle engines
Technical Paper
1999-23-0002
Sector:
Language:
English
Abstract
The different emission limits worldwide as well as different vehicle categories require technologies adapted to the legal and economic needs. This paper is aimed at giving an answer to how these requirements can be fulfilled with diesel engines while achieving competitive fuel consumption and acceptable system expenditure. The development potentials offered are principally based on engine internal measures, exhaust gas aftertreatment and fuel quality. Three development strategies - engine internal measures with cooled exhaust gas recirculation alone, cooled exhaust gas recirculation with particulate trap, and denitrification with Selective Catalytic Reduction (SCR) - are discussed and an economic assesment of these strategies is made with regard to their application to light, medium and heavy duty trucks in different markets.