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Hsdi Diesel Engine Development Towards Euro Iv
Published January 01, 1998 by Institution of Mechanical Engineers in United Kingdom
The diesel engine with direct injection (HSDI) is currently widely used in European passenger cars. Both automotive journalists and buyers show great enthusiasm for the low vehicle fuel consumption levels and the impressive driving performances of these diesel models, whose sales are increasing steadily. However, the emission standards under discussion for the year 2005 EURO IV), which cannot be fulfilled with the mass-production emission control technologies of today, are extremely challenging to future development.
The paper starts with the state of development of current prototype engines (vehicles) and the developmental achievements necessary to meet EURO IV emission targets. From that it is evident that apart from lowering engine-out emissions, additional exhaust gas aftertreatment systems - besides oxicat - are becoming practically mandatory for heavier vehicles. The various technologies in the two engineering areas mentioned above are discussed and development routes as well as results are described showing the prospect that the market position of the DI diesel engine will be secured in the future.