Investigation of a ‘SCR-free’ system to meet the Stage IV and beyond emissions limits

Conference paper
Part of the Proceedings book series (PROCEE)


In the emission power band above 55kW Kohler Engines have developed the KDI 3.4 litre engine to meet the Stage IV exhaust emissions limits using the Ricardo TVCS low soot combustion system plus DOC and SCR aftertreatment system, without DPF. For Stage IV, currently the 3.4 litre engine uses 2000 bar Denso Common Rail system with moderate EGR rates and requires a reduction in NOx emissions of around 90% over the SCR system.


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Copyright information

© Springer Fachmedien Wiesbaden GmbH 2017

Authors and Affiliations

  1. 1.Ricardo UKShorehamUK
  2. 2.Politecnico di TorinoTorinoItalien
  3. 3.Kohler EnginesReggio EmiliaItalien

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