Our techology choise for industrial engines to meet the legislative demands covered in EU Stage 3B and EPA Tier 4i is Selective Catalytic Reduction (SCR). This means that the nitrogen oxides will be reduced when the exhaust pass through the SCR unit and the particulates will be reduced by a highly efficient development of the in-cylinder combustion process.
The Volvo SCR engine technology is well proven in the Volvo Group since 2004 when the Euro 4 emission regulation was effective in Europe for on-road vehicles. The SCR technology will also be used in Volvo Groups on-road vehicles in the USA to meet the US10 emission regulation effective from 2010.
Beyond 2011 comes 2014 which will bring EU Stage 4 and EPA Tier 4 emission regulations and the Volvo Group technology is already there. To meet the next stage of legislations in 2014, SCR will be coupled with additional adanced technologies developed within the Volvo Group.