Having previously been reluctant to adopt selective catalytic reduction (SCR), preferring exhaust gas recirculation (EGR) US truck makers have now had to do an about-face for EPA 2010 and barring International/ Navistar all of them have jumped on the SCR bandwagon. Of course that now means that they have to educate/persuade (you decide) their custoemrs as to the benefits of SCR and AdBlue and Biglorryblog notes that Volvo Trucks North America continues its campaign of telling eveyone about the environmental, operational and fuel efficiency benefits of its selective catalytic reduction (SCR) emissions technology through its rather splendid website www.volvoscr.com. Now click through here for more...
And onece again I have Jim McNamara, VTNA's PR wallah to thank for the news of the new website which gives customers access to a wide range of information detailing how SCR works, how it improves fuel economy and lowers operating costs, and how Volvo's SCR technology eliminates the need for active regeneration of the diesel particulate filter (DPF) during normal operation.
In addition to various links and documents, each with information on specific aspects of SCR technology and operation, there's also a detailed video presentation by Ed Saxman, Volvo Trucks product manager - drivetrain, fact sheets about SCR components and diesel exhaust fluid (DEF), and comparisons of the benefits of SCR to the drawbacks of massive exhaust gas recirculation (MEGR).
Not sure about the OEMs being forced into adopting SCR for 2010; both Daimler and AB Volvo lobbied hard - and jointly - for its acceptance for the 2007 legislation, and were somewhat narked when EPA said no. Navistar's posturing per EGR is just that: it had hoped to have enough credits in the bank to allow it to hedge its position for a couple of years, and many commentators - along with market data - suggest that it hasn't. Quite how this will play out remains to be seen, but it's difficult to see how Navistar will dig itself out of this one.