New ACE Institute in Japan claims to have devised some new technology for diesels that they are claiming reduces nitrogen oxide emissions by up to eighty percent when the engines are fueled on canola-based biodiesel. They are using a mix of exhaust gas recirculation and high turbocharger boost to triple the combustion pressure. New Ace has been testing different combinations of EGR, boost, injection pressures and variable valve timing strategies, to optimize diesel efficiency and emissions. Hino Motors, Isuzu, Fuso, and Nissan Diesel formed the New ACE consortium in 1992. If their claims hold up this could really help diesels meet new emissions standards without resorting to tactics like urea injection.

[Source: New Ace Institute via GreenCarCongress]


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