Clean air technology

  • 16-Jun-2009 04:35 EDT
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AGCO’s e3 clean air technology, featured in its tractors, incorporates selective catalytic reduction (SCR) technology for reduced emissions of NOx and PM. The technology will help the machines meet U.S. EPA standards for off-highway diesel engines. e3 stands for energy, economy, and ecology: energy with levels of power and torque from a cooler-running engine; economy with SISU Power engines using e3 technology for up to 15% better fuel economy than competitive models; and ecology with Tier 3 compliance and 70% fewer PM emissions than required. The SCR technology is a post-combustion, aftertreatment process that incorporates a NOx reducing agent or diesel exhaust fluid, which is injected into the exhaust gas upstream of the e3 catalyst chamber. When heated, a liquid urea solution, the active ingredient in DEF, turns to ammonia and reacts with NOx from the exhaust to convert the pollutants into nitrogen, water vapor, and tiny amounts of carbon dioxide. The technology alone can achieve NOx reductions of over 90%.
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