Clean Automotive Technology...
Innovation that Works
SEFft
   United States
   Environmental Protection
   Agency
         EPA and International Truck and Engine Corporation to
               Develop Clean Diesel Combustion Technology
   A new technology partnership known as a Cooperative Research And Development Agreement
   (CRADA) between the U.S. Environmental Protection Agency (EPA) and International Truck and
   Engine Corporation was announced by Administrator Mike Leavitt on May 13, 2004. The partnership
   will further develop and determine the commercial viability of a new EPA diesel emission technology
   called Clean Diesel Combustion (CDC).

   The CRADA calls for EPA and International to work together to move the
   CDC technology from EPA's research laboratory to the marketplace.

   Clean Diesel Combustion was invented in EPA's National Vehicle and
   Fuel Emissions Laboratory in Ann Arbor, Michigan, and holds promise
   for providing another pathway in meeting the 2007 Heavy-Duty Diesel
   nitrogen oxides (NOx)  emission levels while maintaining good fuel
   efficiency. The  measured fuel efficiency of Clean Diesel Combustion
   engines  running in  EPA's laboratory indicates there is no loss of fuel
   efficiency (brake efficiencies above 40 percent).

   Clean Diesel Combustion shows the potential to meet the level of  T
   upcoming diesel emissions standards without NOx aftertreatment, NOx
   traps, NOx catalysts or urea SCR (Selective Catalytic Reduction).

   Clean Diesel Combustion still requires engine aftertreatment to reduce the particulate matter (PM),
   hydrocarbon (HC), and carbon monoxide (CO) emissions  to the levels of the upcoming stringent Tier 2
   and 2007 Heavy-Duty standards.

   Clean Diesel Combustion technology is the combination of several innovative improvements in diesel
   fuel injection system performance, reoptimization and  refinement of air management/turbocharging
   systems, and an improved combustion system.

   International is making significant investments in advancing CDC technology into their product line,
   starting with an evaluation in their V-6 diesel engine sized for SUVs and pickups.

   Future diesel engines will offer tremendous opportunity to reduce vehicle fuel consumption, since the
   diesel engine is 25-40 percent more efficient than a similar gasoline powered vehicle.

   Automotive diesels are one of several exciting technologies that can improve fuel efficiency, lower U.S.
   dependence on imported oil, and also reduce greenhouse gas emissions.
 www.epa.gov/otaq/technology
      May 2004
EPA420-F-04-036

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