Specifics of Daimler's new SCR system (BLUETEC) in the Diesel Sprinter Van - Certified for NAFTA 2010 Daimler AG

Format:

Conference/Event

Author/Creator:

Waldbuesser, Waldbuesser, author.

Contributor:

Duvinage, Frank

Enderle, Christian

Erlenmayer, Oliver

Guenther, Josef

Hoffmann, Hanns

Schommers, Joachim

Waeller, Dieter

Conference Name:

SAE 2010 World Congress & Exhibition (2010-04-13 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2010

Summary:

Beginning in 2010, Daimler's well-known Diesel Sprinter vanhas to fulfill the new and clearly tighter NOx emission standardsof NAFTA10 (EPA, CARB). This requires an integrated approach offurther engine optimizations and the implementation of aninnovative exhaust aftertreatment technology. The goal was todevelop an overall concept which meets simultaneously the tightenedemission standards (including OBD limits) and the increasingcustomer demands of more power and torque without losing the highfuel efficiency of the small and highly efficient 3-liter V6 dieselengine OM642, which already has been installed in the NAFTA07Sprinter.In the early stages of the concept phase, the most appropriateNOx aftertreatment technology and certification form (engine orvehicle) had to be selected for this specific vehicle class in thevan segment with enhanced requirements to durability, economicalefficiency and specific driving behavior. The implementation ofDaimler's BLUETEC SCR system combined with a vehiclecertification reveals the best way to meet the multilayerrequirements.Due to the usage of a small passenger car derived but highlyefficient diesel engine (OM642), the adoption of passenger carderived SCR components (AdBlue® dosing valve, tank and dosingsystem) was more appropriate as our heavy duty derived components.The following SAE paper illustrates the implementation of the SCRsystem (BLUETEC) into the Diesel Sprinter van in detail. Maininvestigation areas are the adaption and optimization of theexhaust gas system including catalyst coating and the AdBlue\srdosing system, specifics of the operation strategy and the overallbalancing of engine and exhaust system optimization to meet the vanspecific requirements and the customer demands for more power,torque and fuel efficiency.The result is an attractive and unique powertrain concept forvans in North America. The new NAFTA10 Diesel Sprinter offers nowhigher power (188 hp) and torque (325 ft-lb) at even improved fuelefficiency (24.7 mpg) and significant lower NOx emissions (up to90%) compared to its predecessor. Consequently, Daimler developed aclean, environmental-friendly and economical highly efficientsustainable solution for future transportation in the van segmentof North America. Beginning in 2010, Daimler is going to sell theNAFTA10 Sprinter generation additionally as Mercedes-Benz vehiclein USA (all 50 states) and Canada, besides the well known brandingas Freightliner

Notes:

Vendor supplied data

Publisher Number:

2010-01-1172

Access Restriction:

Restricted for use by site license