Future, upgraded exhaust aftertreatment systems for Automotive Diesel engines for proper compliance with new regulations English Free Members only

  • Category Technical paper
  • Related event International Congress : SIA Powertrain - Rouen 2014 - 21 & 22 May 2014
  • Edition SIA
  • Date 05/21/2014
  • Author T. Körfer, W. Bick, B. Holderbaum - FEV | T. Wittka - RWTH Aachen University
  • Language English
  • Type PDF file (564.54 Ko)
    (Downloadable immediately on receipt of online payment)
  • Number of pages 9
  • Code R-2014-02-19
  • Fee Free

Modern Diesel engine technology represents an attractive platform for compliance with both, lowered CO2 emissions through highly efficient combustion as well as for substantially strengthened emission norms worldwide. The upcoming new emission test procedures in the EU like WLTC/RDE and PEMS conclude in extended emission relevant engine operation areas. Besides the increased coverage of engine load also the emission testing from cold start to high temperature cycles demand an extended active temperature range of aftertreatment systems. Additionally, improved combustion with increased fuel efficiency and thereby lowered exhaust gas temperature define even more challenging boundaries for exhaust aftertreatment functionalities. With respect to the increased scope of demands specifications of aftertreatment systems have to be upgraded and alternative solutions and technologies are moving forward in development and technical realization.
Meeting all sometimes contradictory requirements, advanced combined aftertreatment systems allow the best overall performance by the benefit of synergistic effects. Besides the proven DPF-based soot reduction technology, the combination of LNT and SCR functionalities seems promising as one technology module for NOx treatment in passenger car applications. This paper focusses on various passive and active LNT and SCR combination variants and comprehensively investigates the overall DeNOx performance.

INGENIEURS DE L'AUTO SE DIGITALISE

 

 

La revue Ingénieurs de l’Auto est maintenant diffusée en print et on line. Une grande première pour la SIA avec ce numéro 865, disponible au format numérique.

Cette version digitale sera, à chaque numéro, réservée aux membres de la SIA abonnés.

Exceptionnellement pour ce premier numéro on line, et en lien avec la situation de confinement et de télétravail de beaucoup d’ingénieurs de notre industrie, la version digitale du numéro de Mai est accessible à tous.

 

DÉCOUVRIR LA REVUE