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Pre-Turbocharger Catalyst - Fast catalyst light-off evaluation
Technical Paper
2005-01-2142
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Further tightened emission legislation and new engine technologies increase the requirements for the exhaust after-treatment system of modern diesel passenger cars. Especially the increasing raw emissions of HC and CO as well as the low temperature of the exhaust gas for a long period during cold start of the New European Driving Cycle (NEDC) require additional efforts in the design of the oxidation catalyst system [1].
A highly efficient micro catalyst, which is mounted in front of a turbocharger, can help to treat efficiently these high HC and CO emissions. Due to the higher temperature level in front of the turbine and the significantly increased mass and heat transfer by turbulent flow, efficiency especially during cold start is highly increased. However the packaging constraints are more critical in this area due to heat considerations and also to maintain engine performance. The Pre-Turbocharger Catalyst (PTC) is able to balance the total functionality and has a high potential to make the Diesel Oxidation Catalyst (DOC)more efficient.
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Citation
Carberry, B., Grasi, G., Guerin, S., Jayat, F. et al., "Pre-Turbocharger Catalyst - Fast catalyst light-off evaluation," SAE Technical Paper 2005-01-2142, 2005, https://doi.org/10.4271/2005-01-2142.Also In
References
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- Reizig Meike Brück Rolf Konieczny Roman Treiber Peter “New Approaches to Catalyst Substrate Application for Diesel Engines” SAE 2001-01-0189
- Saroglia Gianpiero Basso Giovanni Presti Manuel Reizig Meike Stock Holger “Application of New Diesel Aftertreatment Strategies on a Production 1.9L Common-Rail Turbocharged Engine” SAE 2002-01-1313
- Maus Wolfgang Brück Rolf Kaiser Friedrich W: 25 26 April 2002