This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
System Development Concepts for Future Indian Passenger Car Legislations and Related Catalyst Technologies
Technical Paper
2001-26-0015
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SIAT 2001
Language:
English
Abstract
World over, emission legislations are becoming stringent day by day. India too, is on the road map for more tough emission legislations. 2/3 Wheeler legislations in India are being considered as the most stringent in the world, where as, Passenger Car and light/heavy duty legislations are reaching Euro III and Euro IV limits in the near future.
The present paper describes the system concepts to be followed to reach the emission targets, specially for Euro III and Euro IV for passenger cars. That includes necessity for using more advanced engine technologies such as Turbo Charging with Intercooling, EGR (cooled), Electronically Controlled Direct Injection, Common Rail / Pump - Nozzle systems. The new catalyst technologies required and developed for these applications are described. These technologies not only require to offer efficient emission reduction under fresh conditions, but need to meet the targeted results after long aging of over 80,000 km.
The paper is divided in two parts. The first part covers the systems for Gasoline applications, where in, combinations of Closed Coupled and Under Floor catalysts for various inertia weights of vehicles, detailed catalyst technologies such as Double Layer, Advanced Wash Coats for higher thermal stability etc. are discussed. Recent developments for Pt/Rh technologies equivalent to already established Pd/Rh technologies are also described as cost effective alternatives. Results on some of the vehicles with the above systems are disclosed.
The second part deals with systems for Diesel applications, such as Advanced Diesel Oxidation Catalysts, potentials of Active and Passive De-NOx systems etc. Recent developments in the field of diesel after treatment systems are also briefly described, which include NOx Adsorbers etc. System options required for meeting Euro III and Euro IV targets are also discussed with possible emission reduction capabilities.
Authors
Topic
Citation
Babu, K., Fischer, K., Klein, H., Lindner, D. et al., "System Development Concepts for Future Indian Passenger Car Legislations and Related Catalyst Technologies," SAE Technical Paper 2001-26-0015, 2001, https://doi.org/10.4271/2001-26-0015.Also In
References
- Linder, D. et.al. “Reduction of Exhaust Gas Emissions by Using Pd-based Three-way Catalysts” SAE Paper 960802 1996
- Waltner, A. et.al. “Development of Close - Coupled Catalyst Systems for European Driving Conditions” SAE Paper 980663 1998
- Mussmann, L Lindner, D. Carelli, G. “Pd / Rh and Pt / Rh based Catalysts on High Cell Density Ceramic Substrates to meet Euro IV Legislation” ATA 1999
- Zelenka, P. Ostgathe, K. Lox, E. “Reduction of Diesel Exhaust Emissions by Using Oxidation Catalysts” SAE Paper 902111 1990
- Leyrer, J. et.al. “Advanced Studies on Diesel Aftertreatment Catalysts for Passenger Cars” SAE Paper 960133 1996
- Engler, B. H. et.al. “Catalytic Reduction of NOx with Hydrocarbons Under Lean Diesel Exhaust Gas Conditions” SAE Paper 930735 1993
- Leyer, J. Lox, E. S. Strehlau, W. “Design Aspects of Lean NOx Catalysts for Gasoline and Diesel Engine Applications” SAE Paper 952495 1995
- Klein, H. et.al. “Hydrocarbon De-NOx Catalysis - System Development for Diesel Passenger Cars and Trucks” SAE 1999-01-0109 1999
- Strehlau, W. et.al. “New Development in the Catalytic Exhaust Gas Aftertreatment of Lean Burn Engines” Conference “Engine and Environment” 1997