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Active DPF Regeneration for 2007 Diesel Engines
Technical Paper
2005-01-3509
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A Diesel Particulate Filter (DPF) is needed to meet the Particulate Matter (PM) requirements of US EPA 2007 regulations for diesel engines. A catalyzed diesel particulate filter (cDPF or CSF) in combination with a diesel oxidation catalyst (DOC) is effective if the DOC has achieved light-off. However, for some applications, exhaust temperature will be too low to achieve DOC light-off. Therefore a reliable active regeneration means will be required. This paper presents a diesel-fired filter regenerator that works with an uncoated DPF. During regeneration, the thermal regenerator raises the exhaust temperature to 650 °C at the filter face at any engine condition, including idle. The thermal regenerator was tested on a cordierite filter placed on a heavy-duty diesel engine with cooled-EGR (2007 calibrations). THC, CO and NOx emissions, as well as opacity, in the tailpipe were measured at both steady state and transient engine conditions. In addition, the temperatures inside the filter during regeneration at various engine conditions were measured. Finally, a vehicle installation was performed, and the system was shown to achieve good regeneration in on-vehicle conditions. The test data show that this active DPF regeneration technology is a viable PM solution for 2007 diesel engines under any operating duty cycle.
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Citation
Kong, Y., Kozakiewicz, T., Johnson, R., Huffmeyer, C. et al., "Active DPF Regeneration for 2007 Diesel Engines," SAE Technical Paper 2005-01-3509, 2005, https://doi.org/10.4271/2005-01-3509.Also In
Particulates-Emission Control; NOx Emission Control; Integrated Emissions Systems; Emissions Measurements; and Worldwide On-Road Emission Control Experience Europe, USA and Japan
Number: SP-1986; Published: 2005-11-01
Number: SP-1986; Published: 2005-11-01
References
- Johnson T.V. “Diesel Emission Control in Review - The last 12 Months” SAE 2003-01-0039
- Mayr A. Ranalli M. Schmidt S. “Diesel Fuel Vaporizer: A Way to Reliable DPF Regeneration” SAE_NA 2003-01-50
- Zelenka Paul Telford Clive Pye Dave Birkby Nik “Development of a Full-Flow Burner DPF System for Heavy Duty Diesel Engines” SAE 2002-01-2787
- Kong Yougen et al “Applications of an Active Diesel Particulate Filter Regeneration System” 2004 SAE Commercial Vehicle Engineering Congress
- Cutler W. Floerchinger P. Zink Uwe Tomazic D. “Regeneration-Control - Key to Successful Application of New DPF Systems” Aachener Kolloquium Fahrzeugund Motorentechnik 2004