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Control Technology for a Passenger Car Diesel Engine equipped with the DPNR system
Technical Paper
2003-01-1880
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A compact diesel engine with DPNR (Diesel Particulate-NOx Reduction system) has been developed. The new catalytic converter for DPNR has fine porous ceramic wall flow filter similar to a DPF (Diesel Particulate Filter), coated with NOx storage reduction catalyst. It can reduce NOx and particulate matter simultaneously. An exhaust port fuel injection system has been newly developed. It creates rich exhaust gas condition to reduce NOx and SOx, irrespective of lean engine operating conditions. In combination with the exhaust fuel injection and engine improvements, very low exhaust emission level, less than half of the European STEP4 regulation standard, is achieved.
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Ohki, H., Ishiyama, S., and Asano, A., "Control Technology for a Passenger Car Diesel Engine equipped with the DPNR system," SAE Technical Paper 2003-01-1880, 2003, https://doi.org/10.4271/2003-01-1880.Also In
References
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- Tanaka T. et al. “Simultaneous Reduction of PM and NOx- A New After treatment System” 22nd International Vienna Motor Symposium 2001
- Tanaka T. et al. “Development of NOx storage-reduction 3-Way Catalyst - 2 nd Report” JSAE9540958 1995
- Theis Joseph R et al. “The Desulfation Characteristics of Lean NOx Traps” SAE 2002-01-07335 2002