Emissions Concept for Vehicle Diesel Engine Supercharged with COMPREX
® 880008
The main components of vehicle diesel engine emissions are nitrogen oxides and particulates. The emissions concept adopted for pressure-wave supercharging with controlled EGR and particulate trap, focuses on both components. In conjunction with electronic EGR-control the spontaneous response of the supercharger achieves minimum deviations from optimum air excess values, even during transients. In the US city cycle an NOx reduction to 35 % of the reference emission, without sacrificing fuel economy was established. Featuring a particulate trap arranged between engine and supercharger this system increases the regeneration probability and as a result of the improved supercharsinp, efficiency achieves satisfactory transient behavior, Catalytic coating of the rotor constitutes an additional means of reducing emissions.
Citation: Mayer, A. and Pauli, E., "Emissions Concept for Vehicle Diesel Engine Supercharged with COMPREX®," SAE Technical Paper 880008, 1988, https://doi.org/10.4271/880008. Download Citation
Author(s):
Andreas Mayer, Ernst Pauli
Affiliated:
BBC Brown Boveri, Research and Development Comprex®
Pages: 14
Event:
SAE International Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Developments in Diesel Particulate Control-SP-0735
Related Topics:
Diesel exhaust emissions
Nitrogen oxides
Diesel / compression ignition engines
Particulate filters
Fuel economy
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