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Development of a Euro VII-Compliant Diesel Combustion System for Light Commercial Vehicles Dumarey Automotive Italia S.p.A
- Format:
- Book
- Conference/Event
- Author/Creator:
- Belgiorno, Giacomo, author.
- Conference Name:
- 17th International Conference on Engines and Vehicles (2025-09-14 : Capri, Italy)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2025
- Summary:
- Recent European regulations introduced in the transportation sector have increased stringency on tailpipe CO2 and regulated emissions, starting from 2025. The development of advanced technologies and the utilization of alternative fuels for internal combustion engines play a key role in the short- to mid- term in complying with such regulations and supporting sustainable transition of the transportation sector. In this study, the focus has been to develop an advanced Diesel combustion system for light commercial vehicles application in compliance with the latest Euro VII regulations and with the primary aim to improve fuel economy. The adopted methodology began with the virtual development and optimization of the entire combustion system encompassing bowl shapes, injector nozzles, and intake port specifications, leveraging a Machine Learning approach based on high-fidelity 3D CFD combustion models. Two virtually optimized combustion system "recipes" have been identified and then experimentally investigated to fine-tune the nozzle specifications, injection strategies and charge motion by means of Design of Experiments approach. The results have been compared with the baseline combustion system in terms of performance, efficiency, criteria pollutants, and combustion metrics. The recorded improvements have been notable, with a combined reduction of Brake Specific Fuel Consumption (BSFC) up to ~4% and soot emissions in excess of 90% compared to the baseline (at same level of NOx), enabling in turn a significant rematching of engine out NOx emissions in the spirit of Euro VII stringency
- Notes:
- Vendor supplied data
- Publisher Number:
- 2025-24-0035
- Access Restriction:
- Restricted for use by site license
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