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Meeting the US 2007 Heavy-Duty Diesel Emission Standards - Designing for the Customer
Technical Paper
2007-01-4170
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The paper covers the design and development of Heavy-Duty (HD) Diesel engines that meet the 2007 HD US EPA emission standards. These standards are the most stringent standards in the world for on-highway HD diesel engines, and have driven the application of new technologies, which includes: particulate aftertreatment, crankcase ventilation systems, and second generation cooled EGR.
The paper emphasizes the importance of designing the product to meet the tough expectations of the trucking industry - for lowest total cost of ownership, lowest operating costs, high uptime, ease of maintenance, high performance and durability. A key objective was that these new low emission engines should meet or exceed the performance, reliability and fuel economy standards set by the products they replace. Additionally, these engines were designed to be fully compatible and emissions compliant with bio-diesel B20 blends that meet the ASTM and EMA fuel standards.
To meet these exacting requirements, extensive use was made of Analysis-Led Design, which allows components, sub-systems and the entire engine, aftertreatment and vehicle system to be modeled before designs are taken to prototype hardware. This enables a level of system and sub-system optimization not previously available.
The paper will present results from the development of Cummins 2007 HD engine and aftertreatment systems, including:
- Engine and Aftertreatment Integration for Optimum Performance
- NOx control using Cooled EGR
- Crankcase Gas Filtration for HD Engines
- Application of Analysis-Led Design Tools
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Citation
Dollmeyer, T., Vittorio, D., Grana, T., Katzenmeyer, J. et al., "Meeting the US 2007 Heavy-Duty Diesel Emission Standards - Designing for the Customer," SAE Technical Paper 2007-01-4170, 2007, https://doi.org/10.4271/2007-01-4170.Also In
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