Browse Publications Technical Papers 2007-01-4170
2007-10-30

Meeting the US 2007 Heavy-Duty Diesel Emission Standards - Designing for the Customer 2007-01-4170

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

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

HD Base Engine Development to Meet Future Emission and Power Density Challenges of a DDI™ Engine

2007-01-4225

View Details

TECHNICAL PAPER

Developing Diesel Engines to Meet Ultra-low Emission Standards

2005-01-3628

View Details

TECHNICAL PAPER

Testing of Catalytic Exhaust Emission Control Systems Under Simulated Locomotive Exhaust Conditions

2011-01-1313

View Details

X