Diesel: Cleaner combustion

To achieve U.S. Super Ultra-Low Emission (SULEV) and Tier II Bin 2 requirements for diesel combustion engines is the aim of a research project on advanced diesel technology.
This might bring diesels in one line with gasoline hybrid and fuel cell powered vehicles in the future of environmentally automotive products.

Started in late 2005, early project focus has been on developing technologies to deliver engine-out exhaust emissions (without NOx aftertreatment) that achieve stringent Tier II Bin 5 emission requirements, delivering NOx levels approximately one-sixth those currently proposed for Euro 5. These technologies include advanced air handling systems, two-stage boosting, advanced exhaust gas recirculation and application of closed-loop cylinder pressure-based engine controls. In parallel, work is being carried out to develop an advanced exhaust aftertreatment system. Combining advanced aftertreatment with engine optimisation will allow demonstration of a system capable of meeting the requirements of US SULEV/Tier II Bin 2, thereby achieving NOx levels less than one-tenth of currently proposed Euro 5 levels.

The engine is being developed with a competitive power rating of 65kW/l to meet U.S. emissions regulations for both sea level and altitude compliance. These advanced diesel technologies will be integrated into a vehicle capable of meeting the lowest current world-wide exhaust emissions standard (SULEV, Tier II Bin 2) without compromising customer appeal, while maintaining significant fuel efficiency advantage over current US equivalent gasoline products.

Related news: Foursprung, P4MR, diesel

Source: all4engineers

Read more

Read what others are saying about it: Bloglines, Feedster, Technorati