The Impact of Injection Strategies on Emissions Reduction and Power Output of Future Diesel Engines

Gavin Dober; Simon Tullis; Godfrey Greeves; Nebojsa Milovanovic; Martin Hardy; Stefan Zuelch

doi:10.4271/2008-01-0941

2008-04-14

The Impact of Injection Strategies on Emissions Reduction and Power Output of Future Diesel Engines 2008-01-0941

Future light, medium and heavy duty diesel engines will need to satisfy the more stringent emission levels (US 2014, Euro 6, etc.) without compromising their current performance and fuel economy, while still maintaining a competitive cost. In order to achieve this, the Fuel Injection Equipment (FIE) together with the pressure charging, cooling system, exhaust after treatment and other engine sub-systems will each play a key role. The FIE has to offer a range of flexible injection characteristics, e.g. a multiple injection train with or without separation, modulated injection pressures and rates for every injection, higher specific power output from the same injector envelope, and close control of very small fuel injection quantities.

The aim of this paper is to present Delphi's developments in fuel injection strategies for light and medium duty diesel engines that will comply with future emission legislation, whilst providing higher power density and uncompromised fuel economy.

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The Impact of Injection Strategies on Emissions Reduction and Power Output of Future Diesel Engines 2008-01-0941

SAE MOBILUS