At the SIA (French Automotive Engineers Society) Congress in Rouen, France this week, Delphi will be presenting information on its latest-generation direct fuel injection and control systems for diesel engines. Delphi produces both electromagnetic servo injectors and the more advanced piezo-electric injectors. For the latest editions of both systems, Delphi has bumped the maximum operating pressures from the 2,000 BAR level that has been used in the last few years up to 2,400 BAR (34,800 psi). T
Last March at the Geneva Motor Show, Lotus announced its new Omnivore research engine. The Omnivore is a two-stroke direct injected engine designed to take advantage of the latest in electronic engine management to allow it to run on just about any liquid fuel (hence the name). In the time since the initial announcement, the boffins at Lotus Engineering have been exercising their creation on the dyno stand to evaluate the performance.
Last summer we had the chance to meet up with GM powertrain researcher Paul Najt and drive GM's prototype HCCI engines. Homegeneous charge compression ignition engines basically take some of the technical concepts behind diesel engines and combine it with a gasoline engine. The result is a new power system that achieves most of the benefit of diesel efficiency without the problems of soot and NOx emissions. As features like variable valve timing, direct fuel injection, cylinder pressure sensors
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