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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

As you may recall, Mercedes' performance division, AMG, recently put up the white flag on the speed wars. This basically means that they are now looking for more efficiency rather than more brute horsepower. Their previous focus on power came at the expense of fuel economy, natürlich. How will the efficiency shift play out? AMG is welcoming direct injection and Stop & Start (micro hybrid) systems, which will be installed in all 2010 models, two years earlier than expected. The new piezo

One of the keys to helping clean up diesel emissions and improving performance in recent years has been the piezo electric fuel injectors developed by companies like Bosch, Continental and Delphi. Previous injector designs used electro-magnetic solenoids to move the injector needle and feed fuel to the combustion chambers. In piezo injectors, a stack of piezo crystals expand when an electric current is applied. The piezo actuators respond more precisely and repeatably providing more accurate fue