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GASOLINE GOES DIRECT
Ricardo plc and Robert Bosch Corporation have joined skills to develop an advanced, turbocharged direct injection gasoline engine system. The prototype system, dubbed DI BOOST, is expected to offer superior performance and fuel economy while also achieving super ultra low emission vehicle (SULEV) standards.
Two prototype DI BOOST engines are currently being developed, which combine the performance-enhancing capabilities of modern valve actuation and turbocharging, with the improved fuel efficiency and low emissions of gasoline direct injection. The engines are based on GM's 3.6L V6 engine.
The first phase of DI BOOST, which involved the designing and procuring of prototype engines was completed in January 2006. The next phase, which started in March 2006, concentrates on base engine calibration for best efficiency and driveability. In parallel, vehicle integration is nearing completion. Future phases aim to focus on achieving SULEV emissions levels via high-pressure start capability and split injection.
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