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Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

Green Car Congress

Although real-world fuel economy improvements from GDI technology alone are close to 1.5%, they can reach 8% by downsizing and turbocharging the engine, which can be achieved on GDI engines without loss of power compared to PFI engines. There were no statistically significant differences in the effects of cold-start on GDIs and PFIs.

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DOE FY17 SBIR Phase I Release 2 topics include fuel cells, EV batteries, engines

Green Car Congress

The intent of this subtopic is to pursue the development of technologies that can improve the fuel economy of vehicles with modern Gasoline Direct Injection (GDI) engine powertrains while meeting regulated exhaust emissions requirements with modern 3-way catalytic converters under stoichiometric conditions.

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DOE Co-Optima initiative publishes report reviewing first 12 months; progress on fuels and engines

Green Car Congress

Engine downsizing and down-speeding are well suited to take advantage of higher-octane fuels because these engines encounter the knock limit more frequently. Operation under boosted conditions is essential to Co-Optima’s Thrust I effort to maintain acceptable power density for downsized and downsped SI engines.

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Using the PHEV (Plug-In Hybrid Electric Vehicle) to Transition Society Seamlessly and Profitably From Fossil Fuel to 100% Renewable Energy

Green Car Congress

The alternative-fuel car evolved to reduce exhaust emissions and other problems derived from burning fossil fuels. Appendix D: Vehicle Driving Statistics. In fact, the optimized PHEV is much more efficient as a long range liquid fuel vehicle, because the engine is downsized. by Professor Andrew Alfonso Frank. slow charge.

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