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Torotrak to present extreme engine downsizing solution at Dresden supercharging conference

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V-Charge system with mechanical variable drive outperforms conventional boosting methods on downsized gasoline engine. These will include simulation using a GT-Power model and engine dynamometer testing which was carried out at the University of Bath Powertrain and Vehicle Research Centre (PVRC). Click to enlarge.

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Nissan awards Eaton “Global Innovation Award” for TVS supercharger in 1.2L DIG-S engine

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Eaton Corporation has received one of Nissan Motor Co.’s s “Global Innovation Award” for the Eaton TVS (Twin Vortices Series) supercharger used in the downsized DIG-S engine in the Micra. Eaton’s TVS superchargers feature patented high-speed rotors driven directly from the engine’s crankshaft. Earlier post.).

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Eaton Highlights Range of New Products to Reduce Fuel Consumption and Emissions

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The all-new electronic limited slip differential, Ultra Posi is designed for front and rear-wheel drive vehicles, performs comparably to four-wheel-drive and all-wheel-drive systems and provides up to a 10% savings in fuel economy, Eaton says. —Chris Ostrander, vice president and general manager - Eaton Torque Controls.

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Lontra releases BladeBoost supercharger demonstrator results; next generation under development

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This enables the boost of downsized engines to be completely controlled at any point on the operating cycle, including part-load. The graphs below show the measured shaft power from Lontra’s test stand, with the BladeBoost variable inlet port set at its maximum and minimum opening: Measured shaft power. Earlier post.).

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DOE awards Envera $2.8M to develop and to test efficient variable compression ratio engine

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The new engine will achieve high efficiency using the Atkinson Cycle with an 18:1 compression ratio, combined with aggressive engine downsizing. To attain high power levels, new high-efficiency supercharging technology will be used to boost the engine and provide V8-like performance from only four cylinders. Earlier post.).

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Downspeeding and supercharging with transmission optimization can deliver fuel economy improvement over downspeeding and turbocharging

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Researchers from Southwest Research Institute (SwRI) and Eaton have demonstrated the application of downspeeding and supercharging a diesel vehicle, in conjunction with optimizing transmission gear ratios and the shift schedule, to deliver a greater improvement in fuel economy than a downsped and turbocharged configuration.

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CALSTART survey of major auto suppliers finds 70% don’t want US to change CAFE targets; split on amount of electrification needed

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When presented with a list of technologies analyzed within a National Academies of Science report ( earlier post ) that might be used to meet fuel-efficiency standards, suppliers picked turbocharging and engine downsizing, along with higher-speed automatic transmissions, as the most critical.