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Study finds highly-turbocharged alcohol-fueled DISI engines could be more efficient than diesels

Green Car Congress

Highly turbocharged alcohol-fueled direct-injection spark-ignition (DISI) engines operated at a high compression ratio could be as or more efficient than diesel engines while also providing advantages of lower vehicle cost, lower emissions and higher power, according to a recent modeling study by Leslie Bromberg and Daniel Cohn at MIT.

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Mazdas new SKYACTIV gasoline and diesel engines are steps on the road to its Ideal Engine; focus on compression ratio

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Mazda’s roadmap to the ideal internal combustion engine. the step-by-step introduction of electrification to SKYACTIV internal combustion engines: stop-start, followed by regenerative braking, followed by electric motor drive technologies. Energy balance in an internal combustion engine. Click to enlarge. Click to enlarge.

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Revised Nissan Juke offers 1.2 DIG-T turbocharged engine

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Among the changes in the new Juke are a new design at the front and rear with greater emphasis on both premium refinement and sporty design cues; a new downsized 1.2-liter liter turbocharged engine offering greater performance, economy and lower emissions; a revised 1.6-liter Engines and drivetrains. The existing 1.5

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Eaton contributing several components to DOE SuperTruck II program

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SuperTruck II is a partnership between the DOE, truck manufacturers and equipment suppliers seeking to improve freight efficiency to more than 100% over an equivalent 2009 model, and to improve engine brake thermal efficiency performance to 55% or greater.

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California ARB amends diesel rules to reduce cost of compliance

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The California Air Resources Board (ARB) has amended its diesel rules to offer businesses a variety of options to comply with the regulations to reduce soot from diesel engines. No other state, and no other nation has such an extensive set of rules to slash pollution from diesel engines. forklifts). Off-Road (e.g.,

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Dearman begins on-vehicle testing of Gen 2 transport refrigeration system powered by liquid air engine; lighter, more efficient

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The system is powered by an innovative, liquid nitrogen Dearman engine, which replaces the standard diesel engine. Since then the Dearman engine has been re-designed and it is already proving to be 30% lighter, 30% smaller, and 30% more efficient than its predecessor. Dearman liquid air engine, Gen 2 design.

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Peugeot Launches New Marque Plan with Downsizing, Hybrids and Plug-ins for Two-, Three- and Four-Wheeled Vehicles; Unveils SR1 Hybrid Concept

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To achieve its goals, Peugeot is relying on a new products strategy that includes electric propulsion (the i0n i-MiEV-derived electric car) and E-Vivacity scooter from 2010; diesel hybrid in the 3008 from 2011 ( earlier post) ; e-HDi (microhybrid) from 2011 on the entire diesel range; and a plug-in diesel hybrid in 2012.