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Study finds catalyzed gasoline particulate filters effective at reducing particulate and PAH emissions from GDI engines

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Their study is publishedin the ACS journal Environmental Science & Technology. The researchers assessed the gaseous, particulate, and genotoxic pollutants from two current technology gasoline direct injection vehicles when tested in their original configuration and with a catalyzed gasoline particulate filter (GPF).

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Simulation study finds “Millerizing” the Scuderi split-cycle engine could enable 50% engine downsizing with retention of power and torque, along with reduced fuel consumption

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Simulation study finds Miller version of Scuderi engine can deliver twice the BMEP as naturally aspirated version, theoretically enabling 50% downsizing while maintaining performance. Applying the Miller cycle to the Scuderi engine (right) entails downsizing of the compression cylinder. Source: Scuderi. Click to enlarge.

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

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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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PSA to commercialize SwRI-developed Dedicated-EGR technology in high-efficiency gasoline engines by 2018

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During its recent Innovation Day presentations ( earlier post ), PSA Peugeot Citroën announced that it will commercialize high-efficiency gasoline engines featuring dedicated exhaust gas recirculation (D-EGR), derived from a collaborative program with SwRI in the US. Source: SwRI, DEER 2012. Click to enlarge. Alger, T.F.

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Federal-Mogul lean tool steel offers an easily-machined, durable, valve seat material for downsizing and alt-fuel engine demands

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Federal-Mogul Corporation has developed a cost-effective new material for valve seat inserts that helps manufacturers meet the durability demands of engine downsizing and alternative or high-octane blended fuels.

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Study finds technology cost of achieving European 2020 LDV CO2 targets more than offset by resultant fuel savings

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The technical and macro-economic study, commissioned by the European Climate Foundation, focuses on light-duty vehicles. The Phase I study assesses two scenarios against a reference case in which vehicle efficiency is frozen at the current level. The project is taking a phased approach.

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Ford study suggests GDI engines can meet coming California and US PM emissions standards over 150k miles; more work to be done

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However, unlike conventional gasoline engines, gasoline direct injection engines produce particulate matter, as do diesels, and emission controls will become an issue the technology must address as standards for particle mass tighten, and also as standards for particle numbers emerge. gasoline blend. Earlier post.)

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