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Audi using supplementary port fuel injection to address particulates from gasoline direct injection

Green Car Congress

In part-load operation, the indirect injection supplements direct gasoline injection to improve fuel economy and to reduce the output of particulates from the engine. GDI technology provides fuel efficiency benefits from charge air cooling, more facile turbocharging, and the downsizing that these permit. Earlier post.). Earlier post.)

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Volvo to concentrate on hybrids and downsized engines for US

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Volvo Car Corporation will rely on a powertrain strategy based on its new downsized 4-cylinder VEA (Volvo Environmental Architecture) engine platform ( earlier post ) and hybrids for the US market, said John Maloney, recently appointed President of Volvo Cars, US, in an interview at the Detroit Auto Show. Earlier post.) Earlier post.)

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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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Ford researchers suggest using higher ethanol blends to boost the minimum octane number of regular-grade gasoline

Green Car Congress

Using higher volume blends of ethanol to leverage the alcohol’s inherent high octane rating to produce ethanol-gasoline blends with higher octane numbers could yield “substantial societal benefits”, according to a team of researchers from Ford Motor Company. Anderson and colleagues suggest in a new paper published in the journal Fuel.

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

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Source: SwRI, DEER 2012. 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. Click to enlarge.

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Opel presents new midsize gasoline engine at Aachen Colloquium; fuel consumption down 13%, torque and power up 33%

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Opel revealed more details about its new mid-size gasoline engine family at the Aachen Colloquium in Germany. For mass reduction the midsize gasoline engine features a two-piece crankcase design, supported at the lower end by a die-cast aluminum bedplate. SIDI engine. Click to enlarge. Earlier post.) The all-new 1.6-liter,

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Ricardo HyBoost “Intelligent Electrification” project awarded automotive environmental prize by Institution of Mechanical Engineers

Green Car Congress

The Automobile Division of the Institution of Mechanical Engineers has awarded its Prize for the Environment to Ricardo, Ford Motor Company, Controlled Power Technologies and Valeo engineers for their paper HyBoost—An Intelligently Electrified Optimized Downsized Gasoline Engine Concept. Earlier post.). Earlier post.)

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