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Pinnacle’s opposed-piston scooter engine can meet NOx target with lean operation and ignition delay; little fuel economy hit

Green Car Congress

For the target market (the Asian scooter market), the low NO x capability of the Pinnacle engine provides a significant cost benefit to manufacturers. Further, Pinnacle noted, recently developed hardware designed for additional lean limit extension is under test. When the entire vehicle costs around $700, that’s a significant difference.

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GM CEO outlines highlights of fuel economy plan through MY2016: lightweighting; more efficient gasoline and clean diesel engines, electrification

Green Car Congress

Within his talk about the need for a US energy policy at the IHS CERAWeek 2013 energy conference in Houston, GM Chairman and CEO Dan Akerson outlined some highlights of the company’s fuel economy plan through the 2016 model year. More efficient gasoline engines. Clean diesel. —Dan Akerson. Vehicle electrification.

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Dana presenting VariGlide beltless transmission technology at International VDI Conference

Green Car Congress

Dana Holding Corporation will present its VariGlide planetary variator for beltless continuously variable transmissions (CVTs) at the International VDI Conference, to be held 21-22 June 2016, in Friedrichshafen, Germany. In 2012, Dana formed a strategic relationship with Fallbrook Technologies Inc.

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Alumobility study: aluminum top hat provides automakers a lighter, sustainable alternative

Green Car Congress

Introduced at Automotive Circle’s annual EuroCarBody conference, the study’s aluminum top hat achieved 42% weight savings compared to the reference top hat of the current Audi e-tron electric SUV, which uses advanced (AHSS) and ultra-high-strength steels (UHSS). —Mark White, Executive Director of Alumobility.

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FEV’s two-stage VCR system; 5-7% increase in fuel economy using variable length conrods

Green Car Congress

Use of a variable compression ratio (VCR) could be one technology approach to reducing fuel consumption in highly boosted (e.g., downsized, turbocharged) gasoline engine, as operating an engine with higher compression ratios at low load can increase fuel economy compared to operating an engine with fixed compression ratio.

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Eaton optimized TVS scavenging pump managing precision airflow for CARB-sponsored, Achates opposed-piston engine

Green Car Congress

Eaton will supply a TVS (Twin Vortices Series) air pump to manage airflow in the demonstration of the Achates Power two-stroke opposed-piston engine (OP Engine) at the upcoming Internal Combustion Engine Fall Technical Conference in San Diego. Earlier post.). —Mihai Dorobantu.

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GM Study Shows 10% Improvement in Fuel Economy Along With Reduction in Criteria Emissions from Mild Hybridization of 4-Cylinder Diesel

Green Car Congress

In a presentation at the US Department of Energy’s 2010 Direction in Engine-Efficiency and Emissions Research Conference in Detroit (DEER), Cisternino described the results of an internal study that used both testbed experimental engine work as well as vehicle tests using an Opel Corsa equipped with a BAS-enhanced 1.3-liter