Remove 2013 Remove Conference Remove Fuel Economy Remove Gasoline
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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. —Dan Akerson. Vehicle electrification.

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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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EIA: growing octane needs widen price difference between regular and premium in US

Green Car Congress

The difference between US average retail prices for premium and regular gasoline reached $0.50/gallon In the US, retail gasoline is usually classified by its octane rating: regular gasoline with a typical octane rating of 87 and premium gasoline with a typical octane rating of 91 to 93.

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Ford / AVL study concludes mid-level ethanol blend attractive as a long-term future fuel for use in optimized engines in US

Green Car Congress

A study by a team from Ford Motor Company and AVL has concluded that a mid-level ethanol blend—greater than E20 but less than E40—appears to be attractive as a long-term future fuel for the US for use in engines optimized for the higher octane blend. These include: Lower energy content than that of gasoline. Earlier post.)

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UC Berkeley leading project investigating partial fuel stratification and microwave-assisted sparkplugs for LTC engines

Green Car Congress

One focus of the project will be centered on light- and heavy-duty vehicles running on gasoline/ethanol blends in order to improve engine efficiency and lower emissions. Premixing can be accomplished either with port fuel injection (PFI) as indicated in the figure, or with early direct injection (DI). Credit: Saxena and Bedoya (2013).

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Perspective: A View Into the New GM

Green Car Congress

The morning session started out with an hour long press conference, the highlight being the unveiling of the Volt’s 230 mpg preliminary EPA city fuel economy finding ( earlier post ), as well as a tour showing selected elements from the studios of the four GM North American brands: Chevrolet, GMC, Buick and Cadillac.

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CPT and Eminox to collaborate on development of retrofit electric supercharging and aftertreatment solutions for heavy-duty vehicles

Green Car Congress

The additional control of compressed air for transient performance provided by Cobra means that we can purge diesel particulate filters and other forms of exhaust after-treatment for NO x reduction and, most importantly, without compromising fuel economy. Phil Bush, technology manager at Eminox. —Andy Dickinson. Earlier post.)

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