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Downsized 4.0 TFSI for Audi S8 cuts fuel consumption 23% compared to predecessor; cylinder deactivation and start-stop

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TFSI twin turbo V8 for the upcoming Audi top-of-the-line S8 ( earlier post ), due on market in early summer 2012, develops 382 kW (520 hp), while consuming 10.2 Weighing 220 kilograms (485 lb) including all key add-on parts, the V8 is comparatively light. The demand-controlled oil pump varies oil pressure in two stages.

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IEA: carbon intensity of global energy supply has barely changed in last 20 years; “window of opportunity in transport”

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to hold warming to 2 °C as outlined in the IEA Energy Technology Perspectives 2012 (ETP) 2 °C Scenario (2DS). The global energy supply became 6% cleaner from 1971 to 1990,in response to the oil shocks of the 1970s. In 2012, sales of hybrid-electric vehicles passed the one million mark. tCO 2 /TJ (2.39 tCO 2 /TJ (2.37

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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. In addition, there is a new dimension from the substitution of oil, which is largely imported, with electricity and hydrogen, which are largely generated from indigenous energy resources.

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Nissan unveils 2013 Altima Sedan; 38 mpg highway

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liter V6 remains rated at 270 hp (2012 kW) and 258 lb-ft (350 N·m) of torque. For this next-generation design, 70% of the parts have been redesigned, which, along with a downsized oil pump, lower oil level and low viscosity oil results in up to 40% reduction in internal friction (versus the previous design).

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Ford Unveils Next-Generation Global Focus at NAIAS; Features New 2.0L DI Engine with Powershift Dual-Clutch Transmission for NA Market

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The new Focus will be one of up to 10 unique models to be built from Ford’s new global C-car platform, which is expected to generate total sales in all regions of 2 million units annually by 2012—a doubling Ford’s 2008 C-car volumes. “People downsize cars, not expectations. liter engine.

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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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At the workshop, Kiyoshi Fujiwara, Mazda Executive Officer in charge of project planning and development, suggested unofficially that Mazda engineers think they ultimately may be able to approach 60% thermal efficiency with combustion engines for light duty vehicles. Extreme compression ratio rather than downsizing.

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Pinnacle 4-stroke opposed-piston SI engine shows fuel economy improvements of between 30-60% at light loads, 12-30% at medium loads over conventional

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The results represent a light-load indicated efficiency improvement of 15-30% (up to 40.9%). The company presented these latest test results in a paper at the SAE 2012 World Congress in Detroit. The sleeve valves have a short heat rejection path directly to lube oil. SAE Paper 2012-01-0378 ([link]. Active sleeve cooling.

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