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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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Since this energy loss is primarily thermal in nature and can be attributed to the exhaust, cooling system, and engine and transmission surfaces, Mazda’s R&D team’s central focus is on improving the engine’s thermal efficiency cost-effectively. Extreme compression ratio rather than downsizing. Although downsizing—i.e.,

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Renault 2010 Environment Workshop, Part 1: Combustion Engine Technology and Product Plans

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Renault’s ongoing downsizing strategy is aimed at reducing the cubic capacity of its engines in order to bring down fuel consumption and CO 2 emissions, without detracting from performance. The downsizing process involved shortening the piston stroke by reducing the size of the crank pin and conrod assembly. Select Engines.

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Fiat Launches New 1.8L Gasoline Direct-Injection Turbo in Lancia Delta

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Di Turbo Jet E5 drive torque is comparable to the one of an aspirated V6 engine which is almost twice its displacement, according to Fiat, but with significant efficiency gains through the downsizing. Lastly, the exhaust ducts were designed to work in tune with the exhaust manifold and maximize its pulse converter effect.

Gasoline 150
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Lexus NX compact utility arrives in North America

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liter turbocharged gasoline engine has a combination water-cooled cylinder head, integrated exhaust manifold and twin-scroll turbocharger. To minimize turbo lag, the four-into-two exhaust manifold system pairs cylinders according to their expansion or compression stroke to reduce pumping losses and eliminate exhaust gas interference.

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2014 Sprinter van for US standard with new 2.1L diesel; new driver assistance features

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Since 2010, all Sprinters in the US have been powered by BlueTEC diesel engines, marking the first use of BlueTEC technology, with its selective catalytic reduction (SCR) exhaust aftertreatment system, in the commercial van market here. The two overhead camshafts actuate 16 intake and exhaust valves.

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VW launches new Sharan MPV; up to 14.3% more fuel efficient; stop-start, battery regen standard

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All diesel engines are fitted with an SCR catalytic converter. In the large Sharan the downsized engine consumes on average 6.4 SCR catalytic converter. All Sharan TDIs are fitted with an oxidation catalytic converter and diesel particulate filter complete with SCR system (Selective Catalytic Reduction). The Sharan 1.4

Standards 150
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Viable exhaust-driven on-board ethanol reforming for improvements in fuel economy and emissions

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A team at Monsanto and colleagues at AVL Powertrain have successfully designed and demonstrated an onboard low-temperature ethanol reformer that can be driven by exhaust heat. Many papers have described high-temperature steam reforming of ethanol at around 600 °C but.this temperature is too high to be driven by engine exhaust.