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Hyundai Motor Group unveils CVVD engine technology; +4% performance, +5% fuel economy, -12% emissions

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Hyundai Motor Group has developed the first Continuously Variable Valve Duration (CVVD) technology to feature in future Hyundai and Kia vehicles. CVVD optimizes both engine performance and fuel efficiency while reducing emissions. The innovation was revealed at Hyundai Motorstudio Goyang on Wednesday alongside the Smartstream G1.6

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Toyota implements Atkinson cycle in non-hybrid ESTEC engine; up to 38% thermal efficiency and improved fuel economy

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Further, at low loads, the ESTEC engine improves fuel consumption by 11% in the JC08 mode. Improving the vehicle fuel economy is a must due to the climate change and energy issues. As for the future direction, large amounts of cooled EGR and lean burn technologies are essential to achieve over 40% engine thermal efficiency.

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Volkswagen Millerized 1.5 TSI ACT BlueMotion gasoline engine offers diesel-like fuel economy; derivatives may be applied in hybrid systems

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Volkswagen has developed and deployed a gasoline engine that offers diesel-like fuel economy but is significantly cheaper to buy. TSI ACT BlueMotion delivers 96 kW / 130 PS with combined fuel consumption of 4.8 Currently applied in the new Golf and Golf Variant ( earlier post ), the 1.5 l/100 km (49 mpg US).

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China team propose method to reduce soot and CO emissions without NOx and thermal efficiency penalties in direct-injection natural gas engines

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In a paper in the journal Fuel , Li et al. applied partially premixed combustion mode to a direct-injection natural gas engine based on a 3D model coupled with a dual-fuel chemical kinetic mechanism (n-heptane/natural gas). In a paper in the journal Fuel , Li et al.

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Cummins ATLAS light-duty diesel surpasses fuel economy targets, with criteria emissions lower than Tier 2/Bin 2

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The Cummins team not only surpassed all fuel-economy targets, but also achieved criteria emissions lower than the stringent Tier 2/Bin 2 levels. Test cycle fuel economy (mpg). The Highway Fuel Economy Test (HFET) and FTP-75 Test (city) cycles demonstrated fuel economy above 35 mpg (6.72

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New 4-cylinder 2.3L EcoBoost on Lincoln MKC small SUV; future EcoBoost prospects

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Ford says the engine can deliver up to 15% better fuel economy than comparable six-cylinder engines. Featuring a twin-scroll turbocharger and a three-port integrated exhaust manifold (IEM), the 2.3-liter Two pivotal factors are the three-port integrated exhaust manifold cylinder head and a twin-scroll turbocharger.

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Enerpulse explains mechanism by which pulsed energy ignition plugs enhance fuel economy

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Enerpulse Technologies said that it has further identified the underlying mechanism by which its its pulsed energy ignition technology improves fuel economy, reduces emission and delivers higher torque in spark ignited (SI) internal combustion (IC) engines. Earlier post.)