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Studies highlight effects of different gasoline components on fuel economy, combustion and emissions

Green Car Congress

Researchers at Jilin University (China) have investigated the effect of gasoline components on fuel economy, combustion and emissions in a GDI (gasoline-direct-injection) engine. The team subsequently followed up this first study with a second, exploring the effects in a PFI (port-fuel-injection) engine.

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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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liter ESTEC (Economy with Superior Thermal Efficient Combustion) in-line 4-cylinder Gasoline Engine (1NR-FKE). 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. 1 and water-cooled EGR.

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Sandia, TUD optical diagnostic helps reduce emissions while improving fuel economy

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The acquired data provides important insights into the fuel spray motion as well as the timing and quantity of soot formed under a wide range of conditions. The sunlight changes direction as it passes from cooler air through hotter air, and these steered light rays give the impression that there is water in the road—a mirage.

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CPT, TU Wien study finds 48V mild diesel hybrid cuts engine-out NOx 9%, 4.5% fuel economy improvement

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A joint study by Controlled Power Technologies (CPT) and Austria’s Technische Universität Wien (TU Wien) into 48V diesel mild hybrid technology verified a 9% reduction of NO x in raw engine-out emissions, while retaining the fuel economy and CO 2 benefits of diesel engine technology. —Paul Bloore.

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2021 Jeep Gladiator available with 3rd generation 3.0L EcoDiesel

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The expected fuel economy ratings will deliver the highest driving range on one tank of fuel yet for Gladiator. There are more than 40 individual shift maps to optimize shift points for fuel economy, performance and 4x4 capability. 1 to improve fuel economy and reduce engine noise. axle ratio.

Jeep 269
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Tsinghua studies on alcohol-gasoline dual fuel engines show fuel efficiency and particle number benefits

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Researchers at Tsinghua University in China are studying the effects of Dual-Fuel Spark Ignition (DFSI) combustion fueled with different alcohols and gasoline. Alternatively, in the second study, gasoline–alcohol DFSI is based on PFI of gasoline and DI of alcohols.). —Liu et al.

Gasoline 150
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New Porsche 911 Turbo improves fuel economy by 16%

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liter flat 6-cylinder engine with direct gasoline injection produces 520 hp (383 kW) in the 911 Turbo and 560 hp (412 kW) in the S model. Porsche continues to be the only carmaker to offer two turbochargers with variable turbine geometry for a gasoline engine. The bi-turbocharged 3.8-liter The car’s top speed is 318 km/h.

Porsche 225