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Audi using supplementary port fuel injection to address particulates from gasoline direct injection

Green Car Congress

GDI technology provides fuel efficiency benefits from charge air cooling, more facile turbocharging, and the downsizing that these permit. Particle number vs. particle mass for various LDV engine technologies. Source: MECA, Ford Motor Company. Click to enlarge. As described in a paper published in MTZ on the development of the 1.8L

Gasoline 304
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SwRI’s HEDGE Technology Eliminates Low-Speed Pre-Ignition in Highly Boosted Engines

Green Car Congress

The presence of low-speed pre-ignition is considered a major impediment to automobile manufacturers’ efforts to aggressively downsize engines to reduce carbon dioxide emissions. The causes of low-speed pre-ignition events are not completely understood.

Engine 186
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DOE awards Envera $2.8M to develop and to test efficient variable compression ratio engine

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The new engine will achieve high efficiency using the Atkinson Cycle with an 18:1 compression ratio, combined with aggressive engine downsizing. Valve events will also be adjusted with the VVA to trap more air in the cylinders when power is needed. Engine downsizing is a key tool in improving fuel economy. Earlier post.).

Engine 207
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IEA: carbon intensity of global energy supply has barely changed in last 20 years; “window of opportunity in transport”

Green Car Congress

The global energy supply became 6% cleaner from 1971 to 1990,in response to the oil shocks of the 1970s. Engine downsizing and weight reduction represent around 30% of that potential collectively. Vehicle downsizing has enabled considerable efficiency improvements, particularly in OECD regions and since 2005. tCO 2 /TJ (2.39

Carbon 265
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KAUST study focuses on understanding pre-ignition

Green Car Congress

A fuel injector can be heavily damaged by a pre-ignition event (bottom); a new injector is shown above. A fuel injector can be heavily damaged by a pre-ignition event (bottom); a new injector is shown above. Pre-ignition in modern engines is largely attributed to oil-fuel mixture droplets igniting before the spark timing.

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Eaton Highlights Range of New Products to Reduce Fuel Consumption and Emissions

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In the event of slippage it instantaneously engages a hydraulic power supply to transfer extra torque to the wheel with the most traction by modulating the differential from fully open to fully locked, and anywhere in between, depending on driving conditions. The system comprises a deactivation rocker arm and oil control valve.

Eaton 218
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Ford launching major new product push in Europe; fuel economy and 1.0L EcoBoost engine; first Ford full hybrid car for Europe

Green Car Congress

At a “Go Further with Ford” event in Amsterdam, Ford Motor Company detailed plans for an aggressive product acceleration in Europe, targeting opportunities for growth in the large car, SUV and commercial vehicle segments while emphasizing fuel economy and enabling technologies such as the EcoBoost engines. Click to enlarge.