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EIA: trends in downsized engine design leading to increased demand for higher-octane gasoline

Green Car Congress

One significant trend is engine downsizing coupled with turbocharging. Smaller, turbocharged engines can be used to raise fuel economy while meeting or exceeding the power and torque of larger engines, allowing engine downsizing and improved fuel economy with little or no performance compromise. of new gasoline-fueled LDV sales.

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HyBoost demonstrator debuts at LCV2011; 50% by swept volume downsizing with low-cost electrification

Green Car Congress

The HyBoost concept is based on a 2009 Ford Focus in which a 2.0L In implementing this 50% downsizing by swept volume, the research team delivered zero degradation in driveability, performance or acceleration. Earlier post.). naturally aspirated four-cylinder gasoline engine has been replaced with a 1.0L three-cylinder EcoBoost engine.

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Report: Japan carmakers downsizing in Europe as market shrinks

Green Car Congress

’s decision to cut stop producing the Colt subcompact there highlight the a downsizing trend in Europe for Japanese carmakers as the new-vehicle market there shrinks. The government ended its subsidies for replacing old cars in September 2009. The Nikkei writes that Daihatsu Motor Co.’s Earlier post.).

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Concept: Downsized and Supercharged Hybrid Pneumatic Engine for 30%+ Reduction in Fuel Consumption

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Schematic of downsized and supercharged four-stroke hybrid pneumatic spark injection engine. The reduction in fuel consumption is obtained mainly through enabling the effective use of a heavily downsized engine, rather than from regenerative efficiency. The engine has two intake and two exhaust valves per cylinder. Dönitz et al.

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DENSO Develops Exhaust Gas Temperature Sensor With Improved Temperature Detection Accuracy

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DENSO Corporation has improved the temperature detection accuracy of its newly developed diesel exhaust temperature sensor. To improve the sensor’s temperature accuracy, DENSO increased the probe length to almost twice that of the conventional product and extended the sensing tip into the exhaust pipe. Click to enlarge.

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Daimler Trucks NA SuperTruck achieves 115% freight efficiency improvement over 2009 baseline; 50.2% engine BTE

Green Car Congress

These tests resulted in the combined 115% freight efficiency improvement over a 2009 baseline truck. The Freightliner SuperTruck uses a downsized and downsped 10.7-liter The Freightliner SuperTruck features a low-back-pressure, next-generation aftertreatment system that efficiently removes NO x from the exhaust stream.

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Eaton contributing several components to DOE SuperTruck II program

Green Car Congress

SuperTruck II is a partnership between the DOE, truck manufacturers and equipment suppliers seeking to improve freight efficiency to more than 100% over an equivalent 2009 model, and to improve engine brake thermal efficiency performance to 55% or greater. Department of Energy’s (DOE) SuperTruck II program. Earlier post.).

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