Remove Alternative Fuels Remove Downsizing Remove Exhaust
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Split injection Miller cycle with boost decreases knock tendency and increases torque in downsized engine

Green Car Congress

Researchers at Tianjin University in China report that combing split injection to the Miller cycle with boost pressure can effectively decrease the knock tendency and increase the engine torque in a downsized spark-ignition engine. Their paper is published in the journal Fuel. 2017.11.006.

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CPT launching water-cooled electric supercharger for commercial diesel engines

Green Car Congress

Cobra could enable a 5–10% reduction in CO 2 emissions when implemented in conjunction with engine downsizing and down speeding strategies, and potentially more when used in conjunction with alternative fuels, according to CPT. Unlike a turbocharger, Cobra is not dependent on the exhaust gases flowing to do its work.

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Federal-Mogul expands powertrain materials portfolio for more efficient heavy-duty diesel engines

Green Car Congress

A heavy-duty exhaust valve guide with thermal deformation and temperature color scaling demonstrates high side load at high temperatures in contact with the exhaust gas. Federal-Mogul is developing powertrain materials to address conditions such as these. Source: Federal-Mogul. Click to enlarge.

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Lotus Omnivore Engine Shows Up To 10% Better Fuel Economy Than Spray-Guided GDI Engines; Achieves HCCI At Extremely Light Loads

Green Car Congress

Technologies combined in this package are all synergistic and provide a route to the efficient use of alternative fuels, accelerating the displacement of fossil fuels. The automotive industry, including Lotus Engineering, has quite rightly advocated engine downsizing for four-stroke engines. Displacement.

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Researchers propose evaluating alt fuel efficiency based on energy rather than volume; impact of ethanol on vehicle efficiency and GHGs

Green Car Congress

In a policy analysis in the ACS journal Environmental Science & Technology , researchers from the Universities of Cambridge, Exeter and Oxford argue that, due to the increased emphasis on alternative fuels with drastically differing energy densities, vehicle efficiency should be evaluated based on energy rather than volume.

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CPT and Eminox to collaborate on development of retrofit electric supercharging and aftertreatment solutions for heavy-duty vehicles

Green Car Congress

Having better control over the combustion process reduces the emission load on the exhaust aftertreatment systems. Eminox SCRT technology can significantly reduce harmful diesel exhaust gases, particularly in urban operating conditions.

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DOE to award up to $137M for SuperTruck II, Vehicle Technology Office programs

Green Car Congress

Volvo Technology of America LLC will develop and demonstrate a tractor trailer combination with lightweight cab that achieves the freight efficiency goal using alternative engine designs and a variety of system technologies. valve faces, piston crowns, and exhaust ports) to improve fuel economy. General Motors. Description.

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