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MECA report assesses technology feasibility for heavy-duty diesel trucks to meet lower NOx standards by 2024

Green Car Congress

Technologies such as cylinder deactivation (CDA), high efficiency variable geometry turbochargers with exhaust gas by-pass, and start-stop systems are only some of the commercially available fuel saving technologies that can be implemented by 2024. The cost of controlling NO x to 0.05 g/bhp-hr in 2024 and to 0.02 Credit: MECA.

Standards 191
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Study finds highly-turbocharged alcohol-fueled DISI engines could be more efficient than diesels

Green Car Congress

Alcohol-based transportation fuels from a wide range of biomass feedstocks including agricultural, forestry, municipal and industrial waste and specially grown crops and trees can potentially offer a substantial substitute for oil derived fuel. More modest downsizing up to 5 liters could offer a practical solution. In this manner a 3.6

Diesel 218
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DOE to Award $187M to 9 Projects to Improve Vehicle Efficiency for Heavy-Duty Trucks and Passenger Vehicles

Green Car Congress

Develop and demonstrate a highly efficient and clean diesel engine, an advanced waste heat recovery system, an aerodynamic Peterbilt tractor and trailer combination, and a fuel cell auxiliary power unit to reduce engine idling. 38,831,115. Daimler Trucks North America, LLC. 39,559,868. Grantee Project Award. Chrysler Group LLC. 14,458,572.

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Volvo Trucks SuperTruck demonstrator improves freight efficiency by 88%, fuel efficiency by 70%

Green Car Congress

A key part of the overall efficiency gain is the downsized 11-liter Volvo engine, featuring advanced fuel injection, cooling, oil and turbo-charging systems, as well as new “wave” pistons and other improvements. This new design added “wave” bumps on the side of the piston bowl, which allows the fuel to burn more cleanly.).

Volvo 150
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2014 Sprinter van for US standard with new 2.1L diesel; new driver assistance features

Green Car Congress

Since 2010, all Sprinters in the US have been powered by BlueTEC diesel engines, marking the first use of BlueTEC technology, with its selective catalytic reduction (SCR) exhaust aftertreatment system, in the commercial van market here. The two overhead camshafts actuate 16 intake and exhaust valves.

2014 306
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MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

Green Car Congress

This has resulted in higher catalyst loading per volume of substrate and led to downsizing of systems from those available in 2010. Founded in 1976, MECA is a nonprofit trade association of the world’s leading manufacturers of clean technology solutions for all mobile sources. —MECA Executive Director, Rasto Brezny.

Emissions 291
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Citroën introduces first members of new 3-cylinder gasoline engine family; 1.0L and 1.2L PureTech reduce fuel consumption about 25%

Green Car Congress

The design brief for the new-generation PureTech engines called for a clean break in powertrain development. To achieve these results, PureTech development called for a number of changes, chief among which were: Downsizing. The regulated, variable-capacity oil pump continually provides optimal lubrication pressure.

Engine 281