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Environment Canada/MECA team assesses black carbon emissions in GDI engine exhaust; evaluation of prototype gasoline particulate filter

Green Car Congress

Although gasoline direct injection engines (GDI) are a favorable technology for reducing fuel consumption and greenhouse gas emissions, recent studies have shown that GDI vehicles could emit more PM than traditional PFI (gasoline port fuel injection) vehicles as well as heavy-duty diesel trucks equipped with diesel particulate filters.

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SwRI simulations show turbocharged Scuderi Engine could reduce a standard 2011 Nissan Sentras fuel consumption by up to 35% on FTP cycle

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Modelled results of fuel consumption in 2011 Nissan Sentra. The Sentra model was simulated through a standardized Federal Test Procedure-75 (FTP-75) drive cycle for each SSC engine design. up to 54% increase in MPG) was achievable when compared to the model Nissan Sentra using a stock engine without fuel cutoff.

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Army Research Lab team working to design piston engines optimized for JP-8

Green Car Congress

Researchers at the US Army Research Laboratory’s (ARL) Combustion Research Laboratory are working to develop engines optimized to run on JP-8 for use in military ground vehicles, stationary power generators, and small unmanned aerial vehicles. designed for Diesel Fuel (DF-2) operating with reduced performance with JP-8.

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J.D. Power and Associates study finds EPA emission-compliant heavy-duty engines yielding increase in engine problems, decline in satisfaction

Green Car Congress

Technology changes related to revised emissions standards for heavy-duty trucks are causing an increase in heavy-duty truck engine problems and a decrease in overall satisfaction with the powertrain, according to the JD Power and Associates 2012 US Heavy-Duty Truck Engine and Transmission Study. mpg in 2011. Overall Scores.

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Ricardo to support Clean Air Power’s first production-intent MicroPilot natural gas engine project

Green Car Congress

If successful, the program will then enter a second phase with the objective to bring a MicroPilot diesel-natural gas engine for the South East Asian and other markets to the start of production in 2017. This first phase of the program is targeted to commence in September 2014 and will last six months. —Clean Air Power CEO John Pettitt.

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VW introducing 1.8L EA888 Gen 3 engine in 2014 Jetta, Passat and Beetle; driving impressions

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EA888 TSI engine (red) delivers its peak 250 N·m of torque as early as 1,400 rpm, and maintains the strong and flat torque curve through 4,750 rpm—far outpacing the performance of the 5-cylinder 2.5-liter liter engine (blue) it replaces. Volkswagen first launched the EA888 engine generation in spring 2007 (Gen 1).

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New mixed-oxide catalysts shown as viable substitute for platinum catalysts for diesel exhaust aftertreatment

Green Car Congress

Under laboratory-simulated diesel exhaust conditions, this mixed-phase oxide material was superior to Pt in terms of cost, thermal durability, and catalytic activity for NO oxidation. Mullite is not only easier to produce than platinum, but also better at reducing pollution in diesel engines. Kyeongjae Cho. Wang et al.,

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