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Porsche unveils 2017 version of 919 Hybrid Le Mans prototype

Green Car Congress

The 2017 model of the Porsche 919 Hybrid deploys a range of new innovations, particularly in the vehicle’s aerodynamics, the chassis and the combustion engine. Team Principal Andreas Seidl, who continues to serve as acting technical director, said that for the 2017 season, 60 to 70 percent of the vehicle is newly developed.

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NREL announces $18M investment in 9 new projects to advance medium- and heavy-duty natural gas vehicle technologies

Green Car Congress

Projects selected through this solicitation will complement DOE’s Vehicle Technologies Office (VTO) research started in FY 2017. will address natural gas engine emissions and efficiency improvements by developing a natural gas specific combustion design utilizing optimized in-cylinder charge motion and cooled exhaust gas recirculation (EGR).

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Porsche secures third straight FIA WEC Manufacturers’ World Championship title with the 919 Hybrid

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Season 2017 Porsche LMP team. Especially in regard to battery technology, downsizing, efficiency improvements with the turbocharged petrol engine and, in particular, for energy recovery systems. For 2016, many details of the 919 got a makeover, but not a totally new design. Click to enlarge. Earlier post.).

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New Federal-Mogul Powertrain high thermal conductivity seats and guides keep engine valves cooler; improved combustion, lower emissions

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Federal-Mogul Powertrain will debut new materials for valve seats and guides with improved thermal conductivity at the 2017 IAA Show in Frankfurt, Germany next month. For exhaust valve head alloys, every 20°C reduction in temperature negates the need for an upgrade to the next, more expensive alloy specification.

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Bosch leading Direct4Gas consortium to develop direct injection for monovalent natural gas engines

Green Car Congress

Today’s CNG vehicles are generally bivalent, running on gasoline and CNG with engines designed for gasoline direct injection. The very high octane rating and resulting high resistance to knock is promising for small, supercharged, downsized SI engines. The project started in January 2015 and will run until the end of 2017.

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

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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.). for the D13.

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Ford study suggests GDI engines can meet coming California and US PM emissions standards over 150k miles; more work to be done

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The EU has already set a standard for 6 × 10 12 number/km limits between 2014 and 2017, tightening to 6 × 10 11 number/km.). Homogeneous GDI provides fuel efficiency benefits from charge air cooling, more facile turbocharging, and the downsizing that these permit. and fuel properties. —Maricq et al. Credit: ACS, Maricq et al.

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