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Empa and partners exploring DME as fuel with new heavy-duty test engine

Green Car Congress

Empa, together with FPT Motorenforschung AG Arbon, Politechnico di Milano, lubricant manufacturer Motorex and other partners, is exporing the use of DME as a fuel for heavy-duty engines. A DME test engine has been in operation on a dynamometer in Empa’s Automotive Powertrains Technologies Laboratory. Image: Empa. —Patrik Soltic.

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Swiss team concludes that particulate filters should be mandatory for GDI engines

Green Car Congress

Based on a three-year study of toxic and environmentally relevant pollutants from gasoline direct injection (GDI) engines, Swiss researchers have concluded that some GDI engines emit just as many soot particles as unfiltered diesel cars did in the past. Further, the GDI particles carry numerous carcinogenic substances.

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Environment Canada study finds vehicle exhaust a significant source of isocyanic acid; suggests consideration of new emission standard

Green Car Congress

Researchers at Environment Canada have found that vehicle exhaust is a significant source of isocyanic acid (HNCO), a toxic gaseous acid that is a product of various forms of combustion and a potential health concern. Automobile exhaust is also a known source of inorganic acids such as nitric (HNO 3 ) and nitrous (HONO) acids.

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NREL review of E15 effects on MY2001 and later cars finds no meaningful differences with E10

Green Car Congress

A review of 43 studies of the effects of E15 (15% ethanol blends) on Model Year 2001 and newer cars by the National Renewable Energy Laboratory (NREL) found that the studies reviewed showed no meaningful differences between E15 and E10 in any performance category. Fuel system and engine durability.

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New 450hp Small Block V8 for 2014 Corvette features direct injection, cylinder deactivation, continuously variable valve timing

Green Car Congress

The new Corvette LT1 engine, the first of the Gen 5 family of Small Block engines, combines several advanced technologies, including direct injection, Active Fuel Management and continuously variable valve timing to support a new advanced combustion system with an 11.5:1 —Tadge Juechter, Corvette chief engineer.

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Cummins Westport announces MY 2018 natural gas engine line-up; near zero NOx

Green Car Congress

Cummins Westport (CWI) announced its model year 2018 dedicated natural gas engines for regional haul truck / tractor, vocational and transit, school bus, and refuse applications at the Alternative Clean Transportation (ACT) Expo in Long Beach, California. The letter “N” denotes engines that are fueled by natural gas. Earlier post.)

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BMW introducing new EfficientDynamics engine family; 3-, 4- and 6-cylinder, gasoline and diesel; first member a 1.5L, 3-cylinder TwinPower Turbo gasoline engine

Green Car Congress

While BMW is pushing toward the electrification of its vehicles in the long term, it still sees great potential for conventional engines. Building blocks for the new engine family include the TwinPower Turbo technology and VALVETRONIC. An essential feature of these engines however, is the VALVETRONIC throttle-free load control system.