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Study finds diesel oxidation catalyst eliminates mutagenicity of diesel exhaust in gas phase

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A team of researchers in Germany has found that the mutagenicity of diesel engine exhaust (DEE) is eliminated in the gas phase by a Diesel Oxidation Catalyst (DOC), but only slightly reduced in the particle phase. Further investigations showed that condensates of the gas phase are likewise mutagenic.

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Volkswagen 2.0 TDI diesel for Euro 6d; SCR twin-dosing

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With SCR twin dosing technology in the exhaust gas system, the diesel unit now undercuts the Euro 6d emission standard limits while also running quietly and smoothly, according to the company. The four-cylinder TDI engine with the internal designation EA 288 made its debut in 2012. As previously, the 2.0 This has a volume of 3.4

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New Honda 2012 Civic Natural Gas goes on sale 18 October at Honda dealers in 35 states, up from 4

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2012 Honda Civic Natural Gas. To support growing consumer interest in alternative-fuel vehicles, American Honda is expanding its network of US dealers which are qualified to sell and service the Civic Natural Gas to retail customers—expanding sales to 200 dealers in 35 states. Click to enlarge. Click to enlarge.

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Fiat debuts first application of turbocharged 1.4-L MultiAir in 2012 Fiat 500 Abarth

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At the Los Angeles Auto Show, Fiat unveiled the 2012 Fiat 500 Abarth—a performance variant of the 500—featuring the first application of the new 1.4-liter The 2012 Fiat 500 Abarth is also fitted with a heavy-duty five-speed manual transmission with Torque Transfer Control (TTC) system. liter MultiAir Turbo. liter engine.

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First online measurement of gaseous sulfuric acid in diesel exhaust helps clarify role in formation of nucleation particles

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Researchers in Germany and Finland report the first online measurement of gaseous sulfuric acid (GSA) in the exhaust gas of a modern heavy-duty diesel engine in an effort to quantify the role of low-vapor-pressure gases in the formation of nucleation particles (NUP). of hydrocarbons) significantly. of hydrocarbons) significantly.

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Volkswagen to implement cylinder deactivation in 4-cylinder 1.4 TSI engines in 2012

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liter TSI turbocharged, direct-injection engine beginning in 2012. Afterwards, the system closes the intake and exhaust valves of cylinders 2 and 3; engine ignition only occurs once per crankshaft revolution. Volkswagen utilizes information from the gas pedal sensor to detect the driver’s mode of driving. Click to enlarge.

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Cummins Westport begins development on new mid-range natural gas engine; production by 2015

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liter natural gas engine designed to meet the increasing demand for on-highway vehicles powered by natural gas. diesel engine and will use Cummins Westport’s proven spark-ignited, stoichiometric cooled exhaust gas recirculation (SEGR) technology. G will round out our family of high performance natural gas engines.

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