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Petrobras launches new 50 ppm ultra-low-sulfur gasoline throughout Brazil

Green Car Congress

Petrobras launched new regular and premium ultra-low-sulfur gasoline throughout Brazil on 1 January 2014, entirely replacing the previous regular and premium gasoline. California, Europe, Japan, South Korea, and several other countries have gasoline sulfur limits of 10 ppm. Earlier post.). Click to enlarge. billion (US$8.7

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SwRI D-EGR gasoline demo vehicle delivers diesel efficiency at lower cost; potential for LEV III/Tier 3 emissions

Green Car Congress

Southwest Research Institute (SwRI) announced preliminary test results of its Dedicated-Exhaust Gas Recirculation (D-EGR) demonstration vehicle ( earlier post ) at the SAE 2014 World Congress in Detroit. The D-EGR demonstrator is a converted 2012 Buick Regal with a 2.0-liter liter gasoline direct injection engine.

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A Bamboo Carbon Filter for Diesels Could Reduce Emissions

Cars That Think

Although the pollutant emissions of a diesel engine are less than those of a gasoline one, it still emits carcinogens, nitrous oxides, and soot. To reduce emissions, diesel vehicles use filters that catch exhaust particles and other contaminants. Older models don’t even have the emission-control features that newer ones do.

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Audi introduces new CNG A3 Sportback

Green Car Congress

Its turbocharger with variable turbine geometry makes optimal use of the exhaust gas energy for early and harmonious torque development. The cylinder head, injection system, turbocharger and catalytic converter were modified accordingly for the CNG engine. The A3 Sportback 30 g-tron 1.5 lb-ft) of torque between 1,400 and 4,000 rpm.

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NR Canada seeking commercialization partner for methane oxidation catalyst

Green Car Congress

The ideal licensee would be primarily engaged in manufacturing engine parts and systems, such as catalytic converters and engine exhaust control systems, for the on-road vehicle, off-road vehicle and stationary power sectors. However, lean burn natural gas engines suffer from high levels of unburned methane in the exhaust.

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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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Mazdas new SKYACTIV gasoline and diesel engines are steps on the road to its Ideal Engine; focus on compression ratio

Green Car Congress

However, while Mazda plans to offer hybrid vehicles in the medium-term, its engineers are pushing hard to increase the efficiencies of both the gasoline and diesel platforms, moving toward what they call “the ideal Internal Combustion Engine.” Energy balance in an internal combustion engine. air-to-fuel ratio. combustion duration.

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