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Study finds engines emit exhaust nanoparticles even when not fueled during engine braking

Green Car Congress

Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The exhaust sample was taken from the exhaust manifold. The exhaust sample was taken from the exhaust manifold.

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2014 Sprinter van for US standard with new 2.1L diesel; new driver assistance features

Green Car Congress

2014 Sprinter. Since 2010, all Sprinters in the US have been powered by BlueTEC diesel engines, marking the first use of BlueTEC technology, with its selective catalytic reduction (SCR) exhaust aftertreatment system, in the commercial van market here. The two overhead camshafts actuate 16 intake and exhaust valves.

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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

2014-01-1190. 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. With D-EGR, one or more cylinders have their exhaust connected directly to the intake system.

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2014 Mercedes-Benz E-Class in the US will offer new 4-cylinder diesel; new 4-cylinder gasoline direct injection engine in other markets

Green Car Congress

Mercedes-Benz has introduced the updated 2014 E-Class Sedan and Wagon, featuring an array of new driver assistance systems in addition to new fuel efficient engines. The engine also sees the world’s first use of the stratified lean burn process in combination with exhaust-gas turbocharging and external high-pressure exhaust gas recirculation.

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Mercedes-AMG 2L, turbo four-cylinder pushes out up to 421 hp, 500 Nm

Green Car Congress

This means that the turbocharger and the exhaust manifold are now positioned at the rear, on the side of the firewall when viewed from behind. Furthermore, the new arrangement allows much improved air ducting with shorter distances and fewer diversions - both on the intake and exhaust side. Larger exhaust valves. Turbocharger.

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California ARB petitions US EPA for “Tier 5” stricter locomotive emissions standards

Green Car Congress

These new standards are to include standards for newly manufactured locomotives (which ARB refers to as “Tier 5”), and a new standard for Tier 4 locomotives upon remanufacture. he new Tier 3 PM emission standards went into effect for engine model years 2012-2014 for line haul locomotives and represented a minor step change.

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ICCT study concludes no technical barriers to use of higher blends of ethanol

Green Car Congress

Theoretically, cars operating on higher ethanol blends than the design point could emit greater concentrations of pollutants in exhaust gas. In the cylinder where combustion takes place, the fuel evaporates before it is burned, and this evaporation helps cool off the air/fuel mixture and exhaust gas. 25% E85 in 2022.

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