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Exhaust and aftertreatment on the Achates ULNOx heavy-duty opposed-piston diesel

Green Car Congress

opposed-piston (OP) heavy-duty diesel engine achieved Ultralow NO x (ULNO x ) performance results. In that mode, Achates was able to reduce NO x below the original target and increase exhaust temperatures further. Three features of the new system design have the potential to substantially reduce compliance risk and cost.

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WHO IARC classifies diesel exhaust as carcinogenic to humans (Group 1)

Green Car Congress

After a week-long meeting of an expert working group, the International Agency for Research on Cancer (IARC), which is part of the World Health Organization (WHO), classified diesel engine exhaust (DEE) as carcinogenic to humans (Group 1), based on sufficient evidence that exposure is associated with an increased risk for lung cancer.

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

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TDI diesel for Euro 6d; SCR twin-dosing. Volkswagen continues to refine its most important diesel engine, the 2.0-liter 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.

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New Emissions Analytics study suggests pollution from tire wear now 1,850 times worse than exhaust emissions

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In early 2020, UK-based independent testing firm Emissions Analytics published a study claiming that tire particulate wear emissions were 1,000 times worse than exhaust emissions ( earlier post ). x 10 11 #/km for diesels. A summary of the results is shown in the table and chart (log scale) below.

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ORNL team achieves diesel-like efficiency with SI engine

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A team at Oak Ridge National Laboratory (ORNL) has achieved diesel-like efficiency in a single-cylinder spark-ignition (SI) research engine while maintaining compatibility with stoichiometric 3-way catalyst (TWC) systems. The unique high stroke-to-bore engine design (1.5:1) The unique high stroke-to-bore engine design (1.5:1)

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MAN Engines showcasing D3876 diesel engine for EU Stage V locomotives without exhaust after-treatment systems

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One of its outstanding features is the in-line six, which meets the EU Stage V emission standard for locomotives without the need for an exhaust after-treatment system (EATS). The MAN D3876 LE63x meets EU Stage V for locomotives without the need for exhaust after-treatment systems.

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Mercedes-Benz Trucks launching 3rd generation of OM 471 heavy-duty diesel

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Mercedes-Benz Trucks is introducing the third generation of its OM 471 heavy-duty diesel engine this year; the engine will deliver increased fuel efficiency and compliance with the strictest emissions standards such as Euro VIe. Newly-developed exhaust gas aftertreatment system. Warm side (top) and cold side (bottom) of OM 471 engine.

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