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Optimized heavy-duty CI engine fueled with DME delivers diesel performance, significantly reduces engine-out emissions

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The engine was also equipped with an electrically driven volumetric pump in the exhaust gas recirculation (EGR) path which gives the freedom to set any desired EGR rate, independently from the pressure ratios across the turbocharger. The common rail pump was externally lubricated by engine oil so that it can handle the low fuel lubricity.

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SwRI CAT-DEF reduces heavy-duty diesel emissions to meet CARB 2027 NOx requirements

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CAT-DEF—Catalyzed Diesel Exhaust Fluid—is an SwRI-developed catalyst- and surfactant-modified diesel exhaust fluid (DEF) solution. The internally funded advancement successfully reduced heavy-duty diesel engine nitrogen oxide (NO x ) emissions to meet the California Air Resources Board (CARB) 2027 standards.

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Study estimates 6% of lung cancer deaths in US and UK attributable to diesel exhaust

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In 2012, 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). Our estimates suggest that stringent occupational and environmental standards for DEE should be set. Diesel Emissions Health'

Exhaust 353
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SwRI engineers develop near-zero emissions diesel engine technology; 90% reduction of NOx

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Southwest Research Institute engineers have developed the next generation of clean diesel engine technology to reduce hazardous nitrogen oxides (NO x ) and carbon dioxide emissions while minimizing fuel consumption. g/hp-hr NO x emissions). Making a relevant impact on pollutants requires a whole system approach. —Bryan Zavala.

Engine 545
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ClearFlame Engine Technologies completes on-road demo of Class 8 truck with Cummins X15 running E98 ethanol

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ClearFlame Engine Technologies, a a startup developing net-zero engine technology ( earlier post ), successfully completed an on-road demonstration of its proprietary technology that enables a heavy-duty truck diesel engine to operate on low-carbon and carbon-negative fuels, including 100% renewable plant-based fuels.

Engine 334
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UBC study associates exposure to diesel exhaust with changes in DNA methylation

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In an open access study published in the journal Particle and Fibre Toxicology , a team from the University of British Columbia investigated the short-term effects of diesel exhaust inhalation on DNA methylation levels at CpG sites across the genome in circulating blood in asthmatics. Diesel Emissions Health'

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UK consortium developing biogas and hydrogen dual-fuel Class 66 locomotive

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The Freightliner Class 66 locomotives are 3300hp diesel electric mainline units introduced in 1998. This is the first time that this hydrogen dual-fuel technology, which is used in the road industry, will be applied to the rail freight sector on such a widely used class of locomotive. Maximum speed is 75 mph.

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