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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 common rail pump was externally lubricated by engine oil so that it can handle the low fuel lubricity. 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.

Engine 368
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Mercedes-Benz Trucks launching 3rd generation of OM 471 heavy-duty diesel

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For example, the geometry of the piston recess, the injection nozzle design and the parameters of the cylinder head relevant for gas exchange were subject to an extensive optimization process. Reduced friction losses and pressure control with low-viscosity oil. Newly-developed exhaust gas aftertreatment system.

Mercedes 435
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Empa and partners exploring DME as fuel with new heavy-duty test engine

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In cooperation with a major European supplier, a new oil-lubricated common-rail pump had therefore been developed. An electrically driven compressor for precise exhaust gas recirculation is also used. This is done via exhaust gas recirculation (EGR). —Patrik Soltic.

Engine 410
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Alphabet Energy closes $23.5M Series C; thermoelectric waste-heat-to-power for oil & gas and automotive

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Schlumberger, a new investor from the oil and gas industry, led the round with participation from GM Ventures and Osceola Capital Management, LLC. The new capital will be used to scale Alphabet Energy’s production for the oil and gas and automotive industries, both under intense regulatory pressure to curb emissions.

Waste 150
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MHI Develops Hybrid Turbocharger to Generate Electricity Utilizing Exhaust Gas from Marine Engines

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(MHI) has developed a generator-integrated hybrid turbocharger for marine propulsion diesel engines which utilizes engine exhaust gas not only to drive the turbocharger but also to generate electricity. The MET83MAG is capable of supplying all electric power necessary during normal sea going. Click to enlarge.

Exhaust 199
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ARPA-E announces $35M for technologies to reduce methane emissions

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ARPA-E announced up to $35 million for a new program focused on developing technologies to reduce methane emissions in the oil, gas, and coal industries: “Reducing Emissions of Methane Every Day of the Year” ( REMEDY ) ( DE-FOA-0002504 ). Coal mine ventilation air methane (VAM) exhausted from operating underground mines.

Emissions 186
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EV myths busted: Are electric vehicles safer than gas-powered cars?

Drive Electric

Electric vehicles have historically received a bad reputation for concerns around safety. Issues like thermal runaway, electrocution, and reports of inextinguishable fires plagued the pioneering electric vehicles. Useful terms: Internal Combustion Engine Vehicle (ICEV) and Electric Vehicle (EV). In fact, EVs have just 25.1