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EPA proposes stringent new emissions standards for light-, medium-, heavy-duty vehicles for MY 2027 and beyond

Green Car Congress

The US Environmental Protection Agency (EPA) announced two new proposed federal emissions standards spanning light-, medium- and heavy-duty vehicles for model year 2027 and beyond. The light-duty vehicle category includes passenger cars and light trucks consistent with previous EPA criteria pollutant and GHG rules.

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Aramco researchers co-optimize piston bowl and injector for light-duty GCI engine using CFD and ML

Green Car Congress

Researchers in the Transport Technologies Division of Saudi Aramco have used using computational fluid dynamics (CFD) and advanced machine learning (ML) techniques to co-optimize the piston bowl and the injector design of a gasoline compression ignition (GCI) engine. At high-load, larger and fewer number nozzles are recommended.

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NREL study probes emissions impact of butanol-gasoline blends in light-duty vehicles

Green Car Congress

Results of a study led by a team from the National Renewable Energy Laboratory on the impact of butanol-gasoline blends on light-duty vehicle emissions suggest that widespread deployment of n-butanol or i-butanol in the gasoline pool could result in changes to the estimated emissions of alcohols and carbonyls in the emissions inventory.

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Eni and FCA develop A20: 15% methanol, 5% ethanol high-octane gasoline blend

Green Car Congress

By harnessing its low carbon content, bio component and high octane number (RON 100), the new alternative fuel emits up to 3% less in CO 2 exhaust emissions quantified using the new Worldwide Harmonized Light Vehicle Test Procedures (WLTP).

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EIA: trends in downsized engine design leading to increased demand for higher-octane gasoline

Green Car Congress

Since 2013, the share of premium gasoline in total motor gasoline sales in the US has steadily increased to 11.3% Therefore, turbocharged engines typically require more design and operational features to prevent engine knock than naturally aspirated engines. of new gasoline-fueled LDV sales. of the market.

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Achates showcases 2.7L, 3-cylinder opposed piston gasoline compression ignition engine in F-150; estimated 37 mpg combined

Green Car Congress

liter Opposed-Piston Gasoline Compression Ignition (OPGCI) engine. We chose to demonstrate our ultra-clean, ultra-efficient OP Engine in a full-size light-duty pickup truck because of the significant need and opportunity for improvement in this segment. Earlier post.). —David Johnson, president and CEO, Achates Power.

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Acura Debuts Performance Electric Vision Design Concept

The Truth About Cars

Fortunately, the company had something in its back pocket with the “Performance Electric Vision Design” concept it teased in tandem with the all-electric ZDX.& & For now, all the manufacturer is willing to do is call it a design concept for its “electrified future.” & It may look like an LMP racer.

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