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LiquidPiston awarded $9M contract from DEVCOM Army Research Laboratory for compact efficient heavy-fueled rotary engine program

Green Car Congress

LiquidPiston announced a $9-million award from the US Army to design, build and demonstrate an advanced, heavy-fueled combustion engine that uses up to 30% less fuel than comparable gasoline-powered engines in the same power class and reduces size and weight by up to 10x over diesel engines with comparable power output.

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

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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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Ricardo, Achates Power developing next-gen OP GCI engines for LDVs

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Ricardo is working in collaboration with Achates Power to develop the next generation of opposed-piston (OP) gasoline compression ignition (GCI) engines for light duty vehicles in a multi-phased project (BERYL), funded by the US Department of Energy (DOE) Advanced Research Projects Agency-Energy (ARPA-E). Earlier post.)

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

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liter Opposed-Piston Gasoline Compression Ignition (OPGCI) engine. The OP engine produces 270 hp and 480 lb-ft (651 N·m). The Achates Power Opposed-Piston (OP) Engine is engineered to achieve superior thermal efficiency by virtue of its lower heat losses, improved combustion, and reduced pumping losses.

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Lexus unveils hydrogen-engined ROV concept

Green Car Congress

Lexus revealed a new ROV (Recreational Off-highway Vehicle) Concept, a hydrogen-engined vehicle offering near zero-emissions driving combined with extreme off-road capability. Lexus’ new hydrogen engine produces close to zero emissions, with a negligible amount of engine oil burned during driving.

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Aramco and Stellantis collaboration indicates eFuel compatibility with 24 European engine families produced since 2014 (Euro 6)

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Stellantis has concluded that 24 engine families in European vehicles sold since 2014, representing 28 million vehicles on the road, are ready to use advanced drop-in eFuel without any powertrain modification, following months of testing at its technical centers across Europe.

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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% Further, there is increasing interest among stakeholders in exploring the benefits of higher octane fuels that would lead to higher compression ratios which would lead to more efficient engines and reduced fuel consumption.