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Cummins unveils 15L hydrogen engine

Green Car Congress

At the recent ACT Expo in Long Beach, California, Cummins debuted its 15-liter hydrogen engine. This engine is built on Cummins’ new fuel-agnostic platform, where below the head gasket each fuel type’s engine has largely similar components, and above the head gasket, each has different components for different fuel types.

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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. SwRI developed the technology for the California Air Resources Board (CARB). g/hp-hr NO x emissions).

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MAN D3876 engine ensures high thrust and future-proofing in PistenBully 800; engine basis for possible H2 variant

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MAN Engines is now equipping the PistenBully 800 from Kässbohrer Geländefahrzeug AG with its MAN D3876 engine. The basis for the delivery of the in-line six-cylinder engine was the further development and adaptation of the MAN D3876 to the extreme working environment of the new high-performance snow groomer from Laupheim.

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ORNL researchers 3D print pistons from aluminum alloy for testing in full-size engine

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Materials that can perform under high pressure, high temperature environments are needed for automotive, aerospace, defense and space applications. Researchers printed pistons made of the alloy for deployment inside of a full-scale engine. The pistons will undergo additional testing inside of a four-cylinder, turbocharged engine.

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California Assemblymembers introduce bill phasing out gasoline-fueled small off-road engines

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California Assemblymembers Marc Berman (D-Menlo Park) and Lorena Gonzalez (D-San Diego) introduced legislation to phase out the sale of new gas-powered small off-road engines (SORE), which are primarily used in lawn and garden equipment, including leaf blowers, lawn mowers, and other outdoor power equipment. —Assemblymember Marc Berman.

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Researchers investigate super-knock in SI engines running on hydrogen/methane blends

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Using blends of hydrogen and methane as fuels in internal combustion engines is a promising strategy for reducing carbon dioxide emissions. However, the undesirable phenomenon of super-knock, which can severely and instantaneously damage an SI engine, limits its widespread adoption. 2022.112277.

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Researchers capture first images of CO2 emissions from commercial aircraft engine using chemical species tomography

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Researchers have used a novel near-infrared light imaging technique to capture the first cross-sectional images of carbon dioxide in the exhaust plume of a commercial jet engine. To image such a large area, the researchers used a 7m-diameter optical mounting frame (red) located just 3 m from the exit nozzle of the engine.