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New Emissions Analytics study suggests pollution from tire wear now 1,850 times worse than exhaust emissions

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In early 2020, UK-based independent testing firm Emissions Analytics published a study claiming that tire particulate wear emissions were 1,000 times worse than exhaust emissions ( earlier post ). As a result, distance-specific mass and number emissions can be derived, which can then be compared to equivalent tire metrics.

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International automotive researchers emphasize the importance of continued development of the internal combustion engine

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Thirty-seven globally prominent scientists representing the International Journal of Engine Research have published an open-access editorial addressing the future of the Internal Combustion Engine, and stressing the importance for continued development of more efficient and even lower-emitting technologies. —Reitz et al.

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Toyota commissions Yamaha to develop hydrogen-fueled 5.0L V8; follow-on from Nov 2021 announcement

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liter V8 engine for automobiles that is fueled entirely by hydrogen. In Japan, Toyota and other automotive-related companies are about to begin a collaborative effort to expand the range of fuel options for internal combustion engines. Toyota Motor Corporation has commissioned Yamaha Motor to develop a 5.0-liter Earlier post.).

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Korean team develops 2L-class direct-injection hydrogen-fueled engine

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The amount of air that flows into the combustion chamber declines because of the space taken up by the gaseous hydrogen fuel, leading to lower fuel efficiency and poorer engine performance due to the backfire of the hydrogen fuel and air. 2022.04.274

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SwRI engineers help develop post-refinery diesel treatment that overcomes soot/NOx tradeoff for cleaner burning fuel

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Southwest Research Institute (SwRI) is helping a client develop a simple post-refinery treatment process that reduces exhaust emissions from diesel engines by overcoming the soot/nitrogen oxides (NO x ) reduction trade-off that has plagued engine researchers for decades.

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Improved liquid hydrogen-powered Corolla and GR86 (carbon-neutral fuel) to participate in Super Taikyu at Autopolis

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The hydrogen-powered Corolla, mobile liquid hydrogen stations, and carbon neutral fuel have evolved in the two months since the Round 2 NAPAC Fuji SUPER TEC 24 Hours Race from 26-28 May. In addition, pump stress has been reduced by optimizing fuel pressure, leading to a weight reduction for the pump drive motor battery.

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

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Empa, together with FPT Motorenforschung AG Arbon, Politechnico di Milano, lubricant manufacturer Motorex and other partners, is exporing the use of DME as a fuel for heavy-duty engines. An electrically driven compressor for precise exhaust gas recirculation is also used. This is done via exhaust gas recirculation (EGR).

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