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Exhaust and aftertreatment on the Achates ULNOx heavy-duty opposed-piston diesel

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Earlier this month, Achates Power announced that its innovative 3-cylinder, 10.6L According to Fabien Redon, Achates Power’s CTO, the team made improvements to what Achates calls the Catalyst Light-Off operating mode, used while the SCR is not active. Source: Achates Power. Earlier post.)

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Crowley completes first US design for fully electric tug with autonomous technology

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Crowley Engineering Services has completed the design of the first fully electric US tugboat with autonomous technology. The design also supports fully customizable features to meet the vessel design requirements with the future in mind. The fully modular batteries allow for upgrades as electric technology changes.

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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 ). On current trends, the ratio may well continue to increase. A summary of the results is shown in the table and chart (log scale) below.

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AqualisBraemar LOC joins HYSEAS III hydrogen fuel-cell vessel project for vessel design

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CMAL) to partner in designing a hydrogen fuel-cell sea-going passenger and car ferry—a first for Europe. Partner Kongsberg Maritime designed the comprehensive testing regime to investigate whether the system would be suitable for handling and responding to demands that normally occur during normal sea-going operations.

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Achates Power continues development of opposed-piston technology for US Army vehicles

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Achates Power was recently awarded a $5-million contract from the US Army to expand the family of opposed-piston engines for military vehicles. Major, vice president, Achates Power. Achates Power is partnered with Cummins, Inc. The lubrication system is designed to enable remote or on-engine filtration systems.

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Octillion Power Systems enters US bus market to supply batteries for motorcoaches, city buses

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Octillion Power Systems, a global provider of advanced lithium-ion batteries, is providing battery packs for all-electric motorcoaches and city transit buses offered by ABC Companies and Lightning eMotors. Coaches will be powered by an all-electric powertrain from Lightning eMotors, a developer of zero-emission vehicles for commercial fleets.

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Motiv Engines introduces 2nd-generation split-cycle concept; MkII Clarke-Brayton heavy-duty engine being designed for LNG

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The thermodynamics of the engine are virtually identical to the company’s previous CCI (Compact Compression Ignition) design, as described in a 2013 SAE paper, but are implemented in a much more conventional way. It expands all the way to ambient pressure before the exhaust stroke. This enables a higher power density.

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