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Achates near-zero heavy-duty opposed-piston diesel enters fleet service; compliant with 2027 NOx levels

Green Car Congress

The cleaner engine is able to deliver ultra-low NO x by managing exhaust gas temperatures to ensure rapid catalyst light-off and by maintaining aftertreatment temperatures at optimum operating conditions in all driving conditions.

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The Importance of Electrifying Municipal Vehicles

Clean Fleet Report

Improving Air Quality Air pollution has been linked to numerous health conditions that lead to increased medical costs. Electric vehicles with the greatest public health benefits include school buses and other forms of public transport since people usually breathe in exhaust fumes from conventionally powered vehicles while waiting to board.

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Commercial Shipping Emits Almost Half As Much Particulate Pollution as Total Released by World’s Cars

Green Car Congress

Globally, commercial ships emit almost half as much particulate matter pollutants into the air as the total amount released by the world’s cars, according to a new study led by NOAA and the University of Colorado at Boulder. Ship pollutants affect local air quality and the health of people living along coastlines. Earlier post.).

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Toyota, Hino and Showa Shell to Test FT Diesel and Renewable Diesel Blend in Hybrid Transit Bus

Green Car Congress

(SSSKK) plan to begin trials on 1 July of a diesel-electric hybrid transit bus fueled by a mixture of Fischer-Tropsch diesel (FTD)—specifically, Shell’s gas-to-liquids (GTL) fuel—and hydrogenated vegetable oil (HVO), a type of renewable diesel offering similar characteristics to FTD. Earlier post.)

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Small-displacement two-stroke H2 engine could address performance and emissions cost-effectively for recreational market; potential for Asian motor vehicle fleet

Green Car Congress

It, or a scaled-up version, could also provide a solution for the Asian motor vehicle fleet, in which two-stroke engine vehicles constitute a major share—and contribute significantly to air pollution. Everything else—pistons, porting and crankcase, bearings, exhaust, etc.—were Lubrication proved to be an issue.

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Study finds biodiesel use in HD trucks in Canada will result in very minimal changes in air quality and health benefits

Green Car Congress

vegetable oils and animal fats)—will likely be used to meet a large fraction of the renewable content requirement, the authors note. However, the impact of these changes in HDDV exhaust emissions on ambient atmospheric pollutant concentrations and, more importantly, on human health outcomes across Canada have not been evaluated.

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Hydrogen Opposed Piston Engine Working Group formed

Green Car Congress

OP engines utilize direct injection after ports closure to avoid the risk of fuel short circuiting out the exhaust. Created with the mission to build cleaner, more efficient engines, Achates Power has an experienced staff of engineers and scientists working with leading engine manufacturers to bring the opposed piston engine to market.

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