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

Green Car Congress

liter, heavy-duty opposed-piston, three-cylinder diesel engine it developed in a project funded by the California Air Resources Board (CARB) and several partners ( earlier post ) has entered fleet service with WALMART Corporation in a Peterbilt 579 tractor. Achates Power announced that the 10.6-liter,

Diesel 468
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Study links deterioration of concrete and asphalt to trace quantities of organic matter; diesel exhaust, windshield washer fluids

Green Car Congress

The scientists showed that there are a number of organic molecules from diverse sources present in modern concrete structures and asphalt pavements: phthalates, diesel exhaust particulates, surfactants, and windshield washer fluids.

Exhaust 391
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Octillion Power Systems enters US bus market to supply batteries for motorcoaches, city buses

Green Car Congress

With its entry into the motorcoach and bus markets, Octillion’s batteries will be used to repower popular models including Van Hool T2145e highline touring coaches and TD high-capacity double-deck coaches to 100% battery-electric power. Electric buses also offer the passenger less vibration, less noise, and zero exhaust.

Supplies 418
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WinGD and HSD Engine collaborate to deliver methanol-fueled two-stroke engines

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Under the JDP, WinGD will oversee combustion and injection research, exhaust aftertreatment requirements and engine concept design. HSD Engine will provide support on cost-effective manufacturing and assembly, provide engine testing capabilities and deliver fuel supply and exhaust aftertreatment systems.

Engine 370
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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.

Cleaner 321
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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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In addition to the MAN D4276 on the same platform, the MAN D3876 is the most powerful in-line six-cylinder engine in the portfolio of engine manufacturer MAN Engines. This makes the system one of the systems with the highest pressures on the market and guarantees optimum fuel atomization quality. With a displacement of 15.3

Engine 293
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Westport and Scania preliminary testing shows H? HPDI delivers peak BTE of 51.5% at mid-load

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Westport’s HPDI fuel system technology enables heavy-duty trucks to operate on natural gas with the same power, torque, efficiency, and performance as diesel engines. Scania’s engine fulfils the strictest exhaust emission requirements with low fuel consumption and high torque. H2 HPDI operates the system with hydrogen. —David M.

Hydrogen 243