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New mixed-oxide catalysts shown as viable substitute for platinum catalysts for diesel exhaust aftertreatment

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NO conversion versus ramp-up and ramp-down temperatures for MnCe-7:1 (?), Under laboratory-simulated diesel exhaust conditions, this mixed-phase oxide material was superior to Pt in terms of cost, thermal durability, and catalytic activity for NO oxidation. SmMn 2 O 5 (?), GdSrCeMn 7 O 14.83 (?), and Pt (?). Click to enlarge.

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EPA updates rules to ease commercialization of alternative fuel conversion systems

Green Car Congress

The US Environmental Protection Agency (EPA) has updated rules making it easier for manufacturers to sell fuel conversion systems—i.e., The updated final rule covers alternative fuel conversion of light-duty vehicles and heavy-duty highway vehicles and engines. Exhaust, Evap, and OBD testing. Overview of Program Elements.

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EPA Proposes to Streamline Approval Process for Fuel Conversion Systems

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The US Environmental Protection Agency (EPA) is proposing to make it easier for manufacturers to gain approval to sell fuel conversion systems. The proposed rule would cover conversions of light-duty vehicles and heavy-duty highway vehicles and engines, and would apply to all clean alternative fuels. Exhaust, Evap, and OBD testing 2.

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SwRI develops D-EGR demonstrator highlighting fuel-efficient, cost-effective engine; 10% and above fuel economy improvements

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D-EGR is an engine and control concept that combines fuel reforming to produce hydrogen with high levels of exhaust gas recirculation (EGR) to achieve very high levels of thermal efficiency. liter engine running as a full D-EGR engine from idle to full load, delivering more than 42% brake thermal efficiency with ultra-low exhaust emissions.

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ARB researchers evaluate in-use heavy-duty NOx aftertreatment systems, find elevated levels during certain lower-temperature operations

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One of the trucks was equipped with exhaust gas recirculation (EGR); three were equipped with EGR and a selective catalytic reduction (SCR) device. EGRs were primarily introduced for on-road heavy-duty diesel engines over a decade ago to meet the tighter MY 2004 NO x standard (2 g/bhp-hr). high purity urea and 67.5%

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Achates Power developing light-duty two-stroke opposed-piston diesel engine: the OP4

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Founded in 2004, Achates Power is designing and developing engines based on a two-stroke, opposed-piston, compression-ignition technology. Exhaust temperature of the OP4 was 410 °C, compared to 246 °C for the baseline; the rate of exhaust enthalpy for the OP4 was 9.0 Source: Achates Power. Click to enlarge. Background.

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European Commission fines truck producers record €2.93B for colluding to pass on emission compliance costs

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Between 1997 and 2004, meetings were held at senior manager level, sometimes at the margins of trade fairs or other events. This was complemented by phone conversations. From 2004 onwards, the cartel was organized via the truck producers’ German subsidiaries, with participants generally exchanging information electronically.

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