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EIA: trends in downsized engine design leading to increased demand for higher-octane gasoline

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in August and September 2015—the highest share in more than a decade, according to data from the US Energy Information Administration (EIA). Energy Information Administration, Prime Supplier Sales Report. One significant trend is engine downsizing coupled with turbocharging. Earlier post , earlier post , earlier post.).

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Cummins progressing with lightweight downsized T2B2 diesel for pickup; 40% improvement in fuel economy over gasoline V8

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Exhaust system configuration. SCR coated on filter (SCR-F) allows for close coupling of an SCR (selective catalytic reduction) function for fast light off. Earlier post.). In addition, the cold start catalyst also exhibits excellent CO, HC, and NO oxidation activity under normal lean conditions.

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Simulation study suggests ORC waste heat recovery system could deliver potential 7% improvement in fuel consumption in a PHEV on highway

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Starting from a energy-based powertrain simulation model validated on experimental data from the PHEV, the researchers conducted a first- and second-law analysis to identify the potential for engine waste heat recovery, considering a variety of driving cycles and assuming the vehicle operating in charge-sustaining (HEV) mode.

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Ricardo to display functional integration prototype of ADEPT 48V “intelligent electrification” diesel

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Based on a Ford Focus, this ADEPT prototype incorporates a 48V electrical architecture, a SpeedStart 10kW (later to be upgraded to 12.5kW) belt integrated starter generator and TIGERS turbine integrated exhaust gas energy recovery system, both switched reluctance machines supplied by CPT, and an advanced lead carbon battery pack provided by EALABC.

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Ricardo’s “deep” Miller cycle concept: Magma

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In its new report on downsized and boosted gasoline engine technologies ( earlier post ) the ICCT highlighted Ricardo’s work on an “extreme” Miller cycle concept with high (13:1) compression ratio (CR) and central direct injection in a downsized boosted engine. A long exhaust stroke then extracts maximum efficiency. Resources.

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ICCT: decline in diesel sales will have negligible impact on attainment of European CO2 emission standards

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The current decline is ales of diesel light duty vehicle in Europe does not put EU CO 2 targets out of reach of automakers, according to a new analysis by the International Council on Clean Transportation (ICCT). For instance, hybrid electric vehicles and diesel cars in the small (e.g., Renault Clio) and lower medium (e.g.,

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Downsized 4.0 TFSI for Audi S8 cuts fuel consumption 23% compared to predecessor; cylinder deactivation and start-stop

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Weighing 220 kilograms (485 lb) including all key add-on parts, the V8 is comparatively light. Audi’s principle of downsizing: “ Forced induction replaces displacement ” One twin-scroll turbocharger per cylinder bank compresses the fresh air. Even at 1,000 rpm, the 4.0

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