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

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Since 2013, the share of premium gasoline in total motor gasoline sales in the US has steadily increased to 11.3% One significant trend is engine downsizing coupled with turbocharging. Turbochargers work by using a turbine driven off the exhaust gas to pressurize the intake air. of new gasoline-fueled LDV sales.

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New Delphi Technologies 500+ bar GDi system cuts gasoline particulate emissions by up to 50%, reduces fuel consumption

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Reducing the number of exhaust gas particulates, including those smaller than 23 nm, will help manufacturers meet increasingly stringent future global emissions standards. —Walter Piock, chief engineer, Gasoline Systems, Delphi Technologies. Delphi 500+ bar GDi pump. —Walter Piock.

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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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Cost of the new engine relative to gasoline baseline. The approach that Cummins and partners have taken features: Replacing the aluminium V8 gasoline engine and emission control system with smaller diesel (2.8-liter) Exhaust system configuration. Earlier post.). l/100 km) for a vehicle of that size. Source: Cummins.

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DENSO Develops Exhaust Gas Temperature Sensor With Improved Temperature Detection Accuracy

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DENSO Corporation has improved the temperature detection accuracy of its newly developed diesel exhaust temperature sensor. To improve the sensor’s temperature accuracy, DENSO increased the probe length to almost twice that of the conventional product and extended the sensing tip into the exhaust pipe. Click to enlarge.

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DENSO develops compact EGR cooler for gasoline engines; applied in Prius c

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DENSO Corporation has developed its first EGR cooler for gasoline engines. The newly developed EGR (exhaust gas recirculation) cooler is 30% smaller than the smallest one currently available on the market, while offering equal performance. DENSO EGR cooler. Click to enlarge. Click to enlarge.

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PSA to commercialize SwRI-developed Dedicated-EGR technology in high-efficiency gasoline engines by 2018

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During its recent Innovation Day presentations ( earlier post ), PSA Peugeot Citroën announced that it will commercialize high-efficiency gasoline engines featuring dedicated exhaust gas recirculation (D-EGR), derived from a collaborative program with SwRI in the US. Click to enlarge. PSA has filed for two patents on its work.

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Bosch leading Direct4Gas consortium to develop direct injection for monovalent natural gas engines

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Bosch is leading a consortium in a German government-funded project to develop a direct injection system for monovalent natural gas engines—i.e., Today’s CNG vehicles are generally bivalent, running on gasoline and CNG with engines designed for gasoline direct injection. engines that run exclusively on CNG.

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