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

Green Car Congress

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

Green Car Congress

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) Earlier post.). l/100 km), and as such would not meet the GHG requirement of 28 mpg (8.4 Source: Cummins.

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New lightweight aluminum piston from Federal-Mogul enables further downsizing of gasoline engines

Green Car Congress

Federal-Mogul Corporation has developed a lightweight, high-strength aluminium piston that enables engine manufacturers to increase the power density and efficiency of boosted, direct injected gasoline engines. Cutaway of the Advanced Elastoval II piston. Click to enlarge. generation pistons.

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

Green Car Congress

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. Delphi 500+ bar GDi injector. —Walter Piock.

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Consumer Reports survey shows high fuel costs cause downsizing, less driving; 73% would consider alt fuel vehicle

Green Car Congress

While gasoline costs were the number one reason cited for wanting a more fuel-efficient vehicle (at 90%), more than half of respondents also had other reasons, including a desire to be more environmentally friendly (62%) and concern about the nation’s dependence on foreign oil (56%).

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

Green Car Congress

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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Tsinghua studies on alcohol-gasoline dual fuel engines show fuel efficiency and particle number benefits

Green Car Congress

Researchers at Tsinghua University in China are studying the effects of Dual-Fuel Spark Ignition (DFSI) combustion fueled with different alcohols and gasoline. Alternatively, in the second study, gasoline–alcohol DFSI is based on PFI of gasoline and DI of alcohols.). —Liu et al.

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