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Refreshed 2014 Toyota Yaris features revamped 1.0L engine with switching between Atkinson and Otto cycles; new hybrid

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2014 Yaris Hybrid. Toyota’s refreshed 2014 Yaris for Europe offers a choice of four powertrains, including a thoroughly reworked 3-cylinder 1.0 gasoline unit that is the first member of a new family of 14 highly efficient engines to be launched by 2015. liter gasoline engine and 1.4-liter Click to enlarge. lbs) lighter.

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New GM EcoTec3 engine family for 2014 Silverado and Sierra pickups; direct injection, cylinder deactivation and CVVT

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The newly unveiled 2014 Chevrolet Silverado 1500 and GMC Sierra 1500 pickup trucks will deliver more power, more torque and improved fuel efficiency, partly due to a trio of all-new EcoTec3 engines designed specifically for the needs of full-size truck customers. The new engine family includes a 4.3L Click to enlarge.

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CFM International completes design freeze for LEAP-1B engine; 15% improvement in specific fuel consumption

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CFM International has completed design freeze for the advanced LEAP-1B engine, the exclusive powerplant for the Boeing 737 MAX, paving the way for the first full engine to test in mid-2014. This milestone is effectively the point at which the engine configuration is set, or frozen.

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Toyota Central R&D developing free-piston engine linear generator; envisioning multi-FPEG units for electric drive vehicles

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is developing a prototype 10 kW Free Piston Engine Linear Generator (FPEG) featuring a thin and compact build, high efficiency and high fuel flexibility. The team presented two papers on the state of their work at the recent SAE 2014 World Congress in Detroit. A team at Toyota Central R&D Labs Inc. Cartoon of the W-shape piston.

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

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Further, there is increasing interest among stakeholders in exploring the benefits of higher octane fuels that would lead to higher compression ratios which would lead to more efficient engines and reduced fuel consumption. One significant trend is engine downsizing coupled with turbocharging. Source: U.S. Click to enlarge.

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Environment Canada/MECA team assesses black carbon emissions in GDI engine exhaust; evaluation of prototype gasoline particulate filter

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Although gasoline direct injection engines (GDI) are a favorable technology for reducing fuel consumption and greenhouse gas emissions, recent studies have shown that GDI vehicles could emit more PM than traditional PFI (gasoline port fuel injection) vehicles as well as heavy-duty diesel trucks equipped with diesel particulate filters.

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LiquidPiston unveils 70cc rotary gasoline engine prototype embodying HEHC; power dense, low-vibration

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LiquidPiston X1 engine features three separate combustion chambers creating 3 power strokes per revolution for high power density. Dr. Alexander Shkolnik, President and Co-Founder of LiquidPiston, is presenting the engine in a paper at the SAE International/JSAE 2014 Small Engine Technology?Conference Source: LPI.

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