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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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Internal combustion engines have been significantly improving in the past decade, after the adoption of technologies such as Gasoline Direct Injection, mild electrification, downsizing and turbocharging. The OSU EcoCAR prototype vehicle features an extended-range electric architecture with a downsized 1.8L —Marcello Canova.

Waste 312
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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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Audi’s principle of downsizing: “ Forced induction replaces displacement ” One twin-scroll turbocharger per cylinder bank compresses the fresh air. From each pair of cylinders, the exhaust ports lead separately to a manifold and the turbocharger housing; they are not combined until immediately ahead of the turbine.

Audi 199
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Porsche unveils 2017 version of 919 Hybrid Le Mans prototype

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The engine combines downsizing turbo technology with efficient direct fuel injection; it delivers just under 500 hp (368 kW) and is the most efficient combustion engine from Porsche to date. The remaining 40% is generated by the exhaust energy recovery system. To recover exhaust energy, a small turbine is fitted in the exhaust tract.

Porsche 150
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Downsized 5.5L V8 Biturbo in S 63 AMG Delivers 25% Fuel Savings Compared to Predecessor; Stop-Start is Standard

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For the first time, AMG is also utilizing the advantages of gasoline direct injection with spray-guided combustion and piezo-electric injectors: thanks to its higher thermodynamic efficiency, this technology makes more efficient use of fuel and leads to lower exhaust emissions.

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2014 Sprinter van for US standard with new 2.1L diesel; new driver assistance features

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The familiar V6 diesel is available as an option. Since 2010, all Sprinters in the US have been powered by BlueTEC diesel engines, marking the first use of BlueTEC technology, with its selective catalytic reduction (SCR) exhaust aftertreatment system, in the commercial van market here. with a variable delivery rate.

2014 306
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Ford to bring 20 new engines and transmissions to China and improve fleet fuel economy by more than 20% by 2015; producing the new 1.0L EcoBoost in China

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The EcoBoost approach enables the downsizing engine capacity—replacing naturally-aspirated engines with much smaller units without sacrificing power output. Also, by 2013, nearly 80% of Ford’s global nameplates will be available with EcoBoost. By 2013, the company plans globally to produce 1.5 million EcoBoost engines annually.

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Renault 2010 Environment Workshop, Part 1: Combustion Engine Technology and Product Plans

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Renault’s ongoing downsizing strategy is aimed at reducing the cubic capacity of its engines in order to bring down fuel consumption and CO 2 emissions, without detracting from performance. It is available with several power outputs (currently from 65 to 110hp) and powers numerous Renault (from Twingo to Laguna) and Dacia models.