Home SCIENCE INFINITI Reinvents The Gasoline Engine – The First Variable Compression Ratio Engine

INFINITI Reinvents The Gasoline Engine – The First Variable Compression Ratio Engine

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Infiniti’s has developed the first variable compression ratio engine which will ever be used in a production vehicle. The compression ratio can vary from a highly boosted 8:1 ratio, to an Atkinson-cycle running 14:1 ratio.

image/text credit: Engineering Explained 

What this means is the engine can produce significant horsepower by using the low compression ratio with a turbocharger, or it can achieve excellent fuel economy by using a high compression ratio and an efficient engine cycle.

image/text credit: Engineering Explained 

This turbocharged gasoline engine can switch compression ratios on the fly. Here’s how it works—and how it achieves better power and efficiency.

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Now there aren’t simply to modes the engine runs in, it can vary and run at any compression ratio between 8:1 and 14:1, allowing for optimal performance and efficiency for whatever the driving condition may be.

The VC-Turbo engine will debut in the 2019 INFINITI QX50. It’s also incorporated within the Q Inspiration, a concept car INFINITI developed to speak to their new interior and exterior design language.

VIAEngineering Explained
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