Fiat releases MultiAir engine technology – is this a fundamental breakthrough in internal combustion engine design?

Fiat Group used the Geneva Auto Show to launch a new engine technology which could ultimately be as important as the common rail diesel technology it invented 15 years ago. Dubbed MultiAir, the hydraulically-actuated variable valve timing (VVT) technology was first announced as a concept two years ago, and offers a more controllable flow of air during the combustion cycle in comparison with mechanical VVT systems. Vastly reduced fuel consumption and emmissions plus significantly more power are claimed, and the technology is even more effective when used with a supercharger or a diesel engine.

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