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Advantages of the Miller cycle engine?

Improved fuel efficiency: The Miller cycle engine can achieve higher thermal efficiency than the conventional Otto cycle engine. This is because the expansion ratio is greater than the compression ratio, which allows for more efficient combustion.

Reduced emissions: The Miller cycle engine also produces lower emissions than the Otto cycle engine. This is because the higher expansion ratio reduces the amount of heat lost to the exhaust, which results in lower NOx emissions.

Increased power: The Miller cycle engine can produce more power than the Otto cycle engine of the same size. This is because the higher expansion ratio allows for more complete combustion, which results in more power output.

Reduced knock tendency: The Miller cycle engine is less prone to knocking than the Otto cycle engine. This is because the higher expansion ratio reduces the pressure and temperature of the air-fuel mixture during compression, which makes it less likely to detonate.

Overall, the Miller cycle engine offers a number of advantages over the conventional Otto cycle engine, including improved fuel efficiency, reduced emissions, increased power, and reduced knock tendency. These advantages make the Miller cycle engine a promising technology for future internal combustion engines.