What is a Supercharger and How does it work?

1 minuteread



A supercharger is a compressor that forces more air into an engine. They pressurize the air within the intake system to above air pressure. This makes the air entering the engine denser. On a supercharger, the impeller(s) are driven through the belt drive on the motor.


How it works:

Superchargers draw power mechanically from a belt or chain attached either to the engine’s crankshaft or an electrical motor. They increase the air intake by compressing the air above air pressure without creating a vacuum. This pushes more air into the combustion chamber so more fuel is added, which increases the general power output.

Superchargers are usually powered by the crankshaft. Most use an adjunct belt that wraps around a pulley. The pulley is connected to a drive gear that rotates a compressor gear. The compressor draws the air in and compresses it before sending it to the manifold. For the air to pressurize, superchargers need to spin fast. they’ll spin at speeds of fifty,000 to 65,000 RPMs.

Because compressed gas is hotter, the air must be cooled down before entering the manifold. If the air is just too hot, it’ll lose its density and not expand the maximum amount during combustion. That’s why superchargers are often paired with an intercooler. The intercooler reduces the temperature that the density of the air increases.

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