For other meanings, see supercharger A supercharger (blower) is a gas compressor that forces more air and thus more oxygen into the combustion chamber(s) of an internal combustion engine than is achievable with ambient atmospheric pressure (as seen in a naturally-aspirated engine, see forced induction). The additional mass of oxygen-containing air forced into the engine improves its volumetric efficiency, allowing it to burn more fuel in a given cycle and thereby produce more power. A supercharger can be powered mechanically by belt, gear and shaft, or chain-drive from the engine's crankshaft. It can also be driven by a gas turbine powered by the exhaust gases from the engine. Such turbine-driven centrifugal superchargers are correctly known as turbo-superchargers, or more commonly, turbochargers. Types of supercharger There are two main types of supercharger defined accordi

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