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2026. 6. 30. 작업

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How does a supercharger differ from a turbocharger?

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Both turbochargers and superchargers perform the same function: compress air that will be fed into the engine. In other words, they are glorified air compressors. As with any compressor, both need energy in order to compress the air, which is where the difference between the two devices becomes relevant. Superchargers are belt-driven or chain-driven, so the compressor rotor is mechanically coupled to the rotation of the engine; when the engine rotates, the supercharger vanes rotate and compress air. Turbochargers use a completely different energy source - hot exhaust gases. The idea here is to make use of the hot gases to spin a turbine, which turns a shaft that turns the compressor vanes. As the hot exhaust gases perform work in turning the shaft, they cool down. The difference is concisely captured on this HowStuffWorks page: Unlike turbochargers, which use the exhaust gases created by combustion to power the compressor, superchargers draw their power directly from the crankshaft. Mo