Supercharger is an air compressor generally used in super cars to increase pressure, temperature, and density of air supplied to an internal combustion engine. The compressed air supplies a greater amount of oxygen to engine for better combustion than the natural aspiration of engine, which makes it possible for more fuel to be burned and more power is produced by the engine.
Power for the supercharger is provided mechanically by belt, chain, or gear connected to engine's crankshaft. When power is provided by turbine powered by exhaust gas then it is called turbo-supercharger.
There are mainly two types of superchargers:
Positive displacement: Positive displacement pumps delivers a fixed volume of air per revolution at all speeds.
Major types of positive displacement pumps include:
- Roots,
- Lysholm twin-screw,
- Sliding vane,
- Scroll type supercharger also called G Lader.
Dynamic compressor: Dynamic compressors works on accelerating the air to high speed and
then exchanging that velocity for pressure by diffusing or slowing it
down.
Major types of dynamic compressor are:
- Centrifugal,
- Multistage axial-flow,
- Pressure wave supercharger,
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