How turbocharging works

The exhaust gas of a diesel or gas engine is a useful resource, capable of producing an up to fourhold gain in engine power, lowering costs and reducing fuel consumption.

Engine output is determined by the amount of air and fuel in the combustion chamber and by the engine's speed. Turbochargers provide the engine with air at high pressure. More air is therefore forced into the cylinders and is available for combustion, increasing the engine torque and with it the engine output. The air is drawn through a filter-silencer and is compressed by the impeller. It passes via a diffusor and an after-cooler to the air receiver. The impeller is mounted on a shaft, which is driven by the turbine. Hot exhaust gas from the engine is directed by a guiding device onto the turbine blades, providing the power to drive the impeller.

Thanks to this relatively simple principle, engine output is increased fourfold. In other words: nearly 75 percent of the total output of an engine is the result of turbocharging. Read more



Last edited 2009-07-17
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