Optimized Production Technology


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Optimized Production Technology

Optimized Production Technology

If an engine could completely fill the cylinder with air then it would have 100 percent volumetric efficiency, but it's rare for anything other than a full-on race engine to do this. With only normal air pressure to push air into the cylinder, highly tuned naturally aspirated engines can use resonance in the air inlets and valve overlap to increase the amount of air getting into the engine, but that only goes so far.

What is needed is something that increases the pressure of the air getting into the engine, and that means a turbocharger. A turbo relies on exhaust gases to spin a compressor wheel that forces air into the engine.

How does a turbocharger work?

A turbo is essentially two fans connected to each other via a shaft. One of the fans sits in the exhaust stream and has fins that are spun by the exhaust gas flowing past. Through the shaft and on the other side there is another fan that pumps air from the air intake to the engine. The air gets pumped through the compressor wheel/fan and is forced towards the outside of the turbo through centrifugal action and then into the engine.