The first applications of the turbocharger occurred in the first decades of the last century, mainly in the aeronautical field on spark ignition engines, to compensate for the loss of power due to the rarefaction of the air with the increase in altitude. These applications did not require particular mechanical accuracy, because the increase in performance compared to the naturally aspirated version was limited.
The example of turbocharger in the Institute is for automotive use, where the most widespread field of use is in the diesel engine sector, for which the notable increase in performance is accompanied by an improvement in the overall efficiency of the engine.
For years, the use is extending to the field of spark ignition engines, not only on high performance vehicles, but also on the so-called downsize engines, whose characteristic is to combine (at least in some areas of the operating maps) low consumption and high torque values.
This model, without liquid cooling of the turbine scroll, presents the wastegate valve, adjustable in different positions, to set the boost pressure in the intake manifold.
