Turbocharger in Automobile

 Turbocharger Operation-: Turbocharger are used to increase engine power by compressing the air that goes into the engine's combustion chambers. Increased power comes from the additional fuel that the denser air accommodates. Today turbocharger are the most popular method of increasing engine compression. The turbocharger does not require a mechanical connection between the engine and the pressurizing pump to compress the 

                                                                  TURBOCHARGER

intake gases. Instead , it relief on the rapid expansion of hot exhaust gases exiting the cylinders to spin turbine blades then the name turbocharger). Because exhaust gas is a waste product, the energy developed by the turbine is said to be free Since it theoretically does not rob the engine of any of the power it helps to produce.

The turbocharger is located to one side of the engine, usually close to the exhaust manifold. An exhaust pipe runs between the engine exhaust manifold and the turbine housing to carry the exhaust flow to the turbine wheel. Another pipe connects the compressor housing intake to injector throttle body or carburetor. 

                                                   Pressure Regulator of Turbocharger

Inside the turbocharger, an exhaust-driven turbine wheel (hot wheel) is attached via a shaft to an intake compressor wheel (cold wheel). Each wheel is encased in its own spiral-shaped housing that serves to control and direct the flow of exhaust and intake gases. The shaft that joins the two wheels rides on bearings (generally the floating type). These bearings are part of a bearing lubrication and rotational housing cartridge assembly. One of the surest ways to get more power out of an engine is to increase the amount of air and fuel that it can burn. One way to do this is to add cylinders or make the same cylinders bigger. Sometimes, these changes may not be feasible - a turbo can be a simpler, more compact way to add power.