What are the general components inside the turbocharger parts?

12-01-2022

What are the general components inside the turbocharger parts?

 

First of all, let's talk about the approximate structure of the turbocharger accessories. The exhaust gas turbocharger accessories are mainly composed of a pump wheel and a turbine, and of course there are other control components. The pump wheel and the turbine are connected by a shaft, that is, the rotor. The exhaust gas discharged from the engine drives the pump wheel, and the pump wheel drives the turbine to rotate. After the turbine rolls, the intake system is pressurized. The turbocharger is installed on the exhaust side of the engine, so the working temperature of the supercharger is very high, and the speed of the rotor of the turbocharger is very high during operation, which can reach hundreds of thousands of revolutions per minute. Such a high speed and The temperature makes the common mechanical needle roller or ball bearing unable to work for the rotor, so the turbocharger accessories generally use the full floating bearing, which is lubricated by the oil, and the coolant is used to cool the turbocharger.

 

In the past, turbocharger accessories were mostly used on diesel engines, and now some gasoline engines also use turbocharger accessories. Because the combustion methods of gasoline and diesel are different, the way the engine selects the turbocharger accessories is also different.

 

Turbocharging is very easy to exceed the boost value of 1bar, such as Golf R can reach 1.3. Many modified cars can easily achieve a high boost value of 1.5 after cylinder strengthening and computer tuning. For example, the original factory boost value of the tenth-generation Impreza STI is 0.9, and it can easily reach 1.5 after adjusting the engine computer. However, the household non-functional vehicles that we generally buy, such as the golf 1.4T and Regal 2.0T for home use, have a boost value much lower than 1, generally between 0.3-0.5, which can balance function, fuel consumption and engine life. . It can be seen from this that the boost value of turbocharging is much higher than that of turbocharging, and the corresponding improvement in engine power is also greater.

 

Construction turbocharger, a device used by a piston aero engine to increase the intake pressure of the cylinder. The air before entering the engine cylinder is compressed by the turbocharger to improve the air density, so that more air is filled into the cylinder, and then the engine power is increased. In addition to outputting larger take-off power, an engine equipped with a turbocharger can also improve the altitude characteristics of the engine.


Full Turbocharger


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