When we trample accelerator to accelerate, electronic throttle opening, engine will send comes with the increase of rotational speed than coming from the noise of the engine, engine ultrahigh pressure from organic waste gas kinetic energy to promote organic exhaust gas turbo turning, when do the turbo work speed ratio, just for narrowing the surrounding gas turbo, Increase the intake and supply of air to the engine and improve the driving force of the engine.
As we receive fuel, the throttle opening decreases rapidly until it is in the standby state of shutdown. In other words, the engine does not have an intake, which means that the air in the intake will get stuck at the throttle. But at this moment the turbo does not stop working, because of the inertial force, the turbo still maintains a speed ratio above 100,000rpm and turns again. Now you can imagine that the gas is still continuously shrinking into the intake again. If the high pressure gas in the intake can not be discharged immediately, the working pressure in the intake will rise rapidly, which may lead to throttle damage or inlet collapse.
When the car driving, turbocharged constantly pressurized and at the moment, if you shift, or receiving suddenly, throttle will suddenly turn off to a small level, turbocharged because at the moment is still in the high speed rotation, will be a flash in the turbine blades to throttle the moment enclosed within the interior space, basically have very big working pressure, if the middle does not have a pressure relief opening, It will cause the destruction of the throttle, the rapid deceleration and even overturning of the turbocharged centrifugal impeller, the high pressure collapse of the pipe connector and other safety problems. At the moment, it is the work of the turbocharger actuator to timely relieve the working pressure in this section of the pipe.