System Description: Description
| Exhaust manifold | Boost pressure control flap | Turbocharger | |||
| Divert air switchover valve | Noise damper | Pressure sensor downstream of air filter | |||
| Boost pressure control flap vacuum actuator | Air duct | Charge air hose | |||
| Charge air cooler | Charge air hose | Pressure sensor upstream of throttle valve | |||
| Throttle valve actuator | Charge air manifold | Charge air temperature sensor downstream of throttle valve | |||
| Pressure sensor downstream of throttle valve | |||||
| A | Charge air (Uncooled) | B | Charge air (Cooled) | C | Intake air |
| D | Exhaust gas |
The charge air control improves the maximum torque and maximum output by improving the efficiency of suction performed by supercharge. The turbocharger takes in ambient air through air cleaner by using the pressure energy of exhaust gas and rotating the turbine of turbocharger and sends the ambient air to the charge air manifold. When turbine speed increases and air flow grows, air in the pipe located upstream of the inter cooler is compressed and sent to the intercooler. Since the maximum boost pressure becomes 80 - 120 kPa (0.8 - 1.2 bar, 0.816 - 1.224 kg/cm2 , 11.6 - 17.4 psi) at this time according to the engine status and temperature rises, charge air is cooled by the intercooler to send to the boost distributor pipe.
The noise insulator reduces boost pressure variation and flow noise caused by sudden change in engine speed.
The charge air control has control items as follows.
- Charge air control
- Bypass air control