System Description: Description
| Charge air manifold | Charge air temperature sensor downstream of throttle valve | Boost pressure vacuum transducer | |||
| Pressure sensor downstream of throttle valve | Boost pressure control flap vacuum actuator | Air duct | |||
| Divert air switchover valve | Noise damper | Charge air hose | |||
| Charge air cooler | Charge air hose | Pressure sensor upstream of throttle valve | |||
| Charge air temperature sensor upstream of throttle valve | Throttle valve actuator | Pressure sensor downstream of air filter | |||
| Boost pressure control flap | Turbocharger | ||||
| A | Intake air | B | Charge air (Uncooled) | C | Charge air (Cooled) |
| 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 60 - 150 kPa (0.6 - 1.5 bar, 0.612 - 1.53 kg/cm2 , 8.7 - 21.75 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