Supercharger Cooling - Description & Operation
| Item | Description |
|---|---|
| 1 | Radiator - intake air coolant |
| 2 | Electrically operated coolant pump |
| 3 | Top hose |
| 4 | Charge air coolers - intake air cooling |
| 5 | Filling point for intake air cooling |
| 6 | Non-return valves - heater |
| 7 | Electrically operated coolant pump |
| 8 | Heater core |
| 9 | Water valve - heater control |
| 10 | EGR valve |
| 11 | Throttle body |
| 12 | Degas bottle |
| 13 | Expansion tank |
| 14 | Water pump |
| 15 | Thermostat housing |
| 16 | Bottom hose |
| 17 | Air bleed pipes |
| 18 | Radiator - main cooling system |
The cooling system for the supercharged engine is very similar to the normally aspirated engine, but with the addition of a water cooled, intake air charge cooling system. This comprises a radiator, an electrically operated water pump and two charge air cooler assemblies (heat exchangers). The system works independently, but is connected to the main cooling system at the bottom hose to allow for thermal expansion and to help to prevent unwanted circulation.
The supercharger cooling system is integrated with in the engine cooling system but uses a separate radiator and electrical water pump.
Radiator
The supercharger radiator is of aluminum construction. The radiator is mounted to the cooling module between the oil cooler and the air conditioning condenser. A coolant drain plug is located at the left-hand bottom of the radiator.
Water pump
The charge air cooler water pump is electrically driven, continuously while the ignition is on. The charge air cooler water pump provides an efficient coolant flow to the charge air coolers.