Location
The fuel cooler (2) is located behind the fuel filter module (1).
1 | Fuel filter module |
2 | Fuel cooler |
3 | Coolant outlet of fuel filter module |
4 | Coolant inlet |
B | Coolant |
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Task
The fuel cooler (2) cools the heated fuel, which is guided via a return line from the pressure converters of the fuel injectors into the fuel filter module (1).
2 | Fuel cooler |
4 | Coolant inlet |
5 | Coolant outlet |
6 | Fuel inlet |
7 | Fuel outlet |
8 | Fuel cooling ducts |
9 | Cooling duct |
A | Fuel |
B | Coolant |
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Structure
The fuel cooler (2) is designed as a shell type cooler.
Function
The heated fuel from the pressure converters of the fuel injectors flows into the fuel inlet (6), through the fuel cooling ducts (8) to the fuel outlet (7). From there, the cooled fuel flows to the fuel pump via a line in the fuel feed line of the fuel filter module.
The fuel cooler (2) is supplied with coolant from the crankcase via the coolant inlet (4). The coolant flowing through the cooling ducts (9) cools the fuel, reaches the fuel filter module (1) via the coolant outlet (5) and flows directly to the coolant pump via the fuel filter module coolant outlet (3).