1
Q
What are the components in a fuel system?
A
Service tank Fuel lift pump Change over cock valve Filters Strainers Fuel injection pump Injectors
2
Q
What does a fuel lift pump do?
A
Supplies fuel at low pressure to the fuel injection pump.
3
Q
What does the fuel injection pump do?
A
Delivers high pressure fuel, in a measured amount, to the correct injector and the correct time.
4
Q
Explain spill return.
A
The injectors will inject high pressure, atomised fuel into the cyclinder. They will also send a small amount of the fuel back into the injection pump suction, this cools and lubricates the working parts of the injector.
Diesel Engines
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