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EK-Motor : 2021/OCT/06

Question

Q6. With reference to a main engine fuel system of the high pressure common rail type:

(a) Sketch a common rail fuel injection system from booster pump inlet to cylinder head fuel valves, labelling the MAIN components; (8)

(b) Explain how the fuel pumps are operated and the common rail pressure is maintained ;(8)

(c) Explain how fuel injection timing and quantity is regulated for the common rail fuel system sketched in part (a). (4)

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