1) Which one of the following drives the fuel feed pump?
A. Engine flywheel
B. F.I.P camshaft
C. Timing gears
D. Engine crankshaft
Quick Revision Notes
Fuel Feed Pump: Important AMVI Points
⛽ Main Function
Fuel feed pump supplies fuel from the fuel tank to the fuel injection pump through the fuel filter.
⚙️ Drive
In a diesel engine, the feed pump plunger is driven by the cam provided on the FIP camshaft.
📍 Location
The fuel feed pump is mounted on the fuel injection pump, commonly called FIP.
🔁 Working Idea
Downward and upward movement of the plunger creates suction and pressure to move fuel forward.
Simple Working of Fuel Feed Pump
- It is mounted on the fuel injection pump and driven by the camshaft of FIP.
- The feed pump plunger is operated by a cam through roller tappet and pressure spindle.
- When the plunger moves downward, fuel from the suction chamber moves to the pressure chamber through the pressure valve.
- When the plunger moves upward by spring force, fuel in the pressure chamber is pressurized.
- Then fuel moves from the pressure chamber to the FIP through the filter.
- During upward movement, suction valve opens and fuel from the tank enters the suction chamber.
AMVI Previous Question Style MCQs
Practice Questions with Explanation
2) In a diesel engine, feed pump is located on
A. F.I.P
B. Fuel tank
C. Fuel filter
D. Cylinder head
3) Which one of the following statements is NOT true about the fuel feed pump?
A. It is driven by engine crankshaft
B. It is driven by F.I.P camshaft
C. It is mounted on the F.I.P
D. It sucks fuel from the fuel tank
4) The fuel feed pump in a diesel engine is mounted
A. On the fuel tank
B. On the injection pump
C. On the injector
D. Inside the fuel tank
5) What is the main function of a fuel feed pump?
A. To inject fuel directly into the cylinder
B. To feed fuel from tank to fuel injection pump
C. To cool the fuel tank
D. To open the exhaust valve
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