Injection pump

The injection pump controls the amount, timing, delivery rate, and distribution of fuel. It applies very high pressure to the fuel before pumping it into the injection nozzles of each engine cylinder. There are two types of injection pumps: inline types and distributor types.
The injection pump is driven by a camshaft that is rotated by the engine crankshaft via gears, etc. During this process, the cam moves the plunger up and down in the cylinder to pump fuel.

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