How many fuel pump are there in a diesel engine?

In a diesel engine 1 or 2 fuel pump has been used. It is depending upon the engine by cylinder are used in engine .so I think the 1 or 2 depend on engine. Diesel engine injectors used this one of the pump for injection fuel inside the cylinder.for high pressurized fuel inject so need one extra pump. read more

The injection pump does the job of both the throttle and the ignition system needed in gasoline engines. When troubleshooting a gasoline engine, you check compression, fuel, and spark. A diesel doesn't have an ignition system, so there is one less thing to go wrong with it. read more

A fuel pump is a frequently (but not always) essential component on a car or other internal combustion engined device. Many engines (older motorcycle engines in particular) do not require any fuel pump at all, requiring only gravity to feed fuel from the fuel tank or under high pressure to the fuel injection system. read more